18
RS-232
↔
RS-422 INTERFACE CONVERTERS
IC631A: RJ-45
Lead/
Pin
Pin
Pin
Pin
Lead/
Signal* No.*
Color†
Color†
No.* Signal*
XMT+
4
Red ................................Yellow
6
RCV+
XMT–
5
Green ...............................Black
3
RCV–
RCV+
6
Yellow ................................Red
4
XMT+
RCV–
3
Black ...............................Green
5
XMT–
*If the cable is shielded, you can attach
one end
of the shield to GND (ground, Pin 2 or
Pin 7). Do
not
run wire from a ground at one end of the cable to a ground at the other
end; the Converter does not reference ground for RS-422 data transmission and you
could create an electrical “ground loop” that could severely damage your equipment.
Also, remember that Pins 1 and 8 are not connected to anything inside the Converter,
so do not connect any wires to them.
†These are standard AT&T
®
color codes. The RJ-45 connectors on your cables or
other equipment might have different-colored pins.
1
2
3
4
5
6
7
8
Blue*
Orange*
Black
Red
Green
Yellow
Brown*
Slate*
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Summary of Contents for IC470A
Page 40: ...NOTES ...
