Signal specification Road Traffic Information (RTI), new system
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
All the values given in the tables below are between the terminal stated in column 1 and ground. This applies unless otherwise indicated in brackets.
| U= | DC voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | % duty = | Duty cycle (pulse ratio) as a percentage (%) |
| Ubat= | Battery voltage |
Connector A is on the RTI control module.
Connector A
| Terminal | Signal type | Ignition on | Other |
|---|---|---|---|
| A1 | Power ground | Ulow | - |
| A2 | - | - | - |
| A3 | COMP/RGB | - | - |
| A4 | Synchronizing signal, display | Digital signal | - |
| A5 | - | - | - |
| A6 | Color signal (green), display | Alternating current when green color is displayed | - |
| A7 | Color signal (red), screen | Alternating current when red color is displayed | - |
| A8 | Amplifier, ON | U =5 V | - |
| A9 | - | - | - |
| A10 | Signal ground | U≈0 V | - |
| A11 | - | - | - |
| A12 | Signal ground | U≈0 V | - |
| A13 | - | - | - |
| A14 | - | - | - |
| A15 | Signal, remote control | - | - |
| A16 | - | - | - |
| A17 | Color signal (blue), screen | Alternating current when blue color is displayed | - |
| A18 | Signal ground, display | U≈0 V | - |
| A19 | - | - | - |
| A20 | - | - | - |
| A21 | Signal cable, amplifier | - | - |
| A22 | - | - | - |
| H | Shield ground, cable to the screen | Ulow | This is to shield the cable from external sources of interference. |
Connector B is on the RTI control module.
Connector B
| Terminal | Signal type | Ignition on / engine idling | Other |
|---|---|---|---|
| B1 | Ground, control module (measured against the battery negative terminal) | Ulow | - |
| B2 | - | - | - |
| B3 | - | - | - |
| B4 | - | - | - |
| B5 | 30-supply to the TMC receiver (FM receiver in Japan) | Ubat | - |
| B6 | Signal, vehicle speed (from the combined instrument panel) | U=0.5 V or Ubat (The voltage depends on the position of the front wheels - the position of the pulse wheel in relation to the sensor.) |
A pulsed signal between 0 V and Ubat with a variable frequency and fixed pulse ratio (% duty). |
| B7 | - | - | - |
| B8 | X-supply | Ubat | - |
Connector C is on the RTI control module.
Connector C
| Terminal | Signal type | Ignition on / engine idling | Other |
|---|---|---|---|
| C1 | - | - | - |
| C2 | - | - | - |
| C3 | Power supply | Ubat | - |
| C4 | Ground, control module (measured against the battery negative terminal) | Ulow | - |
| C5 | TMC receiver | Digital signal | - |
| C6 | TMC receiver | Digital signal | - |
| C7 | TMC receiver | Digital signal | - |
| C8 | X-supply | Ubat | - |
Connector D is on the TCM receiver.
Connector D
| Terminal | Signal type | Ignition on / engine idling | Other |
|---|---|---|---|
| D1 | - | - | - |
| D2 | Signal, control module | Digital signal | - |
| D3 | Signal, control module | Digital signal | - |
| D4 | Signal, control module | Digital signal | - |
| D5 | - | - | - |
| D6 | - | - | - |
| D7 | - | - | - |
| D8 | Power supply | Ubat | - |
| D9 | X-supply | Ubat | - |
| D10 | Signal ground | Ulow | - |
Connector E is on the intermediate stage.
Connector E
| Terminal | Signal type | Ignition on | Other |
|---|---|---|---|
| E1 | Power ground | Ulow | - |
| E2 | - | - | - |
| E3 | COMP/RGB | - | - |
| E4 | Synchronizing signal, display | Digital signal | - |
| E5 | - | - | |
| E6 | Color signal (green), display | Alternating current when green color is displayed | - |
| E7 | Color signal (red), screen | Alternating current when red color is displayed | - |
| E8 | Amplifier, ON | U =5 V | - |
| E9 | - | - | - |
| E10 | Signal ground | U≈0 V | - |
| E11 | - | - | - |
| E12 | Signal ground | U≈0 V | - |
| E13 | - | - | - |
| E14 | - | - | - |
| E15 | Signal, remote control | - | - |
| E16 | - | - | - |
| E17 | Color signal (blue), screen | Alternating current when blue color is displayed | - |
| E18 | Signal ground, display | U≈0 V | - |
| E19 | - | - | - |
| E20 | - | - | - |
| E21 | Signal cable, control module | - | - |
| E22 | - | - | - |
| H | Shield ground, cable to the screen | Ulow | This is to shield the cable from external sources of interference. |
Connector F is on the intermediate stage.
