Front Panel Leds - SMC Networks TigerStack User Manual

T
ROUBLESHOOTING
The function of these LEDs is summarized in the table below:
LED
Power
NMM
Collision
(one per segment)
Segment
(one per segment)
Port Status
(one per port)
Note: With some network adapters, the Port Status LED will light only
after the board has been initialized with the appropriate driver soft-
ware (e.g., after IPX has been loaded in a NetWare environment).
40

Front Panel LEDs

Condition
Off
Green
Off
Blinking Green
Green
Blinking Yellow NMM failed power-on diagnostics
Off
Blinking Yellow A collision has been detected on
Off
Yellow
Green
Off
Green:
RJ-45 / ST
BNC / AUI
Blinking Green
(Source)
Yellow
(Partition)
Status
No AC power
AC power on
NMM not installed
Power-on diagnostics being
performed on NMM
NMM has passed power-on
diagnostics
No collisions detected
the network (i.e., the hub is
receiving data from two or more
nodes at the same time)
Repeater group is connected to the
stack
Repeater group is segmented
(i.e., isolated from rest of stack)
Repeater group is combined with
other groups within the hub
(Models 3312TA and 3326TA)
Port not connected or wiring is
faulty
Link between hub and attached
device is good
Loopback function is working
Packet data is originating from
this port
Port is partitioned