3Com 1000BASE-SX Switch User Manual


 
14
2-P
ORT
1000BASE-SX
AND
2-P
ORT
1000BASE-LX G
IGABIT
E
THERNET
I
NTERFACE
M
ODULES
Q
UICK
S
TART
G
UIDE
Verifying Module
Operation
The GEN Interface Modules each have one Module Status LED and two
Port Status LEDs. Watch the LEDs during system power-on to verify
proper module operation. During the power-on diagnostic test, both
the Module Status and Port Status LEDs flash for approximately 1
second, and then reflect the active status of the module as described in
Table 3.
.
Table 3
Module and Port Status LED Indicators
LED State and Color Description
Module Status
Green Power is on (normal operation).
Off No power.
Port Status
Green Port is enabled and link is up.
Flashing Green
Port is receiving or transmitting
packets.
Port is cabled but the switch fabric
module is down or unavailable.
Off Link is disabled or port is not cabled.