Connector F
| Terminal | Signal type | Ignition on | Other |
|---|---|---|---|
| F1 | Power supply | Ubat | - |
| F2 | X-supply | Ubat | - |
| F3 | Signal, vehicle speed (from the combined instrument panel) | U=0.5 V or Ubat (The voltage depends on the position of the front wheels - the position of the pulse wheel in relation to the sensor). |
- |
| F4 | Signal (+), from the audio unit | Alternating current when there is sound to the loudspeaker | - |
| F5 | Signal (+), to the loudspeaker | Alternating current when there is sound to the loudspeaker | - |
| F6 | - | - | - |
| F7 | COMP/RGB | - | - |
| F8 | Synchronizing signal, display | Digital signal | - |
| F9 | Color signal (green), display | Alternating current when green color is displayed | - |
| F10 | Signal ground | U≈0 V | - |
| F11 | Signal ground | U≈0 V | - |
| F12 | - | - | - |
| F13 | - | - | - |
| F14 | Signal (-), from the audio unit | Alternating current when there is sound to the loudspeaker | - |
| F15 | Signal (-), to the loudspeaker | Alternating current when there is sound to the loudspeaker | - |
| F16 | - | - | - |
| F17 | - | - | - |
| F18 | - | - | - |
| F19 | Signal, remote control | Digital signal | - |
| F20 | Color signal (blue), screen | Alternating current when blue color is displayed | - |
| F21 | Color signal (red), screen | Alternating current when red color is displayed | - |
| F22 | Shield ground, cable to the screen | Ulow | This is to shield the cable from external sources of interference. |
Connector G is on the intermediate stage.
Connector G
| Terminal | Signal type | Ignition on / engine idling | Other |
|---|---|---|---|
| G1 | - | - | - |
| G2 | - | - | - |
| G3 | - | - | - |
| G4 | Signal, vehicle speed (from the combined instrument panel) | U=0.5 V or Ubat (The voltage depends on the position of the front wheels - the position of the pulse wheel in relation to the sensor.) |
A pulsed signal between 0 V and Ubat with a variable frequency and fixed pulse ratio (% duty). |
| G5 | - | - | - |
| G6 | X-supply | Ubat | - |
| G7 | - | - | - |
| G8 | Power supply | Ubat | - |
| G9 | - | - | - |
| G10 | Signal ground | Ulow | - |
Connector H is on the display screen.
Connector H
| Terminal | Signal type | Ignition on | Other |
|---|---|---|---|
| H1 | Color signal (red), screen | Alternating current when red color is displayed | - |
| H2 | Color signal (green), display | Alternating current when red color is displayed | - |
| H3 | Color signal (blue), screen | Alternating current when red color is displayed | - |
| H4 | Synchronizing signal, display | Digital signal | - |
| H5 | Signal ground, display | U≈0 V | - |
| H6 | Signal, remote control | - | - |
| H7 | COMP/RGB | - | - |
| H8 | Shield ground, cable to the screen | Ulow | This is to shield the cable from external sources of interference. |
| H9 | Signal, video | Digital signal | - |
| H10 | Synchronizing signal, display | Digital signal | - |
| H11 | Power supply | Ubat | - |
| H12 | Power supply | Ubat | - |
| H13 | X-supply | Ubat | - |
| H14 | Signal, lighting | - | Adapts the light strength on the display screen. |
| H15 | Signal ground | Ulow | - |
| H16 | Signal ground | Ulow | - |
| H17 | Signal ground | Ulow | - |
| H18 | Signal, remote control | - | - |
| H19 | COMP/RGB | - | - |
| H20 | - | - | - |
| H21 | - | - | |
| H22 | - | - | - |