American Audio VELOCITY - REV 4-05 Betriebsanleitung PDF herunterladen (Seite 112)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-107 Revision 4 : 05/09/12

Metro Baseline Re-Baseline: 04/29/10

Remote access via the telephone subsystem to PA subsystem shall be provided

from both the communications and the CCTV operations telephones at the ROC to

passenger stations. This feature shall allow the console operators to individually

select any passenger station for PA announcements or select any number of

stations for group announcements. This is a redundancy feature intended to provide

an alternate means of public address announcement in the event of a ROC server

or Cable Transmission System outage.

This feature shall allow live audio to be broadcasted via the telephone system.

Station selection shall be accomplished by dialing a designated phone extension. If

not busy, the call shall be automatically connected. Upon call connection, zone

selection shall be accomplished using the telephone Dual Tone-Multi Frequency

(DTMF) sequence and shall allow access to any one zone or “all zones” at the

station. The call shall automatically end when the ROC caller hangs up or upon

ROC caller selection of a hang-up DTMF code (whichever occurs first).

9.8.1.2.2 Console Access

Remote access via TPIS graphical user interface consoles shall be provided at the

ROC.

A. Consoles shall allow selection of one or more stations and zones or

announcement groups for broadcast of live or pre-recorded announcements.

B. It shall be possible to select broadcast destinations using a map-based graphical

display or a sort-able tabular style display.

C. Consoles shall allow system maintainers to define announcement groups for

quick selection of broadcast destinations. The system shall include the following

pre-configured groups:

1. Systemwide, all stations and all zones

2. Systemwide, all station platforms

3. All stations and all zones (one group for each rail line)

4. All station platforms (one group for each rail line)

D. Consoles shall include a maintenance display that indicates the following

information:

1. Status of each remote TPIS station control unit

2. TPIS server status

3. Status of each TPIS console

9.8.1.3 Pre-recorded Announcement Devices

A. Solid State, digital type prerecorded message repeater devices shall be

used in all stations for local automatic messages initiated by local contact

closures.

B. Equipment at the ROC shall be capable of recording and storing new

announcement.

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American Audio VELOCITY - REV 4-05 Betriebsanleitung Seite 112