16
RS-232↔RS-422 INTERFACE CONVERTERS
4.1.2 M
AKING AN
RS-422 C
ONNECTION TO AN
RJ-12 (IC630A
M
ODELS
)
OR
RJ-45 (IC631A M
ODELS
)
The IC630A and IC631A models of the Converter have
RJ-12 (“6-wire RJ-11”) female and RJ-45 female RS-422
connectors respectively. These are pinned in a USOC
style for a standard telco wiring environment, as shown
below:
IC630A: IC631A:
RJ-12 RJ-45 Lead/
Pin Pin Signal
1-----------N/C
1 ------------2 ---------GND*
2 ------------3 ---------RCV–
3 ------------4 ---------XMT+
4 ------------5 ---------XMT–
5 ------------6 ---------RCV+
6 ------------7 ---------GND*
8-----------N/C
*You don't have to connect the GND (ground) pins to anything;
ground connections are strictly optional, although you can connect
a cable shield to ground at one end only.
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