connect a pcan-usb to a low speed can network

[barry]

Is it possible to connect a pcan-usb to a low speed can network ..
or do you need to use a PCAN-TJA1054 bus tranceiver ?

It seems the data comming from the ecu is viewable in pcan-view when no termination resistors are used.

[PEAK-Support]

we reccomend to use a LowSpeed CAN Adapter with the TJA1054 CAN Transceiver inside. The physical Voltage on a LowSpeed CAN is different to HighSpeed CAN Transceivers. Also the type of Termination is different.

The major difference is Termination Resistance. High Speed CAN requires 120 Ohm termination on the bus while Low Speed CAN devices are self terminated (Every Device has Termination). Termination Resistors are to avoid Standing waves which would be significant in case of High Speed and Longer Bus lengths which is not significant in case of Low Speed CAN. Another Difference is High Speed CAN won't work if there is problem in Wiring but Low Speed CAN can work on Asynchronous network as it is terminated/grounded at every node. That's why Low Speed CAN is called as "Fault Tolerant CAN.

Source: http://electronics.stackexchange.com/questions/95900/controller-area-network-can-high-speed-and-low-speed