Monday, 21 December 2015
Monday, 3 March 2014
Electronic Block Instrument
First Electronic Block Instrument on Indian Railways
commissioned on 2nd March
Solid State Block Proving by Axle Counter (SSBPAC Digital) as per RDSO Spec. No. RDSO/SPN/175/2005 of EFFTRONICS is commissioned on Venkatachalam Jn. –Krishnapatnam Port (2 Block Sections) along with Doubling
These Block Instruments are different from the Block Instruments which work on
UFSBI/ MUX combiner as per RDSO/SPN/188/2004, which are based on Relay
Logic (uses more than 30 relays)
Features of the Electronic Block Instrument SSBPAC (D)
1. Convenient to Operate
· Non cooperative Type saves time in obtaining line clear compared to
SGE and DAIDO block instruments
· One block operation is reduced i.e. Block Closure takes place
automatically based on Axle Counter status after arrival of the train
· Non cooperative Type saves time in obtaining line clear compared to
SGE and DAIDO block instruments
· One block operation is reduced i.e. Block Closure takes place
automatically based on Axle Counter status after arrival of the train
2. Supports Diverse Communication Media
· Requires one pair of cable each for Block Instruments and Block Phone
· Works on Copper (Quad) Cable, Voice Channel, E1 Channel or dark fiber
· Requires one pair of cable each for Block Instruments and Block Phone
· Works on Copper (Quad) Cable, Voice Channel, E1 Channel or dark fiber
3. Maintainability
Maintainer Terminal
· On-line error codes display on maintainer terminal
· Inputs and outputs status of all CPUs can be seen on-line
· Remote end Block Instrument ‘state’ can be seen
· On-line error codes display on maintainer terminal
· Inputs and outputs status of all CPUs can be seen on-line
· Remote end Block Instrument ‘state’ can be seen
Data Logging
· It can be directly connected to existing Data Logger network
· It can be directly connected to existing Data Logger network
which enables trouble-shooting by a group of people viewing data
remotely (which includes OEM)
· Block instrument Equipment door opening monitored
· Block instrument Equipment door opening monitored
Spares
· PCBs [hardware] of both double and single line instruments are
· PCBs [hardware] of both double and single line instruments are
interchangeable – minimum spares maintenance
· Space provided to store standby PCBs in the same cabinet installed
· Space provided to store standby PCBs in the same cabinet installed
in relay room to ensure safe storage and reduced MTTR
· No disconnection of Block Instrument for maintenance since
no mechanical parts
4. Availability and reliability
· Inherent availability due to 2 out of 3 architecture one processor
· Inherent availability due to 2 out of 3 architecture one processor
failure does not lead to block failure
· Minimum interface wiring due to few relays
· Data lines and power lines are protected against surges by OBO
· Minimum interface wiring due to few relays
· Data lines and power lines are protected against surges by OBO
5. Power Supply
· Works on single power supply 24V DC (+20%, - 30%)
· No line supply required
· Works on single power supply 24V DC (+20%, - 30%)
· No line supply required
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