Specifications

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1.800.ANIXTER • anixter.com
12.45
Sound, Paging and Public Address
Bogen
Sound, Paging and Public Address
Intercoms;Desktop Control Centers/10997
Index1.Networking Systems//Video Products//Video Security Systems
BOGEN PR7998V2-8129.tif
The PI35A and SI35A High-Powered Desktop Control Centers are dual-channel
intercom and program distribution systems for applications with numerous locations,
requiring maximum intelligibility of voice announcements and other sources.
FEATURE
S
•Communicate with 25 to 75 rooms or remote locations
•Distribute program material from microphones, tape player/tuner, or other
background music sources, tone signals and emergency announcements to all
or select locations
•Five inputs
Ambient Noise Sensor System;Sound Levels/3137
Index1.Networking Systems//Video Products//Video Security Systems
BOGEN PR7976V2-8063.tif
The ANS-501 automatically adjusts the paging levels in response to changes in the
ambient noise of an area. Small sensor microphones monitor the ambient-noise
levels in an area served by a single amplifier. The ANS-501 control unit will adjust
(boost or reduce) the input signal levels to the amplifier to ensure that the paging
announcements will be heard at an audible, clear and comfortable level over the
current ambient noise.
FEATURES
•Automatically adjusts paging level as ambient noise rises and falls
•Supports up to four small sensor microphones
•Sensor microphones can be located up to 2,000 ft. from control
•Only two wires needed for connection of sensor microphones
•Easily connects in at preamp out - power amp in process loop
•Shapes frequency response during high noise levels for best intelligibility
ACCESSORIES
Voice-activated Relays;Sound Levels/10987
Index1.Networking Systems//Video Products//Video Security Systems
BOGEN PR7977V2-8066.tif
The VAR-1 is a relay device that monitors audio activity over a wide range of input
voltages and operates two sets of C-Form relay contacts in response to detected
activity. The VAR-1 can be used to detect voltages as low as signals directly from a
microphone or as high as signals from 70 V speaker systems. A low-level output of
the detected audio, transformer-isolated from the input, is also made available for
use with other equipment. Also can be used as a balanced low-impedance
mic preamp.
FEATURE
S
•Two sets of C-Form (both N.O. and N.C.) relay contacts respond to audio activity
•Four levels of input signals: microphone, 600 ohms line, 25 V and 70 V
speaker systems
•Built-in balanced, low-noise, high-gain microphone preamp
Intercoms
Anixter No. Vendor No. Description
273291 PI35A 25-room maximum intercom and program
distribution system
273296 SI35A 75-room maximum intercom and program
distribution system
ANS-501 Paging Electronics
Anixter No. Vendor No. Description
235742 ANS501 Ambient noise sensor with power supply and
one microphone
Anixter No. Vendor No. Description
235743 ANS500M Additional microphone for ANS500
VAR-1 Paging Electronics
Anixter No. Vendor No. Description
235749 VAR1 Voice-activated relay (requires PRS40C P.S.)