Nortel Networks 2500 Series manual Auto-MDI/MDI-X, LED display panel

Hardware components of the Ethernet Routing Switch 2500 Series 27

The 10BASE-T/100BASE-TX switch ports also support half- and full-duplex mode operation.

The 10BASE-T/100BASE-TX RJ-45 switch ports can connect to 10 Mb/s or 100 Mb/s Ethernet segments or nodes.

ATTENTION

Use only Category 5 copper Unshielded Twisted Pair (UTP) cable connections when connecting 10BASE-T/100BASE-TX ports.

Auto-MDI/MDI-X

The 10/100BASE-TX port connectors support auto-MDI/MDI-X.

Typical MDI-X ports connect over straight-through cables to the Network Interface Card (NIC) in a node or server, similar to a conventional Ethernet repeater hub. However, with the auto-MDI/MDI-X feature, you can still use straight-through cables while connecting to an Ethernet hub or switch.

The auto-MDI/MDI-X feature is dependent on the autonegotiation feature. If autonegotiation is enabled on a port, the auto-MDI/MDI-X feature is automatically enabled on the port as well. If autonegotiation is disabled on a port, then the port operates as a standard MDI-X port.

Power over Ethernet on Ethernet Routing Switch 2526T-PWR and 2550T-PWR

The Ethernet Routing Switch 2526T-PWR and 2550T-PWR provide IEEE 802.3af-compliant power over the PoE-labeled front-panel RJ-45 ports. The switches provide power discovery and power management on each port basis. You can use the PoE ports to provide power to network appliances, such as IP Phones, wireless access points, and video devices.

You can enable or disable power to individual ports. For information about configuring PoE, see "Power over Ethernet for the Ethernet Routing Switch 2526T-PWR and 2550T-PWR" (page 157).

LED display panel

Figure 6 "LED display panel" (page 28) shows the LED display panel of the Ethernet Routing Switch 2500 Series. See Table 2 "Ethernet Routing Switch 2500 Series LED descriptions" (page 28) for a description of the LEDs.

Nortel Ethernet Routing Switch 2500 Series

Overview — System Configuration

NN47215-500 (323162-B) 02.02 Standard

4.1 19 November 2007

Copyright © 2007, Nortel Networks