01- General Overview & Features

Copyright - Refer to Title Page document.docFOR TRAINING PURPOSES ONLY Page 1


CONCEPTUAL APPLICATIONS

The versions of the OMS1664 family are designed to be readily configured to provide the following Synchronous Digital Hierarchy functional element applications :–

Add–drop multiplexer. Terminal multiplexer. Fibre hub. Cross–connect.

The figure above illustrates the applications. They can be created from any of the OMS1664 family versions by choosing the appropriate configuration of plug–in card units. The version and configuration will reflect the level of traffic to be handled, what electrical or optical paths are to be serviced and the position of the element in the network hierarchy.


Functional Building Blocks

SwitchThe Switch card provides the traffic connectivity between the line or tributary card traffic interfaces. It provides switching of the SDH signals down to VC-12 granularity.

Line InterfaceThe line interface provides connectivity to the ‘Line’. The ‘Line’ connections are those connections considered to be the main traffic paths and usually carry the largest STM-n SDH signals. In the case of the OMS1664 family the Tributary connections may also be able to carry SDH signals of the same size.

Tributary Card


COMMS CARD

MUX CONTROLLER

SWITCH LINE INTERFACE

TRIBUTARY CARD

L TU

TRIBUTARY CARD

FRONT PLUG UP

TRIBUTARY CARD

L TU

L TU

L TU

LINE INTERFACE

L TU

Auxiliary Card

Power Supply

In practice several functional blocks may be included into one physical card.

The tributary card provides connection for signals that are to be added / dropped at this network node, or perhaps fed to a sub network. The portfolio of Tributary card types provides interfaces for a variety of traffic types, these may include STM-n signals up to and including the line rate, as well as lower rate PDH signals and Data Cards. The Data cards currently include Ethernet, Fast Ethernet, Gigabit Ethernet and in future releases ESCON, FICON, Fibre Channel, DVB-ASI.In some cases the physical interface will be located on the Tributary card itself, these are refered to as ‘Front Plug Up’ cards, in other cases the Tributary card will work in conjunction with a ‘Line Termination Unit’ (LTU) described below.

Line Termination Unit (LTU)Line termination units provide the physical interface for signals to and from Tributary cards. For Tributary cards implementing large numbers of traffic ports there may be several LTU’s associated with the one Tributary card.

For the OMS1664 family references for cross connections may be to the LTU itself rather than its parent Tributary card.

Power SupplyThe power supply provides DC to DC voltage conversion to provide the lower voltages for multiplexer cards form the –48Volt to –60Volt supply provided at network node sites. In some cases the power supply may be a built in function of the multiplxer cards themselves.

The connection to the battery can be protected. During an external power break down of less than 16ms the integrated buffer capacity will ensure an error free operation.

Mux ControllerThe Multiplexer (mux) Controller has computational processing capability and is responsible for implementing configuration changes, monitoring and recording multiplexer equipment or traffic performance and alarms. A sub system of the Mux Controller the ‘System Memory Cards’ (SMC) provide data storage for operational system software and configuration data software.

Communications CardThe Communication (Comms) card is responsible for handling management communications to and from remote management systems that are carried within the STM-n signals handled by the mux.It also implements the Qx interface if the mux is to be a ‘Gateway’ element and be connected to the remote management via Ethernet LAN technologies.

Auxilliary CardThe Auxilliary card provides connectivity for a number of data channels that are to be carried within the STM-n signal using section overhead bytes allocated for that purpose. The data channels can be used for a number of purposes including carrying status information back to the remote manager for non SDH elements or devices connected to the OMS multiplexer.


Installing the appropriate physical interface unit will accommodate digital port interfaces for customized auxiliary data channel transport via 64kBit/s channels according to ITU-T G.703 or V.11 standard.

Access to all interfaces is given by the Auxiliary LTU. A handset for Engineering Order Wire functionality and a Four-Wire Interface has been provided.

Management and Synchronization LTU

A common LTU for Synchronization as well as TMN/NMS and LCT access is provided.

Synchronization Interface

The Management and Synchronization LTU supports the connectors for:

• Two T3 clock inputs according to G.703/G.704• Two T4 clock outputs according to G.703/G.704


OMS1664 Product Family Overview

There are six products in the OMS1664 family, these are referred to in this manual as follows :-

OMS1634 OMS1644 OMS1654 OMS1664 OMS1674 OMS1684

The OMS1634, OMS1664, OM1684 are standard shelf based products.

The OMS 1644, OMS1654, OMS1674 are compact shelf based products.

