Specifications

Engineering Standard –NSW
Signalling SMS 02
Cerberus Level Crossing Monitor Equipment
March 2005 Version 1.2 © Australian Rail Track Corporation Page 22 of 118
This document is uncontrolled when printed.
The level crossing monitor - Hardware Block Diagram shows how all
components of the Level Crossing monitor are connected together.
(Appendix D)
Signal Engineering, Standard circuits sheets X14 to X26 & X49, X50
detail the normal method of connecting the level crossing monitor to the
level crossing signalling equipment. X50 Part 2/2 shows the normal
method for connecting the level crossing monitor with the Westinghouse
SAFEFLASH unit. (see Appendix C)
3.2 Main Box
3.2.1 General
Check that the correct EPROM is inserted. EPROMs are labelled with
LXMON R3.7 (or later), and a date. The software in the EPROM should
be version R3.7 or later. The EPROM is fitted in U5.
Note: The EPROMs have to be inserted in the correct orientation. The
notch on the EPROM socket should match the notch on the EPROM. If
power is applied to a board with the EPROM incorrectly inserted, it may
damage the EPROM or the I/O Board.
The following drawings detail the main box:
M08-865A Front Panel layout
M08-865B Rear Panel layout
M08-866 Surge circuit drawing
M08-864A Wiring
M08-864B Wiring.
M08-851/1 ADC circuit,
M08-851 /2 ADC physical.
M08-862 Flasher interface Cables
CSSC SRA1016 Level Crossing Monitor unit assembly.
Sheet 4
CSSC SRA1016 Level Crossing Monitor unit assembly.
Sheet 5
CSSC SRA1022 V/Suppress PCB for SRA1016.
3.2.2 SCADA 2000 A I/O Board
S-2000 A/2.0 I/O Board is a general purpose micro controller board with
64 digital inputs and/or outputs. These 64 I/O can be configured as
either Inputs or Output in groups of 8. These are configured as 56 Inputs
and 8 Outputs for the level crossing monitor.