Installation Guide

Document Version: 11 27 | P a g e

Setting 3

Jumpers 3-4 and 7-8 inserted

 120 Ω Termination is

under software control

 "Listen Only" mode

When SW1 jumpers 3-4 and 7-8 are inserted, both CAN1 and CAN2

interfaces are set for:

- 120 Ω termination is under software control (i.e. the software can

switch the 120 Ω resistor in or out of the circuit).

- "Listen Only" mode (i.e. the software cannot transmit any messages).

Setting 4

Jumpers 1-2 and 5-6 inserted

 NOT Terminated (120

Ω)

 RD/WR or "Listen Only"

mode is under software

control

When SW1 jumpers 1-2 and 5-6 are inserted, both CAN1 and CAN2

interfaces are set for:

- RD/WR or "Listen Only" mode is under software control (i.e. the

software can transmit messages on the CAN bus).

- 120 Ω termination is disabled (the 120 Ω termination resistor is

removed from the circuit and cannot be switched in by software).