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

AT & F & C1 & D2 S)=@ Q1 E0 %C0 \N0 X2 M0 S37=17 &W

Maestro Companion, uses a Rockwell Chip set.

AT & F & C1 & D2 S0=2 Q1 E0 %C0 X2 +MS=11,,,28800,,,28800 &W

Nokia GSM Card phone Modem (Serial port A is set for 9600bps).

AT & F S0=2 E0 Q1 +IFC=0,0 &W

AT & F S0=2 +CBST=7,0,1 +IFC=0,0 E0 Q1 &W

2.9 Telephone line

The telephone line is a normal telephone line. It may be tested by plugging in a normal

telephone, then using the phone to ring someone and receive a call. When talking listen

for any "noise" on the line. Excessive noise will prevent the modem from working

correctly. An indication of possible telephone line problems is when there seems to be a

high number of failed connections from a remote site.

2.10 Interface Relays and Timer

The following list contains the additional relays and timers required for the Level Crossing

Monitor installation: Refer to Appendix D for the specification sheets of the relays and

timers.

a) BATTERY TEST Relay: QBCA1 12V DC. This relay is a standard Q type relay

and is available from Logistics and other suppliers. The base must also be

ordered.

b) TIMER TEST Relay: HH23PW-T 12V DC. This relay is a 11-pin relay with 3

changeover contacts, MI No:06600415. This relay and a matching base is

available from Logistics. The 11-pin base mounts onto DIN rail, MI

No:06600076.