Evolium A9115 Remote RF Unit Hardware Description 211380000e03

8/12/2019 Evolium A9115 Remote RF Unit Hardware Description 211380000e03

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Evolium UTRAN

Evolium A9115 Remote RF Unit

Hardware Description

Node B Document

Sub-System Description

Release R5 from MR1

3BK 21138 AAAA TQZZA Ed.03

Z3EV00007-0035 Ed.03


2/76

Status RELEASED

Short title Evolium A9115 Remote RF Unit Hardware Description

All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Evolium.

BLANK PAGE BREAK

2 / 763BK 21138 AAAA TQZZA Ed.03

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Contents

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 RRU Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Basic Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.1.1 Optical Interface RRI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.2 RRU Central Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.3 RRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.4 OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2.1 Basic RRU Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2.2 Basic RRH Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2.3 Rx Low Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.3 Interfaces and Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.3.1 RRU Connection Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.3.2 BTI Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.3.3 RBI Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.3.4 RRI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.3.5 RF Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.3.6 XRT Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.3.7 MMI Maintenance Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.3.8 External Alarm Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.4 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4.2 Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4.3 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1.5 Lightning and Over-voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191.5.1 AC Input Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191.5.2 Alarm Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2 RRH Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.2 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.3 RRH Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.3.1 Inner Module Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252.3.2 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.4 Mounting and Fastening Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.4.1 Mounting Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.4.2 Installation and Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302.4.3 Mast or Pole Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322.4.4 Connectors and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5 Cover for Sun Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5.1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332.5.2 Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332.6 Top of Cover with Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2.6.1 Fan Cassette. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352.6.2 Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3 RRH Hardware Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.2 Connection Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.2.1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.2.2 External Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403.2.3 Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433.2.4 Lightning and Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.2.5 ACCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443.2.6 RCON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45


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Contents

3.2.7 COBO, RCON and ACCO Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 463.2.8 COBO Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.3 MANRU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483.4 MTROC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503.5 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.5.1 AC/DC Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.5.2 DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523.5.3 External AC Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.5.4 Local Power Supply (DC/DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.5.5 Battery Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.5.6 Warm up of the RRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.6 RTEU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543.7 Optical Interconnection between CP and RRH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

3.7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563.7.2 Optical Fiber Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563.7.3 TROC/MTROC Optical Interface Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613.7.4 SFP Laser Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4 Site Support Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4.1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.2 Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654.3 Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654.4 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654.5 Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654.6 Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.7 Thermal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.8 Battery Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.9 SSC - RRH Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.10 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.11 Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5 CP Configuration and Hardware Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705.3 CP Rack Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

5.3.1 MBI3 Rack Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705.3.2 MBO1E Rack Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

5.4 TROC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 725.4.1 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 725.4.2 TROC Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745.4.3 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745.4.4 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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Figures

Figures

Figure 1: RRU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 2: Single Site with Three Sectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 3: RX Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 4: RRH Housing Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 5: RRH Assembly Front Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 6: RRH Assembly Back Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 7: RRH Label Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 8: Mounting Points for RRH and its Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 9: Installation With Rear Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 10: Installation using the Lifting Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 11: MMFI Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 12: MMFI Installation on a Vertical Mast or Pole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 13: RRH Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 14: Fan Cassette. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 15: Mechanical Assembly of the Top of Cover with Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 16: RRH Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 17: COBO Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 18: ACCO Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 19: RCON Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 20: COBO Mechanical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 21: COBO Mechanical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 22: MANRU Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 23: MTROC Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 24: RTEU Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 25: Optical Two-Fiber Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 26: Optical Six-Fiber Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 27: Optical Fiber (Metro) Ring Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 28: Optical Fiber (Railway) Line Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 29: Integrated Optical Fiber Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 30: Outdoor Optical Fiber Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 31: TROC/MTROC Optical Interface Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 32: SFP Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 33: SSC Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 34: CP MBI3 Rack Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 35: CP MBO1E Rack Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 36: TROC Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Figure 37: TROC Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Figure 38: TROC Front View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75


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Tables

Tables

Table 1: Environmental Conditions for Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 2: Environmental Conditions for Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 3: Environmental Conditions for Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 4: Installation Assembly Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 5: RRH Dimensions and Wight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 6: RRH Label Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 7: External Alarm Values and Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 8: RCON LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 9: ACCO Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 10: RCON Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 11: MANRU Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 12: AC Input Voltage Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Table 13: RTEU Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table 14: SFP Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Table 15: SSC Battery Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Table 16: SSC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 17: SSC Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table 18: TROC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

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Preface

Preface

Purpose This document describes the Evolium A9115 Remote RF Unit (RRU) modules,its architecture and housing.

The purpose of this document is to explain how the RRU hardware componentsare designed and how they operate.

Refer to theEvolium Node B Functional Description for detailed functionaldescriptions.

Your system may not have all the features described in this document.

Whats New In Edition 03

The TROC front panel view was corrected. Refer to Front Panel (Section 5.4.4).

In Edition 02The O&M Ethernet cable from TROC to SUMU was added. Refer to:

CP Rack Layout (Section 5.3)

TROC (Section 5.4) .

In Edition 01

First official release of document.

Audience This document is intended for anyone interested in learning about the RRU.

Assumed Knowledge The reader must have a:

General knowledge of UMTS and especially Node B functions

Good understanding of RNS and UTRAN concepts.


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1 RRU Architecture

1 RRU Architecture

This section provides an overview of the main architecture of the RRU.


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1 RRU Architecture

1.1 Basic Principles

By introducing the RRU, a single Node B is split into a CP central part baseband shelf (SUMU + BB boards) and in RRH remote part for receive andtransmit radio frequency handling. Each RRH replaces one ANRU and oneTEU. It is designed for outdoor use and is usually mounted nearby the antenna.

The following figure shows the Node B central part and the remote RF part.

The Node B central part holds the:

Iub fixed line

Network transmission part

Signal processing part.

The remote RF part holds the:

RF transmission part

Antenna stage part.

SUMU

BB 1

CAIub

TX 1

RX

BB 2

BB x1

BB x

SBI

RBIBTI

Antennanetwork

stage

Radiointerfacestage

Basebandprocessingstage

Transmissionstage

RRM

Remote Parts

RP 1

Central Part

TX n

RXRRM

RP n

RRM

RRMRRI

RRI

Opticalfiber

Figure 1: RRU Block Diagram

The RRU supports HSDPA and is HSUPA ready.

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1 RRU Architecture

1.1.1 Optical Interface RRI

The new RRI interface is the key part of the RRU. This interface connectsthe CP with the remotized RF section RRH. The RBI, BTI and the IOM aremapped to the RRI. One SFP terminates one RRI.

The telecom traffic between the CP and the RRH, i.e. the BTI links between thefirst cluster BBs and RTEUs and the RBI links between the MANRUs and theBBs, are conveyed between TROC and MTROC as Ethernet frames.

The physical connections for the RRI uses optic fibers between Node B andRRH.

1.1.2 RRU Central Part

Extending the Node B architecture for the use of remote RF equipment, theNode B is reduced to a CP; the SUMU, the BB plus an additional transportinterface.

At Node B a new module, the Transmit and Receive to Optical Converter

TROC, replaces the TRAB board.

The TROC:

has six slots for SFP modules

supplies the SFPs with low voltage power

supervises the SFPs (e.g. RRI link quality or SFP temperature)

serves the SFPs with all Node B internal signals.

1.1.3 RRH

The RRH holds the RF section plus the additional RRI transport interface.

Compared to the standard Node B, in RRH the ANR is replaced by the MANRUand the TEU is replaced by the RTEU.

The MTROC handles the interface with the CP. It also handles the control andO&M functions for the RRH.

The RRH holds up to two SFPs. In point to point connections only one SFPis equipped and there is no redundancy for link failures at the RRI link, theattached SFPs or the RRH itself. If protection for the RRI is mandatory, theRRH can be operated in a ring. In this case two SFPs are installed.


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1 RRU Architecture

1.1.4 OAM

In the CP the SUMU OAM software controls the local boards (BBs, TROC) viaBCB and IOM, like in the standard Node B.

SUMU OAM also controls the remote modules (MTROC, MANRU, RTEU)via BCB and IOM. But, as the local BCB and BSII buses do not exist forthe remote modules, BCB/IOM are routed through TROC and MTROC tothe remote modules.

The protocol used is TCP/IP over Ethernet; IOMR over TCP/IP is used tobuild IOM and BCB frames.

TROC does not see anything from IOM, BCB or TCP/IP; it has a pure Ethernetswitching functionality.

RRH has no OAM impact for existing modules (BB, (M)TEU, (M)ANRU) exceptfor SUMU.

The existing OAM scenarios are maintained. I.e. once the link betweenMTROC and TROC is configured, it is transparent for the OAM SW, if the

modules ((R)TEU, (M) ANR) are remote or local.

The new modules TROC and MTROC support the standard OAM scenarios likesoftware downloading and activating, configuration, alarm reporting.



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1 RRU Architecture

1.2 Configuration

1.2.1 Basic RRU Configuration

The following figure shows the basic configuration with three RRHs. At the

local site, the CP is for example located in the basement and the RRHs remoteon the rooftop.

RP

RP

RP

Node B

CP

remote site

optical fiber

sector 1

sector 2

sector 3

local site

Figure 2: Single Site with Three Sectors

1.2.2 Basic RRH Configuration

The RRH shares the form factor and the installation concept with the Micro

Node B. Also some Micro Node B elements are re-used.The receive sensitivity is about the same as with the standard Node B.

Due to different transport scenarios two variants of SFPs are supported. Oneor two SFPs can be equipped on site.

After the configuration of TROC/MTROC, the RBI/BTI links are available as inthe CP. RBI/BTI cabling detection is only possible after the configuration ofTROC and MTROC.


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1 RRU Architecture

1.2.3 Rx Low Redundancy

Rx Redundancy means that the Rx path of a sector is served by two differentANRUs. With Rx Low Redundancy the same ANRU/RRH serves a sector withthe consequence that in case of failure of this ANRU the sector is disabled.

sector Y

RP asector X

RP b

Figure 3: RX Redundancy



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1 RRU Architecture

1.3 Interfaces and Interconnections

1.3.1 RRU Connection Principles

The RRU system can be configured for a lot of applications.

In the following the basic principles for configuring a RRU system are given:

One Node B can serve up to six sectors.

One RRI link is capable of handling the traffic of in minimum one sector

(e.g. one RRH).

A remote site with one or more RRHs is linked to the Node B by a single or

multiple RRI.

The RRI type (link speed) is depending on the required RF performance

(number of IQ bits), numbers of sectors and number of carriers.

The SFP type is depending on the RRI interconnect length, required linerate and link redundancy.

The distance between the RRHs on the same site (e.g. Tree) is limited by

the max. interconnection length of 100 m.

1.3.2 BTI Connections

The BTI links are routed over TROC and MTROC to the destination RTEU.Only active BTI links are routed. Active BTI links are assigned by the HSIFcomputation. TROC is configured to switch the correct BTI links to the remoteRTEUs and local TEUs. The remote RTEUs are addressed with MAC

addresses. The local TEUs are connected with BTI cables from the BTI frontpanel.

1.3.3 RBI Connections

The RBI links are routed over MTROC and TROC from MANR to the BBs.Only active RBI links are routed. Active RBI links are assigned by the HSIFcomputation. MTROC is configured to switch the RBI links to the correct RBIconnectors at TROCs backplane.

1.3.4 RRI

The RRI is the transport interface between the CP and the RRH.The RRI is a transport interface being not covered by the 3GPP standard.

The SFP grey single mode fiber covers:

2.4576 GBps

10 km distance.

For more details of the SFP refer toOptical Interconnection between CP andRRH(Section 3.7).


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1 RRU Architecture

1.3.5 RF Connectors

The RF interface is consisting of the following connectors on the upper shelf ofthe RRU housing:

ANTA holds the receive and transmit signal through the A part of the

RANU diplexer

ANTB holds the receive signal through the B part receive filter of the RANU.

1.3.6 XRT Interface

The RRH is equipped with a serial RS232 interface. It is used to establish aPPP connection to an external device. The RRH acts as PPP Server, i.e. theMTROC is responsible for the IP address assignment (NCP) for the PPPinterface on the external device.

The usage of the RS232 interface is foreseen for the antenna tilt controller(ADC).

1.3.7 MMI Maintenance Terminal Interface

The RRH is equipped with a dedicated RJ45 port for maintenance purposes. Itis used to connect a LMT running the NEM-B tool. The terminal is an ethernethost and is configured as DHCP client.

1.3.8 External Alarm Interface

On this interface eight external alarms can be connected. The external alarminterface is connected to the BCB terminal on the MTROC.



