Valcom Pagepac Plus V-5335621 Manual

Issue 1

1

947194

AMBIENT LEVEL CONTROLLER

V-5335621

by

PagePac

®

INTRODUCTION

The Ambient Level Controller (ALC) constantly monitors 

room noise and adjusts the paging level to accommodate 

for any changes in noise level.  It has a built-in Sound 

Pressure Level (SPL) meter.  

SPECIFICATIONS

The ALC has two inputs, a loop start input (Telco) and a 

balanced 600 Ohm line input.  The Telco input shall have 

priority over the line input.  The microphone can be placed 

up to 5000 feet from the ALC with shielded wire.  The ALC 

has five contact closure clock or remote control inputs.  The ALC has four double throw relay outputs that 

activate on the -6 dB and 0 dB levels.

The ALC adjusts page system level in 6 dB steps.  The Telco input is loop start and has priority over the 

line input.  The line input has a dry contact closure which will provide an isolated dry contact closure at 

the connections of the line output.

• Power consumption

60 Watts

• Frequency Response

250 Hz to 15 KHz + 2dB

• Signal to noise (dB ref.)

Better than -60dB

• Maximum output level

0dB, -12dB with jumper installed

• Output relay activaltion points

0dB and -6dB gain reduction

• Output relay contact rating

1 Amp

• Number of relay output contacts

4

• Input level controls (internal)

5

• Control requirements

Dry contact closure

• Input types

Line, Telco (loop start only)

• Output types

Line (600 Ohm)

• Contact closure on output

Yes

• Contact closure controlled input

Yes

• Front panel controls

Attenuation manual or automatic

• Front panel indicators

Power

Attenuation, automatic

Telephone input active

• Maximum MIC line length

5000 feet