Aditya-summer Training Report delhi metro

SUMMER TRAINING REPORT

KIIT College of Engineering ,Gurgaon

SUBMITTED BY:- ADITYA KUMAR ELECTONICS AND

COMMUNICATION

5th Semester

2 Training Report-

Delhi Metro Rail Corporation Ltd

Metro Bhawan

Fire Brigade Lane,Barakhamba Road,

New Delhi-110001

Absentee Statement

ADITYA KUMAR, student of Bachelor of Technology (ELECTRONICS AND COMMUNICATION)

from KIIT College of Engineering, Gurgaon has successfully completed his summer internship

for a period of six weeks at Signal & Telecommunication, DMRC from 15th JUNE 2012 to 30th

JULY 2012.

He has attended her training regularly during this period.

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To whomsoever it may concern

ADITYA KUMAR, student of Bachelor of Technology (ELECTRONICS AND COMMUNICATION)

from KIIT College of Engineering, Gurgaon has successfully completed his summer internship

for a period of six weeks at Telecommunication, DMRC from 15th JUNE 2012 to 30th JULY

2012.

His work mainly comprised of reviewing the suggestions received in Telecommunication of

DMRC (Telecom Department), by making its summary and putting it for its respective Signal

&Telecom (S & T). He also coordinated with review unit on the Station/Depot received by

preparing their Training session along with maintenance of the sequencing according to

their composition. He has been enthusiastic and proactive in the work assigned to him and

has made an outstanding comprehensive report. He performed exceedingly well during the

internship tenure.

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ACKNOWLEDGEMENT

I express my sincere gratitude to DELHI METRO RAIL CORPORATION, to participate

and provide us with the technical knowledge in the Signal & Telecommunication Department

of Delhi Metro Rail Corporation(BRKR)

I acknowledge, my thanks Mr Madan Pal,( )for the training in this exercise which is being

done for the first time. I am thankful to Mr. Mukesh Kumar, and his staff, for their active

technical and administrative support.

I would also like to thank, Mr, Safal , Mr. Fahim khan, Mr. Ajay kumar & Mr. Tarun for

helping me to clarify technical doubts and queries, and being patient with me and my overly

inquisitive behaviour.

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ABOUT DELHI METRO RAIL CORPORATION

Planning for the metro started in 1984, when the Delhi Development

Authority and the Urban Arts Commission came up with a proposal for developing a

multi-modal transport system for the city. The Government of India and the

Government of Delhi jointly set up the Delhi Metro Rail Corporation (DMRC) in

1995.Construction started in 1998, and

The first section, on the Red Line, opened in 2002,

Followed by the Yellow Line in 2004,

The Blue Line in 2005, its branch line in 2009,

The Green and Violet Lines in 2010 and

The Delhi Airport Metro Express in 2011.

A company under the name DMRC was registered on 30.05.1995 under the

companies act for construction and operation of the metro project.The Government of

India and the Government of Delhi jointly set up a company called the Delhi Metro

Rail Corporation (DMRC) on March 5, 1995 with E. Sreedharan as the managing

director. It started functioning in November, 1997. It appointed General consultant in

August, 1998 to assist them for implementation of the project. It is having 142 stations in

the Rail corridor and 35 stations in the Metro corridor (underground). It has a combination

of elevated, at-grade and underground lines and uses both broad gauge and

standard gauge rolling stock. The Delhi Metro Rail Corporation has been certified by

the United Nations as the first metro rail and rail-based system in the world to get

Delhi Metro brought a revolutionary change in the city transport. It has also reduced

the travel time. Also the pollution level is reduced to about 50%. A large number of

commuters are having a lot of convenience in reaching their desired destination in the

required time.

Dr. E. Sreedharan handed over charge as MD, DMRC to Shri

Mangu Singh on 31 December 2011.

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Current routes As of August 27, 2011, the whole of Phase-I and Phase-II are complete, with the network

comprising six lines with 142 metro stations and a total length of 189.7 km.

Line First operational

Last Extension

Station Length (km)

Terminals Rolling stock

Red Line December 24, 2002

June 4, 2008

21 25.15 Dilshad Garden

Rithala 23 trains

Yellow Line

December 20, 2004

September 3, 2010

34 44.65 Jahangirpuri HUDA City Centre

45 trains

Blue Line December 31, 2005

October 30, 2010

44 49.93 Noida City Centre

Dwarka Sector 21

59 trains

January 7, 2010

July 14, 2011

8 8.75 Yamuna Bank

Vaishali

Green Line

April 3, 2010 15 18.46 Inderlok Mundka 15 trains August 27,

2011 2 3.32 Kirti Nagar Ashok

Park Main

Violet Line

October 3, 2010

January 14, 2011

15 20.04 Central Secretariat

Badarpur 29 trains

Airport Express

February 23, 2011

6 22.70 New Delhi Dwarka Sector 21

8 trains
http://en.wikipedia.org/wiki/Red_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dilshad_Garden_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dilshad_Garden_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Rithala_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Yellow_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Yellow_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Jahangirpuri_%28Delhi_Metro%29http://en.wikipedia.org/wiki/HUDA_City_Centre_%28Delhi_Metro%29http://en.wikipedia.org/wiki/HUDA_City_Centre_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Blue_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Noida_City_Centre_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Noida_City_Centre_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dwarka_Sector_21_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dwarka_Sector_21_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Yamuna_Bank_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Yamuna_Bank_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Vaishali_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Green_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Green_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Inderlok_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Mundka_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Kirti_Nagar_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Ashok_Park_Main_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Ashok_Park_Main_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Violet_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Violet_Line_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Central_Secretariat_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Central_Secretariat_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Badarpur_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Delhi_Airport_Metro_Expresshttp://en.wikipedia.org/wiki/Delhi_Airport_Metro_Expresshttp://en.wikipedia.org/wiki/New_Delhi_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dwarka_Sector_21_%28Delhi_Metro%29http://en.wikipedia.org/wiki/Dwarka_Sector_21_%28Delhi_Metro%29

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DELHI METRO MASTERPLAN-2021
http://en.wikipedia.org/wiki/File:Masterplan_of_Delhi_Metro.png

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TELECOMMUNICATION DEPARTMANT

It is the department of DMRC, which deals with the protection, supervision and

operation of the train. In short it the department that manages the metro traffic on the

rails. Transmission of information is possible through co-axial cables, wireless media, fibre optics. Communication at a distance by electronics transmission of impulses, as by telegraph, cable, telephone, radio, or television constitutes telecommunication.

