Cabletron Systems 2H253-25R manual Connecting to the Network

Connecting to the Network

2.Observe the LANVIEW LEDs. After a successful boot, the PWR LED turns ON (green). If the PWR LED is amber, there is no power redundancy. Check the power cord connections and the power source. If there are no problems with the power cord connections or power source and the PWR LED is still amber, contact Cabletron Systems for support. Refer to Section 1.2 for details.

3.4CONNECTING TO THE NETWORK

This section provides the procedures for connecting unshielded twisted pair (UTP) segments from the network or other devices to the 2H253-25R. To make connections to an optional HSIM or VHSIM installed in the HSIM/VHSIM slot of the 2H253-25R, refer to the associated user’s guide for the HSIM or VHSIM.

NOTE

If the 2H253-25R 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 the Cabletron Systems SmartTrunk User’s Guide for the configuration information.

Each of the two RJ21 connectors on the front panel have 12 UTP port connections. These ports (1 through 24) are 10/100 ports with internal crossovers. When connecting a workstation, use a straight-through cable. When connecting networking devices, such as another bridge, repeater, or router, use a crossover cable.

NOTE

If a port is connected to a 10-Mbps segment, Category 3 Unshielded Twisted Pair (UTP) cable is sufficient to use. However, if the segment is to carry 10- or 100-Mbps transmissions, use only Category 5 UTP cabling that has an impedance of between 85 and 111 ohms.

To connect an RJ21, proceed as follows:

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

2.If using an RJ21 straight connector, plug it into the appropriate RJ21 port as shown in Figure 3-6.

3-8Installation