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.