Telecommunication department consists of following systems

Telecom system

Fiber Optics Transmission system[FOTS]

CCTV

Telephone exchange/EPABX

RADIO

PIDS/PAS AFC

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Fiber Optics Transmission system(FOTS)

It is the transmission system that uses optical fiber as communication media. Thus optical fiber communication is the method of transmitting information through optical fibers. FOTS can be termed as the backbone of DMRC telecommunication network. Fiber optics eases up the data and voice communication or access to various systems at different

stations. This network is based on fiber optical cables on both sides of the track. The number

of fibers is determined in order to comply with redundancy. The fiber is redundant for

security and protection. In case of fiber optic failure, communication can take place via spare

fiber while the fiber that is down may be fixed.

FOTS is further differently prescribed in following ways.

Synchronous Digital Hierarchy(SDH)

Synchronous Digital Hierarchy (SDH) are standardized multiplexing protocols that transfer

multiple digital bit streams over optical fiber using lasers or highly coherent light from light-

emitting diodes (LEDs). At low transmission rates data can also be transferred via an

electrical interface. The method was developed to replace the Plesiochronous Digital

Hierarchy (PDH) system for transporting large amounts of telephone calls and data traffic

over the same fiber without synchronization problems

The STM-1 (Synchronous Transport Module, level 1) frame is the basic transmission

format for SDH the first level of the synchronous digital hierarchy. The STM-1 frame is

transmitted in exactly 125 s, therefore, there are 8,000 frames per second on a

155.52 Mbit/s OC-3 fiber-optic circuit.

The section overhead (SOH) of a STM-1 signal is divided into two parts:

the regenerator section overhead (RSOH) and the multiplex section overhead (MSOH).

SDH

MUX

NETWORKS

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The overheads contain information from the transmission system itself, which is

used for a wide range of management functions, such as monitoring transmission quality,

detecting failures, managing alarms, data communication channels, service channels, etc.

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In SDH, information is transferred through optical fiber. Through this technology we

are able to transmit data in terabytes using wavelength 1310 nm. There is no need to

demultiplex whole information coming from side by stations. Information to side by stations

is passed using STM-4 (Synchronized Transport Module) at 622.08 Mbps. 4 STM1

multiplexed in TDM (Time Division Multiplexing) forms STM-4. In this technology repeaters

are required at comparatively larger distances

Formation of E1 channel

E1 is the tributary signal for SDH to work.

256 such data packets give 65536 bps, approx. 64 kbps. 32 time slots of 64 kbps give E1

signal transmitting @ 2.048Mbps. E1 is bi-directional signal Out of these 32 channels 30 are

used as voice channel while 2 are used for control and signaling information.

0 Control data

16 - Signalling data: Carries information about the path E1 goes through.

E2=4 E1

E3=4 E2=16 E1

E4=4 E3=16 E2= 64E1

STM1=63 E1

0 1 2 3 4 5 16 31

1

:

:

7

0

16 31

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MULTIPLEXER(MUX)

In telecommunications and computer networks, multiplexing (also known

as muxing) is a method by which multiple analog message signals or digital data streams are

combined into one signal over a shared medium.

The multiplexed signal is transmitted over a communication channel, which may be a

physical transmission medium. The multiplexing divides the capacity of the high-level

communication channel into several low-level logical channels, one for each message signal

or data stream to be transferred.

A device that performs the multiplexing is called a multiplexer (MUX).

In DMRC, the Time Division Multiplexing is used. The Time-division

multiplexing (TDM) is a digital technology. TDM involves sequencing groups of a few bits or

bytes from each individual input stream, one after the other, and in such a way that they

can be associated with the appropriate receive.

Consider an application requiring four terminals at an airport to reach a central

computer. Each terminal communicated at 2400 bit/s, so rather than acquire four individual

circuits to carry such a low-speed transmission; the airline has installed a pair of

multiplexers. A pair of 9600 bit/s modems and one dedicated analog communications circuit

from the airport ticket desk back to the airline data center are also installed.

If done sufficiently quickly, the receiving devices will not detect that some of the

circuit time was used to serve another logical communication path.

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If data rate is less than 64 Mbps then, it is termed as sub-rate. If data rate is more than 64 Mbps then it is termed as super rate. Access-MUX is used for systems requiring transfer rate below 2.048 Mbps. It multiplex the data from the systems operating at the data rates lower than 2 Mbps into E1 lines. Since no single node will be able to use all the bandwidth therefore, all the data i.e. audio and video signals are multiplexed in order to make maximum use of available bandwidth.

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Optical Distribution Frame (ODF)

GSS and FPS together forms ODF (Optical Distribution Frame). At each node (or

station), optical fiber cables are terminated in the GSS (Generic Splicing Self) and are

distributed to the system through FPS (Fiber Patching Shelf). From the FPS patch cords, both

ends have connectors for connection, are sent to the SDH where apart from being

converted to electrical signal, the signals required at the particular node dropped (or

extracted) and multiplexed into E1 lines at 2.048 Mbps which are terminated at DDF (Digital

Distribution Frame). The DDF basically provides a flexible way of connecting equipment side

to cable side. From the DDF the system working at 2 Mbps rate is directly provided the

connections with required number of E1 lines. The systems working with lower rates than 2

Mbps access the network through FMX. The FMX demultiplexes the E1 lines coming from

DDF to the lines at the lower rates for use of various systems.

There are two GSS, one for up (in Depot direction) and other for down (opposite to

Depot). There are 48 trays in each GSS. All fibers coming from and going to adjacent stations

are passing through GSS. Fibers needed at particular station are connected to FPS in zero dB

connector (0.3dB loss) through pigtail cords, connector at one end only. These fibers are

then passed to SDH. And fibers not needed at particular station are spliced through.

Splicing is a technique for joining together individual fiber or optical cable sections to forms

continuous lines for these long distant links. Splicing can be done in two ways:

Mechanical Splices: This aligns the axis of the two fibers to be joint and physically hold them together.

Fusion Splices: This is accomplished by applying localized heating (i.e. by electric arc or flame) at the interface between two butted, pre-aligned fiber ends, causing them to soften and fuse together.

In DMRC fusion splicing is used. Splicing loss is around 0.1dB.

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NETWORKING

It consists of two or more computers that communicates and share their resources. Three types of network are:

1. LAN (Local Area Network): A LAN connects network devices over a relatively short

distance. A networked office building, school, or home usually contains a single LAN. LAN

are typically owned, controlled and managed by a single person or organization. They also

use certain specific connectivity technologies, primarily Ethernet and Token ring.

2. WAN: As the term implies Wide Area Network spans a large physical distance. WAN

is geographically dispersed collection of LANs. A network device is called a router connects

LAN and WAN. In IP networking, router maintains both a LAN address and a WAN address.

WAN differs from LAN in most of the ways. Like the Internet, most WAN are not owned by

one organization but rather exist under collective or distributed ownership and

management. WANs use technology like ATM (Asynchronous Transfer Mode), frame relay

X.25 for connectivity.

