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CP321
CP320-TR1 (Optional)
ID 24977, Rev. 02
© 2003 Kontron Modular Computers GmbH
Page B - 3
B.
CP320-TR1 (Optional)
B.1
Board Description
On the CP321 it is possible to utilize a transition module which provides optoisolated RS485
functionality either half or full duplex where half duplex is the default.
Users who require a CP321 with an opto-isolated serial interface are supplied with a custom-
ized CP321 on which the standard RJ45 connector is omitted (SER) and also with this module
which comes with a substitute RJ45 connector routed through optoisolation circuitry on the
module.
The module has been designed so that it does not increase the board width, which remains
unchanged at 4HP with the module in place.
Figure B-1: View of Underside of the
CP320-TR1 Module
Table B-1: Duplex Configuration
DUPLEX
FUNCTION
R13
SETTING
Full
Open
Half
Set
Table B-2: Serial Port Pinout
RS485
PIN
SIGNAL
HALF-DUPLEX
FULL-DUPLEX
1N/C
-RxD
2N/C
N/C
3GND
GND
4+TRXD
-TxD
5N/C
N/C
6N/C
+RxD
7-TRXD
+TxD
8N/C
N/C
CON6
RJ45
(Serial)
J1
J2
CON3
R13
Refer to the Functional
Description chapter for
the pinout of CON3.
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