REGISTER

KC Selfe

Chief Engineer, Teknis Systems Division, Teknis Consolidated Pty Ltd

The Dry Creek - Port Pirie C.T.C. System controls the section of the Australian National Northern Standard Gauge Line between Dry Creek and Crystal Brook and the section of Standard Gauge Crystal Brook to Port Pirie, along with entrances and exits to the Crystal Brook to Wallaroo Standard Gauge and the Snowtown to Brinkworth Broad Gauge.

The system comprises eleven field stations at passing loops and a communications interface field location at Salisbury and office facilities at Mile End.

The main bearer provided is a 600 ohm pole line between Salisbury and Port Pirie with a full duplex, 4 wire, carrier channel, providing an alternate path to Port Pirie, which is back fed to the pole line automatically under pole line fail conditions.

All communications traffic between Salisbury and Mile End is via carrier channels.

The telemetry, communications equipnent, processor and ancillaries and mimic display drive equipment were supplied by Teknis Systems.

The mimic diagram, manual control panel and console and all installation and commissioning were carried out by the Signals and Conununications staff of Australian National.