3. MAN: It implies Metropolitan Area Network. It is used to encompass larger areas,

usually that of entire city.

OSI Layers (Open System Interconnection):

OSI is the name for the set of standards for communicating among computers. The

primary purpose of OSI standards is to serve the structural guideline for exchanging

information between computers, workstations and networks.

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TELEPHONE EXCHANGE/EPABX

EPABX is stands for Electronics Private Automatic Branch Exchange. For purpose of

planting communication link between different stations, DMRC has its self-sustained

telephone exchange. This system works on -48 V DC from SMPS. Data is processed at a rate

of 64k bps.

EPABX System at OCC:

Telephone system shall interface to the radio system to enable radio users to initiate and receive calls to/ from EPABX extension or to MTNL or TATA INDICOM telephones. Centralized Digital Recording System: The telephone system is equipped with a CDRS for recording of designed lines, emergency PAS announcements and designated conversion system. Network Management System: The telephone network including EPABX and DLTC system is monitored, supervised and controlled by a NMS.

EPABX rack is divided in two shelves:

Shelf 0

Shelf 1

These shelves can be extended according to requirements.

Shelf 0 has CPU, which is comprised of following cards:

2 Power cards: This card distributes power to whole rack. One is active and another is redundant.

SF2X8 card: This card provides LAN ports for monitoring of EPABX at other stations.

2 DXCXL cards: These are CPU cards used for networking purposes. One card is active and other is not in use.

ADP: Administrative Data Processor. This is also a CPU card performs controlling information.

HDMO card: Hard Disk Magneto Optical card used for all software information backup.

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Shelf 1 comprises of following cards:

2 SLMAC cards: This card is for analog phones. Maximum 24 phones can be

connected to each card.

2 SLM02 cards: This card supports digital phones. Maximum 24 phones can be connected to each card.

LTUCA card: This card connects shelf 1 and 0 in EPABX rack. 2 DIUN2 cards: This card takes E1 signal from DDF. Links one station to other

stations. There are 2 ports in each card, one for analog and another for digital. 2 cards for linking to both sides.

Connection of Phones at a Station:

MDF-Main Distribution Frame

IDF-Intermediate Distribution Frame

24 ports from each SLMAC and SLM02 cards are passed to MDF through cables.

From MDF to IDF through jumper wires and then to field, i.e., phones at different rooms.

KRONES are arranged in array form in both MDF and IDF. Connector RJ11 connects handsets

to field lines from IDF. KRONEs are connected in MDF and IDF in array form, connection to

phones are supported through them.1 KRONE can support 10 phones. KRONEs in MDF are

covered with IPM, a protecting module. 2 pair of wires are connecting to single phone for

redundancy.

EXCHANGE

MDF

IDF

PHONE

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Stations Connectivity:

DDF-Digital Distribution Frame

SDH-Synchronous Digital Hierarchy

ODF-Optical distribution Frame

DDF takes 4 E1 tributary signals from SDH, 2 from stations at both sides, 1 for analog phone

and 1 for digital phone and passes to EPABX. E1 consists of 32 time slots each of 64k bps.

Slot 1 has control data and slot 16 has signalling information, rest 30 slots are used as voice

channels. So, maximum 60 calls can be done at a time.

EPABX network is connected in 8 ring topologies so that communication link between

stations retain.

DDF

SDH

SDH

EPA

BX

DDF

EPAB

X

ODF

ODF

Station 1 Station 2

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In DMRC, the two types of Phones are used:

Digital: (work on 48-54V DC)

a) Digital phone

b) Direct line console

Analog: (work on 38-40V DC)

Priority of digital phones is kept higher than that of analog phones, that is, digital

phone can take channel from analog port if all digital ports are busy.

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RADIO/ EBTS

EBTS stands for enhanced base transceiver system. EBTS is another important

equipment of DMRC. This system enables the access to the radio services while roaming

within the radio coverage. EBTS provides all the remote site functionality. EBTS has all

features of mobile communication and broadcasting of any information which are not

available with the telephone system. The radio communications system is designed for

providing system-wide voice and data communication to support the operation and

maintenance for Delhi Mass Rapid Transport System (DMRTS). It provides two-way voice

and data radio communication throughout the operational areas of DMRTS, to provide

efficient and effective train radio dispatching operation for Barakhambha OCC. One more plus point of this system is that it adds to the level of redundancy to the communication

network of DMRC if FOTS (Fiber Optical Transmission system) breaks down as whole

communication between the source and destination does not takes place through FOTS.

This system transfers data at a rate of 128 kbps.

DMRC uses MOTOROLA DIMETRA (Digital Motorola European Trunk Radio) which is

sophisticated digital radio equipment having full benefit of TETRA (Terrestrial Trunked

Radio) standards and range is 380-400MHz. Receiving range is 380-390 MHz and

transmitting range is 390-400MHz. This system works on -48 V DC supply from SMPS.

-compliant digital radio system. The system provides services to three groups of users:

Radio Users the mobile users in the system that can roam throughout the radio coverage area provided by the system. The radio users access the system services using Mobile Stations that communicate with the Base Stations in the infrastructure using the TETRA air-interface protocol.

Controllers users at fixed locations that have access to advanced features and facilities provided by the system. These features enable Controllers to efficiently communicate with and manage fleets of mobile users.

Network Managers responsible for managing and maintaining the Dimetra IP system. The system provides numerous applications that allow the network managers to efficiently manage the system.

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The system architecture of Dimetra-IP

Wireless transmission has the advantage of not having to install physical connections at every point, but is limited to Line of Sight (LOS). EBTS sites are place 25 to 75 miles apart. Thus, DMRC has total 15 EBTS sites out of which 9 EBTS sites are at line3. EBTS sites are similar to an antenna except for one thing i.e., it requires GPS synchronization signal through the GPS. Underground areas can not have EBTS sites hence, Leaky Co-axial Cables (LCX) are used, with Bidirectional Antenna (BDA).

TETRA Trunking: A method of traffic channel organization where a traffic channel is allocated for each call

transaction. Trunking facility provides a pooling of all radio channels which are then

allocated on demand to individual users.

Base

Station

Remote Base Station Site

Base

Station

Base

Station

Base Station Site

Base

Station


Base

Station

Base

Station

Base Station Site

Base

Station


Base

Station

Base

Station

Base Station Site

System

Level

Components

MSO

Components

Zone

Components

Zone

Components

Mobile Switching Office

(MSO)

Base

Station

Base

Station

Base Station SiteRadio Control Workstation (RCW)

Control

Site

Components

System

Interfaces

Radio Coverage Area

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Other

Systems

F

O

T

S

Base

Station


Base

Station

Base

Station

Base Station Site

Base

Station


Base

Station

Base

Station

Base Station Site

Base

Station


Base

Station

Base

Station

Base Station Site

System

Level

Components

MSO

Components

Zone

Components

Zone

Components

Mobile Switching Office

(MSO)

Base

Station

Base

Station

Base Station SiteRadio Control Workstation (RCW)

Control

Site

Components

System

Interfaces

Radio Coverage Area

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Mobile

Station

Other

Systems

F

O

T

S

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The radio users access the systems services via the Mobile Stations. The Base Stations (BSs) provide the radio interface that allows the Mobile Stations to communicate with the system

system is a single zone system. All the BTS are controlled by two Zone Controllers in redundant configuration. During operation, only one Zone Controller is active. The other Zone Controller is in standby mode and not taking any load. There is also additional equipment associated with the Zone Controllers. Each BTS is connected to a Mobile Switching Office (MSO) and two Zone Controllers on a redundant configuration and associated equipment are located at the MSO. The Controllers access the system services via Communication Consoles that are located at the OCC and the Control Rooms in Stations and Depots, or at a remote control sites such as the Stations and Depots. Each remote control site also has some further equipment in addition to the Dispatch Consoles. Each base station consists of base radios. Each base radios are assigned a frequency which is

the physical channel. This physical channel is divided into four logical channels using TDMA.

The first BR would normally contain the control channel, a packet data channel and two

traffic channels. The next BRs are normally assigned with four traffic channels each. The

base station is linked to the MSO using E1 via FOTS. This E1 link transports all information

coming from and going to the base station including alarm information, audio, data and

control information

SUN Netra 240 Server HP Proliant DL360 G5 Server

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MSO Component

The diagram below shows the various groups of components located at a Mobile

Switching Office (MSO)

Mobile Switching Office Component

Base Stations and Control Rooms

Co

reL

AN

Sw

itch

1

ZDS/FV/ZSS

ATR

UCS

Term Server 1

Gateway Router

MTIGs

GGSN

PDR

RNG

SDR

Cluster DC

Primary DC

Co

reL

AN

Sw

itch

2

Term Server 2

Gateway Router

Cluster DC

Secondary DC

CWR Panel

Core Routers

Zone Controller

Zone Controller

Echo

Canceller

Fan Out Switch

Collocated Control Site

NM Client

Printer

Telephone Interconnect

Data Elements

Cluster Level Elements

Console Elements

Core Elements

Base Stations and Control Rooms

Co

reL

AN

Sw

itch

1

ZDS/FV/ZSS

ATR

UCS

Term Server 1

Gateway Router

MTIGs

GGSN

PDR

RNG

SDR

Cluster DC

Primary DC

Co

reL

AN

Sw

itch

2

Term Server 2

Gateway Router

Cluster DC

Secondary DC

CWR Panel

Core Routers

Zone Controller

Zone Controller

Echo

Canceller

Fan Out Switch

Collocated Control Site

NM Client

Printer

Telephone Interconnect

Data Elements

Cluster Level Elements

Console Elements

Core Elements

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Types of Modes of Communication:

There are two types of modes of communication in DMRC network:

Trunked mode operation: This operation consists of four operation modes:

a) Group mode- It is a half duplex communication mode in which many user can

communicate with each other by selecting a common talk group. The operation is as

follows:

i) Select a talk group to communicate. ii) Press PTT (Press to Talk) to speak. iii) Release PTT to listen.

b) Private mode- It is a half duplex communication mode in which two users can

communicate with each other privately without interfering a talk group. The operation is as

follows:

Select a private mode by using mode key. Dial private ID. Press PTT and release. A ring will be heard. Press PTT to speak. Release PTT to listen.

c) Phone mode- It is a full duplex communication in which radio user can talk to phone

number used within DMRC or external network connected to DMRC. It can also

communicate in reverse direction, i.e., from phone to radio. The operation is as follows:

Select the phone mode by using mode key. Dial phone number. Press call/cancel key. Talk when call established. Press call/cancel key to end call.

d) Emergency mode-In emergency mode, TETRA in emergency mode has the highest

priority and every TETRA belonging to that group can listen the information.

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Base Station

The base station equipment is often known as a Base Transceiver System (BTS). Each base station provides radio coverage in a specific geographic area known as a cell and as the radio users roam around the systems coverage area, they move from one cell to another. The radio users use MSs that communicate with the BTSs using the TETRA air-interface protocol. This protocol contains mechanisms to allow the MSs to select the most appropriate BS for communication at any location without any intervention from the radio user. MTS4 has two E1 interfaces for easy ring configuration to promote high redundancy. With ring configuration failure on one side of the ring will not affect the working of any base station. MTS4 will be link to MSO using ring configuration.

Ring 1 Azadpur L2e

Ring 2 Jor Bagh L2e

Haus Khas L2e

Chhatarpur L2e

Ring 3 Arjan Garh L2e

IFFCO Chowk L2e

Ring 4 Yamuna Bank Depot L3e

New Ashok Nagar L3e

Botanical Garden L3e

Ring 5 Karkarduma L4

Ring 6 Punjabi Bagh L5

Paschim Vihar L5

Nangloi L5

Mundka L5

Ring 7 JLN Stadium L6

Mool Chand L6

Ring 8 Kalkaji L6

Sarita Vihar L6

Tughlakabad L6

MTS Ring Configuration

27 Training Report-


Metro Bhawan


New Delhi-110001

The standard BTS will equip with 2 carriers (TX) Base station serving OCC and also for two (2) of the underground station will be 4 carrier (TX) The BTS will be installed in the TER room at the station to provide the area coverage throughout the DMRTS network. The basic configuration will consist of the following components:

Tetra Site Controller (TSC) Base Radios (BR) Radio Frequency Distribution System (RFDS) Power Supply Unit

Base Radio (BR)

The Base Radio (BR) provides a high powered RF interface. It can provide up to 25 watts of RF power to the antenna system after RFDS losses. Each BR utilizes TDMA technology to provide 4 channels on a 25 kHz carrier. A single MTS 4 cabinet may hold up to four BRs. The BR also incorporates diversity reception for increased talk-back range, performance and reliability. A combined three-receiver board is provided with each BR to allow for 2 or 3 branch antenna diversity.

Site Controller (SC)

The Site Controller (SC) is a PowerPC based computer. It communicates with the MSO components over the E1 interface and controls the operation of the Base Radios. The SC also contains a time and frequency reference module. The module includes a high stability oscillator to provide the frequency reference and GPS receiver to provide the timing reference.

Radio Frequency Distribution System (RFDS)

The Radio Frequency Distribution System (RFDS) uses hybrid combiner to combine the outputs of the Base Radios into a one transmits antenna connection. The RFDS also uses a receiver multicoupler to distribute the signal from each of the receive antenna connections to each of the Base Radios.

