Manual Interlock-IP – User guide
Page 5
1.1 Sockets R1 – R5: DB9 connection for Radio interface
The interlock supports up to 5 radios, two of which (R4 and R5) can be configured as
Inband.
Each one of these radios has to be connected via the corresponding DB9 socket.
Here is the rear view of the device:
Rear view of the interlock
1.2 DB9 pinout
The signals available in this connector are as follows:
•
Pin-1: Ground/ Earth
•
Pin-2: Signal Inhibit (OUT)
•
Pin-3 Connection with Pin 8, idle through a relay
•
Pin-4 Not used
•
Pin-5 Not used
•
Pin-6: Radio PTT entry (IN)
•
Pin-7: Auxiliar output signal. Choose between 5 or 12Vdc using JP-A.
•
Pin-8: Connected to pin 3, idle through a relay
•
Pin-9: Not used
The radios which have a Signal Inhibit (Yaesu, K3) only use 3 signals: Ground,
Inhibit, and PTT.