Alfa Radio Ltd.
11211 - 154 St. Edmonton, Alberta, Canada T5M 1X8
1.3.3 Back MD-01
1.3.4 Back MD-02
1.
Plug-in socket for Ground Connection (the remaining PINs are not provided).
2.
Rotator motor supply input (FUSE at 40 Amps Max). On older units this
connector may be labeled Input 1
3.
Planned future location for connecting modules, e.g. CAN, RS-485, RS-422 or
analog inputs.
4.
Sensor Input for systems with one or two Hall effect sensors.
5.
Power Supply input for Controller Electronics (FUSE 2A). On older units
this connector may be labeled Input 2
6.
Supply outputs for Elevation Rotator. Pins 1 and 2 are connected to the
Rotator motor and pins 3 and 4 are connected to the mechanical sensor on
RAU, RAK, Real and RAS rotators. The motor output is FUSED at 20 Amps
maximum depending on the motor used.
7.
Supply outputs for Azimuth Rotator. Pins 1 and 2 are connected to the
Rotator motor and pins 3 and 4 are connected to the mechanical sensor in
RAU, RAK, Real and RAS rotators. The Motor output is FUSED at 20 Amps
maximum depending on the motor used.
8.
Switch used to update the controller software (FIRMWARE). To update the
software use COM 0 (item 12) with the switch in the OFF position. Normal
mode of the controller is when the switch is in the PR position.
9.
Universal output – Future use to connect external relays. When implemented,
the controller will have the function of an antenna change-over switch.
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Alfa Radio Ltd. 2022
