Clear-Com CS-702 - Manual (Page 8)

C S - 7 0 2 T W O - C H A N N E L M A I N S T A T I O N 1 - 2
Visual signal circuitry (call lights), a standard feature on all main and remote
stations, allows you to attract the attention of operators who have removed
their headsets.
Depending upon the type of main and remote stations selected and assuming
that enough DC power is available remote stations and headset stations can be
distributed along 1 mi. (1.67 km) of wire. Remote stations bridge the intercom
line at a very high impedance and place a minimum load on the line. The
audio level always remains constant and does not fluctuate as stations leave
and join the network.
The DC power provided by main stations and power supply units enable
remote stations to operate with minimal current while generating extremely
loud listen volumes. The higher voltage and low current keep voltage losses to
an absolute minimum in long lines.
DESCRIPTION
The CS-702 is a portable, two-channel main station with a regulated power
supply and a versatile monitoring system. It features excellent speech
intelligibility in all noise-levels. The CS-702 contains a mic preamp with a
limiter.
The CS-702 provides DC voltage and the ability to talk and listen on two
separate channels. It supports and monitors two intercom lines containing
remote headset or remote speaker stations.
Figure 1-1 CS-702 Front Panel
Figure 1-2 CS-702 Rear Panel
Headset
CS-702
2-Channel
Main Station
Call
Remote
Mic Kill
Sidetone
B
Prgm
Feed
Level
Program
Volume
D.C. Short
Intrpt
Pgm
Sidetone
A
Prgm
Feed
Level
Intrpt
Pgm
Announce
Earphone
Party LIne
Link
Volume
Talk
Ch. A
Ch. B
Channel A Channel B
Off Off
Program Input
Mic
Line
30V
, 1.2A
Continuous, 2A
Peak
On
Off
On
Off
Term
Relay Out
Channel
B
Channel
A
The power provided by
main stations and power
supply units enable remote
stations to operate with
minimal current while
generating extremely loud
listen volumes.