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CHAPTER 3: Installation
Proper crossing of pairs between the two modems is
as follows:
Signal
Pin #
Color**
Color
Pin #
Signal
GND*
1
Blue .................White
6
GND*
RCV-
2
Yellow ..............Red
4
XMT-
XMT+
3
Green...............Black
5
RCV+
XMT-
4
Red ..................Yellow
2
RCV-
RCV+
5
Black ................Green
3
XMT+
GND
6
White ...............Blue
1
GND*
* Connection to ground is optional.
** These are standard AT&T color codes. Your colors may be
different.
If your RS-232 application requires you to connect
two pairs of bar wires to the Driver, you will need to
open the case to access the terminal blocks. The
following instructions tell you how to open the case,
connect the bar wires to the terminal block, and
fasten the strain relief in place, so that the wires
won’t pull loose.
