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SCHEMATICS, LAYOUTS AND PARTS LISTS
MX385 Interconnect
The following table lists the pin description for the MX385 interconnect.
J1
Pin # Description Pin # Description
1 Phn sidetone in 14 Phn sidetone out
2 Isol. Audio input 15 Speaker
3 Spare 16 Speaker
4 Aux audio input 17 Mic key
5 Aux audio input 18 Comm phn audio
6 Aux audio input 19 Sidetone out
7 Aux audio input 20 + 28v audio
8 Aux audio input 21 Comm phn audio
9 NAV audio input 22 + 28v comm
10 COMM audio input 23 + 28v nav
11 Ground 24 Ground
12 Spare 25 Spare
13 Mic audio input 26 Spare
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