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1 RRU Architecture

1.4 Environmental Conditions

1.4.1 Operation

The RRH is designed to operate in the following environmental conditions:

Ambient temperature range withoutoptional top fan unit

-33 C ... +45 C

Ambient temperature range withoptional top fan unit

-33 C ... +55 C

Relative humidity range 15 % ... 100 %

Absolute humidity range 0.26 g/m ... 29 g/m

Temperature change rate 0.5 C/min

Air pressure 70 kPa ... 106 kPa

Table 1: Environmental Conditions for Operation

1.4.2 Transportation

The RRH is designed to be transported in the following environmentalconditions:

Ambient temperature range -40 C ... +70 C

Relative humidity range max. 95 %

Absolute humidity range max. 60 g/m

Temperature change rate 0.5 C/min

Air pressure min. 70 kPa

Table 2: Environmental Conditions for Transport


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1 RRU Architecture

1.4.3 Storage

The RRH is designed to be stored in the following environmental conditions:

Ambient temperature range -45 C ... +55 C

Relative humidity range max. 100%

Absolute humidity range max. 25 g/m

Temperature change rate 0.5 C /min

Air pressure min. 70 kPa

Table 3: Environmental Conditions for Storage



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1 RRU Architecture

1.5 Lightning and Over-voltage Protection

Both the live and neutral conductors of the AC input are lightning-protected.

Over-voltage protection for the internal test interfaces (transmission, MMI, TTLsignals, etc.) is implemented on the MCON inside the COBO.

1.5.1 AC Input Protection

Both the live and neutral conductors of the AC input are lightning-protected.

The protection elements are installed inside of the COBO unit.

1.5.2 Alarm Protection

On the MCON the external alarm inputs are protected by a gas-filled surgearrester against lightning.

The nominal voltage Vn is 90 V, the nominal impulse discharge current wave(8/20)us is 5 kA.


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2 RRH Assembly

2 RRH Assembly

This section describes the RRH:

Housing

Cover

Fastenings.


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2 RRH Assembly

2.1 Overview

The RRH unit consists of two to four separate components:

The housing unit itself

Mounting and fastening equipment

An optional cover

An optional top fan unit.

The following table lists the installation components and describes their role inthe assembly.

Component Purpose

RRH housing RRH functional component container

COBO External interface to the RRH

MOFRA Mounting point for RRH

MMFI Additional bracket for tubular mounting positions

Protective cover Environmental protection for the RRH, which is used for sun protection, consistsof two parts (back and front). This cover is optional for indoor installations andmandatory for outdoor installations. For protection against vandalism, it isrecommended you also install the cover for indoor installations.

Protective cover withtop fan

Environmental protection for the RRH in an extended temperature range, which isused for operation for high temperatures up to +55 C.

Table 4: Installation Assembly Components



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2 RRH Assembly

2.2 Dimensions and Weight

Entity Length Width Depth Volume Weight

RRH 570 mm 384 mm 137 mm 26 l 21,1 kg

RRH + MOCO 750 mm 384 mm 160 mm 28 l 26,6 Kg

RRH with cover 818 mm 450 mm 190 mm 54 l 32,1 kg

RRH with cover + topfan

940 mm 450 mm 190 mm 62 l 35,6 kg

Table 5: RRH Dimensions and Wight


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2 RRH Assembly

2.3 RRH Housing

The RRH housing includes:

Digital and analog signal processing

The MTROC unit

The AC/DC internal power supply

Optical fiber interfaces

Additional alarm and service interfaces (for example Ethernet for NEM-B).

If there is a hardware failure inside the RRH housing, the entire RRH must bereplaced. Onsite intervention for repair is not foreseen. If there is a hardwarefailure within the COBO, the MCON or ACCO can be replaced.

Figure 4: RRH Housing Outline



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2 RRH Assembly

2.3.1 Inner Module Assembly

The following figures show the module assembly inside the RRH housing.

If there is a hardware failure inside the RRH housing, the entire RRH must becompletely replaced. Onsite intervention for repair is not foreseen.

Figure 5: RRH Assembly Front Shell

Figure 6: RRH Assembly Back Shell


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2 RRH Assembly

2.3.2 Labels

Several labels are attached on the RRH housing. See the following figure forthe position of the labels and the table below for a description of the labels.

10 116 7

59

12

13

14

1 2

3

4

Figure 7: RRH Label Positions



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2 RRH Assembly

Label Content

1 Mnemonic and 3BK code + bar code

2 Factory serial number + bar code

3 BSP identification + bar code

4 Factory label: Marked and warranty follow up incl. CE label

5 Power supply voltage, power consumption + product identification

6 Hot surface warning

7 High voltage warning

9 ALCATEL label

10 Antenna A connector for RX and TX

11 Antenna B connector for RX diversity

12 MOCO Mnemonic and 3BK code + bar code

13 MOCO Factory serial number + bar code

14 MOCO Factory label: Marked and warranty follow up

Table 6: RRH Label Definitions


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2 RRH Assembly

2.4 Mounting and Fastening Equipment

The RRH can be easily fastened with:

Additional mounting devices (block and tackle on a gallows) directly on a

wall or pole in small confined spaces by one person

HAKI and MAKI tools directly on a wall or pole by two people.

2.4.1 Mounting Frame

The MOFRA mounting frame is connected to the COBO connection box atits base which provides a termination point for all external interfaces. TheMOFRA is used for fastening the RRH to a wall or a mast. The mounting framecontains an adapter for a block and tackle on a gallows for easy installation ofthe RRH housing.

It is possible to remove COBO from MOFRA if necessary.

An optional mast securing set is available, which is used for securing theRRH to a pole or mast.

The inlets (cable screw fixing, glands) for the external cables are at the bottomand top sides of the connection box (COBO ).



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2 RRH Assembly

Figure 8: Mounting Points for RRH and its Components


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2 RRH Assembly

2.4.2 Installation and Fastening

The RRH is installed using:

A mechanical mounting frame complete with the COBO

Mounting brackets if required

An optional four-section protective cover.

Together, the assembly of MORA and COBO is known as the MOCO. Theframe provides a mounting point for the RRH unit and the cover gives protectionfrom the environment and prevents unauthorized access.

Installation of the RRH is performed using:

A mechanical mounting frame, complete with COBO

Mounting brackets if required

An optional four section protective cover.

As part of the site preparation the MOCO must first be installed. Afterwardsthe RRH unit is fastened at MOFRA and COBO.

The housing is fastened to the MOFRA as follows:

the protective strip is removed from the mating face of the COBO to expose

the interface connectors.

