Speaker Out Connector; Speaker In Connector; Radio Connector - AOR ARD9000MK2 Instruction Manual

(2) SPEAKER OUT Connector (3.5 mm mono jack)
If you wish to use your own external speaker, connect it to this jack.
Once connected, the speaker-microphone's audio is disabled.
(3) SPEAKER IN Connector (3.5 mm mono jack)
Connect to the transceiver's speaker output with the supplied cable.
(Input level: 0.5V – 5V p-p, input impedance: 8 Ohms)
Do not connect other audio sources like your radio's ACC-connector or
LINE-OUT as those audio levels are insufficient to drive the
ARD9000MK2.
(4) RADIO Connector (RADIO)
Using the supplied 8-pin connector, connect the ARD9000MK2 to your
transceiver's microphone input.
The optional pre-wired microphone cable is available from AOR for your
transceiver or you will need to prepare your own microphone connector
and cable for your transceiver.
Wire a shielded microphone cable according to the microphone
connector specifications of your radio (refer to your radio operator's
manual).
Below are the pin assignments of the RADIO connector.
Note: MIC GND and GND must not be connected together
in the ARD9000MK2 connector or RF feedback will result.
It is recommended that you connect a station ground wire to a
screw on the rear panel.
Pin # Signal
1 MIC GND Microphone ground
2 MIC OUT
3 PTT
4 PTT GND
5 NC
6 NC
7 GND
8 NC
9
Details
Microphone Output
PTT output
PTT ground
No connection
No connection
Ground
No connection