specifications:
Minimum Axial Sensitivity:
A pressure rating of 45 dB in compliance
with TIA/EIA SE-A-103
Within plus or minus 3 dB from 70 to
15,000 Hz
Minimum Dispersion Angle:
100 degrees
Line Transformers
Power Rating:
At least 4 watts with at least four taps
with insertion
rate of 0.5 dB.
Speaker Size:
200 mm 8 inches with 254 mm 1 inch voice
coil and minimum 142 grams 5 oz ceramic
magnet.
2.4
TYPE 3 SYSTEM
**************************************************************************
NOTE: Delate this scetion unless specifying a type
3 system.
**************************************************************************
A microprocessor switched multiple conversation path central control
intercommunication system shall be provided. The system shall be capable
of communicating with other master stations and remote stations selectively
or in any combination thereof. Each master station shall selectively
communicate with any other master station or any remote station by
actuating number assigned to called station. [Each master station shall
also be designed to initiate a message to all other master stations and all
remote stations simultaneously or in groups of not less than 10 stations.]
Station quantities shall be as indicated on drawings. [A paging functions
shall also be part of the system.]
2.4.1
Master Station
[Desk-top] [Surface wall] [Recessed wall] [Rack-mounted] master stations
equiped with:
1. A 12 digit keypad selector to transmitt calls to other stations and
initiate commands for programming operatins.
2. Volume control to regulate incoming call volume.
3. Light annunciation to identify calling stations and stations in use.
The light shall remain on until a call is answered.
4. Tone annunciation with a momentary audible tone signal that announces
incoming calls.
5. Reset controls that cancels calls and resets system for the next call.
6. [A handset with hook switch, telephone type, arranged to disconnect the
speaker when the handset is lifted. The cord shall be 450 mm 18 inch long
and permanently coiled.]
SECTION 16721
Page 16
Previous Page