The RRH is hoisted into position using lifting equipment.

The RRH is fastened to position to the mounting points on the top edge of

the MOFRA.



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2 RRH Assembly

Figure 9: Installation With Rear Protective Cover

Figure 10: Installation using the Lifting Equipment


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2 RRH Assembly

2.4.3 Mast or Pole Fastening

The MMFI is used to mount the RRH on a mast or pole, when a suitable wall isnot available. The MMFI front brackets are first fastened to the MOCO andoptional rear cover. This assembly is then bolted to the mast or pole using therear MMFI brackets and suitable fasteners.

The MMFI brackets are designed to grip a mast or pole 80 mm to 160 mm indiameter. They are manufactured from heavy-duty steel plate.

Figure 11: MMFI Brackets

Figure 12: MMFI Installation on a Vertical Mast or Pole



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2 RRH Assembly

2.4.4 Connectors and Cables

The transmission fiber cable, the power cable, the interconnection cable andthe antenna cables can be easily connected and disconnected.

If the sun protection cover is mounted, unauthorized persons cannot disconnectthe cables.

2.5 Cover for Sun Protection

The cover is used for outdoor sun and vandalism protection.

2.5.1 Functional Description

The protective cover is comprised of three parts:

Front

Back

Bottom

Front without or with fan hat.

The cover can be replaced by a cover with cooling fans for extremeenvironments.

Figure 13: RRH Protective Cover

2.5.2 Fastening

The rear section of the cover must be fitted before mounting the MOCO on awall. The remaining two sections are fitted after the RRH is mounted.

If the sun protection cover is mounted, unauthorized persons cannot disconnectthe cables.


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2 RRH Assembly

2.6 Top of Cover with Fan

The top of cover with fan is only used for the RRH in an extended temperaturerange. Up to an ambient temperature of +45 C the RRH can be used without afan. For temperatures above +45 C (up to +55 C) additional fans must beinstalled to avoid extreme temperatures inside the RRH.

The top of cover with fan is divided into three main parts:

Fan cassette (containing fans and temperature sensors)

Fan board (containing AC/DC converter, temperature monitoring, and

alarm detection)

Plastic housing (for the fan cassette and for the fan board).

The protective cover is mandatory for the top of cover with fan installation.

The AC/DC converter provides a single output voltage of 24 VDC, used tosupply the fans. A linear regulator provides +5 VDC from the 24 VDC output to

feed the monitoring circuit.The monitoring circuit on the fan board generates an alarm if one of the fans orthe power supply malfunctions. The monitoring circuit switches the fans on andoff depending on the temperature.

If the fans are switched on the speed of the fans is regulated as follows:

If the temperature on the top of the RRH reaches +53 C (ambient

temperature 25 C ... 30 C, maximum power on the antenna outputs) the

fans are switched on. The fans are switched off with a hysteresis at +30 C on the top of the RRH.

If the temperature on the top of the RRH reaches +56 C the fans run with

full speed (2300 r.p.m.). If the temperature is below +33 C the fans run with

half speed (lowest possible fan speed, 1150 r.p.m.).



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2 RRH Assembly

2.6.1 Fan Cassette

The fans have their own control loop performed with an temperature sensor.

Figure 14: Fan Cassette

A sensor located close to the fans measures the temperature and sends theresult to the fan board where the fans are switched on/off and where theirspeed is controlled.

Hot insertion of the fan cassette is possible without disconnection of the mainsfrom the top of cover with fan.


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2 RRH Assembly

2.6.2 Mechanical Assembly

The top of cover with fan housing is part of the protective cover and containsthe fan cassette and the fan board.

The lower part of the top of the protective cover is fastened to the frontprotective cover of the RRH by three retaining screws. The top of the protectivecover is fastened to the lower part with two hinged joints at the front side. Thetop of cover is locked by a bolt at the back.

Fan

Cassette

CableCoupling

Fan

Board

CableCoupling

To

ABISCO ToACCO

Bolt

Top

HingedJoint

Base

Figure 15: Mechanical Assembly of the Top of Cover with Fan



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3 RRH Hardware Modules


This section describes the RRU modules in the RRH.

If there is a hardware failure inside the RRH housing, the entire RRH must becompletely replaced. Onsite intervention for repair is not foreseen.


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3.1 Overview

The RRH is build of five sub modules:

MTROC performs the management of the RRI connections, the SFPs and

other internal interfaces.

MANRU, which is the receiver unit with two receivers for RX diversity

function. It has same function and same interfaces as ANRU inside Node B.

RTEU transmitter unit. It has same function and same interfaces as TEU

inside Node B.

CoBox is the connection box for all external interfaces.

Power Supply has an input for AC and DC.

RBI

BCB

BSII

RRI1M

fiber or copper

RRM

RRM

RI

Power Supply

MTEU

MANRU

MTROC

RCONin

COBO

BTI

BCB

BSII

RFI

RRI1S

RRI2M

RRI2S

XRT

MMI

externalalarms

Antenna A

Antenna B

RRH

Figure 16: RRH Architecture

Refer to the Evolium A9100 MBS Hardware Description for detailed CPhardware descriptions for SUMU and BB.



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3.2 Connection Box

The connection box, also called COBO, is divided into two separate chambers.One chamber contains the RCON board, which provides the RRH with MMIaccess, external alarms connection and the test interfaces. The secondchamber provides the interconnection to mains and to the external top fan

(option).

3.2.1 Functional Description

The COBO provides a set of clamp strips and connectors for the connections tothe outside and is linked to the MTROC and the power supply MPS. This areacan be divided into three subsets of connectors:

AC Power Supply clamp strips including protection and connector for top fan

unit

Remote interfaces to provide external access to the MTROC (external

alarms, inter-entity bus, MMI)Remote Inventory to read and write inventory data

Optical fiber splice holder and fiber cableway to MTROC.

A9115 RP

MTROC

ANT A ANT B

AC in

AC out

Fan

RCON

ACCO

Figure 17: COBO Assembly


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3.2.2 External Interfaces

The external interfaces of the RRH entity are located at the lower side, facingthe mounting frame. The interfaces of the entity are connected to the COBO ofthe mounting frame, where most of the external cables are terminated. Thereare three categories of external interfaces.

Depending on the category, the interfaces of different types are terminated indifferent locations (the entity itself or the connection box).

Interfaces terminated as bare wires on clamp strips in the connection box of

the mounting frame (i.e. power supply, external alarms,...) or interfaces

connected directly on the MTROC (Master-Slave cables, optical fiber).

