Download Black Box Version 1.0 User's Manual

5.3
Description of LEDs
The following LEDs are used to display normal operation condition and alarm condition.
LED
Status
Off
On
Blinking
Alarm
Normal operation
Failure or start of
the device
Low quality of line
BER > 15 %
Synch
DSL line is not
connected
Synchronization is
set up
Synchronization is in
process
Link
The Ethernet
network is off
The Ethernet
network is on
Packet exchange
between shdsl and
Ethernet
Act
–
–
Ethernet packet is
received
Pwr
Power is off
Power is on
–
1, 2, 3, 4
The hub port is
not active
The hub port is
active
Ethernet packet is
received
Col
–
–
Collision in the
Ethernet interface
Version: 1.0
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