Description
This document describe the rules for use of communications equipment in the Network.
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Purpose
To prescribe the rules for using communications equipment in the Network.
Communications equipment
Communications equipment listed in the following table, or compatible with equipment listed in the table, may be used to establish spoken effective communication in the Network.
Before rail traffic travels in the Network, equipment fitted to communicate with Network Control must be working correctly.
If Network Control communications equipment is defective, the Network Controller must:
- tell Maintenance Representatives about the faulty equipment, and
- establish alternative communication methods.
If a train’s communications equipment becomes defective, Drivers must act in accordance with NTR 410 Defective equipment.
The following table lists the protocols to be used for each type of communications equipment.
| Communications equipment | Protocol | Emergency button |
|---|---|---|
450.050 MHz | Open-channel | No |
In-cab Communication Equipment (ICE) | Discrete-channel if communicating with Train Control, or through a pre‑set or dialled‑in number. Open‑channel if communicating with other trains or ground staff that are using portable handset. | Yes |
Digital Train Radio System (DTRS) | Discrete-channel | Yes |
Government Radio Network (GRN) | Open-channel and discrete‑channel | No |
UHF radios | Open-channel | No |
Yard radios | Open-channel | No |
Control phones | Discrete-channel | Some |
Mobile phones | Discrete-channel | No |
Satellite phones | Discrete-channel | No |
Standard phones | Discrete-channel | No |
Trackside phones | Treat as discrete‑channel | No |
If a Network communications failure is declared, the Deputy Executive Director Network Operations must make sure that:
- appropriate controls are in place to ensure effective communications, and
- all Train Crews, Network Controllers and Signallers are advised of the Network Communications failure, and
- trains will enter the Network from Maintenance Centres, out-depots and sidings using an alternative means of communication.