Connecting To The Network; Connecting Utp Cables To 7H4202-72 - Enterasys Matrix 7H4202-72 Hardware Installation Manual

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Connecting to the Network

"Connecting UTP Cables to 7H4202‐72" on page 3‐11 provides the procedures for

connecting unshielded twisted pair (UTP) segments from the network or other devices.

The fixed RJ45 front panel connections of the 7H4202‐72 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 7H4202‐72 is used as the example to connect a twisted pair segment

to the module. Refer to Figure

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

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

Enterasys Matrix DFE-Platinum Series Configuration Guide for the configuration

information. For details on how to obtain manuals, refer to

page xiv.

Note: All RJ45 front panel ports on the 7H4202-72 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.

3‐4 and proceed as follows:

DFE-Platinum Series Hardware Installation Guide 3-11

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