# Fast Ethernet LEDs

In addition to the Enabled LED, a fast Ethernet port adapter has two other LEDs, an MII LED and either an RJ-45 LED or a fiber LED. Of these two, the one that is lit in the CiscoView interface indicates which connector is configured as the active Ethernet port.

Note: If the FE card is shut down (in the shutdown state), the physical LED on the card does not change to reflect active status until the no shutdown command has been used to change the card to an active state.

## Enabled LED

When the Enabled LED is lit, it means the card

Is powered up

Is correctly connected to the backplane

Has a valid version of microcode successfully downloaded to it

Is recognized by the bus

## LEDs for BRI Ports

A BRI port on a PA-4B-U or PA-8B-S/T port adapter has two LEDs, one for each of the B channels.

Green | Active
Black | Any other state

## PHY LEDs

If one port on an FDDI station shuts down or fails, the other port automatically "wraps" the signal back to the station to which it is connected so as to complete the transmission around the ring in the other direction.

There are two PHY LEDs on an FDDI card, one for port A and one for port B.

If both LEDs are green, then both FDDI ports are part of an active ring.

If only one LED is green, that port is wrapped and the other (with the black LED) is the one that is down.

If both LEDs are black, the FDDI station is not connected.

## PA-4R-DTR LEDs

There are four additional LEDs on the PA-4R-DTR:

LED | Meaning if lit (Green)
INS | Interface is inserted into the ring or connected to another full-duplex token ring station.
4/16 Mbps | Interface is operating at 16 Megabits per second. If not lit, the interface is operating at 4 Megabits per second.

## CPA-LEDs

There are four additional LEDs on the ECPA and PCPA:

LED | Meaning if lit (Green)
Present | The presence of the channel path interface type. For ECPA, when this LED is lit it indicates the presence of an ESCON Channel Port Adapter. For PCPA, when this LED is lit it indicates the presence of a Parallel Channel Port Adapter (bus and tag).
Loaded | The microcode for the daughterboard has been successfully loaded and is executing.
Signal | Light has been seen on the fiber and synchronization has been established. (ECPA) Operational out has been sensed. (PCPA).
Online | A path has been established with at least one channel. (ECPA) PCA is online to the channel and it will response to at least one device address. (PCPA)