Batboard

My two bits worth:
The installation manual #025-9227 Table 3, Page 17
Channel card configuration:
"Table 3 Option configurations"
Channel Cross Muting (CCM) Each card has two channels:
Chan A CCM disabled Switch SW2-off, Enabled SW-2 ON.
Chan B CCM disabled SW6-off, enabled SW6-ON.
The DIP switch is on top of the channel card.

I have noted that some times it is necessary to set the input level some what hot or the audio may be momentarily muted during very quiet transmissions.
Zetron manual numbers:
Operator's manual 025-9226
Installation manual 025-9227
Service manual 025-9228
Programming manual 025-9229

If I recall correctly, you will have to wire the cross mute to function. There is a cross channel mute out per channel and a cross mute input per channel. The 11th terminal on the punch block is the output, and the 12th terminal is the input. The pattern repeats down the block for the 4 channels. I can provide the pinouts if you want to drop me a line.


Tim