Cabletron Systems 2M46-04R - Manual (Page 35)

Connecting to the Network
2M46-04R/2M46-04RDC User’s Guide 3-11
3.5 CONNECTING TO THE NETWORK
This section provides the procedures for connecting UTP and fiber optic
segments from the network or other devices to the 2M46-04R.
Ports 1 and 2 support FE-100TX, FE-100FX, or FE-100F3 Fast Ethernet
Interface Modules. Refer to
Section 3.5.1 to make a UTP cable
connection to an optional FE-100TX in port slot 1 or 2. Refer to
Section 3.5.2 to make an SC fiber optic cable connection to an optional
FE-100FX or FE-100F3 in port slot 1 or 2.
Refer to the associated High Speed Interface Module user’s guide to make
connections to an optional High Speed Interface Module installed in the
HSIM slots.
3.5.1 Connecting a UTP Segment to the FE-100TX
An FE-100TX installed in port slot 1 and/or 2 has an internal crossover. If
you need a crossover, set the Fast Ethernet Interface Module crossover
switch shown in
Figure 3-9 to the crossed over position marked with an
X. If you do not need a crossover, set the Fast Ethernet Interface Module
crossover switch shown in
Figure 3-9 to the straight-through (not crossed
over) position, marked with an =.
NOTE
The 2M46-04RDC sounds an audible alarm if there is a polarity
reversal. If the alarm sounds, turn off the 48/60 Vdc power
source to that power supply. Then reverse the positive and
negative leads to the dc input power strip of that power supply.
Restore power from the 48/60 Vdc power source. Press the
on/off switch to on. If the alarm sounds again, press the power
switch to off and contact the Cabletron Systems Global Call
Center. Refer to
Section 1.5 .
NOTE
If the 2M46-04R is being installed in a network using
SmartTrunking, there are rules concerning the network cable
and port configurations that must be followed for
SmartTrunking to operate properly. Before connecting the
cables, refer to the Cabletron Systems
SmartTrunk User’s
Guide for the configuration information.