The function of these LEDs is summarized in the table below:
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).
T
ROUBLESHOOTING
40
Front Panel LEDs
LED
Condition
Status
Power
Off
No AC power
Green
AC power on
NMM
Off
NMM not installed
Blinking Green
Power-on diagnostics being
performed on NMM
Green
NMM has passed power-on
diagnostics
Blinking Yellow
NMM failed power-on diagnostics
Collision
Off
No collisions detected
(one per segment)
Blinking Yellow
A collision has been detected on
the network (i.e., the hub is
receiving data from two or more
nodes at the same time)
Segment
Off
Repeater group is connected to the
(one per segment)
stack
Yellow
Repeater group is segmented
(i.e., isolated from rest of stack)
Green
Repeater group is combined with
other groups within the hub
(Models 3312TA and 3326TA)
Port Status
Off
Port not connected or wiring is
(one per port)
faulty
Green:
RJ-45 / ST
Link between hub and attached
device is good
BNC / AUI
Loopback function is working
Blinking Green
Packet data is originating from
(Source)
this port
Yellow
Port is partitioned
(Partition)
Summary of Contents for TigerStack
Page 25: ...Stacking the Hubs INSTALLING 14 ...
Page 48: ...Status Diagnostic LEDs 38 Testing the Installation 41 CHAPTER 5 TROUBLESHOOTING 37 ...
Page 53: ...42 ...
Page 75: ...64 ...