Cisco Systems OL-16447-01 manual Ethernet Management Port LED, 1-10, AC-Power-Supply LEDs

Chapter 1 Product Overview

Front Panel

When an AC-power-supply module is installed, the AC 1 and AC 2 LEDs show which power supply is on (see Figure 1-7).

Table 1-5	AC-Power-Supply LEDs
Color	System Status
Off	AC-power-supply module is not installed.
Green	AC-power-supply module is installed, and AC-power input (1 or 2) is present.
Amber	AC-power-supply module is installed, and AC-power input (1 or 2) is not present.

When DC-power-supply modules are installed, the DC A and DC B LEDs show which power supply is on (see Figure 1-7).

Table 1-6	DC-Power-Supply LEDs
Color	System Status
Off	DC-power-supply module is not installed. A DC-power-supply module is installed, and a
	single DC-power input (A or B) is used and the CLI is configured to allow a single
	DC-input feed.
Green	DC-power-supply module is installed, and the DC-power input (A or B) is present and is
	in the operating range.
Amber	DC-power-supply module is installed, and the DC-power input (A or B) is not present or
	is not in the operating range.

Ethernet Management Port LED

Table 1-7	Ethernet Management Port LED
Color		System Status
Off		No link, or port was administratively shut down.
Green		Link present but not sending or receiving data.
Blinking green		Activity. Port is sending or receiving data.
Alternating		Link fault. Error frames can affect connectivity, and errors such as excessive
green/amber		collisions, CRC1 errors, and alignment and jabber errors2 are monitored for a
		link-fault indication.

1.CRC = cyclic redundancy check.

2.Jabber errors occur when data packets exceed the prescribed lengths.

	Cisco ME 3400E Ethernet Access Switch Hardware Installation Guide
1-10	OL-16447-01