Installation Guide

Document Version: 11 26 | P a g e

Setting 1 (FACTORY

DEFAULT)

All Jumpers inserted

 120 Ω Termination

under software control

 RD/WR or "Listen Only"

mode is under software

control

When all SW1 jumpers 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).

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

software can transmit messages on the CAN bus).

Setting 2

All jumpers removed

 NOT Terminated (120

Ω)

"Listen Only" mode

When all SW1 jumpers are removed, both CAN1 and CAN2 interfaces

are set for:

- 120 Ω termination is disabled (i.e. the 120 Ω termination resistor is

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

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