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 |