Key Items to Distinguish Different Parts of the Family

1684 1674 1664 1654 1644 1634

Standard Shelf X X X

Compact Shelf X X X

Switch 64 x STM-1 X X



STM-64 Capability X X


Upgrade Possible

Upgrade Possible

Remote Network Management

The OMS 1664 Family can be remotely managed by the Marconi Management decribed below. Connection(s) can be made via LAN/WAN technologies to one or more OMS16xx elements which are implementing a Qx TMN interface (Fast Ethernet) interface.

Service on Optical MV38 / MV36 either Core 1 or Core 2

Service on Access Release 6.2 together with Device Driver 1.x

Local Operator ManagementThe OMS1664 family can also be locally managed using terminal software, known as ‘Local Craft Terminal’ (LCT).

The Local Craft Terminal software can be run on an IBM compatible PC or Laptop using several of the Windows platforms.(Windows is © of the Microsoft Corporation)

Connection to the Element is via an ‘F’ interface (RS232) and suitable lead to the serial port of the PC.

Local Craft TerminalThree levels of operation access are catered for: - Casual operator (read access with some limited local write access), with

restricted access to mainly display Alarm and configuration status details.

System operator (read-write access), with full access to the OMS1664/OMS 1654 database in the absence of a network management system.

Admin Operator (Highest Class) with the additional ability to add and delete users and change user passwords.

For the exercises, the user name is ADMIN

The default Password is SDHMUXES

Both User Name and password are case sensitive and need to be UPPERCASE

If you are prompted to enter a new password, due to expiry of the existing password, please alternate between SDHMUXES (default) and SDHMUXES1.



Practical Implementation of Inter-Management System Comms


B/R

B/R

B/R

MV38X-T

Inter-Site WAN Links(normallyleased lines)

Central Management Site

Regional Site B

EM-OS X-T

MV36 X-T

SDH Element

SDH Element

SDH Element

SDH Element

SDH Element

SDH Element

SDH Element

SDH Element

SDH Element

Overview of the Compact Shelf Versions (OMS1644, OMS1654, OMS1674)

The Compact Shelf

The compact shelf together with a Cable Management unit and Fan Tray can be fitted in the Standard 19 inche or ETSI racks.


OMS1644 Unprotected Core


These slot positions unused

Core Card Combines Line and

Switch Functionality

Combined Mux Controller and Comms Card (CCU)

Management and Synch

LTU

Power LTU

OMS1644 Protected Core


Core Card Protected 1+1



LTU

Power LTU’s

Protected 1+1

These slot positions unused

OMS1644 Switch Capacity (Release1.3)

For each slot:The 64 x STM-1 switch allows allocation of a bandwidth in a range of 1 x VC-4 up to 8 x VC-4 depending on the type of card


TDM plane 48 x STM-1 @ VC-12

32

L3L4T1T2T3T4

32

48

48

n.a.

n.a.

8

8

8

8

8

8

ST

M

1

6/4

Lin

e

Lin

e ST

M

1

6/4

OMS1644 Switch Capacity (Future Release)

= 40 Gigabit Data Switch Unit

The Data Plane supports an additional 2.5G data path from each traffic slot to the 40G data switch unit.


TDM plane 48 x STM-1 @ VC-12 3

2

L3

L4

T1

T2

T3

T4

32

48

48

Data plane 6 x 2.5 G

n.a.

n.a.

8 8

8

8

8

8

15

G

15

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

16

/4L

ine

Lin

e1

6/4

SW SW

SW

UnProtected Core OMS1654, OMS1674



Switch Card Unprotected

Power LTU Unprotected


LTU

Protected Core OMS1654, OMS1674



Switch Card Protected 1+1

Power LTU Protected 1+1


LTU

OMS1654 Switch Capacity

For each slot:The 128 x STM-1 switch allows allocation of bandwidth in a range of 1 x VC-4 up to 16 x VC-4 depends on type of card

OMS1674 Switch Capacity (Release 2)

The 384 x STM-1 @ VC-12 switch supports up to STM-32 path to each slot



L1

TDM plane 128 x STM-1

12

8

L2L3L4T1T2T3T4

12

8

12

8

12

8

16

16

16

16

16

16

16

16

STM-64 STM-64

L1


384

L2

L3

L4

T1

T2

T3

T4

384

256

256

32 32

32

32

32 32

32

32

Overview of the Standard Shelf Versions(OMS1634, OMS1664, OMS1684)

The Standard Shelf

The Standard Shelf together with a Cable Management unit and Fan Tray can be fitted in the Standard 19 inch or ETSI racks.


