Zhone 5246 安装指导

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 LED is still on, contact the NSP.

ALM and TST
LEDs remain on.

on after five minutes, contact the NSP.

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.

DSL and Ethernet
LEDs are on and
there is no data
transmission.

The DSL link and the Ethernet link have been established. If
the problem continues, contact the NSP.

Ethernet LED is off.

Verify that the Ethernet 10BaseT cable is securely installed at
both ends, and at least one PC is connected and powered on.

Verify that the correct straight-through or crossover cable is
installed. Refer to 

PWR LED is off.

Check that the power cord is securely installed on both ends.

If no LEDs are on, the power supply may be defective. Try a
different outlet to test the power supply. If problem persists,
contact the NSP.

If other LEDs are on, the PWR LED may be burned out. Unplug
the unit and reapply power; watch all LEDs during the
power-on self-test to verify that the PWR LED is functioning.

TST LED is on.

A test initiated by the NSP may be active. Wait five minutes. If
the TST LED does not go off, contact the NSP.