Clear-Com AB-120 - Manual (Page 18)

Clear-Com Communication Systems
AB-120 Announcer Console Instruction Manual
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Setting Jumpers
Setting Dip Switches
Wiring of Connectors
The pinout for the intercom XLR-3 connector is as follows:
• Pin 1 = ground
• Pin 2 = +30 volts power
• Pin 3 = intercom audio
The pinout for the IFB XLR-3F connector is as follows:
• Pin 1 = ground
• Pin 2 = IFB 2 and power
• Pin 3 = IFB 1
JP1 1-2 Unterminate intercom line
JP2 Not used
JP3 Not used
JP4 Not used
JP-5 1-2 Power intercom line
JP6 Not used
JP-7 1-2 Clear-Com Intercom Level
JP-8 Mic output Set per chart in a following section
JP-9 Mic Pre’p gain Set per chart in a following section
JP-10 Mic Pre’p gain Set per chart in a following section
JP-11 Mode Set per chart in a following section
S2 Left ear select S3 Right ear select
1 open 1 open
2 open 2 open
3 close 3 open
4 open 4 open
5 open 5 close
6 open 6 open
7 open 7 open
8 open 8 open