PEP Modular Computers VMP2 - E. CP320-TR1 (Optional)

VMP2 CP320-TR1 (Optional)
ID 24855, Rev. 02 Page E - 3© 2002 PEP Modular Computers GmbH
E. CP320-TR1 (Optional)
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
customized CP321 on which the standard RJ45 connector is omitted (SER) and also
with this module which comes with a substitute RJ45 connector routed through optoiso-
lation 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 E-1: View of Underside of the
CP320-TR1 Module
Table E-1: Duplex Configuration
DUPLEX
FUNCTION
R13
SETTING
Full Open
Half Set
Table E-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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