Point-To-Point Twisted-Pair Connection - Black Box Async 232 422/530 Manual

ASYNC 232↔422/530 CARD
4.3.3 P - -P
OINT TO
The six-position RJ-11 and eight-position RJ-45 jack options for the Async
232↔422/530 Card (always the two upper jacks on the rear interface card)
are prewired for a standard telco wiring environment. Connection of a 4-wire
twisted-pair circuit between two or more Async 232↔422/530 Cards requires
a crossover cable. Refer to the next page for more information.
Signal Pin No.
GND †
RCVB
XMTA
XMTB
RCVA
GND †
Signal Pin No.
GND †
RCVB
XMTA
XMTB
RCVA
GND †
In the pinouts above, "A" means positive and "B" means negative.
† Connection to ground is optional
‡ Standard color codes—yours may be different
23
T -P
OINT WISTED AIR
CROSSOVER CABLES
RJ-11
Color
‡
1 Blue ................White
2 Yellow.............Red
3 Green .............Black
4 Red.................Yellow
5 Black...............Green
6 White ..............Blue
RJ-45
Color
‡
2 Orange ...........Brown
3 Black...............Green
4 Red.................Yellow
5 Green .............Black
6 Yellow.............Red
7 Brown .............Orange
IMPORTANT!
C
ONNECTION
Color Pin No.
Color Pin No.
Signal
6 GND
4 XMTB
5 RCVA
2 RCVB
3 XMTA
1 GND
Signal
7 GND
5 XMTB
6 RCVA
3 RCVB
4 XMTA
2 GND
†
†
†
†