American Audio VELOCITY - REV 4-05 Betriebsanleitung PDF herunterladen (Seite 106)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-101 Revision 4 : 05/09/12

Metro Baseline Re-Baseline: 04/29/10

9.6 RADIO SYSTEM

A new section to be created for digital Radio

9.7 TELEPHONE SUBSYSTEM

9.7.1 General

A. An IP Telephony System with an interface to the existing Metro private

telephone system shall be installed to provide telephone services to the public

and the ancillary areas of the rail system.

B. Included in the telephone system shall be:

• Administrative telephone (ATEL)

• Emergency telephone (ETEL)

• Passenger assistance telephone (PTEL)

• Maintenance telephone (MTEL)

• Gate (fare) telephone (GTEL)

• Public Telephone Service

• Elevator Telephone (LTEL)

C. Equipment failure alarms from each telephone subsystem at each location shall

be provided to the SCADA subsystem at each station.

All ETELS shall be provided with line status monitoring.

D. All phones will report their locations to the ROC or other phones within the Metro

system.

E. All telephones must have a dedicated line (no party line).

F. Public Telephone shall be provided by the local telephone company and will not

be part of the Metro private telephone system. The location of public telephone

shall be determined on a site specific basis near passenger stations and parking

facilities appropriate. In underground stations when public telephones are

provided, at least one Telecommunication for Deaf Device (TDD) shall be

furnished

9.7.2 IP Telephony System

The IP Telephone System shall be designed for console-less operation, with dial

service from IP Telephone sets, auto ring down service from ETELS, and public

address access from telephones with keypads.

The equipment shall be digital solid-state, modular design, utilizing the same Unified

Communications Manager with the latest hardware and software technologies.

Existing Communications Servers are to be used if already in place in Metro’s

network. Metro’s intent is to build a single Communications manager cluster to

provide call control and messaging for the entire system. Incremental growth may

require placement of phones only, phones and gateways and additional server

capacity. This will be determined by Metro Telecommunications Engineer based on

specific circumstances.

9.7.3 Administrative Telephone (ATEL)

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American Audio VELOCITY - REV 4-05 Betriebsanleitung Seite 106