Product manual

EAP01 - Product Manual
7.6 PTT Function Test
Measurement of the resistance between PTT+ and PTT– may not be possible unless the unit is powered,
depending on the Build Standard version.
The following procedure can be used to test the PTT function regardless of Build Standard version.
Testing the PTT Function:
1. Measure the voltage between PTT+ and PTT–.
2. Make sure that the microphone is powered, and polarity of PTT connections is correct.
PTT+ to PTT– Voltage Ranges:
PTT INACTIVE = 2V8 to 3V2
PTT ACTIVE = 0V4 to 0V5
Issue: 02 complete, approved
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