Connecting Utp Cables To 7H4382-25 - Enterasys Matrix 7H4382-25 Hardware Installation Manual

Connecting to the Network

Connecting UTP Cables to 7H4382-25

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 Figure
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.
3-12 Installation
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.
3‐4 and proceed as follows: