SUMMER TRAINING REPORT
KIIT College of Engineering ,Gurgaon
SUBMITTED BY:- ADITYA KUMAR ELECTONICS AND
COMMUNICATION
5th Semester
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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%297 Training Report-
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DELHI METRO MASTERPLAN-2021
http://en.wikipedia.org/wiki/File:Masterplan_of_Delhi_Metro.png8 Training Report-
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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
Remote Base Station Site
Base
Station
Base
Station
Base Station Site
Base
Station
Remote Base Station Site
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
Remote Base Station Site
Base
Station
Base
Station
Base Station Site
Base
Station
Remote Base Station Site
Base
Station
Base
Station
Base Station Site
Base
Station
Remote Base Station Site
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.
26 Training Report-
Delhi Metro Rail Corporation Ltd Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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
Dimetra LAN Switch (4 x HP2610)
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
A/B Switch # 1 (9 E1 + 1 LAN)
A/B Switch # 2 (8 E1 + 1 LAN)
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
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
NMTNMT
Printer
ATR
FVS
ZDS
ZSSRNG
Redn
CR
Main
CR
Redn
CR
Dimetra LAN Switch (4 x HP2610)
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)
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
A/B Switch # 1 (9 E1 + 1 LAN)
A/B Switch # 2 (8 E1 + 1 LAN)
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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:
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
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:
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:
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
RCWRAU
Depot
MTS
Dimetra MSO
(Standby)
Dimetra MSO
(Standby)Dimetra MSO
(Main)
Dimetra MSO
(Main)
MTS
30 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
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
36 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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
37 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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)
38 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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.
39 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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)
40 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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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Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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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Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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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Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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.
44 Training Report-
Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
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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Delhi Metro Rail Corporation Ltd
Metro Bhawan
Fire Brigade Lane,Barakhamba Road,
New Delhi-110001
Screen layout (OCC PAS/PIDS)