Connecting to the Network
DLEHF-MA User’s Guide
3-5
3.5
CONNECTING TO THE NETWORK
This section provides the procedures for connecting fiber optic segments
from the network or other devices to the modules.
Ports 1 and 2 of the DLEHF-MA support DELTX-UI, DELFX-UI, or
DELF3-UI Fast Ethernet Interface Modules. The DELTX-UI has an RJ45
connector for a twisted pair cable connection. The DELFX-UI has an SC
style connector for a multimode fiber optic cable connection. The
DELF3-UI has an SC style connector for a single mode fiber optic cable
connection.
Refer to Section 3.5.1 to make a twisted pair connection to a DELTX-UI.
Refer to Section 3.5.2 to make a fiber optic connection to a DELFX-UI or
a DELF3-UI.
3.5.1
Connecting a Twisted Pair Segment to the
DELTX-UI
A DELTX-UI installed in port 1 and/or 2 has an internal crossover switch.
If you need a crossover, set the Fast Ethernet Interface Module crossover
switch shown in Figure 3-2 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 3-2 to the not crossed over position,
marked with an =.
If the DLEHF-MA 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
Section 5.19, for the configuration information.
The DELTX-UI supports Category 5 UTP cabling with an
impedance between 85 and 111 ohms only.
An odd number of crossovers (preferably one) must be
maintained between like devices so that the transmit port of
one device is connected to the receive port of the other device
and vice versa.
