Tech Works ICA-202D - Basic Prison Guard Intercom Setup; Prison Guard Intercom Wiring Diagram; Prison Guard Intercom Jumper Settings

06/29/17 ICA-202D OPERATION AND INSTALLATION MANUAL Page 24 of 32
Basic Prison Intercom Setup
Below is the basic wiring of the components used for a simple Prison Guard Intercom.
The External Reach Control allows the Guard to adjust the Sensitivity to hear low level
conversations . The stepped control is pulsed to "UP" to increase sensitivty, or step "DOWN" to
reduce the sensitivity. Holding the "Down" control will cause it to auto-increment to the Preset-
Value
Below are the internal jumper settings for the simple Prison Guard functions
OP MIC (-)
REM SPKR (+)
REM SPKR (-)
OP MIC (+)
OP SPKR (-)
COMMON
OP SPKR (+)
COMMON
PAGE OUT (-)
PAGE OUT (+)
24VDC-2A
P-TONE SW
PTT SW
PAGE SW
ACTIVATE SW
MUTE SW
SHUT OFF SW
CHASSIS
+24VDC
COMMON
ICA-202D
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CALL SW
OP EXT DN
COMMON
OP EXT UP
COMMON
LINE OUT (+) LINE OUT (-)
OPERATOR
LEVEL
ACTIVE ACTIVE
LEVEL
REMOTE
POWER
Tech Works
DODC-2
OPERATORREMOTE
CONSOLE MIC
TECH WORKS
HM-1
CONSOLE
SPEAKER
25V OR 45 OHM
PUSH TO TALK SWITCH
ALL PAGE
SWITCH
EXTERNAL PAGE
AMPLIFIER
IF REQUIRED
TECH WORKS
PA-402
EXTERNAL
STEPPER
CONTROL