Interfaces terminated on the RRH entity itself (i.e. antenna connectors)

Interfaces needed for maintenance only (i.e. MMI).

3.2.2.1 MMI

This interface permits the connection of the NEM (Network Element Manager)terminal, used for two purposes: O&M configuration and transmission purpose.This is an Ethernet 10/100Mbit interface with a RJ45 connector located on theRCON board in the COBO.

3.2.2.2 Antenna Tilt RET

This interface enables connection of external equipment that turns/moves theconnected antennas to a different position. It is a serial RS232 interface with aprogrammable baud-rate.

3.2.2.3 XCAL_CLK

The clock output CLK Calib. is used to measure the 2.166 MHz frequency.

3.2.2.4 UMTS Frame

The frame output UMTS_frame (BFN=0) is used to synchronize externalequipment for test purposes.



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3.2.2.6 LEDs

There are six LEDs on the RCON board:

LED Name Function Meaning

LED1,OLSTAT Optical link status(OLStat) LED on: optical link ROF1 and ROF 2 is upLED LL: optical link ROF1 up

LED SS: optical link ROF2 up

LED off: optical link ROF1 and ROF 2 is down

Fault Failure of MTROC andother modules of RRH

LED on: alarms on MTROC or SFP module appears

LED LL: non fatal alarm on MTROC or SFP module

LED off: no alarm

LED2,OP Operational state LED on: application SW is running

LED LL: SW mismatch or fallback to origin

LED LS: state of module is unknown

LED off: origin SW is running

PS Power supply on LED on: Power supply on

LED off: Power supply off

MMI MMI traffic LED on: TCP link to SUMU is up (Ethernet)

LED off: TCP link to SUMU is down (Ethernet)

LINK LMT Ethernetconnected

LED on: Ethernet connected

LED off: Ethernet not connected

Table 8: RCON LEDs

The different blink modes are denoted by the on/off times:

ON: LED fully lit

LS: Long on, short off

LL: Long on, long off

SS: Short on, short off



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3.2.3 Power Distribution

The RRH represents the concept of a central power-supply. Eachpowered module (RTEU, MTROC, MANRU and RCON) is supplied by theAC/DC-converter RRHPS.

3.2.3.1 FusesTwo fuses with a nominal current of 2.5 Amps protect the entire RRH andare located in the right-hand compartment of the COBO. The top fan unit isprotected by two fuses with a nominal current of 1.25 Amps. (Line and Neutral).Both pairs of fuses are located on the ACCO board.

3.2.3.2 Cabling and Interconnections

The internal connection of the AC supply voltage to the MPS inside the RRHis performed via a filter feed. The filter is connected to the mechanical andelectrical ground of the RRH housing and is part of the power supply RRHPS.

3.2.4 Lightning and Overvoltage Protection

Lightning and overvoltage protection are implemented on the MCON as follows:

Lightning protection of the external interfaces

Over-voltage protection of the internal test interfaces (MMI, trace, and

TTL signals).

Both the line L and neutral N conductor of the AC Input are protected by alightning protection. This protection is installed on ACCO.


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3.2.5 ACCO

The ACCO board contains the clamp strips to terminate the AC input line andthe two AC output lines for the slave1 and slave2 connection. It also contains aconnector for external top fan unit.

Fuses are implemented for AC out RRH (LINE and NEUTRAL) and for FANout(LINE and NEUTRAL).

The RRH itself is connected via an IEC connector.

The following interfaces and connectors are available on the ACCO:

Interface Connector type Connector number

AC in Clamp strip X400

AC out RRH IEC X401

FAN out GIC X402

SLAVE1 out Clamp strip X403

SLAVE1 out Clamp strip X403

Table 9: ACCO Connectors

L

PE

N

L L

L

PE PE

PE

N N

N

L

L

N

N Fan

Fuses RP

T2,5A

Fuses Fan

T1,25A

AC Mains in

AC out to

RP

X402

X401

X400

X403X404

Slave1Slave2

Figure 18: ACCO Mechanical Assembly



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3.2.6 RCON

The RCON board contains connectors for maintenance interfaces i.e. MMIand clamp strips for external alarms.

The following interfaces are available on the RCON:

Interface Connector type Connector number

MMI RJ45 X202

Remote inventory SIL8 X203

Antenna tilt Clamp strip X204

CLX Calib. MCX X101

UMTS Frame BNC X102

Alarm Clamp strip X103, X104, X105, X106

Table 10: RCON Connectors

X202

OM_TR

Fault

OP

GND

X102

X101

X200

X106X107

X105

X104

X103

PS_OK

X203

X100

Ant. Tilt

RX

TX

GND

UMTS

Frame

Trace

CLX

Cal.

PMS

COBO Ext.Alarm 7+8

Ext.Alarm 5+6

Ext.Alarm 3+4

Ext.Alarm 1+2

MMI

Link M_OK

X204Door

switch

Figure 19: RCON Mechanical Assembly


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3.2.7 COBO, RCON and ACCO Mechanical Assembly

The following figure shows the ACCO and the RCON housed together inthe COBO.

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3

1 2 3

1 2 3

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

11 2

1 2

1 2

Figure 20: COBO Mechanical Outline

In case of a hardware failure inside the COBO, the RCON or the ACCO can bereplaced.

Refer to the Evolium A9115 Remote RF Unit Maintenance Handbookfor

detailed maintenance procedures.



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3.2.8 COBO Cover

A protective plastic cover is fitted over the mating face of COBO to preventdamage to the connection interface from the environment and access bynon-authorized persons.

Figure 21: COBO Mechanical Outline


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3.3 MANRU

The MANRU has the same function as the ANRU module.

The main functions of the MANRU are:

Receive the UEs uplink signal on two antenna ports

Downconversion of the received signal and digital baseband processing

VSWR supervision for two antenna ports (only antennas which are

connected to the RTEU can be supervised.

The main functions of the MANRU controller are:

Connect to the SUMU via the IOM Link

Configuration of the receiver and VSWR measurement

Download / update of SW and FW

Alarm supervision.

RBI

BCB

BSII

LNA

LNA

RI

VSWRmeasurement

MANRUcontroller

TX inputfrom MTEU

MANRU

Analog receiversanddigital baseband

processing

Duplexer

Antenna A

Antenna B

Figure 22: MANRU Architecture

It has the interfaces:

BSII bus is used for the IOM Link to SUMU

BCB bus is used to read/write remote inventory data

RBI is the receive baseband interface

TX input

Antenna ports.



