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

voltage at the battery terminals. Then get the IO states from the monitor. Record these

values and the battery offset. The battery offset is changed to correct the displayed

voltage.

Set the phone numbers for the level crossing Control Centre. Enter the dial up phone

number with commas to add pauses to allow time for the dial tone to sound before the

number is dialled. The default dialling is tone dialling. If the phone line being used only

works with pulse dialling then add the letter 'p' to the start of the phone number.

e.g. tone dialling ,063,337316

pulse dialling p,063,337316

Correspond the lamps This is best done by enabling reporting changes on the

appropriate serial channel and watching the changes occur on the PC screen when the a

lamp is removed or restored. Operate the crossing then correspond one lamp from each

lamp stand.

Test and confirm that the expression data is correct for any non-generic expression by

function testing them.

Select lamp diagnostics mode. While the crossing is not operating, check that no lamp

diagnostic information is displayed for any lamp channel. While the crossing is operating

check that the correct number of lamps is reported at least 95% of the time. If not

examine lamp adjustment, lamp types, and retry lamp learning.

Set modem initialisation string as per the form and reset monitor with the modem

connected and turned on.

Ensure both serial ports for the monitor are set at the correct values.

Use a phone on the telephone line to make a test phone call. Paying attention to any

audible noise on the line. If the line is noisy have Telstra fix the line.

Use the menus to enable reporting of status changes for serial channel A. (only if level

crossing monitor is reporting to a Control Centre)

Use the menus to enable maintenance disable of reporting for serial channel A.

Perform a battery test using the operations pin number and measure the test current

using a tong meter.

Cause a battery fault by pulling out the Alarm relay on the alarm card in the battery

charger. Confirm that this fault status is correctly reported to the Control Centre. Restore

the alarm relay and reset the battery charger alarm card. Press the Fault Reset push

button on the front of the front of the monitor. Confirm that this normal status is correctly

reported to the Control Centre.

As a final check visually confirm and verify with the XR circuits that the TEST SW ZK VIO

is the correct voltage type and that it is correctly marked in the circuits.

Check to confirm that the monitor case is isolated from the B12 and N12 supplies. This is

done as an additional check against manufacturing defects or installation problems.

Get a copy of the log from the monitor. Examine the log to confirm that it contains an

accurate record of the events on the crossing during the commissioning period with no

anomalies or spurious events. Unexplained event or problems must be investigated and

corrected.