Power Supply Unit (PSU)

The Power Supply Unit provides power to all of the units within the MTS 4. The PSU accepts 220 V AC or -48V DC inputs. In addition the PSU also provides the facility to charge an external battery supply and to revert to this power source in the event of input power failure.

28 Training Report-


Metro Bhawan


New Delhi-110001

Overall System Configuration

F

O

T

S

FOTS

FOTS

FOTSFOTS

Playback

& AdminMain

CDRS

HP2626

DLC 2E1

Line 3/3e/4/5/6

DLC 11-Ch

Line 1e/2e

LA

N

8 E

1

AVL

Client

MTS4

Main RCW

Server #1 (hot)

Main RCW

Server #2 (hot)

ATS

Gateway 5

ATS

Server 4

ATS

Server 5

Mundka Depot Sarita Vihar DepotYamuna Bank Depot

CCGW

ATS

Server 1

Khyber Pass DepotShastri Park Depot

MTS4

AVL

Server

ATS

Gateway 4

ATS

Gateway 1

CSR /

CCGW

LA

N

4 E

1

3 E

1

Playback

& AdminMain

CDRS

EBTS

X.21 Groomer

EBTSx9

Line 3

2 E

1

8 E

1

EBTS

X.21 Groomer

EBTSx6

Line 1/2

2 E

1

Line 1e/2e/3e/4/5/6

3 E

1

16 E1

1 LAN

17 E1

2 LAN

Line 3/3e/4

Line 5/6

Line 1/2e/2/2e

Redn RCW

Server #1 (cold)

Redn RCW

Server #2 (cold)

HP

26

10

HP

26

10

HP2626

HP

26

26

PABX

Master

Clock

PABX

Master

Clock

BRKR OCC (Active MSO)

Sub-systems to be provided by other contractor

Main

Lin

k

Red

nL

ink

GGSN

Redn

CR

ZCZC UCS SDR PDR

NMT

Printer

CWR mode

ATR

FVS

ZDS

ZSS RNG

Main

CR

Redn

CR

Main

CR

Dimetra LAN Switch (4 x HP2610)

BR

HP2626

MTIG

GRClstr

DC

Zone

DC

EC TS

SD

TS

, A

TIA

, C

AD

I A

PI

AV

L

Total 19 MTS4 in 8 Rings

GGSN

Main

CR

ZCZCUCSSDRPDR

NMT

Printer

ATR

FVS

ZDS

ZSSRNG

Redn

CR

Main

CR

Redn

CR


BR

HP2626

MTIG

GRClstr

DC

Zone

DC

ECTS

SHPK OCC (Standby MSO)

AV

L

L6 CC L6 TC1 L6 TC2 L6 TC3 L6 FMC

L3/3e/4/5

CC L3 TC1 L3 TC2

L3/3e/4/5

FMC

L4 TC3 L4 TC4 L5 TC5 L5 TC6

CER

BRKR OCC

TheatreSHPK OCC Theatre

DLC 2E1

Line 3/3e/4/5/6

8E

1 M

TS

4 r

ed

n

7E

1 V

orte

x

2E

1 E

BT

S

6E

1 V

orte

x

2E

1 E

BT

S

CWR mode

CWR mode CWR mode

Pro Switching Pro Switching

Vo

rte

x

MT

S4

EB

TS

Vo

rte

x

MT

S4

EB

TS

X.2

1

X.2

1

X.2

1

X.2

1

DLC 11-Ch

Line 1e/2e

RAD MP RAD MP

Ghitorni Depot

FOTS

L1/L2

CC L1 TC1 L1 TC2

L1/L2

FMC

L2 TC3 L2e TC4 L1e TC5 CER

Vorte

x

Clie

nt P

C

Vorte

x P

C

ST6000

CCGW

Remote

Border

Router

CCGW

CCGW

4 LAN

Vorte

x

Clie

nt P

C

Vorte

x P

C

Remote

Border

Router

HP2610

Vorte

x

Clie

nt P

C

Vorte

x P

C

HP2610

Vorte

x P

C

HP2610

Remote

Border

Router

Remote

Border

Router

CSR /

CCGW

Vorte

x

Clie

nt P

C

Vorte

x P

C

HP2610

Remote

Border

Router

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

HP

26

10

RCW

Proxy

(hot)

8E

1 M

TS

4 m

ain

CCGW

CCGW

Remote

Border

Router

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

HP

26

10

SD

TS

, A

TIA

, C

AD

I A

PI

CSR /

CCGW

CSR /

CCGW

DMRC Phase II - Option A Configuration

3 LAN

RCW

Proxy

(cold)

A/B Switch # 3 (8 E1)

A/B Switch # 4 (8 E1 + 1 LAN)

SD

TS

, A

TIA

, C

AD

I A

PI

LA

N

SD

TS

, A

TIA

, C

AD

I A

PI



AISAIS

AIS AIS

CSR

CSR

NajafGarh Depot

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

Vorte

x

Clie

nt P

C

3 E

1

F

O

T

S

FOTS

FOTS

FOTSFOTS

Playback

& Admin

Playback

& AdminMain

CDRS

HP2626

DLC 2E1

Line 3/3e/4/5/6

DLC 11-Ch

Line 1e/2e

LA

N

8 E

1

AVL

Client

AVL

Client

MTS4

Main RCW

Server #1 (hot)

Main RCW

Server #2 (hot)

ATS

Gateway 5

ATS

Server 4

ATS

Server 5

Mundka Depot Sarita Vihar DepotYamuna Bank Depot

CCGW

ATS

Server 1

Khyber Pass DepotShastri Park Depot

MTS4

AVL

Server

ATS

Gateway 4

ATS

Gateway 1

CSR /

CCGW

LA

N

4 E

1

3 E

1

Playback

& Admin

Playback

& AdminMain

CDRS

EBTS

X.21 Groomer

EBTSx9

Line 3

2 E

1

8 E

1

EBTS

X.21 Groomer

EBTSx6

Line 1/2

2 E

1

Line 1e/2e/3e/4/5/6

3 E

1

16 E1

1 LAN

17 E1

2 LAN

Line 3/3e/4

Line 5/6

Line 1/2e/2/2e

Redn RCW

Server #1 (cold)

Redn RCW

Server #2 (cold)

HP

26

10

HP

26

10

HP2626

HP

26

26

PABXPABX

Master

Clock

PABXPABX

Master

Clock

BRKR OCC (Active MSO)

