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OFC Based Signaling systemsDy. CSTE/CON/SC*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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A signal is a device to communicate to Loco Pilot to go ahead or
stop.Signalling system facilitates the safe and efficient movement
of trains on the railway.
1ROLE OF SIGNALLING IN RAILWAYS
-
Key Lock Inter locking The human element :Setting of the point
and locking is entirely manual through key and lock system.Signals
controlled by levers situated at the signals.
2
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Mechanical SignalingOperation of Points and Signals from a fixed
location with group of levers through rigid connection (Rod /
Wire)
System is interlocked mechanically by grouping the levers.3
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Electrical Signaling Panel InterlockingSignals controlled by
Operation from a Panel through cables by electrical means.Each
function to be operated individually Interlocking is achieved
through relays.
4
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Route Relay Interlocking
Individual operation is avoided.
Final function is achieved though pre-defined automatic
operation .5
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IBS / Automatic signaling IB / Automatic Signaling enhances the
section capacityAutomatic signals are self controlled and avoids
human operations
6
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Electronic Interlocking
Operation is done through computer or PanelMicroprocessor based
interlocking systemInterlocking is achieved through Software.
7
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Modern signalingTPWS: Automatic train protection and prevents
collision.Avoids SPAD cases.Transmits advance information to the
Driver & controls the engine.
8
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Advanced SignalingATC-Automatic Train Control., CTC Centralized
Traffic Control, Moving Block and Radio Block.
9
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OUTLINE on OFC based systemsIntermediate Block signals on OFC
using EI.Intermediate Block Signals on OFC using UFSBI.OFC based EI
working on remote/local operation.OFC based auto signaling.OFC
based ASM-LC Gate Voice logging system.OFC based SP/SSP for Remote
ControlCommercial exploitation on Passenger
Amenities*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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OFC Based IBS using EI*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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COMMUNICATION FACILITIES REQUIRED AT IBS*Dy.CSTE/Con/SC*IB
ROOMSTN-ASTN-BDN IB ACDN IB BPACUP IB PHONEUP IB ACUP IB BPACDN IB
PHONERTUUP IB RESET DN IB RESET DN IB BPAC RESET UP IB BPAC RESET
OFC FROM STATION TO STATION6 QUAD6 QUAD
Dy.CSTE/Con/SC
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COMMUNICATION FACILITIES CAN BE EXTENDED THROUGH
OFC*Dy.CSTE/Con/SC*IB ROOMSTN-ASTN-BDN IB ACDN IB BPACUP IB PHONEUP
IB ACUP IB BPACDN IB PHONERTUUP IB RESET DN IB RESET DN IB BPAC
RESET UP IB BPAC RESET OFC FROM STATION TO STATIONALTERNATE
OFCALTERNATE OFC
Dy.CSTE/Con/SC
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PROTOCOLS*Dy.CSTE/Con/SC*IB PHONE: VOICE COMMUNICATIONIB
UNIVERSAL AXLE COUNTER: 2 wire E&M.IB DIGITAL AC: V.21 modem
communication (2 wire).IB BPAC: V.21 modem communication (2
wire).IB RESET MODEM: V.21 modem communication (2 wire).RTU: Analog
Channel of OFC, digital microwave and analog microwave or 64KBPS
data channel on OFC or digital microwave ( 4 wire E&M)
Dy.CSTE/Con/SC
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INTEGRATION OF COM EQUIPMENT AT IBSMODEL-1:Using Existing STM-1s
and PD MuxesMODEL-2:Using Dark fibers RAD Make MP 2104.Moxa Make
Manageable Switch EDS-405A/408A Series
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Model-1Using Existing STM-1
*Dy.CSTE/Con/SC*STN-ASTN-BEXISTING OFC2 Port STM-12 Port
STM-1
Dy.CSTE/Con/SC
-
Drawbacks:Dependent on existing power supply at OFC
Huts.Reliability of STMs and PDMUX for safe communication.Copper
working between OFC Hut to Relay Room.Advantages:Remote Management
of STMs. Alternate Path for existing
telecommunication.*Dy.CSTE/Con/SC*
Model-1Using Existing STM-1
Dy.CSTE/Con/SC