89mm

450mm

96

6m

m

191mm

450mm

11

1m

m

191mm

C able M anagem ent

Fan T ray

C ard A rea

LT U Area

F ibre M anagem ent

Fan T ray F ilter

966

mm

OMS1634 Core

The OMS1634 provides a low entry cost mux for nodes with smaller traffic add drop requirement.


Switches Protected

1+1

Protected Power LTU’s

Mux Controller

and Comms card.

These slots Unused


LTU

OMS1634 Switch Capacity (Rel. 1.3)

For each slot:The 64 x STM-1 switch allows allocation of bandwidth in a range of 1 x VC-4 up to 8 x VC-4 depends on the type of card

OMS1634 Switch Capacity (Future Release)

The Data Plane supports an additional 2.5G data path from each traffic slot to the 40G data switch unit


EQP 1:1

n.a.

32

T1

T2T3T10T11T12

32

n.a.

n.a.

T5n.a.n.a.

T8n.a.n.a.n.a.


48

48 8 8 8 8 4 4 4 4

16/4

Lin

e

16/4

Lin

e

T8T5



32

32

48

48

35 G

35 G

2.5

G

8 8 4 8 8 4 4 4

na

na

T1

T2T3nananana

T10T11T12nana

16/4

Lin

e

SW SW

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

16/4

Lin

e

Unprotected Core OMS1664, OMS1684


Unprotected Switch Card

Unprotected Power LTU

Mux Controller

and Comms Card (CCU)


LTU

Protected Core OMS1664, OMS1684


Switch Card Protected

1+1

Power LTU Protected

1+1

Mux Controller

and Comms Card (CCU)


LTU

OMS1664 Switch Capacity


OMS1684 Switch Capacity (R2.0)

The 384 x STM-1 @ VC-12 switch supports a STM-16 path to each slot and a STM-32 path to several slots


L1


12

8

L2

T1

T2T3T4T5T6T7T8T9T10T11T12L3L4

25

6

16

12

82

56

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

STM-64 STM-64 STM-64STM-64


384

384

384

384 32

32

3

2

3

2

3

2

3

2

3

2

3

2

16

16

16

16

16

16

16

1

6

L1

L2

T1

T2T3T4T5T6T7T8T9T10T11T12L3L4

OMS1684 Switch Capacity (R3.0)

The Data Plane supports an additional 2.5G data path from each traffic slot to the 40G data switch unit


T8T5



384

384

384

38432

32

32

32

32

32 32

32

16 16

16

16

16

16

16

16

2.5

G

35

G

35

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

2.5

G

L1

L2

T1

T2T3T4T6T7T9T10T11T12L3L4

SW SW

Traffic Cards

2M Traffic Cards and LTUs

2M Expandable 2M Un-expandable

Card support 126 x 2M Card support 32 x 2M

LTU supports 32 x 2 Mb/s unbalanced / balanced

LTU supports 32 x 2 Mb/s unbalanced / balanced

1 - 4 LTUs can be added 1 LTU can be used

34/45M Card / LTU

Available as:

Card supporting 6 Port LTU

Possible Traffic Combinations:

6 x 34M or 6 x 45Mor 3 x 34M + 3 x 45M available on same card


Modular STM-1 Card / LTU

Card supports:2 sub modules and 1 LTU which also has 2 sub modules, this can give max 8 ports.Card Sub Modules and LTU Sub modules optionally fitted in any combination.

Card Sub Modules:Hot Pluggable 2 front plug up ports STM-1 electrical per moduleor2 front plug up ports Optical S1.1, L1.1, L1.2 per module

LTU Sub Modules:2 ports STM-1 Electrical (1.0/2.3 Connectors)or 2 ports STM-1 Optical (LC Simplex connectors)

Card and LTU Protection:Protection Card and Protection LTU available


16 Port Version STM-1/4 MultiRate Card / LTU Card:

Supports STM-1 and STM-4.

All ports are SFP based.

STM-1 electric, S1.1, L1.1, L1.2, S4.1, L4.1, L4.2

Up to 16 x STM-1 or 4 x STM-4 or any combination of them

There are some rules to use the SFP slots, depending on the bandwidth equipped for specific ports, refer to the following diagrams.

Port Equipping Rules

X Indicates ports where an STM-1 cannot be used, when STM-4 fitted at port indicated by a tick


16 Port Version STM-1/4 MultiRate Card / LTU continued

Port Configuration Examples


16 Port Version STM-1/4 MultiRate Card / LTU Protection

Protection Card Port Equipping

Shown are the worker card configurations, referenced in the previous tables.


