Preamp Audio Terminiation Board

The 81129 audio termination board is used
to connect sixteen single speakers to
multiple control panels and multiple
amplifiers.
The 81129 audio system, like the other
systems, uses the time interval data transfer
control. The addresses of the termination
boards are determined via the dip switch
setting on the 81129 board.
Part #81129, audio mother board, is a 16
station audio termination board with headers
provided for plug on audio level modules.
The 81129 board may be remotely located to
minimize conduit requirements and reduce
wire pulling.
The 16 stations terminated to this board
can/will be individually or group selected to
the audio buss terminals via the decoder and
the audio relays. Please refer to drawing
81129 for component and terminal locations.
Terminations are made to all 16 input
terminals as shown in the “Typical Speaker
Termination” drawing.