Zhone 7995 ユーザーガイド

6. Monitoring and Troubleshooting

, describes the meaning and states of the LEDs on the 

front panels. The following illustration shows the Hotwire 7995 TDM SHDSL front 
panel.

* Slow Cycling:  LED turns off and on in equal duration once per second.

Fast Cycling:  LED turns off and on in equal duration 5 times per second.

POWER

Green

On

Off

Slow Cycling

Normal operation. 

No power to the unit.

Unit is in minimum mode and a download is 
required.

ALARM

Red

On

Off

Device failure, or self-test has failed.

Self-test passed.

TEST

Yellow

On

Off

Slow Cycling

Loopback test in progress.

No tests in progress.

Self-test in progress.

DSL

Green

On

Off

Slow Cycling

DSL link is up.

The DSL link is down.

DSL training in progress.

DTE (7995)
G.703 (7996)

Green

On

Off

Slow Cycling

Fast Cycling

DTE port is operational.

DTE: No signal on port or configured DTR or 
RTS are not active.
G.703: No signal on port.

G.703: Remote Alarm Indication received.

G.703: OOF, LOF, EER, or AIS condition 
received.

PO

WER

ALARM TEST

DSL

DTE

TM

®

01-17053