Expansion Card Interface - XIEGU G90 Operation Manual

CE-19 expansion adapter interface diagram
PTT CON PTT signal / BAND signal output port. The PTT signal of this port is completely isolated from the host,
providing a "low level" trigger associated with the host.
TO XPA125B XPA12B dedicated interface.
AF CON Audio input/output port. The audio output from this port is directly output after demodulation, no
filter.
DATA CON Data output port in NFM mode. The two terminals of this port are in parallel relationship and both
output the same signal.
appendix 2
Operating
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