Instruction manual

OPERATION / Clear-Com CS-222 2-Channel Main Station
SECTION 3 / OPERATION OF THE CS-222 2-CHANNEL INTERCOM STATION
Normal operation of the CS-222 only requires access to the front panel controls. For
intercom operation set the Listen Level controls for each channel to desired level and
press the Talk switches when talking. The rest of this section is a detailed description of
each control.
3.1 FRONT PANEL DESCRIPTION
CS-222 Front Panel
1. Talk Buttons
Each channel has its own illuminated "Talk" button for activating the microphone feed
to a
given channel. Mechanically the pushbutton is
momentary in action, however
electrically the button has dual action (momentary or latching) depending
on how the
button is pressed.
LATCHING: Pressing the button quickly will "toggle" the "talk" function, alternately turning it on or
off.
MOMENTARY: Pressing the button for longer than 1/4 second will turn the button
press into a momentary function such that when the button Is released the "Talk'
function will turn oft. In any case the "Talk" function is activated all of the time the
button
is pressed.
TALK INDICATION: The 'Talk" button will Illuminate dimly indicating when a "Talk" is
activated.
CALL INDICATION: The
'Talk" button will illuminate brightly
when a "Call" signal is
received on that channel.
2. Call Buttons
Each channel has its own "Call" button. Pressing the "Call" button at any time will
send a "Call" signal on that
channel regardless of the activation
of the "Talk" circuit
for that channel.
The "Talk" button for that channel will illuminate brightly while the "Call" button is
pressed indicating the presence of a "Call" signal on the line.
11/90 Rev. 1.0 Page 17