Sub-systems to be provided by other contractor

Main

Lin

k

Red

nL

ink

GGSN

Redn

CR

ZCZC UCS SDR PDR

NMTNMT

Printer

CWR mode

ATR

FVS

ZDS

ZSS RNG

Main

CR

Redn

CR

Main

CR


BR

HP2626

MTIG

GRClstr

DC

Zone

DC

EC TS

SD

TS

, A

TIA

, C

AD

I A

PI

AV

L

Total 19 MTS4 in 8 Rings

GGSN

Main

CR

ZCZCUCSSDRPDR

NMTNMT

Printer

ATR

FVS

ZDS

ZSSRNG

Redn

CR

Main

CR

Redn

CR


BR

HP2626

MTIG

GRClstr

DC

Zone

DC

ECTS

SHPK OCC (Standby MSO)

AV

L

L6 CC L6 TC1 L6 TC2 L6 TC3 L6 FMC

L3/3e/4/5

CC L3 TC1 L3 TC2

L3/3e/4/5

FMC

L4 TC3 L4 TC4 L5 TC5 L5 TC6

CER

BRKR OCC

TheatreSHPK OCC Theatre

DLC 2E1

Line 3/3e/4/5/6

8E

1 M

TS

4 r

ed

n

7E

1 V

orte

x

2E

1 E

BT

S

6E

1 V

orte

x

2E

1 E

BT

S

CWR mode

CWR mode CWR mode

Pro Switching Pro Switching

Vo

rte

x

MT

S4

EB

TS

Vo

rte

x

MT

S4

EB

TS

X.2

1

X.2

1

X.2

1

X.2

1

DLC 11-Ch

Line 1e/2e

RAD MP RAD MP

Ghitorni Depot

FOTS

L1/L2

CC L1 TC1 L1 TC2

L1/L2

FMC

L2 TC3 L2e TC4 L1e TC5 CER

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

ST6000

CCGW

Remote

Border

Router

CCGW

CCGW

4 LAN

Vorte

x

Clie

nt P

C

Vorte

x P

C

Remote

Border

Router

HP2610

Vorte

x

Clie

nt P

C

Vorte

x P

C

HP2610

Vorte

x P

C

HP2610

Remote

Border

Router

Remote

Border

Router

CSR /

CCGW

Vorte

x

Clie

nt P

C

Vorte

x P

C

HP2610

Remote

Border

Router

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

Clie

nt P

C

Vorte

x P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

HP

26

10

RCW

Proxy

(hot)

8E

1 M

TS

4 m

ain

CCGW

CCGW

Remote

Border

Router

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

Vorte

x

PC

Vorte

x

Clie

nt P

C

HP

26

10

SD

TS

, A

TIA

, C

AD

I A

PI

CSR /

CCGW

CSR /

CCGW

DMRC Phase II - Option A Configuration

3 LAN

RCW

Proxy

(cold)

A/B Switch # 3 (8 E1)


SD

TS

, A

TIA

, C

AD

I A

PI

LA

N

SD

TS

, A

TIA

, C

AD

I A

PI



AISAIS

AIS AIS

CSR

CSR

NajafGarh Depot

CSR /

CCGW

Vorte

x P

C

HP2610

Remote

Border

Router

Vorte

x

Clie

nt P

C

3 E

1

29 Training Report-


Metro Bhawan


New Delhi-110001

POWER SUPPLY

The two redundant power supplies provide DC voltage power to the chassis. They

are front-loaded and come with a 6-foot (1.8-m) power cord. When both LEDs are lit, the

unit is functioning correctly.

Main and Standby MSO Switching Configuration

Redundancy

The operation of a Megaplex system depends on three critical modules: the power supply, the main link module, and the CL module. A failure in any one of these modules could disable the whole system, whereas a failure in an I/O module affects only a small part of the system, and can be generally overcome by using alternate routes, putting unused capacity into service, etc. The Megaplex system is designed to automatically put a redundant module in service in case the corresponding module fails, thereby ensuring continuous system operation in the event of any single module failure.

Interface Switches Interface Switches

Main

CDRSAVL/APL EBTS

Main

RCW Server

ATS Radio

Gateway

Server 4

(Line 3/3e/4)

ATS Radio

Gateway

Server 5

(Line 5/6)

Redundant

RCW Server

ATS Radio

Gateway

Server 1

(Line 1/2e/2/2e)

RCW RCW

BRKR OCC

Theatre 1

RAURCW

CER

RCWRAU

Depot

RCWRAU

Depot

RCWRAU

Depot

EBTSRedundant

CDRS

RCWRAU

Depot

RCWRAU

Depot

RCWRAU

Depot

RCW RCW

SHPK OCC

RAU

BRKR OCC

(Supports Line 1 to 6)

SHPK OCC

(Supports Line 1 to 6 When Main MSO Fails)

Option A:

New Dimetra IP MSO supports the entire DMRTS Phase I and Phase II network (Line 1 to 6)

Main/Standby MSO configuration for all lines

One homogenous system for all lines - Full voice and data roaming for all radio users

Option A:




RCWRAU

Depot

MTS

Dimetra MSO

(Standby)Dimetra MSO

(Main)

MTS

Interface Switches Interface Switches

Main

CDRSAVL/APL EBTS

Main

RCW Server

ATS Radio

Gateway

Server 4

(Line 3/3e/4)

ATS Radio

Gateway

Server 5

(Line 5/6)

Redundant

RCW Server

ATS Radio

Gateway

Server 1

(Line 1/2e/2/2e)

RCW RCW

BRKR OCC

Theatre 1

RAURCW

CER

RCWRAU

Depot

RCWRAU

Depot

RCWRAU

Depot

EBTSRedundant

CDRS

RCWRAU

Depot

RCWRAU

Depot

RCWRAU

Depot

RCW RCW

SHPK OCC

RAU

BRKR OCC

(Supports Line 1 to 6)

SHPK OCC

(Supports Line 1 to 6 When Main MSO Fails)

Option A:




Option A:




RCWRAU

Depot

MTS

Dimetra MSO

(Standby)

Dimetra MSO

(Standby)Dimetra MSO

(Main)

Dimetra MSO

(Main)

MTS

30 Training Report-


Metro Bhawan


New Delhi-110001

Main Design Parameter

Description Parameter

Proposed System TETRA Frequency

Transmit (Downlink) Range I

Range II

390 -394.999 MHz

395 -399.999 MHz

Frequency

Receive (Uplink) Range I

Range II

380 -384.999 MHz

385 -389.999 MHz

MTS4 RF output power 25W (44dBm)

Downlink Acceptance level 94dBm

Train Radio maximum RF output power 3 W (34.8 dBm)

Handportable maximum RF output power 1 W (30 dBm)

Train Body Loss 10 dB

TETRA Carrier spacing Minimum 25 KHz

DMO frequency band 380.5 MHz

Channel Spacing 25 KHz

Channel Bandwidth 25 KHz

Modulation /4-DQPSK

Modulation rate 36 Kbit/s

Transmitter-Receiver separation 10 MHz

Transmitter-Transmitter separation 150 KHz(min)

Voice Decoder ACELP

Multiple Access TDMA

Channels (time slots) per carrier 4

31 Training Report-


Metro Bhawan


New Delhi-11001

AUTOMATIC FARE COLLECTOR (AFC)

AFC Department of DMRC deals with the fare collection system. DMRC uses automatic fare

collecting machines. The AFC machines are installed at the entry of the station.

