Specifications

RailCorp Engineering Manual — Signals — Equipment Manual

Cerberus Level Crossing Monitor Field Equipment Manual TMG E1261

Issued August 2012 UNCONTROLLED WHEN PRINTED Version 2.1

• Input Optoisolator

• Output Optoisolator

• Cables

• Interface relays

• Battery test load resistor

• Modem

• Telephone line surge protection unit

• Telephone line

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, X 50 details 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)

2.2 Main Box

2.2.1 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.

CAUTION

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.