8 Port Version STM-1/4 MultiRate Card / LTU (Release 2.0)

Card:

Supports STM-1 and STM-4. All ports are SFP based.STM-1 electric, S1.1, L1.1, L1.2, S4.1, L4.1, L4.2Up to 8 x STM-1 or 2 x STM-4 or any combination of them

There are some rules to use the SFP slots, depending on the bandwidth equipped for specific ports, refer to the following diagrams.

Port Configuration Examples

Protection Card Port EquippingShown is the worker card configuration; the reference as used in the table above.


STM-4 and STM-16 Cards

STM-4 Card

Front Plug Up no LTU required

2 Ports using SFP Modules

Application Codes S4.1, L4.1, L4.2

STM-16 Card (Rel 1.2)

Front Plug Up no LTU required.

1 Fixed Port using (LC Connectors).

Application Codes S16.1, L16.1, L16.2, L16.3, L16.2JE.

STM-16 Card (Rel 2.0)

Front Plug Up no LTU required.

1 Port using SFP Module (LC Connectors).

Application Codes S16.1, L16.1, L16.2, L16.3, L16.2JE.

STM-64 Card (Rel. 2.0)

Modular XFP Card double slot width

I Port (XFP)

Application Codes I64.2, S64.2, L64.2,


OMS1664: General LTU Asignment


Traffic LTU area Local/User Alarms, AuxLCT, LAN, Sync

Power supply B

Power supply A

L I NE

1LIN

E 2

T R I B

1

TR

I B 2 ( 2M

#1)

T R I B 3 ( 2 M # 2)

TR

I B 4SW

IT

CH

AT R I B 7 S

W B

E X P N )TR

I B 8TR

I B 9T R I B 10 ( 2 M # 3)T R I B

12 ( 2 M P R O TLIN

E

3L I NE

4AU

XI L I A

RY

C C U A

F O R F U T U R E U S E

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

T R I B 6 S

W

A E X P N )SW

ITC

H

BT R I B 11 ( 2 M # 4)

TR

I B 5

19

20

34/45 Mbit/s Tributary LTU unbalanced: 34/45 Mbit/s ports

Electrical specifications:

- 6 x 34/45 Mbit/s

- 75 Ohms unbal., G.703

- Protocol: HDB3


IN

OUT

Monitor

Port 1

IN

OUT

Monitor

Port 2

IN

OUT

Monitor

Port 3

IN

OUT

Monitor

Port 4

IN

OUT

Monitor

Port 5

IN

OUT

Monitor

Port 6

OMS1664: 504 x 2MB LTU Asignment

LTU groups

Card slot 1_24: (Tributary 2)LTU slot 1, 2, 3, 4





Traffic LTU Local/User Alarms, Aux

Power supply B

Power supply A

T r i b 2 2 M #

1T r i b 3 2 M # 2 T r i b 10

2 M #

3

LCT, LAN, Sync

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

T r i b 11

2 M #

4T r i b 12

2 M

P R

2 Mbit/s Tributary LTU unbalanced: 2 Mbit/s ports For LTU’s associated with Expandable 2Mbits/s (Tribs 1-25 and 1-35)


Electrical specifications:- 32 x 2 Mbit/s75 Ohms unbalanced, G.703- Protocol: HDB3

1

32

input outputut

These LTU’s only have 31 traffic ports. The 32nd ports can be connected to the Test Bus and used to monitthe traffic of any of the other ports one at a time.

10

11

22

23

2 Mbit/s Tributary LTU unbalanced: 2 Mbit/s ports For LTU’s associated with Expandale 2Mbits/s (Tribs 1-24 and 1-34)


These LTU’s only have 31 traffic ports. The 32nd ports can be connected to the Test Bus and used to monitthe traffic of any of the other ports one at a time.

Electrical specifications:- 32 x 2 Mbit/s75 Ohms unbalanced, G.703- Protocol: HDB3

1

32

input outputut

10

11

22

23

For Other LTU and connection details please see Appendix A Section 9

Summary of Traffic Interfaces

Compact Shelf Versions

OMS1674 OMS1654 OMS1644

SDH Line Interfaces STM-n

n = 1,4,16,64 n = 1,4,8,16

n = 1,4 (Line Slots)

n = 4,16 (Core Card)

SDH Tributary Interfaces STM-n

n = 1,4,16,64 n = 1,4,16 n = 1,4

PDH Tributary Interfaces

2 Mbit/s

34 Mbit/s45 Mbit/s

2 Mbit/s

34 Mbit/s

45 Mbit/s

2 Mbit/s

34 Mbit/s

45 Mbit/s

Data Tributary Cards

Fast Ethernet. Gigabit Ethernet.

Layer 2 Aggregation. Multi Protocol.





