16
MODULAR FIBER CAMPUS DRIVER, MFCD PLUS
4.2.4 R
E
-
CONFIGURING THE
X.21 M
ODULE
The serial port on the X.21 Module is wired by default as a DCE, but may be
switched to a DTE. This is done by reversing the orientation of the DCE/DTE
strap.
To reverse DCE/DTE orientation, remove the module according to the
instructions in
Section 4.2.1
. The DCE/DTE strap is located on the bottom side of
the module’s PC board. The arrows on the top of the strap indicate the
configuration of the X.21 port (for example, if the DCE arrows are pointing
toward the DB15 connector, the X.21 port is wired as a DCE). Reverse the
DCE/DTE orientation by pulling the strap out of its socket, rotating it 180°, then
plugging the strap back into the socket. You will see that the DCE/DTE arrows
now point in the opposite directions, showing the new configuration of the X.21
port. Reinstall the module according to the instructions in
Section 4.2.1
.
4.3 Power Connection
The Fiber Campus Driver comes with a universal-interface AC power supply, which
operates in environments ranging from 85 to 256 VAC, with no re-configuration
necessary.
C
ONNECTING TO AN
AC P
OWER
S
OURCE
The universal AC power supply is equipped with a male IEC-320 power
connection. A domestic (US) power supply cord is supplied with the unit at no
extra charge. To connect the universal power supply, follow these steps:
1. Attach the power cord (supplied) to the shrouded male IEC-320 connector
on the rear of the Campus Driver.
2. Plug the power cord into a nearby AC power outlet.
3. Turn the rear power switch ON.
