IBM EtherLink XL The 3C905B-TX adapter has three status LEDs, as shown in Figure B-1 and described in Table B-1.

Status LEDs B-5
The 3C905B-TX adapter has three status LEDs, as shown in
Figure B-1 and described in Table B-1.
Figure B-1 LEDs
DATA
TX
ACT
10
100
L
N
K
RJ-45 port
ACT LED
10 LNK LED
100 LNK LED
Table B-1 LED Descriptions
LED Description Flashing Steady Off
10 LNK Green:
Link integrity Reversed polarity Good 10BASE-T connection between
adapter and hub
No connection
between
adapter
and hub
100 LNK Green:
Link integrity Reversed polarity Good 100BASE-TX connection between
adapter and hub
No connection
between
adapter
and hub
ACT Yellow:
Port traffic for
either speed
Network traffic
present Heavy network traffic No traffic