DMRC classified AFC in various things. such as:-

Ticket Office Machine (TOM)

The Ticket Office Machine (TOM) is a ticket transport semiautomatic vending and

consulting machine, handling Contactless Smart Cards and Tokens. The Ticket Office Machine is operated by an authorised operator to sell, add value, refund, replace, analyse cards and eventually make adjustment in case of surcharge detection. At the same time, passengers can follow the operations with help of the patron display. This sale terminal is a semiautomatic machine manually operated by employees of DMRC. The machine is a standard personal computer, connected to different appropriate peripherals. The operation is basically done through a screen and a keyboard connected with the PC.

Ticket Office Machine

GATES

TOKENS

Emergency

Switch

EFO

32 Training Report-


Metro Bhawan


New Delhi-11001

Ticket Office Machine

TOM also divided in various items:-

PASSENGER DISPLAY

CSC READER/WRITER

RECEIPT PRINTER

TOKEN AUTO-FEEDER MECHANISM

TOM PASSENGER DISPLAY

The Passenger Display is a pedestal mounted vacuum fluorescent graphic display capable of displaying messages in English and in Hindi characters. It can be moved and oriented towards the passenger in the best direction to indicate the relevant information concerning the transaction or the processing taking place. (Passenger display) It is linked to the TOM CPU via a serial link and it exists only on TOM. The language displayed depends on the language selected on vending operation (Hindi by default).

33 Training Report-


Metro Bhawan


New Delhi-110001

TOM CSC READER/WRITER The CSC module is constituted by a modem and an antenna

included in a plastic housing. This set is linked to the TOM CPU via a serial link. The CSC reader is powered up with a 12 V DC. The antenna is set under the top side of the box. This allows to put and leave the card on the box during the transaction. The CSC module reads and writes CSC data with secure access using diversified keys mechanism for authentication and selection of CSC. CSC reader/writer

TOM RECEIPT PRINTER

The receipt printer is a standard desktop dot matrix receipt printer. It is linked to the TOM CPU via a serial link. Receipt printer TOM TOKEN AUTO-FEEDER MECHANISM

The token Auto-feeder is composed with 2 containers, 2 hoppers, one mechanical housing including the bowl and an electronic board: power and communication to the TOM. It is linked to the TOM CPU via a serial link and it exists only on TOM. Auto-feeder mechanism

34 Training Report-


Metro Bhawan


New Delhi-110001

GATES

Equipment which controls the access of patrons from free area to paid area & vice versa according to business rules that device, which demarcates the paid & unpaid area, is known as a Gate.

There are two types of gates:

ENTRY ONLY

EXIT ONLY

BIDIRECTIONAL/ HYBRID

ENTRY ONLY

This gate is only used for the entry. From exit or leave the

concourse

EXIT ONLY

This gate

HYBRID/BIDIRECTINAL

This type of gate is used for physically challenged people. It is wider than the simple gate and is appropriate for any standard wheel chair to pass through.

35 Training Report-


Metro Bhawan


New Delhi-110001

TOKENS

These are the advanced tickets used in DMRC. It is used for Travelling or Entry in the

Metro Stations.

There are two types of tickets by which we can do our journey: Contact less smart card Contact less smart token

Contact less smart token:

It is a coin like device, which has a chip in which read & write operation

can be performed. It also consists of a coil, which is charged through

electromagnetic induction on interaction with the gate. A special machine

known as R/W module is used for the R/W operation in token.

Contact less smart card:

The external structure of CSC is like an ATM card or a

credit card, in which R/W & processing operation take place. It

has an electromagnetic coil at its edges, which is used for taking

power through radio waves, which is in micro volts. Before using

it, it is initialized i.e. password is encoded by DMRC through bulk

initialization machine during manufacturing.

TOKEN TYPES

Contact less Smart Token Contact less Smart Card

Single Journey Token Stored Value Type

Return Journey Token Tourist Type

Free Exit Token Agent Type

Paid Exit Token

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EMERGENCY SWITCH.

First Step for emergency is to use the GRCU in emergency mode. In case of problem use the emergency switch in the EFO. powered off control of Gates. The Emergency switch located in the EFO in front of the gate array is used to power off all the gate machines so that all the flap are automatically open to facilitate the escape of patrons through the passages

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Station Architecture

Lan/Wan Router

DMRC WAN Report & Log Printer

SC : Station

Computer

PTD Communication Unit

PTD for Ticket

Inspector

1 Switch

1 switch

1 switch

SE(b) SWSM(a) SM(c) SM(b) SE(a) SE(b) SM(a) SM(b)SM(c) SE(c)

Excess Fare

Office Room

Ticket Office Room

Printer

Receip

tPID

CSC

Module

TOM for EFO

TOM 1 TOM n

Station Control Room

X X X

E EE E

X X X X

EE E

Automatic Gate Equipments Barrier

FencingFencing

To Central System

Printer

Receip

tPID

CSC

Module

Token Capture Module

CSC Coupler & Antenna

Passenger Display

AGE Legend

E:Enter

X: Exit

LMT

LMT

LMT

(Laptop Maintenance Tool)

TR

(Ticket Reader)

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Passenger Information Display System (PIDS)

The aim of the system is to display and announce traffic information and other

convenient information along the station and various platform areas .The PIDS allows the

data input, transmission and diffusion of information concerning the movements of trains in

real time to all station users and the same for the application in main center using Ultra

Bright LED Display Panels .The system has capability to control virtually unlimited no. of

stations which can be done by the configuration of the network design . The PIDS designed

for the network has several functions such as displaying train scheduling

information and data related to train circulation like arrival and departure time.

The system is divided into two main parts:

The Operational Control Center: this refers to all the equipments installed in the OCC.

the details are :

Server

Assistant to Chief Controller PIDS /PAS workstation

PIDS Backup Control Panel

The Station System: this refers to all the equipments installed in the terminal stations. the details are :

WorkStation

Ultra Bright LED Panels

Central Passenger Information System: it is located at OCC and includes the system server and the Assistant Chief Controller Workstation.

