Connection Diagram and Pinouts
External-adapter installations require a vehicle-side pigtail, a protocol-specific vehicle network adapter, and the router-side serial connection described for each product. R920 and R980 installations additionally require a compatible DB9/RS232-to-USB serial adapter (PN: 170983-000). R2400 installations use the onboard GPIO (CAN_H, CAN_L, and GND) pins and therefore do not require an external vehicle network adapter or serial-to-USB adapter.
Vehicle Port | Vehicle Connection Cable | SIMMA[a] Protocol Adapter | Router Adapter Cable | Router | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OBD-II | DB15 to OBD-II 16-pin cable | VNA-232-ER, OBDII | 15' RS-232 Cable | IBR1700 R1900 | |||||||||||||||||||||||||||||||||||||||||||||
15' RS-232 Cable + USB to RS232 Extensibility Cable (PN#: 170873-000) | R920 R980 | ||||||||||||||||||||||||||||||||||||||||||||||||
J1939 | One of the following depending on vehicle:
| VNA-232-ER, J1939 | 15' RS-232 Cable | IBR1700 R1900 | |||||||||||||||||||||||||||||||||||||||||||||
15' RS-232 Cable + USB to RS232 Extensibility Cable (PN#: 170873-000) | R920 R980 | ||||||||||||||||||||||||||||||||||||||||||||||||
[a] SIMMA protocol adapters available via third party at www.simmasoftware.com. Not compatible with IBR9x0 routers. | |||||||||||||||||||||||||||||||||||||||||||||||||
Connecting R2400 to OBD-II/J1939 Vehicles
Connecting OBD-II or J1393 vehicles to an R2400 does not need a protocol adapter due to native support. Splice an open OBD-II or J1939 cable to GPIO Cable, 2×10, 2M (PN#: 170934-000) where CAN_H, CAN_L, and ground are connected.
When using B+B Smartworx cables on OBD-II vehicles, connect as follows:
OBD-II to IBR1700
OBD-II to IBR9x0
OBD-II to R1900
OBD-II to R920
OBD-II to R980
Using the provided pin numbering of the RS-232, the following tables and diagrams contain the pinout of each interface:
RS-232 Pin Numbering
IBR1700, R1900, and IBR9x0 (w/ COR Serial Cable) Pin Descriptions
Pin | Name | Direction (relative to router) |
|---|---|---|
1 | Not Connected | N/A |
2 | Transmit (TX) | Out |
3 | Receive (RX) | In |
4 | Not Connected | N/A |
5 | Ground | N/A |
6 | Not Connected | N/A |
7 | Clear to Send (CTS) | In |
8 | Request to Send (RTS) | Out |
9 | Not Connected | N/A |
RS-232 Cable Schematic
USB to RS232 Extensibility Cable (RS232 Connector) Pin Descriptions
Diagram | Pin | Function | Details |
|---|---|---|---|
 | 1 | Not Connected | |
2 | Transmit (TX) | Output | |
3 | Receive (RX) | Input | |
4 | Data Set Ready (DSR) | Input | |
5 | Ground (GND) | N/A | |
6 | Data Terminal Ready (DTR) | Output | |
7 | Clear to Send (CTS) | Input | |
8 | Request to Send (RTS) | Output | |
9 | Not Connected |
The image above shows the RS232 connector looking into the socket. Extending from the USB side of the extensibility cable is not recommended due to the specialized screw lock on the USB connector.