78-5296-02 10/02/98

 

Hardware Description 1

 

Table 1-11

SLC 8DMT LEDs

 

 

 

 

 

LED

Color

Condition Indicated

 

 

 

 

 

POWER

Green

The SLC is receiving power.

 

 

 

 

 

READY

Green

The SLC is experiencing no problems.

 

 

Yellow

At least one port on the SLC is in line test mode.

 

 

Off

The SLC is not communicating with the MPC. This is the case when

 

 

 

• The SLC is initializing.

 

 

 

• The SLC has a hardware problem. If the READY LED is off for an extended

 

 

 

period when the POWER LED is on, see the Cisco 6200 User Guide for

 

 

 

instructions on troubleshooting the SLC.

 

 

 

 

 

PRIME

Green

The SLC is using the primary (A) bus to move information across the backplane.

 

 

 

 

 

SEC

Green

The SLC is using the secondary (B) bus to move information across the backplane.

 

 

 

(Redundant systems only.)

 

 

 

 

 

Ports 0 to 7

Green

The following conditions exist:

 

 

 

• The port is receiving good signal levels (no loss of signal, or LOS) from the CPE.

 

 

 

• The port has frame alignment with the far end CPE (no loss of frame (LOF) or

 

 

 

severely errored frames (SEC)).

 

 

 

• The SLC has HEC alignment in the upstream direction.

 

 

 

• The modems on both sides have negotiated the loop rates.

 

 

 

The port LEDs remain lit (green) in the presence of occasional minor alarms.

 

 

 

 

 

 

Flashing

The port is enabled and is trying to communicate with the remote CPE. (That is, the

 

 

green

port is training or preparing to train.)

 

 

 

 

 

 

Off

One of the following conditions exists:

 

 

 

• The port is experiencing an intrusive DMT hardware test.

 

 

 

• The port is disabled or is not configured.

 

 

 

 

Cisco 6200 User Guide

1-31

Page 31
Image 31
Cisco Systems 6200 appendix SLC 8DMT LEDs, Color Condition Indicated