Configuration
3.1.8 Bus termination resistors
The iPC-I 165 has termination resistors for the CAN bus. By closing the solder
jumper JP8 (1st CAN) resp. JP7 (2nd CAN) these resistors are connected to the
CAN high and CAN low line. The value of the resistors is 120 Ohm. By default the
termination resistors are not connected.
3.1.9 Reset button and LED
The developer version of the iPC-I 165 is delivered with reset button SW2 and LED
D6. The LED is controlled by the microcontroller port P3.13 (LED on = bit set to
1).
3.2 Design of the CAN plugs
3.2.1 CAN
bus
connector
One (common) or two independent bus connectors according to ISO/IS 11898
can be installed on the iPC-I 165. The signals of the 1st bus connector are pro-
vided by the 9 pole sub-D plug/sleeve. If two independent bus connectors are
installed the signals for the CAN bus of the 2nd bus connector are provided by
the connector JP19. Both of the CAN interfaces can be optionally galvanic de-
coupled from the CAN bus.
As another option a version without any bus connector on the board is available.
In this case the signals are provided by separate connectors (X8 / X9 for the 1st
CAN, X10 / X11 for the 2nd CAN circuit).
As an option for iPC-I 165 a CAN protection circuit is available. The circuit keeps
disturbances and short spikes on CAN lines away from the electronics of the
iPC-I 165.
The first CAN line is connected to the 9 pole pin/sleeve X4/X5 via the plug con-
nectors X8 and X9. If both CAN controllers are installed and connected together
then they will be connected via these plug, too.
The second CAN line is connected to JP19 via the plug connectors X10 and X11.
If the ISO/IS 11898 bus interface is already installed on-board, the plug connec-
tors X8/X9 and X10/X11 are not present.
Copyright IXXAT Automation GmbH
iPC-I 165 - Manual, Version 2.3
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Summary of Contents for iPC-I 165
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