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M120 Component LEDs on the Craft Interface

 

Host Subsystem LEDs on the M120 Craft Interface

Each host subsystem has three LEDs, located in the middle of the craft interface, that indicate its status. The LED labeled 0 indicates the status of the Routing Engine and CB installed in slot CB0. The LED labeled 1 indicates the status of the Routing Engine and CB installed in slot CB1. Table 1 describes the functions of the host subsystem LEDs.

Table 1: M120 Host Subsystem LEDs

Label

Color

State

Description

RE MASTER

Green

On steadily

Routing Engine is the master.

RE STATUS

Green

On steadily

The Routing Engine is functioning.

Red

On steadily

The Routing Engine has failed.

CB STATUS

Green

On steadily

The board is online.

Blinking

The board is transitioning online/offline.

Red

On steadily

The CB has failed.

Ethernet Port LEDs on the Craft Interface

Two small LEDs on the bottom of the ETHERNET port indicate the connection in use: the LED lights yellow or green for a 10-Mbps or 100-Mbps connection, and the LED lights green when traffic is passing through the port. Related Documentation M Series RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports RJ-45 Connector Pinouts for the External Clock Ports

FEB LEDs on the M120 Craft Interface

Each FEB has two LEDs on the craft interface that indicate its status. The LEDs, labeled 0 through 5, are located on the lower right of the craft interface below the FEBS label. Table 2 describes the functions of the FEB LEDs.

Table 2: FEB LEDs on the M120 Craft Interface

Label

Color

State

Description

ACTIVE

Green

On steadily

FEB is active.

Blinking

FEB is transitioning online/offline.

STATUS

Green

On steadily

FEB is functioning normally.

Red

On steadily

FEB is not functioning normally.

FPC LEDs on the M120 Craft Interface

Each FPC slot has one LED that indicates its status. The FPC LEDs, labeled FPC0 through FPC5, are located along the bottom of the craft interface. Table 3 describes the functions of the FPC LEDs.

Table 3: M120 FPC LEDs

Label

Color

State

Description

STATUS

Red

On steadily

FPC has failed.

Green

On steadily

FPC is functioning normally.

Blinking

FPC is transitioning online/offline.

Power Supply LEDs on the M120 Craft Interface

Each power supply has one LED on the craft interface that indicates its status. The LEDs, labeled 0 and 1, are located on the lower left of the craft interface under the POWER label. Table 4 describes the functions of the power supply LEDs.

Table 4: Power Supply LEDs on the M120 Craft Interface

Label

Color

State

Description

STATUS

Red

On steadily

Power supply has failed.

Green

On steadily

Power supply is functioning normally.

External Clocking Inputs LEDs on the M120 Craft Interface

The EXT CLOCK ports are labeled A and B.

Two bi-color LEDs in the lower left and right corners of each port indicate port status. The LED on the lower left as you face the craft interface indicates whether an external clock source is present. The LED on the lower right as you face the craft interface indicates if there is a fault. Table 5 describes the external clock port LEDs,

Table 5: External Clock LEDs on the M120 Craft Interface

Label

Color

State

Description

A

Green

On steadily

External clock source is plugged into the port, physical signal is present.

Off

No external clock source is plugged into the port, no physical signal is present.

B

(Fault LED)

Yellow

On steadily

Fault condition; external reference clock frequency is out of the tolerance threshold deviation of 10 parts-per-million (PPM).

Off

External clock signal is validated or no external clock source is plugged into the port.