Specifications

Engineering Standard –NSW

Signalling SMS 02

Cerberus Level Crossing Monitor Equipment

March 2005 Version 1.2 © Australian Rail Track Corporation Page 57 of 118

This document is uncontrolled when printed.

4. Remove the existing EPROM if one is fitted by using a IC

extractor to grip both ends and pulling up.

5. The new EPROM must be inserted in the correct orientation. The

notch on the EPROM socket must match the notch on the

EPROM. The pins on the EPROM may have to be flattened first if

the EPROM is being inserted without an insertion tool.

6. Align the EPROM and its pins to the socket.

7. Push the EPROM down into the socket. Taking care not to bend

any pins.

8. Check the EPROM is orientated correctly and all pins are

properly seated.

9. Replace the ADC board if it was

removed. 10.Replace the top cover. If the

main box is later than Version 1.0:

1. Undo the I/O Board securing screws and use the ejectors at

either end of the I/O Board pull the board half way out of the

main box.

2. Location the EPROM IC site which is labelled U5. It is at the front

of I/O Board, a third of the way in from the left when looking

down from the front of the main box.

3. The ADC board may have to be removed by undoing the phillips

screw and lifting it up.