Enterasys Networks 2G4082-25, 9034310-01 manual Connecting to the Network, Connecting UTP Cables

Connecting to the Network

Figure 3-2 Installing Module into N3, N1, or N5 Chassis (N3 shown)

4Metal back panel

Connecting to the Network

This section provides the procedures for connecting unshielded twisted pair (UTP) segments from the network or other devices to the 2G4082‐25 (“Connecting UTP Cables” on page 3‐6).

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

Connecting UTP Cables

The fixed RJ45 front panel connections of the 2G4082‐25 are 10/100/1000 Mbps ports. These 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.

Note: All RJ45 front panel ports on the 2G4082-25 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.

3-6 Installation