(3) The visual display shall either indicate all calls
simultaneously, or scroll through multiple calls that are not
simultaneously displayed so that all calls are visible at least every four
seconds.
(4) The visual display capacity shall accommodate at least a 25
percent expansion in the quantity of call stations, or a minimum of 2
expansion stations, whichever is greater.
c. An electronic alert tone device. A momentary tone defeat switch shall
temporarily silence the current call alert tone with automatic reset so
that the alert tone will again sound when the next call is placed.
d.
A system "POWER ON" indicator light.
2.2.6
Dome Lights
a.
Flush mount units
b.
Two (2) configurations as shown:
[Type 1: Light only]
[Type 2: Light with an electronic alert tone device]
c. Indicator lamps and color filters for each type of call, with heat
resistant barriers between multiple lamps.
d. An electronic alert tone device. The alert tone device may be integral
to the dome light or a separate unit mounted within the dome light
enclosure.
e. The lens covers shall be shatterproof, heat resistant, and snap on and
off for changing of lamps without the use of tools. Lens cover shall not
deform, yellow, or craze with use or age.
2.2.7
Zone Lights
a.
Flush mount units.
b.
Two (2) configurations as shown:
[Type 1: Light only]
[Type 2: Light with an electronic tone device]
c. Indicator lamps and color filters for each type of call, with heat
resistant barriers between multiple lamps.
d. An electronic alert tone device. The alert tone device may be integral
to the zone light or a separate unit mounted within the zone light
enclosure.
e. The lens covers shall be shatterproof, heat resistant, and snap on and
off for changing of lamps without the use of tools. Lens cover shall not
deform, yellow, or craze with use or age.
2.2.8
Main Terminal/Equipment Panels
a. Panel cabinets shall be surface mount units with knockouts and a hinged
door with keyed lock. Each panel cabinet shall be plainly and permanently
labeled with the identification of the function served.
SECTION 16730A
Page 33
Previous Page
