17
CHAPTER 4: Installation
4.1.1 T
WO
-W
IRE
C
ABLE
C
ONNECTION
V
IA
RJ-45
The RJ-45 jack on an Async/Sync Industrial Line Driver is prewired for a standard
telco wiring environment. To be sure you have the right wiring, use the table below
as a guide.
RJ-45
Signal
1 ..............NC
2 ..............GND†
3 ..............RCV
4 ..............XMT
5 ..............XMT
6 ..............RCV
7 ..............GND
8 ..............NC
†Connection to ground is optional.
Proper wiring of pairs between the two Line Drivers is as follows:
Signal
Pin#
Color*
Color
Pin#
Signal
XMT
4
Green ..............Green
4
XMT
XMT
5
Red ..................Red
5
XMT
*Standard color codes—yours may be different.
AT&T standard modular color codes are:
1 - Blue
2 - Orange
3 - Black
4 - Red
5 - Green
6 - Yellow
7 - Brown
8 - Slate
