Omega B
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Terminal assignment of wiring harness plug for transmitter/receiver, digital network telephone
1 Serial data line to control switch 2 Unoccupied 3 Terminal 31, ground 4 Terminal 30, battery voltage 5 Terminal 15, ignition 6 Serial data line to hand receiver 7 Terminal 58d, instrument illumination 8 Serial data line to hand receiver 9 Radio - positive 10 Radio - mute switch 11 Serial data line to hand receiver 12 Serial data line to hand receiver 13 Unoccupied 14 Microphone for conference facility (-) 15 Microphone for conference facility (+) 16 Terminal 30, battery voltage 17 Terminal 31, ground 18 Serial data line to hand receiver 19 Loudspeaker for conference facility (+) 20 Shielding 21 Unoccupied 22 Unoccupied 23 Serial data line to hand receiver 24 Serial data line to hand receiver 25 Loudspeaker for conference facility (-)
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