Valcom V-9908 dimensions Introduction, Applications, Features, Dimensions, Specifications

Issue 6

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:	>5000 Ohms
Input sensitivity:	1kHz 1 millivolt for -12dBm
output (output terminated with 100 Ohms)

Audio

Frequency Response:
Mic – Output:	150Hz – 7,000Hz
Frequency Response:
Stored Messages – Output:	150Hz – 3,500Hz

Input Sensitivity (mic):	1kHz 1 millivolt for -12dBm
output (output terminated with 100 Ohms)
Signal to Noise (Idle mode, Ref -12dBm):		>70dB
Signal to Noise (Mic active, Ref -12dBm)		>50dB
Distortion (Mic – Output):	< 1% THD at -12dBm
Output Impedance:		< 25 Ohms
Nominal output level:	-12dBm (Ref 600 Ohms)
Maximum output level:	0dBm (before clipping)

System Supervision

Main Audio Channel:		30Hz tone (inaudible)
Microphone:	1kHz tone supervises the preamp,
		cable and element

Microphone Switch: DC loop with 4.7K Ohm resistor

Audio Output: DC loop terminated with a 4.7K Ohm

		1/4W resistor
Voice Storage Memory:		Fixed segment memory
		monitoring
Main Power:	9VDC battery provides redundant
		supervision power
Battery:		Low voltage monitoring

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 (Figure 1)

Push-to-Talk Microphone

Pushbuttons to activate pre-recorded messages Pushbutton to cancel message play

Pushbutton to cancel wire fault alarm

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