Nortel BM450 Troubleshooting Manual page 21

LAN port LEDs
Each LAN port on the main unit and expansion unit has two LEDs. These LEDs indicate the status
of the connection for that LAN port. The figure
location of these LEDs on the main unit.
Figure 1 LAN port LED locations
LAN port
LAN port
The table LAN port and expansion port LED indicators
states for the LAN ports LEDs.
Table 2 LAN port and expansion port LED indicators
LED Status
Yellow (left
On
LED)
Green (right
On
LED)
Both LEDs Off
Any LED Flashing
Media bay module LEDs (expansion units only)
The two media bay module (MBM) LEDs on an expansion unit show the power and status of the
MBM. The figure MBM LEDs
LEDs on an MBM. The power and status LEDs are in the same location on all MBMs.
Description
The LAN port is operating at 10 Mb/s.
The LAN port is operating at 100 Mb/s.
No connection.
The LAN port is sending or receiving network data. The frequency of the flashes
increases with increased traffic.
on page 22 shows the location of the
Chapter 3 Hardware Troubleshooting
LAN port LED locations
on page 21 describes the possible LED
BCM450 Troubleshooting Guide
21
on page 21 shows the
LAN port LEDs
and
(Power) (Status)