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5.3 Description of LEDs
The following LEDs are used to display normal operation condition and alarm condition.
Status
LED
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 Page. 35 of 95