The Remote Passenger Information System: It is located at each station and includes the station server, the station MMI (Man Machine Interface) position and Ultra Bright LED Panels. The station server located in each station receives periodic data at location information from the OCC server. In this manner it manages and controls the local Ultra Bright LED Panels.

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Passenger Address System (PAS)

It is one of the systems that create a user friendly ambience in the DMRC computer

services and it plays a very important role as well. As of date this system receives

information from the TIMS (management software) which is something similar to train

timetable as per the present time it sends information to this system and the address is

made. This is one of the reasons that a universal clock is required and that is the reason the

network is incorporated with a master clock server.

The scheme is such that the train driver has information about the timings and he has to see

that the train reaches a particular station as per the time frame it has been allotted, which is

similar to normal railways. The thing that is making it a little bit different from the railway is

that this timetable is a static one and so fixed and is totally computerized while that in the

railways is a dynamic one and it is user controlled.

Screen layout (Station PAS/PIDS)

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PASSENGER INFORMATION DISPLAY SYSTEM/ PUBLIC ADDRESS SYSTEM(PIDS/PAS)

The main purpose of the PAS and PIDS is to transfer information to the passengers at

concourses and platforms for notification of scheduled train arrivals and departures and

some special messages such as emergency or evacuation messages. This system takes 3

phase AC power supply from ACDB (AC Distribution Box). Each station has two PIDS at each

platform and 2 PIDS in concourse zone, so a total of 6 PIDS used.

UIM

UIM

MSU

RMU

DOM 1

AMPLIFIER 1 & 2

DOM 2

AMPLIFIER 1 & 2

DOM 3

AMPLIFIER 1 & 2

SERVER 1

SERVER 2

SYSTEM RACK

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SYSTEM RACK

Public announcement system consists of several modules which can be joined

individually and provide the opportunity to integrate external sources. It is expandable and

upgradeable. It consists of:

DOM (Digital Output Module)

MSU (MAIN SWITCHING UNIT)

UIM (UNIVERSAL INTERFACE MODULE)

PA (POWER AMPLIFIER)

RMU (Remote Monitoring Unit)

DOM (Digital Output Module)

This system converts digital to analog signals. The VARIODYN D1 modules DOM4-8

and DOM4-24 are equipped with four independent audio channels, each one able to drive

one 100V power amplifier and to provide two (DOM4-8) or six (DOM4-24) switched 100V

loudspeaker lines. So PIDS/PAS has a total of 12 channels, four from every DOM. All power

amplifiers are permanently supervised. In case of an error one or more backup amplifier

(optional) can replace defective power amplifier units. Used loudspeaker lines are

permanently supervised for short circuits, ground leakage, or circuit interruption. Faulty

lines are disconnected if necessary. The built-in automatic volume control (AVC) feature

permits permanent automatic volume adaptation of broadcasted sound to environmental

sound levels for each of the four audio channels in real-time.

DOM4-24 Front DOM4-24 Back

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MSU (MAIN SWITCHING UNIT)

It converts 3-phase AC supply to 110V DC. MSU unit distributes the mains power

to all the components mounted in the rack. In addition the unit offers a socket for the

connection of a laptop for local/network wide maintenance purposes. Each of the 3 phases

can be loaded with up to 18A. The operating state is indicated with a green indicator. A

front side 230V standard equipment socket and a RJ45 socket are available for the

connection of a laptop PC to the VARIODYN D1-Network; this connection enables the

possibility to check PIDS/PAS system at other stations.

MSU Front MSU Back

UIM (UNIVERSAL INTERFACE MODULE)

MSU can provide interface to components outside of the VARIODYN D1

system. An UIM can be connected to a VARIODYN D1 DOM. The UIM digitizes two

analogue audio inputs for instance from a CD-Player and an emergency or alarm message

system. Furthermore two analogue audio outputs are available for instance for recording to

tape.

UIM Front UIM Back

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PA (POWER AMPLIFIER)

Power Amplifier modules are equipped with two separate channels and 100V output

transformers and are controlled and monitored by VARIODYN D1 System modules DOM4-8

or DOM4-24. Features like electronic protection against thermal overload and short circuit

as far as temperature controlled fans are integrated. Three types of amplifiers with different

output power are available (2x200W, 2x300W or 2x500W).

2x500W Front 2x500W Back

RMU (Remote Monitoring Unit)

This unit is used to monitor 10 channels remotely whether they are working properly

or not. It also shows dB level of announcement.

Servers: Each station has two servers, one in HOT mode (perform normal operation) and

other in STANDBY mode. Both servers send status signal via RS-232 to watchdog/relay

switch. If trigger signal is missing, the Switchover unit will switch to the other server within

15 seconds. STANDBY mode is more reliable than HOT mode because there is a high risk

that both Servers may crash in some environmental conditions as both are performing the

same task.

There is a manual switch at the unit, watchdog changeover, so the Relays can be

switched either to position 1 (normal closed contacts) or position 2 (normal open contacts)

Display boards are controlled via RS485/RS422 serial lines, in case of failure it switches to

other workstation. Whenever changeover occurs an alarm indication (alarm pop-up window

and audio signal) is shown on the active MMI.

Server 1 is provided with PAS card but in server 2 it has PAS card only in underground

stations not at elevated stations.

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Operation of PIDS/PAS

Information about the train arrival is passed to OCC from interlocking station through

track circuits having sync loop. Every information from OCC server is sent with address bit,

so that, particular station for which information is sent, picks it up. Information sent will be

in code form, about announcement or display should take place in zone specified.

Display information goes directly to PIDS through bus-bar, but announcements from server

goes to universal interface module (UIM) through DVA (Digital Voice Announcements)

channel. UIM converts analog information to digital for use in amplifiers. DOM converts the

analog signal back to digital. After amplification information goes through defined channels.

SCR (Station Control Room): DMRC has one SCR at each station. Two MMI workstations

with digital call stations placed in SCR and controller in SCR manages the local PIDS/PAS

system of that station.

MMI Application:

MMI have remote access to the servers in TER. The Operator at SCR can initiate pre-

recorded messages or make live announcements from these MMI. The Operator at each

platform can also make announcements from a digital call station provided per each PSB.

The MMI is running on MMI PC workstation. First line contains DMRC name, Station

name, Username, name of the function, time and date. The second line contains pull down

menus for File, View and Help. The rest of the screen can be divided into 5 parts:

Function selection line: Selection of display and functions.

Station display: Different forms of station display with PIDS Display Board Content.

Function window: Different windows for different PAS/PIDS system function.

PA Input Status: Shows the in use status of PA sources.

Error Status: Shows the most recent Error/Alarm of PA/PIDS system / allows LIVE PA

messages to selected PA zones.

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Screen layout (OCC PAS/PIDS)

Documents

Aditya-summer Training Report delhi metro