Led Meanings - Zhone 4821-A2 Installation Manual

LEDs

LED Meanings

34
BitStorm 4800 Express Model 4821-A2 Installation Guide
When power is first applied to the unit, it performs a power-on self-test. When
this test is successfully completed, the Status LED blinks. The meaning of all
the LEDs is shown in Table 3, Front Panel
Table 3: Front Panel LEDs
LED Color
Link* Green
Activity* Green
STATUS Green
ALARM Amber Off
TEST Amber Off
DSL Ports Green
(LEDs
numbered
1–24 or 1–48
correspond to
DSL ports
1–24 or 1–48)
* The RJ45-type connectors for Port 1 and Port 2 bear two LEDs: the left one is
the Link LED and the right one is the Activity LED.
LEDs.
State Meaning
Off No Ethernet link present.
On Ethernet Link present.
Flashing Ethernet link is present, but port is
administratively disabled.
Off No data is being transferred.
On Data is being transferred.
Off No power, or the unit has not
completed initialization.
On Unit has power and has completed
initialization.
No Alarms.
On Unit failed self-test, or the unit has
exceeded a safe temperature, or a fan
has failed.
Normal operating mode.
On At least one port is in test mode.
Off The port is disabled or no signal is
detected on the line.
On Port has successfully trained with the
remote and is active.
4821-A2-ZN21-30