Connector
Connector front
The CANmod.router uses a DB9 (D-sub9) connector for supply and CAN-bus (CAN-P). It uses a mini-USB connector for configuration, streaming, and firmware update.
DB9 connector
Pin # |
DB9 connector |
|---|---|
1 |
Supply (5 V) |
2 |
CAN 1 L |
3 |
GND |
4 |
NC |
5 |
NC |
6 |
GND (optional) |
7 |
CAN 1 H |
8 |
NC |
9 |
Supply (5-24 V) |
Supply
The supplies are internally protected against reverse polarity and low-energy voltage spikes. Refer to the Electrical Specification for more details on the device supply.
The device can be powered through the DB9 connector using one of the below supply lines:
Supply (5-24 V), pin 9
Supply (5 V), pin 1
Warning
The Supply (5 V) pin tolerates 5 V only
Note
The CANmod.router can be directly powered from the CANedge 2nd port 5 V output.
GND
All GND (ground) pins are connected internally.
CAN L/H
The CAN L/H should be connected to the CAN-bus.
Warning
CAN-bus requires no common reference (ground). However, it is recommended that GND (ground) is carried along with CAN-L/H to prevent that the common-mode voltage is exceeded (resulting in transceiver damage)
USB
The USB can be connected to a PC via a mini-USB cable. For more information see USB.
Connector back
The four secondary CAN-buses (S1-S4) are connected through a shared DB25 connector. The buses (CAN-H, CAN-L and GND) are galvanically isolated[1].
Warning
The DB25 connector shield is connected to the primary supply ground through the device enclosure. Avoid connecting this to the isolated secondary busses.
The pins of each CAN-bus are grouped as indicated by the dashed lines. Yellow: CAN-H Green: CAN-L Black: Isolated GND (ground)
Channel |
Function |
Connector pin |
|---|---|---|
1 |
CAN-H |
12 |
CAN-L |
13 |
|
Isolated GND |
25 |
|
2 |
CAN-H |
22 |
CAN-L |
21 |
|
Isolated GND |
9 |
|
3 |
CAN-H |
18 |
CAN-L |
17 |
|
Isolated GND |
5 |
|
4 |
CAN-H |
1 |
CAN-L |
2 |
|
Isolated GND |
14 |