Wan Leds; Lan Leds - 3Com NETBuilder SI Using Manual

WAN LEDs

WAN
(CSU/DSU)
B2
B1
Line
Link
Act
Connect
Line
Fault
Error
Normal operation

LAN LEDs

y y y
LAN
L1 L2
100mb
L2
Link
Active
Fault
Normal operation
The following figure describes the WAN LEDs when an ISDN or a
CSU/DSU connection is being used.
(CSU/DSU)
B1 B2
Link
Connect
Fault
ISDN only
Line
(D channel). Lights green when the ISDN line is activated.
Act
Line
(D channel). Lights amber to indicate a loss of signal, such as a
Error
disconnected cable.
The following figure describes the LAN LEDs.
y y
L1 L2
Lights green when 100BASE-TX Ethernet is in use.
100mb
y
Link Lights green when the path is up.
Flashes green when a packet is detected on the LAN.
Active
Fault Lights amber when a an error is detected or the self-test
has failed.
Normal LED Meanings
The CSU/DSU uses only the B1 LEDs.
Lights green when the path is up.
Lights green when an end-to-end connection
exists or is in progress.
Lights amber when an error in the frames is
detected.
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