Zhone 5620 インストール手順
9
Power-On
When power is applied, the RTU performs self-diagnostics and the PWR LED is on.
The self-diagnostics includes a power-on self-test. During the power-on self-test, all of
the LEDs turn on for one second.
The self-diagnostics includes a power-on self-test. During the power-on self-test, all of
the LEDs turn on for one second.
TST
DSL
ETHERNET
ALM
PWR
TM
Power – green
Alarm – red
Test – yellow
Digital Subscriber Line – green
Ethernet Link – green
5620
Status LEDs
All of the LEDs turn on and off during the power-on self-test. After a successful
self-test, the LEDs should appear as indicated in BOLD in the Condition column below.
self-test, the LEDs should appear as indicated in BOLD in the Condition column below.
LED
Condition
Status
PWR
ON
RTU has power.
ALM
OFF
ON
No active alarms.
An alarm condition exists.
TST
OFF
ON
No active tests.
The TST LED is on during the power-on self-test and
during a test initiated by the NSP.
during a test initiated by the NSP.
DSL
Blinking
ON
OFF
RTU is establishing the active DSL link. The LED blinks
on and off about five times per second.
on and off about five times per second.
The DSL link is now active and ready to transmit and
receive data.
receive data.
The DSL link has not been established.
ETHERNET ON
OFF
The Ethernet 10BaseT connection to the Ethernet hub or
PC is active.
PC is active.
No Ethernet 10BaseT device is detected.