The Lever Lock Circuit

Railway Point Lever Lock Circuit & The Indication Circuit

Lever Lock Circuit  Every set of points which has a passenger move over them, must be track locked as discussed in 9.17. Another way of achieving this is to prevent the controlling point lever from moving. In many situations, both methods are used to prevent the points from moving when a train is upon them […]

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The Detection Circuit 2

The Detection Circuit,The WL Control Circuit,Track locking,Point track locking,WL Valve Control,WL valve control circuit,The Ground Lock (WL), (viewed from above),WL clear of slide, Slide caught on WL  

The Detection Circuit Figs 1.12 and 1.13 show a typical detection circuit for a single ended right-handed set of Four Foots. To change the phasing of the ‘R’ side the BX and NX feeds need to be changed by 180º (R1 and R2 feeds swapped around). In the detection circuit this is achieved by using […]

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Interface Design

BAMRA APPLICATION LOGIC PROGRAM INTERFACE

BAMRA APPLICATION LOGIC PROGRAM PROGRAM TITLE   PROGRAM TITLE DISPLAYED ON SCROLLING DISPLAY OF MLKII FOR C1 PROGRAM MICROLOK_II PROGRAM BMB_C1_S01; FOR C2 PROGRAM MICROLOK_II PROGRAM BMB_C2_S01;   LOCAL BIT DEFINITIONS BOARD:  J1 ADJUSTABLE ENABLE:  1 TYPE:  NV.IN32.OUT32 NV.OUTPUT: 1DGKE,           1RGKE,                   1UGKE,      […]

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Railway CBTC Equipment

Railway CBTC Equipment

CBTC Components Vehicle On-Board System: – Vehicle On-Board Controller (VOBC) – Thales Radio (composed of Mobile Radio, Switches for Trusted and Untrusted Networks and Security Device); – Train Operator Display (TOD); – Transponder Interrogator (TI) with transponders; – Proximity Sensor with proximity plates; – Speed Sensors; and – Accelerometers. Way side Equipment:- • WRU – […]

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CHAIRLOCK CIRCUIT CONTROLLER (7)

RAILWAY SIX FOOT POINTS, CHAIRLOCK POINTS, CHAIRLOCK CIRCUIT CONTROLLER (DET.BOX), GROUND LOCK, CHAIRLOCK ELECTRICAL CONNECTIONS (L.H. TURNOUT), CLAMPLOCK POINTS PL&D

Railway Six Foot Points  • Electro-pneumatic operation • Escapement and drive mechanism are Mounted outside the running rails • Can be used with Bullhead rail • Escapement, Lock and Detection as per 4 Foot Point   CHAIRLOCK POINTS • Electro-pneumatic operation. • Air motor is mounted between the running rails. • There is no PL&D box […]

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