Specifications

HEADSET CONNECTORS;
MIC ON/OFF/(ON) SWITCH
There
are two dynamic
headset
connectors
on the CS-2
10 front panel;
the
one labelled
Headset I is associated
with the Mic On/Off/(Momentary
On)
toggle switch above
it.
When there is no input to either headset connector, the CS-210's mic
preamplifier shuts off automatically.
This eliminates any noise pick-
up at the unused input.
The headset connector pin-out assignment is:
PIN 1--mic common
PIN 2--mic hot
PIN 3--headphone common
PIN 4--headphone hot
When operatirng the system, DO NOT place
the headset(s) within two feet
of an AC power transformer or the mic(s) will pick up a hum.
OTHER OPERATIONAL CONSIDERATIONS
Termination
One audio termination per channel is required, and the CS-210 is set up
with internal jumpers to provide that termi nation (that is, if it is
the only power-supplying station in the system).
The intercom line terminations are removable resistors, appropriately
marked on the printed circuit board. They can be pulled to allow the
CS-210 to operate as a "remote" station if another power supply is
connected to the system. If your system does include a second CS-2 10
or other Main Station or Power Supply, system termination is provided
by just ONE source. The termination switches in all Power Supplies/
Main Stations must be "off" except at one "master" location. (Do not
attempt to remove jumpers without the proper test equipment and know-
ledge of
electronic adjustment procedures.)
Unconnected Channel Inputs/Outputs
If your system includes a multi-channel
station that has one or more of
its channels not physically connected (e.g., empty input
connector),
the unconnected channel(s) MUST be terminated at that station (THIS AP-
PLIES TO ALL STATIONS: MAIN, REMOTE, OR POWER SUPPLY).
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