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1-4 User Guide for AIR-104/AIR-204
The LEDs on the front
There are 20 LEDs on the front of the AIR-104/204 that show the status of the modem
ports, the LAN ports, and the power. You can tell at a glance if your AIR-104/204 is func-
tioning properly, and if there is any traffic passing through it.
Figure 1-4
AIR-104 Front Panel LEDs
Figure 1-5
AIR-204 Front Panel LEDs
LED operation
The operation and meaning of the LEDs are described in the following table:
Power Diag 10-
Collision
100-
Collision
LAN 1-4 COM1 & COM2
100/10LNK/
ACT
Tx Rx OH CD
COLOR GREENORANGE ORANGE ORANGE GREENGREENGREENGREENGREENGREEN
ON Power Fail
(or Diag
still in
process)
--- --- 100
Mbps
Link
active
--- --- Off hookLine is
connect-
ed
BLINK --- --- Collision Collision --- Receiv-
ing data
Tx dataRx data --- ---
OFF No
power
Diag OK Normal Normal 10
Mbps
No link No dataNo dataOn hookNo con-
nection
Chapter 1 Introduction