Troubleshooting
The Ethernet (A, B, or C) light on the front panel (see Figure D-2) illuminates as soon as the
terminal server detects network activity (normally about 2 seconds). Within 15 seconds
the unit transmits software load requests on the network or begins to load from the memory
card.
The RUN light and the Ethernet (A, B, or C) light blink during loading. Loading takes
from ten to sixty seconds, depending on the amount of network activity and the speed of the
load server. The light pattern should appear as follows:
Front Panel Light Activity Meaning
Ethernet A, B, or C light ON Terminal server detects network activity
on Ethernet segment to which it is attached.
CARD light ON Unit is loading from a Memory card (light
ON for approximately 15 seconds).
☞ The Terminal Server 720 is
accessing the Memory card. Do not
remove the card while the CARD light
is ON.
RUN and Ethernet (A, B, or C) lights blink
simultaneously
Software load in progress.
When loading from a memory card, or
when using another Network 9000 card as a
load server, Port lights go ON, sequentially
from right (Port 8 status light) to left (Port 1
status light). Then, lights go OFF.from left
to right.
Unit has finished loading the software
image, and is decompressing it.
RUN light flashes slowly
Ethernet (A, B, or C) light flashes when
Ethernet packets are received
Software loading has completed.
Terminal server is in normal operating
state.
0021 D-79
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General