HYT Hytera TC320 series Wiring Data
Wildtalk Earpieces with this plug end with the part number -TC3
This wiring plan is for TC320 and similar radios only.
This is a special long reach plug. Longer than normal 2.5mm plugs
Common Ground for Mic, Speaker and PTT
Audio Out from the radio.
Microphone & PTT.
Ground via the Mic to Transmit
Standard Electret Mic input with radio providing phantom power to the Mic.
In some models if the PTT is permanently closed it allows the Mic to trigger the internal VOX system. The radio normally needs to be powered On with the PTT closed for this to take effect.
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