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The general performance characteristics of the MANRU are listed in thefollowing table.

Item Parameter

Transmission band 2110 - 2170 MHz

Reception band 1920 - 1980 MHz

Power for each transmission channel input 22 W maximumaverage

Return loss at reception port > 16 dB

RX sensitivity at antenna connector: -124 dBm

Return loss at transmission port > 18 dB

Return loss at antenna port > 18 dB

Isolation between reception port and antenna port >30 dB

Isolation between transmission ports (A to B/1 to 2) >46 dB

Table 11: MANRU Performance Characteristics


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3.4 MTROC

The MTROC board is located in the RRH and supports the remote radiointerface (RRI) to the CP and/or chained RRHs. Up to two SFPs can beequipped for chaining or redundancy purposes.

The MTROC board has its own remote inventory and appears in the RITtable at the MIB interface.

SUMU controls the MTROC boards via BCB and IOM links. But, in contrastto modules located in the CP, the BCB and IOM links are routed to MTROCover a TCP/IP connection.

MTROCs internal FPGA and Ethernet switch are configured for the RBIand BTI links.

MTROC supports the BCB bus and the IOM connection over LAPD/BSII toRTEU and MANR.

The MTROC board supports the standard OAM scenarios like softwarereplacement, configuration and alarm reporting.

The MTROC supports the:

RRI links

RBI/BTI links

BCB and BSII bus.

From SUMU point of view, MTROC acts as an BCB proxy:

MTROC does not access the BCB bus autonomously

All access to the BCB bus is requested by SUMU using IOM Messages

MTROC processes the requested action on the BCB bus and reports the

result to SUMU using IOM Messages.



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RBI

BCB

BSII

RRIP1

fiber or copper

RRM

RRM

RI BCB Pilot

MTROCcontroller

BTIRRIP2

RRIS1

RRIS2

XRT

MMI

MTROC

Transport and

Ethernet switching

Figure 23: MTROC Architecture

The main functions of the MTROC controller are:

Connect to the SUMU via the IOM Link using IOMR over RRI

Supervision and Configuration of the SFPs, including FW update

Reading the Ethernet switch routing tables to retrieve the MAC addresses

and by this the RRI topology.

Interface to the external antenna tilt control unit

Interface to the maintenance terminal

Control of the BCB bus using the BCB pilot, acting as a BCB proxy

Control of the BSII bus to support the MANRU and RTEU IOM links to SUMU

Act as an IOM link router between SUMU and MANRU/RTEU.


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3.5 Power Supply

As opposed to the CP, the RRH is supplied by an AC/DC converter and doesnot contain a 48 V power distribution. Voltages between 3.3 V and 28 V arederived directly by the 230 VAC and are distributed from the central AC/DCpower supply to the different units via cables.

3.5.1 AC/DC Conversion

The power supply converts a three-wire AC voltage into four DC output voltages.

The input values are:

Input voltage range (AC): 160 V ... 270 V

Nominal voltage (AC): 230 V/240 V

Frequency (Hz): 47 ... 63 Hz.

The power supply is fed by a three-wire system:

L = Phase (Line)

N = Neutral

PE = Protective earth.

AC power supply supervision has the following features:

AC input voltage DC output voltage

160 V 270 V ON

> 280 V OFF

0 V 150 V OFF

Table 12: AC Input Voltage Supervision

The RRH power supply provides the following voltages at the output connectors:

+ 28 V

+ 12 V

+ 9 V+ 5.1 V

+ 3.3 V.

3.5.2 DC Input Voltage

In the case of mains failure the power supply also works with DC voltage at theinput. The input voltage range (DC) is 270 V ... 358 V.



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3.5.3 External AC Fuses

Both AC input lines are protected by two 2.5 A fuses, which are located onACCO in the COBO.

Both AC output lines to the top fan unit are protected by two 1.25 A fuses, whichare located on ACCO in the COBO.

3.5.4 Local Power Supply (DC/DC)

Due to very low input voltage requirements (3.3 V > U > 1.2 V), on each digitalboard additional DC/DC converters or LDOs are used locally to generatelow voltages very close to the load.

3.5.5 Battery Backup

Battery backup is not implemented. Support from the external site supportcabinet SSC is provided.

3.5.6 Warm up of the RRH

If the input voltage of the RRH is connected while the temperature sensor insidethe RRH power supply is below 0 C, the +28 V are warming up the RRH.

In the temperature range -33 C to 0 C:

the power supply switches on

+3.3 V, +5.1 V, +9 V and +12 V are switched off

112 W output power on +28 V to warm up the RRH power supply and

the digital boards.


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3.6 RTEU

The RTEU has the same function as the TEU module.

The main functions of the RTEU are:

Clipping of the baseband signal

Multi carrier synthesis to support several RF carrier on a single power

amplifier

Digital predistortion

Upconversion and amplification of the transmit signal.

The main functions of RTEU controller are:

Connect to the SUMU via the IOM Link

Configuration of the transmitter

Download / update of SW and FW

Alarm supervision.

BTI

BCB

BSII

Digitalpredistortion

RI

RTEU

controller

RTEU

Multicarriersysthesis

UpconverterTX outputto MANRU

Poweramplifier

Downconverter

Figure 24: RTEU Architecture

It has the interfaces:

BSII bus is used for the IOM Link to SUMU

BCB bus is used to read/write remote inventory data

BTI is the baseband transmit interface

TX output.



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The general performance characteristics of the RTEU are listed in the followingtable.

Item Specification

Transmission frequency band 2110 - 2170 MHz

Number of carriers 1 - 3

Carrier alignment, range 2110 - 2170 MHz

Carrier alignment, interval 200 kHz

Maximum average transmission output 42 dBm +/- 1 dB (16 W)

Occupation bandwidth 5 MHz or less

Nominal output impedance 50

Output terminal return loss


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3.7 Optical Interconnection between CP and RRH

3.7.1 Overview

In the standard Node B architecture there arelow speed and clock interfaces

between SUMU and ANRUs/TEUs (OAM interface BSII, 1.92 MHz CLKI2distribution, remote inventory BCB).

Between the baseband board pool and the ANRUs/TEUMs there are highspeed interfacescalled RBI from ANRU and BTI to TEU.

