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Engineering Standard –NSW

Signalling SMS 02

Cerberus Level Crossing Monitor Equipment

March 2005 Version 1.2 © Australian Rail Track Corporation Page 44 of 118

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If the Outputs are permanently ON then

Check the LED on the suspect circuit

board. If the LEDs are extinguished check:

Replace Output Opto board

If the LEDs on the suspect circuits are lit

check: I/O Cable connection

Replace Output Opto Board

Replace Main Box

Check cable for damage

3.6.6.1 Testing a Single Output

Determine the expected state of the output. Compare the expected

state with the state of the LED in the Output Opto Board for the

suspect circuit.

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Dataplex DPX-213 Spezifikationen Seite 44