Signal Specification, Accessory Connectivity Unit (ACU)
General
All the values given below are between the respective connection and ground. If this is not the case, it is indicated in brackets.
NOTE:
It is important to connect the breakout box and check the ground connections before starting to measure.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds (s) |
| PWM = | Pulse-width modulation |
CONNECTOR J1 (BLACK)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
|---|---|---|---|---|
| #51 | #J1:1 | +30, power supply | U = Ubat | - |
| #52 | #J1:2 | - | - | - |
| #53 | #J1:3 | - | - | - |
| #54 | #J1:4 | LIN | U = U bat +/- 5 % | - |
| #55 | #J1:5 | Ground | U = 0 V | - |
| #56 | #J1:6 | - | - | - |
| #57 | #J1:7 | - | - | - |
| #58 | #J1:8 | - | - | - |
CONNECTOR J3 (GREY)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #31 | #J3:1 | USB, power supply + | U = 5 V | Touch panel |
| #32 | #J3:2 | USB, data - | U=approx. 0.16 V | Touch panel |
| #33 | #J3:3 | USB, data + | U=approx. 3.65 V | Touch panel |
| #34 | #J3:4 | USB, screen/ground- | U = 0 V | Touch panel |
CONNECTOR J6 (BLUE)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #1 | #J6:1 | GPS, antenna signal | U=approx. 5 V | - |
| #2 | #J6:2 | GPS, screen/ground | U = 0 V | - |
CONNECTOR J7 (BLUE)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #41 | #J7:1 | Analogue, line output right + | UAC = 0.8 V - 3.0 V (measure between #J7:1 and #J7:2) | The measurement value corresponds to a selected volume, 25 - 100 %. |
| #42 | #J7:2 | Analogue, line output right - | UAC = 0.8 V - 3.0 V (measure between #J7:1 and #J7:2) | The measurement value corresponds to a selected volume, 25 - 100 %. |
| #43 | #J7:3 | - | - | - |
| #44 | #J7:4 | Analogue, microphone screen/ground - | U = 0 V | - |
| #45 | #J7:5 | Analogue, line output left + | UAC = 0.8 V - 3.0 V (measure between #J7:5 and #J7:6) | The measurement value corresponds to a selected volume, 25 - 100 %. |
| #46 | #J7:6 | Analogue, line output left - | UAC = 0.8 V - 3.0 V (measure between #J7:5 and #J7:6) | The measurement value corresponds to a selected volume, 25 - 100 %. |
| #47 | #J7:7 | - | - | - |
| #48 | #J7:8 | Analogue, microphone, signal + | U=approx. 4 V | - |