User Manual

Clear-Com Communication Systems
AB-120 Announcer Console Instruction Manual
2-2
AB-120 SYSTEM BLOCK DIAGRAM
Figure 2-9: AB-120 Console Block Diagram
BAL/UNBAL
SELECT
1/2 6-PIN
HEADSET
CONNECTOR
ELECTRET
POWER
PREAMP
GAIN
SELECT
LIMITER
LOGIC
MUTE
INTERCOM 1
MUTE TALLY
COUGH BUTTON
TALKBACK TALLY
TALKBACK
LINE LEVEL
GAIN SELECT
CC/RTS
GAIN
SIDETONE
ADJUST
A/B CHANNEL
SELECT
(REAR PANEL)
OPTIONAL
30 DB
PAD
LINE LEVEL OUT
INTERCOM
CLEAR-COM/RTS
LOOPS THRU
POWER
STRIPPER
30 VOLT
POWER
SUPPLY
CONSOLE
POWER
1/2 6-PIN
HEADSET
CONNECTOR
HEADPHONE
OUTPUT
HEADSET
AMPS
LEFT VOLUME
RIGHT VOLUME
LEFT EAR
RIGHT EAR
DIP
SWITCH
SELECT
-INTERCOM A -SPARE -IFB 2 -IFB -SPARE -SPARE -INTERCOM A -SPARE -IFB 2 -IFB -SPARE -SPARE
100-240 VAC
30 VDC
IFB
INPUT