Nortel BCM50 Troubleshooting Manual page 20

20 Chapter 3 Hardware Troubleshooting
Figure 2 LAN port LED locations
LAN ports
The table LAN port and expansion port LED indicators
states for the LAN ports LEDs.
Table 3 LAN port and expansion port LED indicators
LED Status
Yellow On
Green On
Both LEDs Off
Any LED Flashing
ADSL router LEDs (BCM50a and BCM50ba only)
The three ADSL router LEDs on the faceplate of the BCM50a and BCM50ba main units monitor
router status, data, and DSL. The figure
units (BCM50a shown)
NN40020-700 NN40020-700
Expansion port
Router card LAN ports
Expansion/
LAN ports
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.
ADSL router LEDs on the BCM50a and BCM50ba main
on page 21 shows the location of the three ADSL router LEDs.
LAN port
on page 20 describes the possible LED
LAN port LEDs