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Model-2 Dark Fiber*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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SPLIT CARD FILE AT IBS*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Integration of signalingOne EI unit can maintain two discrete
redundant network links:Step 1: Data packet P1 delivered by EI - A1
is duplicated and transmitted on Comm board ports E1 & E2Step
2: EI A2 Ethernet Port E2 receives data packet P1 before Ethernet
Port E1Step 3: When EI A2 Ethernet Port E1 receive data packet P1
it is discarded due to duplicate ID
*Guntakal Division*E1E2EI- A1E1E2EI A2Network - ANetwork -
BP1P1P1P1P1P1P1P1Packet Discarded
Guntakal Division
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COMPLETE SCHEME*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Electronic Interlocking (EI) split card file*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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EDS 408A Switches and NPort 5650I-8-DT*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Front View of EI Card file, Multiplexer and FMS in a
rack.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Panel Indications to ASM regarding redundant system failure even
at IBS and fiber break with alarm.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Front view of the entire rack at Srikalahasthi
station.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Manageable Switch EDS-408A Series2. Terminal block for power
input6. Power input PWR1 LED7. Power input PWR2 LED8. Fault LED9.
MSTR/HEAD: LED indicator10. CPLR/TAIL: LED indicator11.
10/100BaseT(X) ports12. TP ports 100 Mbps LED13. TP ports 10 Mbps
LED14. 100BaseFX ports15. 1 FX ports 100Mbps LEDs16. Model
Name*Guntakal Division*
Guntakal Division
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Manageable Switch EDS-408A Series1.Grounding screw2. Terminal
block for power input3. Console port4. DIP switches5. Heat
dissipation vents17. Screw hole for wall mounting kit18. DIN-Rail
kit*Guntakal Division*MTBF: 11,02,845 hrsWarranty: 5 years
Guntakal Division
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Remote Monitoring UnitN Port 5650I-8-DT*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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RAD Make MP 2100*Guntakal Division*
Guntakal Division
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MP 2100 GENERAL VIEW16 SLOTSADAPTIVE TIMING FACILITY. CRYSTAL
OSCILLATOR WITH 32PPM.POWER: 230/110 V AC, -48V/24V DC (INTERNAL
JUMPER SELECTION)REDUNDNACY: One logic/power card can be removed
while working.*Guntakal Division*
Guntakal Division
-
MP2100 REAR VIEW*Guntakal Division*
Guntakal Division
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MP 2100 POWER SUPPLY*Guntakal Division*
Guntakal Division
-
MP 2100 CONTROL SUBSYSTEM*Guntakal Division*ETHERNET PORTRS 232
FOR SYSTEM MANAGEMENTREPLACING CL CARD DURING FAILURE:STAND BY CARD
CAN BE REPLACED WITH OUT DISRUPTING SERVICES.FIRST FLIP TO STANDBY
MODULE BEFORE REPLACING ONLINE MODULE.
Guntakal Division
-
Cost AnalysisExisting systemProposed System*Guntakal
Division*Typical section length: 12KM
S.No.Description of the itemCost in 000 of Rs.16 quad
cable3000230 core cable37503Power cable15004Location boxes &
accessories625Total8875
S.NoDescription of the itemCost in 000 of Rs.1OFC cable 7802Hdpe
duct6753Communication equipment12004Solid state
interlocking4000Total6555
Guntakal Division
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Failure Analysis As Per SFROne failure for Past 20
Months.Commissioned in Nov-2012.17.04.2013: Up IB Axle Counter
Failed. Reason: VR relay Contact Problem.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Failure Analysis IB Passing at Danger*Dy.CSTE/Con/SC*
S.NO PB-1DATECOUNTER
NUMBERSREMARKSFROMTOFROMTO121.01.1329.12.13000067000075RGM working,
Duomat Machine, Cable meggering, AC o/p selection switch
modification to
IPS222.01.14---000075000078Cablemeggring316.05.14----000078000079B/I
failed
Dy.CSTE/Con/SC
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Issues need to be addressedHow to bring reset command?Addition
or modification of logic during redundant axle counters, IB circuit
modification.MP2104 to be replaced with MP2100 for complete
security.Hot Stand by conversion is not done.