Extending the Node B architecture for the use of remote radio equipment theRRI and its TROC and MTROC modules are introduced. The TROC holdsup to six optical interface modules, each terminating one RRI. The MTROCholds two optical interface modules. All Node B internal signals (CLKI2, BCB,BSII, RBI and BTI) are muxed onto the RRI links.

3.7.2 Optical Fiber Architecture

The optical fiber end-to-end part contains the following elements:

Optical fiber cable itself and its accessories (patch cords, fiber splicing,

etc.)

Integrated optical fiber distribution: Interface with optical multi-fiber cable

at central part side. The role of the integrated optical fiber distribution is to

distribute fibers between TROC SFP modules and optical multi-fiber cable.

Outdoor optical fiber distribution: Interface with optical multi-fiber cable

at RRH side. The role of the outdoor optical fiber distribution is to distribute

the fibers between optical multi-fiber cable and the RRH.



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3.7.2.1 Configurations

Combination of integrated optical fiber Distribution and Outdoor optical fiberDistribution allow implementing any appropriate site configuration.

The following figures show typical roof-top and tower or mast architecturewhere Integrated optical fiber Distribution (IOFD) and Outdoor optical fiber

Distribution (OOFD) are implemented. This architecture is applicable to bothindoor and outdoor CP.

RP

Central part

SFP

SFP

SFP

TROC

Integratedoptical

fiberdistribution

SFP

MTROC

RP

SFP

MTROC

RP

SFP

MTROC

Outdoor fibers(2 of 6 fibers used)

Patch cord fibers(2 fibers)

Figure 25: Optical Two-Fiber Configuration

RP

Outdoor opticalmulti fiber(6 fibers)

Central part

SFP

SFP

SFP

TROC

Integratedoptical

fiberdistribution

Outdooroptical

fiberdistribution

SFP

MTROC

RP

SFP

MTROC

RP

SFP

MTROC



Figure 26: Optical Six-Fiber Configuration


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RP

Outdoor opticalmulti fiber(6 fibers)

Central part

SFP

SFP

SFP

TROC

Optical

fiberdistribution

Outdoorop

tical

fiberdistrib

ution

SFP

MTROC

RP

SFP

MTROC

RP

SFP

MTROC



Splice

Box

Fiber ring

Figure 27: Optical Fiber (Metro) Ring Configuration

Central part

SFP

SFP

SFP

TROC

RP

SFP

MTROCPatch cord fibers(2 fibers)

Patch cordfibers (2 fibers)

ODF

Fiber line

Integratedoptical

fiberdistribution

ODF


Figure 28: Optical Fiber (Railway) Line Configuration



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3.7.2.2 Integrated Optical Fiber Distribution

The integrated optical fiber distribution (IOFD) allow distribution and conjunctionof the main optical multi-fiber cable to front-face standard optical connectors.This module holds and protects optical fibers splicing.

Standard optical patch cords ensure optical link between TROC board SFP

connectors and integrated optical fiber distribution connectors.

The integrated optical fiber distribution is inserted within indoor or outdoor CPcabinet. The integrated optical fiber distribution is optional. In case of indoorcabinet installed within technical room equipped with ODF (Optical DistributionFrame) allowing termination of optical multi-fiber cable, simple patch cordscould be used.

Figure 29: Integrated Optical Fiber Distribution Module


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3.7.2.3 Outdoor Optical Fiber Distribution

The outdoor optical fiber distribution allows distribution and conjunction of themain optical multi-fiber cable to RRU optical fiber cable.

Standard optical patch cords ensure optical link between MTROC board SFPconnectors and outdoor optical fiber distribution connectors.

The outdoor optical fiber distribution, designed to withstand with outdoorconditions, holds and protects optical fibers splicing. This module can beplaced in the most convenient place, rooftops, base of the tower, etc.

Figure 30: Outdoor Optical Fiber Distribution Module



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3.7.3 TROC/MTROC Optical Interface Architecture

The optical interface modules are installed on TROC in the CP or on MTROC inthe RRH. The optical interface physically terminates a RRI link.

Because the functionality in those applications is different, the opticalinterface module FPGA is loaded by the host (either Node B or RRH) withthe appropriate bitstream.

to (M)TROC

Power supplyFPGA

Optical Interface

RI

Opticaltransceiver

Opticalfiber

Clock

Temperature

monitor Flash

to (M)TROC

to (M)TROC

Figure 31: TROC/MTROC Optical Interface Architecture

The clock generator is a performance critical system block. The reference clockfor the RRI is generated using a VCSO based clock multiplier.

The RI EEPROM identifies the optical interface module to the Alcatel specificOAM system. In addition a local I2C bus gives the host access to a second RIEEPROM for the optical transceiver and to a temperature monitor.


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3.7.4 SFP Laser Module

The Small Factor Plugable (SFP) are small standardized fiber optic modules.

The SFP laser modules are installed on the TROC and MTROC board tosupport the remote radio interface.

SFP transceiver is working protocol independent and supports 614.4 MBps,1.2288 GBps and 2.4576 GBps.

The SFP modules are shown as separate RIT in the RIT table.

Link Type Rate Cable/Fiber Comment

Grey Laser 2.4576 GBps Single ModeFiber

CWDM Laser 2.4576 GBps Single ModeFiber

Eight colors

Table 14: SFP Types

Figure 32: SFP Module



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4 Site Support Cabinet


This section describes the Site Support Cabinet.

The SSC is an optional cabinet which is used to provide battery backup forthe RRH.

The SSC is supplied by the mains (230 VAC).


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4.1 Battery

The battery consists of six battery units. The nominal voltage of each unit is 48V. The six units are charged in parallel. If a mains power failure occurs thesix battery units are connected in series to provide the needed voltage tothe connected RRH within 50 ms.

The batteries are charged in compliance with DIN 41773 (IU characteristic).The charging voltage is temperature controlled. A temperature sensor is placedinside the battery box. Battery features are listed below:

Number of cells 6 x 24 cells

Nominal voltage per unit 48 V

Nominal voltage complete battery 288 V

Max. voltage per unit 59.6 V at -33 C57.2 V at 0 C

55.4 V at +25

C

Min. voltage complete battery 237 V

Table 15: SSC Battery Characteristics



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4.2 Battery Backup

In the case of mains power failure the SSC feeds the connected RRH forup to 250 minutes.

The RRH connected to the SSC has a hold-up time of at least 50 ms. That

means, in the case of mains failure the battery must provide energy within50 ms to the connected equipment.

