Clear-Com CS-100 User Manual

OPERATION OF SYSTEM
PS-3000 INTERCOM POWER SUPPLY
DESCRIPTION
The PS-3000 is a regulated intercom power unit designed to power all Clear-Com
remote stations. Typically, it can be installed in areas not requiring a headset
function,
i.e., isolated rack bays.
The PS-3000 su-plies 30v at 2 amps and is capable of supporting a minimum of
40 Clear-Com remote stations. It is protected against shorts in the cable by
current foldback in the regulator circuit and provides visual indication of such
conditions on the front panel system. The unit has provisions for an auxillary
program input to the intercom system with the level adjustable from the front
panel.
INSTALLATION' AND OPERATION
The PS-3000 can be mounted in a standard 19" rack. Because the PS-3000 can
dissipate a considerable amount of heat, it is ,r ecommended that at least an
inch of space be allowed above the unit to facilitate ventilation.
All interconnections to the unit are made from the rear panel. Four parallel
D3M connectors are provided for system output. As in any Clear-Com system,
the
lines to the remote stations may be "home-runs" or the stations may be
"daisy chained." Once the system has been set up, the overall level may be
adjusted with system level control.
If, at any time, short circuit conditions are encountered, the problem can
usually be isollated by removing the interconnect cables from the unit, one
at a time, until the short circuit indicator goes out. It may be necessary
to shut the
unit off for a few seconds to reset the short circuit indicator.
An internal 1-1/2 amp
slow-blow fuse protects
the PS-3000 in case of internal
power supply failure. If the fuse repeatedly
blows,
it means the power transistor
or a component on the
p.c. board has failed. The cover is held on by "snap on"
fasteners. To remove - pull cover up hard.
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Clear-Com CS-100 Specifications

General

frequency response	250 Hz - 10 KHz (-3 dB ref. to 1 KHz)
headset microphone input level	-55 dBm
headphone output level	9 volts rms into 600 Jl
distortion	Less than 0.5%
system impedance and level	Approximately -25 dBm into 200
auxiliary input audio level	100 mv into 600 Jl
channel separation (CS-200)	> 45 dB
headset input connector	2 - 4 pin connectors (D4M)
interconnect output connectors CS-100	6 each in parallel, Switchcraft D3M
interconnect output connectors CS-200 Channel A	3 each in parallel, Switchcraft D3M
interconnect output connectors CS-200 Channel B	3 each in parallel, Switchcraft D3M
auxiliary input connector	Switchcraft D3M
power supply	28 volts circuit breaker protected
power requirements	115/230 volts 50-60 Hz. 80 watts maximum
capacity	Will support up to 40 RS-100A or MR-102 remote stations or 15 KB-100 or KB-lll remote stations

Weight and Dimensions

dimensions CS-100/CS-200	9.5"L X 4"H X 8.5"D
dimensions CS-100K/CS-200K	19"L X 3.5"H X 9.125"D
weight CS-100/CS-200	6 lbs. 14 oz.
weight CS-100K/CS-200K	6 lbs. 15 oz.