AL G8
All external units are connected to the main unit (interface box) by RJ25 connector - marked as S. Control wires are using connector RJ45 - connector marked as C.
RJ25 pinout - marked as S
| Pin number | Pin functionality |
|---|---|
| 1 | Ground |
| 2 | Output of pulses for transmitter(5V CMOS) |
| 3 | Park assistant output (5V CMOS) |
| 4 | Supply +30V |
| 5 | Input of receiver pulses (5V CMOS) |
| 6 | Ground |
All pins (except pin5) are connected paralelly in the interface box. Pins 5 are connected via Schottky - diodes SS16.
All outputs are lacking any overcurrent/overvoltage protection.
RJ45 pinout - marked as C
| Pin number | Pin functionlity |
|---|---|
| 1, 2 | Output for dual-color LED |
| 3 | Ground |
| 4 | MUTE output |
| 5 | Push-button (switched to ground) |
| 6 | Beeper (second input of beeper goes to ground) |
| 7, 8 | Power supply switch |
Internal pictures of the interface box
In the left part there is power supply filter and step-up convertor (to 30V using MC33063) for external units. Main microcontroler PIC16F648A running at 20MHz is in the middle.
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