If the mains failure lasts longer than the backup time, the battery is:

Disconnected from the RRH to avoid deep discharge

Not connected to the RRH again before the mains appears.

4.3 Heating

A heater is part of the SSC. It heats the air inside the SSC if the internal airis below +10 C. The heating works in the temperature range from -33 C to

+10

C. If the ambient temperature is below -33

C the Side Support Cabinetheats up within 30 minutes to 0 C.

4.4 Cooling

The SSC is equipped with an active wall cooling system. An inner fan runningwith a constant speed forces the air through the equipment into the spacebetween the rack and the housing. An outer fan running with a variable speeddepending on the temperature of the air inside the SSC forces the air alongthe housing walls back to the inside of the rack.

4.5 Input VoltageThe following table shows the input voltage range for the AC/DC converter ofthe SSC.

Input voltage range (AC) 170 V ... 270 V

Nominal voltage (AC) 230/240 V

Frequency (Hz) 47 Hz ... 63 Hz

Table 16: SSC Input Voltage


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4.6 Alarms

The SSC provides three different alarms:

Mains failure

Deep discharge alarm

Combined Alarm:

Door contact

Power supplies (NT, MW)

Battery charger

Inner fan alarm

Outer fan alarm

Temperature alarm

Battery backup "OFF" Alarm.

4.7 Thermal Protection

Each power supply used in the SSC has its own temperature protection. Theswitch-off temperature is +70 C (ambient temperature).

A temperature monitoring is also placed in the SSC. If the temperature risesabove +60 C the SSC provides a temperature alarm.

4.8 Battery Protection

The battery is protected against deep discharge. If the voltage of the completebattery falls below 240 V (nominal value, in case of mains failure) the battery isdisconnected from the equipment.

4.9 SSC - RRH Distance

The maximum cable length between the SSC and the RRH is 50 m.

4.10 Dimensions and Weight

The following table shows the overall dimensions and weight of the SSCand its components.

Component Height Width Depth Weight

SSC (withbattery)

904 mm 652 mm 459 mm 89 kg

Battery - - - 32 kg

Free Spacefor customerequipment

3U/128 mm 19"/ 482.6 mm 325 mm -

Table 17: SSC Dimensions and Weight



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4.11 Mechanical Assembly

The mechanical appearance of the complete SSC is shown in the followingfigure.

Onsite the SSC must be mounted to a socket. The SSC can be mounted in

one of three ways.Base (standard) socket, to mount SSC to the bottom

Wall holder, to mount SSC to the wall

Wall holder, to mount SSC to a mast (pole).

Figure 33: SSC Front View


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5 CP Configuration and Hardware Modules


This section describes the CP configuration and its RRU specific hardwaremodules.


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5.1 Overview

The CP is based on the MBS structure. The indoor CP uses a MBI cabinet, theoutdoor CP a MBOevolution cabinet. There are no transceivers and antennanetworks in the central part.

The number of BB boards to be installed in the cabinet depends on the trafficmodel foreseen for the Node B on a given site.

The SUMU will be always located in STBSR, at left position, the TROC atsecond left position.

5.2 Power Supply

The CP is driven by AC or 48V DC. Refer to the Evolium A9100 MBS HardwareDescription for detailed power supply descriptions.

5.3 CP Rack Layout

5.3.1 MBI3 Rack Layout

The following figure shows the AC or DC MBI3 rack layout for RRU:

FANUFANU

Modules presentin AC configuration only

Number of BB boardsdepends on the Traffic Model

1 2 3 4 5 6 7

S

U

M

U

T

R

O

C

BB Boards

Air Inlet

FANUFANU

STAND

Empty space

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8 ADAM

P

M1

2

P

M1

2

Connection Area

Air Inlet

1 2 3

1 2 3

FANU

FANU FANU FANU

FANU

I

OF

D

Figure 34: CP MBI3 Rack Layout



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5.3.2 MBO1E Rack Layout

The following figure shows the AC or DC MBO1E rack layout for RRU:

FANU

Modules presentin AC configuration only

Number of BB boardsdepends on the Traffic Model

1 2 3 4 5 6 7

SU

M

U

T

R

O

C

BB Boards

Air Inlet

FANUFANU

STAND

Empty space

Air Inlet

1 2 3

1 2 3

FANU

FANU FANU FANU

FANU

I

OF

D

FANU1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6

FANU

Air Inlet

FANUFANU

AC Power Supply

Figure 35: CP MBO1E Rack Layout


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5.4 TROC

5.4.1 Architecture

The TROC module is located in the CP cabinet MBI3 or MBO1E. It interfaces

the high speed backplane and the BWB backplane. TROC hereby replaces theTRAB board.

In contrast to the TRAB board, the TROC board is an active board. I.e. itruns software and is configured. Especially, the internal FPGA and Ethernetswitches are configured for the RBI and BTI links.

The TROC board supports the standard OAM scenarios like softwarereplacement, configuration and alarm reporting. TROC supports the BCB busand IOM interface over LAPD/BSII in the CP.

The main function of the TROC module is to connect the BB Boards with RRHsand local TEU/ANRU modules inside the Node B cabinet:

BTI1..3 and RBI1..3 are used to connect the TEU and ANRU modules inside

the Node B cabinet to the BB Boards.

Up to six SFP can be equipped to connect RRH via optical fiber links.

(named RRH1 to RRH6).

The TROC module can connect with up to three local sectors (TEU and

ANRU) equipped in the CP.

The TROC provides one interface to NEM (MMI).

The SUM connector is used to connect the ethernet frontpanel cable

between SUMU MMI and the switching unit of the TROC. The cable is used

to provide the O&M connection from the SUMU to NEM and the internalO&M connection (IOMR) to the RRH. On this interface the internal interfaces

BCB and BSII are multiplexed to be transported on ethernet.

All RI EEPROMs are controlled using the BCB bus inside the cabinet.

The BSII bus inside the cabinet supports the IOM link between SUMU and

TROC controller.



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Transport andSwitching

RBI

BTI

BCB bus

BSII bus

RI

TROC Controller

BTI1...3

RBI1...3

MMI

SUM

RRM #1

RRM #n

RRM #6

RP1

RPn

RP6

optical fiber

TROC

ETHto SUMU

ETHto LMT (NEMB)

Figure 36: TROC Architecture

The main functions of the TROC controller are:

Documents

Evolium A9115 Remote RF Unit Hardware Description 211380000e03