Specifications

Engineering Standard –NSW
Signalling SMS 02
Cerberus Level Crossing Monitor Equipment
March 2005 Version 1.2 © Australian Rail Track Corporation Page 5 of 118
This document is uncontrolled when printed.
Table of Contents
1. Introduction ...........................................................................................................10
1.1 Referenced and Associated publications ......................................10
1.2 Definitions .....................................................................................10
2. Overview ................................................................................................................10
2.1 Monitoring (How does it operate?) ................................................10
2.2 Control and Interrogation ..............................................................13
2.3 Logging .........................................................................................14
2.4 Status Reporting ...........................................................................14
2.4.1 General ..................................................................................14
2.4.2 Maintenance disable of Status Reporting ...............................15
2.4.3 Codes reported to Control Centre ..........................................15
2.5 Digital Inputs .................................................................................16
2.6 Digital Outputs ..............................................................................17
2.7 Analogue inputs ............................................................................18
2.8 Battery Testing .............................................................................19
2.9 Configuration ................................................................................20
3. Operation and Functional Checks .......................................................................21
3.1 General .........................................................................................21
3.2 Main Box ......................................................................................23
3.2.1 General ..................................................................................23
3.2.2 SCADA 2000 A I/O Board ......................................................23
3.2.3 Power Supply Units (PSU) .....................................................29
3.2.4 Analogue to Digital Converter (ADC) ......................................31
3.2.5 Backplane ..............................................................................32
3.3 Current sensor ..............................................................................34
3.3.1 Description .............................................................................34
3.3.2 Function .................................................................................35
3.3.3 Operation ...............................................................................35
3.3.4 Configuration and Set-up .......................................................35
3.3.5 Troubleshooting ......................................................................36
3.3.6 Replacement ..........................................................................37
3.4 VIO ...............................................................................................37
3.4.1 Description .............................................................................37