Issue 6
1
947924
V-9924B
COMMON AUDIBLE RINGING UNIT
GENERAL
The Common Audible Ringing Unit provides an
audible signal over the paging system when there is
an incoming call. It is used between a telephone
system and the public address system.
SPECIFICATIONS
Activation
•
1A2 Bell/Buzzer ICM
•
PABX Station Port
•
Electronic Key System Station Port
•
Contact Closure
Features
•
Activates via ringing voltage, buzzer voltage or
contact closure
•
Capable of switching signal to three zones
simultaneously
•
Uses standard 1A2 key system voltages
•
Each zone is equipped with a 5 Watt amplifier
and volume control
•
Contains a punchdown block as part of the unit
•
Compact size, can be mounted on wall or in
cabinet
•
Automatically switches paging speakers from
paging system to audible signal of the V-9924B
during the ring interval of the incoming call
•
Variable pitch control
•
Two auxiliary contact closures
Other Materials Required
•
-24VDC power supply
•
Cat 3 or 5 twisted pair telephone cable
•
Mounting screws and hardware
Dimensions/Weight
•
8.20" H x 4.55" W x 2.30" D
(20.83cm H x 11.56cm W x 5.84cm D)
•
1.3 lbs. (.59kg)
Power Requirements
The V-9924B requires a -24VDC "B" battery and
draws 50mA idle and 300mA maximum operating.
Signal Requirements
The V-9924B requires interrupted ringing or buzzer
voltage or dry contact closure to operate. The output
of the V-9924B will follow the interruptions of the
input. The ringing voltage should be approximately
105VAC and the current requirement would be 8mA.
The buzzer voltage should be approximately 18VAC
and the current requirement would be 10mA. The
V-9924B pulls approximately 3mA through a dry
contact closure for activation. Ringing and buzzer
voltages cannot be applied simultaneously. Use only
one method of activation.
