XVME-682 Manual
October, 1989
PIN
SIGNALPIN
SIGNAL
1
CD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
PIN
SIGNALPIN
SIGNAL
1
TXD-
6
RXD-
2
TXD+ 7
RXD+
3
RTS-
8
CTS+
4
RTS+ 9
CTS-
5
GND
2.5 XVME-682 CPU MODULE PINOUT DESCRIPTIONS
The following sections illustrate the signals passed by the ports and connectors on the XVME-
682 CPU module.
2.5.1 COM1 and COM2
COM1 is labelled JK4 on the front panel, and COM2 is labelled as JK3. Both are 9 pin D-
type connectors. COM1 is a dedicated RS-232 standard port, while COM2 can be configured
to use either the RS-232 or RS-422 standards. The factory setting is both to RS-232. The RS-
232 and RS-422 pinouts are given below.
Table 2-12 Serial RS-232
Table 2-13 Serial RS-422
Some earlier versions of the XVME-682 (Rev. A) can only have COM2 set to RS-232.
2-13
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Содержание XVME-682
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