American Audio VELOCITY - REV 4-05 Operations Instructions download pdf (Page 132)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-127 Revision 4 : 05/09/12

Metro Baseline Re-Baseline: 04/29/10

16) Emergency fan rooms

17) Elevator equipment rooms

18) Other ancillary room doors, as needed

Card key access also shall be provided for 1) through4) above for

underground facilities only. Card key access shall be provided for 5)

above for both above and below ground facilities. Roll-up grilles will

require two card readers; one on each side of the grille.

Card key access shall also be provided for 14) to suppress alarms for

authorized entry.

Intrusion for 7), 8), 11), 12), 13) and 18) shall be recorded as an event

only for historical reporting and shall not trigger an intrusion alarm when

the area perimeter is also secured by IDS.

An intrusion concept should be developed for large facilities (like

underground stations) so that the premises are protected, but not over-

protected (too many alarms may result in the system not being utilized).

Attention should be given to protecting the perimeter – all of those doors

that are dividing the public from non-public areas. In any case, the doors

requiring card readers will remain the same.

The system shall be designed to minimize false alarms. A combination

of key bypass switches and extra card readers, or other technology

which keeps alarms from being sent when a key is used to unlock a

door, should be used so that all alarms are valid alarms, not employees

going about their daily business.

b. Yard and shop facilities and central control:

1) Communications Equipment Rooms

2) Data Processing Rooms

3) Operations Control Rooms

4) CCTV Observation Rooms

5) Operations Computer Rooms

6) Yard Control Towers

7) Train Control Rooms.

Central Control facilities

shall also have card key access.

c. Intrusion alarms shall be indicated at central control and at the EMP

d. Local audible alarms with configurable automation timed resets shall be

provided for intrusion detection at emergency exit doors and hatches

and platform end gates.

e. Passive request to exit devices shall be installed to inhibit intrusion

alarms during egress from the secure side of any monitored entrance

2. The controlled access (CA) subsystem shall include card key readers,

validating terminals and hard-copy record printers. Card readers

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American Audio VELOCITY - REV 4-05 Operations Instructions Page 132

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