Valcom V-9908 Instruction Manual

V-9908 MESSAGE/PAGE PANEL
Introduction
These instructions contain the specifications and
guidelines necessary to install, operate, and
maintain the V-9908, Message/Page Panel.
The V-9908 Message/Page Panel provides a
handheld push-to-talk microphone for live pages and
storage for eight messages. The V-9908 is
compatible with all Valcom self-amplified speakers.
The microphone, power and internal memory are
monitored, with visual and audible indicators if any
fault conditions are detected. When used with
Valcom Supervised Distributed Amplified One-Way
Paging Speakers and Horns, full system supervision
including the speaker audio path is possible.
Applications
Valcom Supervised Distributed Amplified
One-Way Paging Systems.
Refer to Figure 1 for a block diagram of a typical
installation.
Features
Dynamic noise canceling handheld microphone
for live page
Provides up to 8 minutes of high quality digital
recording
Stores and plays up to 8 messages
Eight (8) preprogrammed messages included
PC Programmable
Message panel fully supervised
Provides speaker line supervision
Provides microphone supervision
Provides DC power supervision
Allows remote message activation
Visual and audible system trouble indication
Audible signal cancel button
Power "ON" indicator
Mounts in most 4 gang deep electrical box
Dimensions
5"W x 4.25"H x 2"D
(12.7cm W x 10.8cm D x 5.08cm H)
4 lbs. (1.5Kg)

Specifications

Power Requirements
Operating Voltage 22 – 26VDC
Current 250mA
Microphone Input
Input Impedance:
Input sensitivity:
output (output terminated with 100 Ohms)
Audio
Frequency Response:
Mic – Output:
Frequency Response:
Stored Messages – Output:
Input Sensitivity (mic):
output (output terminated with 100 Ohms)
Signal to Noise (Idle mode, Ref -12dBm):
Signal to Noise (Mic active, Ref -12dBm)
Distortion (Mic – Output):
Output Impedance:
Nominal output level:
Maximum output level:
System Supervision
Main Audio Channel:
Microphone:
Microphone Switch: DC loop with 4.7K Ohm resistor
Audio Output: DC loop terminated with a 4.7K Ohm
Voice Storage Memory:
Main Power:
Battery:
All system faults are indicated by both an audible
and visual alarm. The audible alarm may be
silenced, however, the visual indicator will continue
to illuminate until the fault is removed.
User Controls
Push-to-Talk Microphone
Pushbuttons to activate pre-recorded messages
Pushbutton to cancel message play
Pushbutton to cancel wire fault alarm
1
Issue 6
>5000 Ohms
1kHz 1 millivolt for -12dBm
150Hz – 7,000Hz
150Hz – 3,500Hz
1kHz 1 millivolt for -12dBm
< 1% THD at -12dBm
< 25 Ohms
-12dBm (Ref 600 Ohms)
0dBm (before clipping)
30Hz tone (inaudible)
1kHz tone supervises the preamp,
cable and element
1/4W resistor
Fixed segment memory
9VDC battery provides redundant
supervision power
Low voltage monitoring
(Figure 1)
947980
>70dB
>50dB
monitoring