Checking Leds On The Nortel Ethernet Routing Switch 4500 Series; Front Panel Leds - Nortel 4500 Series Installation Manual

Connecting AC power to the back panel

Checking LEDs on the Nortel Ethernet Routing Switch 4500 Series

The figures and tables in the following sections describe the LEDs on the
Nortel Ethernet Routing Switch 4500 Series switches. The tables describe
LED operation for a switch that finishes the power-on self-test.

Front panel LEDs

"Nortel Ethernet Routing Switch 4548GT" (page 34)"Nortel Ethernet
Routing Switch 4548GT-PWR" (page 34),"Nortel Ethernet Routing Switch
4550T" (page 34)"Nortel Ethernet Routing Switch 4550T-PWR" (page 35)
and
the components on the front panels of the Nortel Ethernet Routing Switch
4500 Series switches. For detailed explanations of the states indicated by
each front panel LED type, see the following sections:
•
•
•
Copyright © 2007, Nortel Networks
.
Checking LEDs on the Nortel Ethernet Routing Switch 4500 Series 33
WARNING
Disconnecting the AC power cord is the only way to turn off AC
power to the Nortel Ethernet Routing Switch 4500 Series. Always
connect the AC power cord in a quickly and safely accessible
location in case of an emergency. For a translation of this
statement, see
"Nortel Ethernet Routing Switch 4526FX" (page
"Switch LED state indicators" (page 36)
"Port LED state indicators" (page 37)
"SFP transceiver Port LED state indicators" (page 37)
Nortel Ethernet Routing Switch 4500 Series
Installation Guide
NN47205-300 02.01 Standard
5.0 23 February 2007
"Translations of safety messages" (page 53).
35)diagrams illustrate
Nortel Networks Confidential