Instruction manual

Clear-Com Communication Systems
ICS-2003 Intercom Panel Instruction Manual
3-9
Figure 3-11: Analog Block diagram—ICS-2003 Main PCB
EQ
EQ EQ
DTMF Generator
AUX. AUDIO OPTION
HOT MIC OUTPUT SA OUTPUT
SPEAKER FEED OUT
ANNOUNCE TONE FROM MICROPROCESSOR
RS-422 COM MODULE
4-WIRE TALK 4-WIRE LISTEN
BALLANCED PROGRAM INPUT
HEADPHONE #1 HEADPHONE #2
SPEAKER
PANEL MICROPHONE HEADSET MICROPHONE
MIC GAIN TRIMS & SWITCHES
LIMITER
MICROPROCESSOR CONTROLLED VCA VOLUME CONTROLS & MUTE SWITCH
MICROPROCESSOR CONTROLLED AUDIO SWITCH
ICS-2003 AUDIO BLOCK DIAGRAM
Jan. 14, 1998
Intercom Intercom Intercom Program Program Program Sidetone Sidetone
Sidetone
Program
1 1 1 2
2
2
3 3
3 3
PROGRAM VOLUME INTERCOM VOLUME