| The Center connector is a male DB9, and
is the Auxillary connector. As such, it has connections
that are not needed for most operation. However if you
wish to develop a Mouse based, or parallel data based
EL/AZ interface, or do your own programming of the PICC
processor you will need to use the AUX connector. Contact
us via email if you
need further information on these activities. Pin 1 is an output that is in parallel with the TX LED on the board. It goes high when the F1EHN EME program indicates that it is your transmit period. This could be used to key your rig, start your keyer, etc. Pins 7 and 8 can be used with a hardware motor speed control device. They go to logic high during the speed time set in the control program. This is done only on motor startup. After the number of seconds specified, the lines go low again, allowing the motors to run at full speed. When tracking, normally the motors will run slow all the time because the new target position will be achieved before the speed time delay is reached. |
|---|
| 1 | Tx LED output (for F1EHN sequencing) |
| 2 | Txd out (for mouse) |
| 3 | Rxd in (for mouse) |
| 4 | Processor reset |
| 5 | Ground |
| 6 | Parallel Load out and Processor RB7 (for programming) |
| 7 | Parallel Clock out and Processor RB6 (for programming). Also speed control for Elevation. |
| 8 | Parallel Data in, Mouse clock in or out, and Processor RB3 (for debugging). Also speed control for Azimuth. |
| 9 | VCC out (+5 vdc) |