Enterasys Platinum Distributed Forwarding Engine 7H4382-25 Benutzerhandbuch

Connecting to the Network

3-16 Installation

on page 3-16 provides the procedures for 

connecting unshielded twisted pair (UTP) segments from the network or other devices. 
For connections to Mini-GBIC ports on the 7G-6MGBIC, refer to 

The fixed RJ45 front panel connections of the 7H4382-25 are 10/100 Mbps ports. The ports 
have internal crossovers, and also support automatic-polarity sensing when configured 
for automatic-negotiation.

If automatic-negotiation is not activated on a port, use a straight-through cable when 
connecting a workstation to the port. When connecting a networking device to the port, 
such as a bridge, repeater, or router, use a crossover cable.

If a port is set for auto-negotiation, automatic-polarity sensing is also activated. 
Automatic-polarity sensing eliminates the need for a crossover cable, regardless if the 
connection is to another network device or a workstation.

In this procedure, the 7H4382-25 is used as the example to connect a twisted pair segment 
to the module. Refer to 

1.

Ensure that the device connected to the other end of the segment is powered ON.

2.

Connect the twisted pair segment to the module by inserting the RJ45 connector on 
the twisted pair segment into the appropriate RJ45 port connector. 

Note: If the DFE-Platinum module is being installed in a network using Link Aggregation, 
there are rules concerning the network cable and port configurations that must be followed 
for Link Aggregation to operate properly. Before connecting the cables, refer to the Matrix 
DFE-Platinum Series Configuration Guide for the configuration information. For details on 
how to obtain manuals, refer to the “

 

in 

. 

Note: All RJ45 front panel ports on the 7H4382-25

 

support Category 5 Unshielded Twisted 

Pair (UTP) cabling with an impedance between 85 and 111 ohms. Category 3 cable may 
be used if the connection is going to be used only for 10 Mbps.