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Why reliability is achieved?Failure rate is proportional to
number of components required to be function with in their
characteristics.Normally 12 pairs of signalling cable, 4 pairs of 6
quad cable, power cable is required to be available round the clock
for working of IB. This will increase the probability of failure.
With OFC only two pairs are required and when path redundancy is
provided the probability is also reduced by .*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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OFC BASED IBS USING UFSBI*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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OFC Based IBS using UFSBI*Dy.CSTE/Con/SC*HA SSDACHA SSDACHA
SSDACHA SSDACMAPLE 4CMAPLE 4CRelay Inputs16 In / 16 OutDark
FiberMain link FiberProtection Path OFCECATECATOr / Dual
SSDACUFSBIUFSBI
Dy.CSTE/Con/SC
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Cost AnalysisExisting systemProposed System*Guntakal
Division*Typical section length: 12KM
S.No.Description of the itemCost in 000 of Rs.16 quad
cable3000230 core cable37503Power cable15004Location boxes &
accessories625Total8875
S.NoDescription of the itemCost in 000 of Rs.1OFC cable 7802HDPE
duct6753Communication equipment12304UFSBI1600Total4285
Guntakal Division
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MAPLE-4C Front and Back Plane*Dy.CSTE/Con/SC*MAPLE 4C Back
PanelMax. FXO/FXS channels : 30, Max E&M channels : 24, Max
V.35 channels : 3
Dy.CSTE/Con/SC
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E CAT-01 Black Plane*Dy.CSTE/Con/SC*BACK PANEL ECAT 01L FRONT
PANEL ECAT 01L LED IndicationsE1 PortsEthernet PortOFC up links
Dy.CSTE/Con/SC
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Little View NMS*Dy.CSTE/Con/SC*Windows-Package based Centralized
Network Management Application to manage MRO-TEK TDM products
familyJava based compliant system supporting SNMPv1, v2c and v3
standardsClient-Server architecture (Multiple clients can access a
single server simultaneously)Highly scalable for growing networks
(Manages up to 20000 nodes)
Dy.CSTE/Con/SC
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OFC BASED EI WORKING ON REMOTE/LOCAL OPERATION
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Centralized and Distributed Architecture of EIsReference: TAN
No. STS/E/TAN/3008 dated 31.03.2014.Distributed architecture for EI
shall be adopted by IR for Interlockings with more than 50 routes
while centralized architecture may be used for interlocking routes
upto 50.
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Centralized and Distributed Architecture of EIsFor Green field
Projects:New line, doubling, gauge conversion.Centralized EI with
OCs at way side stations may be used which shall have provision of
local as well as centralized operation.
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Centralized and Distributed Architecture of EIsFor up gradation
of interlocking on branch lines with Object controllers at way side
stations and signal controlling VDU from signal control centre for
operation.
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Centralized and Distributed Architecture of EIsThe architecture
and distribution of object controllers may be made Line/Zone wise
so as to result in minimum repercussion to traffic in case of
failure of any Object Control Module or the power supply or its
connectivity to Electronic Interlocking.
