American Audio VELOCITY - REV 4-05 Instructions d'exploitation télécharger pdf (Page 140)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-135 Revision 4 : 05/09/12

Metro Baseline Re-Baseline: 04/29/10

The battery room shall contain provisions for housing batteries for communications

battery/rectifier plant and UPS Module/battery system.

9.16.10 Yard Control Tower Equipment

Provide a train dispatcher console in the Yard Control Tower identical to the train

dispatcher console at central control with the following services available:

A. Yard operations radio channel.

B. Emergency operations radio channel.

C. Transmit amplifiers and receive amplifiers, if required, shall be provided in the

Yard Control Tower communications equipment room.

D. Supervision, base station disable, voting control, patching, and other radio

facilities management control shall be performed by the communications

controller at central control.

9.17 YARD COMMUNICATIONS

9.17.1 General

The functionality of the various communications subsystems is described in other

sections of this document. Only the specific application of subsystems to the Yard

and its buildings is described in this subsection.

9.17.2 Communications (COMM) Equipment Room

The Communications Equipment Room shall be located in the vehicle maintenance

shop building. All terminal equipment for communication circuits to, from and within

the Yard shall be installed at this location.

All communications Yard duct banks and Yard-to-mainline transitional

communications duct banks shall terminate in a cable vault under or adjacent to the

Communication Equipment Room and have at least 20% separate conduit capacity.

9.17.3 CTS

The fiber optic and PCM multiplex CTS terminals for the Central Control/Yard

backbone line shall be located in the C&S room (reference Cable Transmission

Systems Backbone System).

Local distribution throughout the Yard and associated buildings shall be by standard

telephone cables as outlined in Cable Transmission Systems Backbone and Local

Distribution - Metallic Pairs. Main feeder cables shall be provided to major buildings,

e.g., Maintenance of Way, when they are present.

9.17.4 Telephone Service

All Yard telephone service (ATEL, ETEL and MTEL) shall be provided from the

appropriate Yard Metro private telephone system. Functionally, all services shall

operate as described in the telephone system with the exception that ETEL circuits

within the Yard complex shall ring to the Yard control room. Additionally, if the call is

not answered after three rings, the call shall be automatically forwarded to the

central control emergency reporting position.

9.17.5 Public Address

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American Audio VELOCITY - REV 4-05 Instructions d'exploitation Page 140