Standard Shelf Versions

OMS1684 OMS1664 OMS1634

SDH Line Interfaces STM-n

n = 1,4,16,64 n = 1,4,16

n = 1,4 (Line Slots)

n = 4,16 (Core Card)

SDH Tributary Interfaces STM-n

n = 1,4,16,64 n = 1,4,16 n = 1,4

PDH Tributary Interfaces

2 Mbit/s

34 Mbit/s45 Mbit/s

2 Mbit/s

34 Mbit/s

45 Mbit/s

2 Mbit/s

34 Mbit/s

45 Mbit/s

Data Tributary Cards








AUX / EOW (Rel. 1.3)

AUX Features

Data Channels: Support of 4 x V.11 and 4 x G.703 interfacesCarrying in SOH E1 / E2 and F1 byte

EOW Features

Hand Set supports selective calling, multiple calling conferenceby MF signalling

4-Wire interface for interconnection of EOW on different networks without E&M signalling

Protection If SDH protection switching takes place, the EOW / AUX cannel will follow the working line

Summary PDH Cards and LTUs

Type Rel. No. of ports Connector Protection

2M Card 1.1 126 n.a Card Pr.

2M LTU bal 1.1 32 D-SUB Card Pr.

2M LTU unbal 1.1 32 1.0/2.3 coax Card Pr.

34/45M Card 1.2 6 n.a. Card Pr.

34/45 LTU

unbal

1.2 6 1.0/2.3 coax Card Pr.


Summary SDH Cards and LTUs

STMx Rel. No. of ports SFP Protection

STM-1 Card 1.1 4 No 1:N MSP

STM-1 LTU 1.1 4 No Card Pr.

STM-1/4 Card 1.3 8/4 * Yes 1:N MSP

STM-1/4 LTU 1.3 8/0 * Yes Card Pr.

STM-4 1.1 2 Yes 1:N MSP

STM-16 1.1 1 No 1:N MSP



STM-4 Core 2.0 1 Yes 1:N MSP STM-16 Core 1.3 1 Yes 1:N MSP

* 8/4 = 8 Ports up to 4 of which can be STM-4* 8/0 = 8 Ports none of which can be STM-4


Summary Data Cards and LTUs

Type Rel. No. of ports SFP

FastE

10/100M Card 1.2 --- ---

10/100M LTUe 1.2 16 No RJ45

10/100M LTUo 1.2 16 Yes

GigE 1.2 2 Yes

Layer 2

Layer2 Card 2.0 2 x GigE Yes

10/100M LTUe 2.0 16 No RJ45

10/100M LTUo 2.0 16 Yes

Multiprotocol

Card

2.1 8 GigE

2 SAN

Yes


System Memory Cards

Caution !!


The Comms/Controller Card must not be removed from the sub–rack when its amber LED is flashing (i.e. when it is performing a write sequence), this can cause EEPROM corruption, necessitating software reload.

Flash Cards

Software for all the various card types are stored on the CCU in Flash memory (NVMs) within 2 logical banks.

The Flash cards are the core brain of the shelf containing all configuration and connectivity details.

This Flash card has two Banks, which are software partitioned to hold software.

Dual System Memory Banks offer an operator the following facilities: -

a) The ability to maintain two working copies of the software required for any card fitted in the shelf.

b) Enables software upgrades to be made to cards without firmware changes and without any loss of traffic.


The Active Status of the partitions in the Flash Memory Cards Banks can be: -

Empty Bank or Banks do not contain any structured software

Inhibit Bank or Banks contain structured software, but this software has no priority status

Current Bank contains structured software and has been given the priority status of currently in use

Non Current Bank contains structured software and has been given the priority status of not currently in use

It is important that at any time an operating authority knows: -

(a) The version of system software held in the System Memory cards for every card type.

(b) The active status of the partitions in the Banks containing the system software.

The only cards that do not need system software to enable them to function correctly are: -

Engineers Order Wire (EOW) Auxiliary Card Power Supply Unit (PSU)


Cross ConnectionsThe Switch can implement cross-connections at VC4, VC3, VC2, VC12 granularity.A number of crossconnections can also be concatenated together, either contiguously or virtually.

An operator can create cross connections routed through the switch card between any two ports whether these are on the LTU or on the front of a card.Some examples are shown above.

It is also possible to cross-connect a port to itself, effectively creating a loopback condition.

Note this should not be confused with inbuilt loopback facilities.

Note: - for Releases prior to Release 2.0, a port has to be effectively enabled by assigning switch capacity to the port.

If this is not done it will not be possible to create cross connections to that port.


FRONT

PLUG

UP

FRONT

PLUG

UP

TRIBUTARY

1

2 2

3

LTU

1


Documents

01- General Overview & Features