User Manual

PD-1160 V1.1 Hardware Manual (Rev. 1.00 / 2012-JUN-12) 18
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4 Jumpers
Most settings of the board are done through the software. Nevertheless, two jumpers are available for
configuration.
RS485 bus
termination
CAN bus
termination
Figure 4.1 RS485 and CAN bus termination
4.1 RS485 Bus Termination
The board includes a 120 Ohm resistor for proper bus termination of the RS485 interface. When this
jumper is closed, the resistor will be placed between the two differential bus lines RS485+ and RS485-.
4.2 CAN Bus Termination
The board includes a 120 Ohm resistor for proper bus termination of the CAN interface. When this
jumper is closed, the resistor will be placed between the two differential bus lines CAN_H and CAN_L.