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Configuration
CP605
Page 4 - 6
© 2004 Kontron Modular Computers GmbH
ID 25095, Rev. 07
2509
5.07.UG.VC.041005/14220
9
4.1.7.2
PICMG 2.16 Rear I/O Configuration for Port 2
4.1.8
Serial Port Jumper and Resistor Setting
4.1.8.1
COM1 Jumper and Resistor Setting
The serial interfaces CON9 (COM1) and CON11 (COM2) on the CP605 may be configured for
either RS-232, RS-422 or RS-485 by setting solder jumpers.
The default setting is indicated by using italic bold.
RS-422 and RS-485 COM1 Termination
When the CP605 is using the onboard RS-485 interface and is the last device on the RS-422
or RS-485 bus, then the RS-422 or RS-485 interface must provide termination resistance. The
purpose of jumpers J1 and J2 is to enable this line termination resistor (120 R).
The default setting is indicated by using italic bold.
Table 4-8: PICMG 2.16 Rear I/O Configuration for Port 2
CONFIGURATION
FRONT I/O
REAR I/O
R91, R103
R121, R130
R142, R152
R163, R170
Closed
Open
R92, R105
R122, R131
R143, R153
R171, R176
Open
Closed
Note ...
The simultaneous operation of the Gigabit Ethernet Port 2 via the front and rear
I/O ports is not supported.
Table 4-9: Resistor Setting to Configure COM1
Resistor
RS-232
RS-422
RS-485
R137
Open
Closed
Closed
R126
Open
Open
Closed
R108
Closed
Closed
Open
R149
Open
Closed
Open
Note ...
The serial port may be disabled by the BIOS.