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Centralized and Distributed Architecture of EIsAll level
crossing gates in the block-section, IBSs, Automatic Block Signals
and BPAC may be interlocked using Distributed architecture with
Object controllers.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
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Data Communication equipment shall be provided in redundant mode
with fault tolerant working.Such works should be taken up on
complete section as a whole.*Dy.CSTE/Con/SC*Centralized and
Distributed Architecture of EIs
Dy.CSTE/Con/SC
-
*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Configuration of Distributed EI.Will present Parbhani to mudhked
doubling CTC type architecture in next presentation.Tentative model
of Centralized and Distributed Architecture of EIs submitted by
medha to RDSO.*Dy.CSTE/Con/SC*Centralized and Distributed
Architecture of EIs
Dy.CSTE/Con/SC
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OFC BASED AUTO SIGNALLING*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
OFC Based Auto Signalling*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
*Dy.CSTE/Con/SC*ECUp Entry 3Up Entry 5Up Exit 1Up Exit
3RTURTUECECOFC Based Auto Signalling
Dy.CSTE/Con/SC
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Cost Analysis*Dy.CSTE/Con/SC*Existing systemProposed System
S.No.Description of the itemCost in 000 of Rs.16 quad
cable550230 core cable7503Power cable3004Location boxes &
accessories625Total2225
S.NoDescription of the itemCost in 000 of Rs.1OFC cable 1562HDPE
duct1353Communication equipment16004UFSBI1600Total3491
Dy.CSTE/Con/SC
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OFC BASED ASM-LC GATE VOICE LOGGING SYSTEM.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Centralized Voice Logging SystemProblems in existing system:
Several unusuals were noticed in the recent past where gateman and
ASMs were not following proper procedure in train operations and
the level crossing gates were kept open to road traffic. A
Centralized voice logging model for monitoring ASM/Gate Man
Communication is developed by this unit.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
Centralized Voice Logging System*Dy.CSTE/Con/SC*SDH Way Side
StationE1Master Phone : Station MasterLC Gate PhonesPort
2Individual stations groomed into E1Voice logger with individual
PortsE1FxS FxO FxO FxOE1 - 1E1 - 2E1 - 1E1 - 3E1 - 4Central
SiteTapped at cable hut
Dy.CSTE/Con/SC
-
MAPLE 4 at the OFC hut - front panelThe STM E1 is terminated in
the krone available at the cable hut from where it will connected
to the MAPLE 4 a 10 Way Krone is already provided at the cable.The
ASM LC gate phone copper wire also goes through the cable hut which
is tapped and kroned. Power Supply for MAPLE 4 is -48VDC or 230VAC
at cable hut -48VDC is available.*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
MAPLE 4 at the OFC hut - Back panel*Dy.CSTE/Con/SC*E1 Port of
MAPLE 4 is kroned where we have kroned the STM E1. The FxO port is
kroned where we have already tapped and kroned of the ASM LC gate
phone At each cable hut we will have two E1s terminated on the
kroneFxO Port FxO Module
Dy.CSTE/Con/SC
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Central Voice logger*Dy.CSTE/Con/SC*Front Plane16 x 4 or 8 x 8
portsStorage: 500 GB x 2Compression ratio: 0.7
Screen providing the details of recordingOff hook : starts
recording, On hook: records for 7 seconds and disconnects.MAPLE
4CRecorded Audio
Dy.CSTE/Con/SC
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Extension of SSP/SP/TSS Communication Data on Fiber
*Dy.CSTE/Con/SC*Station: Cable HutRTUMAPLE 4CECAT 01ECAT
01PDMUXMAPLE 4CFIBERRCControl phone: 4WECAuto PhoneSSP/SPETH4W
& Phone InputEC : Emergency Socket
Dy.CSTE/Con/SC
-
Centralized IIPS with remote diagnostics and
advertising*Dy.CSTE/Con/SC*
Dy.CSTE/Con/SC
-
ConclusionAn additional OFC shall be laid all along the section
on alternate path priority wise to improve signal reliability with
2.3 lakhs per Km in all IB sections.
*Dy.CSTE/Con/SC* Cost Break up/Km
S.NoDescription of the itemCost in 000 of Rs.1OFC cable 782HDPE
duct673Trenching, Laying and Blowing604Fixed costs/Km25Total230
Dy.CSTE/Con/SC
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THANK YOU*
Dy.CSTE/Con/SC
****
