Zhone 5216 用户手册

DSL

Blinking

OFF

RTU is establishing the DSL link. The LED blinks on and
off about five times per second.

The DSL link is now active and ready to transmit and
receive data.

The DSL link has not been established.

ETHERNET ON

OFF

The Ethernet 10BaseT connection to the end-user system
is active.

No Ethernet 10BaseT device is detected.

The firmware download feature is available via the DSL link or the Ethernet port. During
a firmware download, the following LEDs are on:

H

ALM

H

TST

H

ETHERNET

H

PWR

All LEDs are on.

The RTU is not functional. Contact the NSP.

ALM LED remains
on.

The power-on self-test may have failed. Unplug the unit and
reapply power. If the alarm light is still on, contact the NSP.

ALM and TST
LEDs remain on.

DSL LED is off.

Verify that the DSL cable is securely installed on both ends.

If the RTU is not in firmware download mode, unplug the RTU
and reapply power. If problem continues, contact the NSP.

DSL LED continues
to blink after the
power-on self-test.

The RTU is attempting to establish the DSL link. If the DSL
LED continues to blink for more than five minutes, contact the
NSP.

DSL LED is on and
there is no data
transmission.

The DSL link has been established but there is no data
transmission. First, verify the Ethernet connection. If the
problem persists, contact the NSP.