Specifications

CP302 IDE2 Module
ID 21112, Rev. 05 Page C - 15© PEP Modular Computers GmbH
The default configuration is RS232
RS422 and RS485 COM2 Termination
When the IDE2 module is using the onboard RS485 interface and is the last on the
RS422 or RS485 bus, then the RS422 or RS485 interface must provide termination
resistance. The purpose of jumpers J10 and J11 are to enable this line termination
resistor (120 R).
Table C-10: Jumper Setting to Configure COM2
Jumper
RS232
(default)
RS422 RS485 Disabled
J14 Open Closed Open Open
J12 Open Closed Closed Open
J13 Open Closed Closed Closed
J16 Open Open Closed Open
J18 Open Closed Open Open
Table C-11: Jumper Settings for RS422 RXD Termination (COM2)
Termination J10
ON Closed
OFF Open
Table C-12: Jumper Settings for RS422 TXD and RS485 Termination (COM2)
Termination J11
ON Closed
OFF Open
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