Troubleshooting guide

Checking Physical Equipment
2-33
Port LEDs are grouped vertically. A number above each LED group indicates the
channel number associated with the group. The single downstream channel is
numbered 0 and the four upstream channels are numbered 0, 1, 2, 3. Table 2-5
describes the possible display states of these LEDs during operation.
Ethernet Port LEDs
The Ethernet port at the back of the BSR 1000 has two associated LEDs located to
the right of the port. Table 2-10 provides an interpretation of the LED displays
Table 2-9 BSR 1000 Downstream and Upstream Port LED Display States
Status Alarm Interpretation
Green Off Normal operating status. The downstream
port is operational and is transmitting data to
the cable modem (CM) network.
Green Red Operating with an alarm condition detected.
Note: An alarm condition detected for an
individual port also causes the System Alarm
LED to light.
Off Red Failed port. Port is not operational.
Off Off Port is not configured.
Table 2-10 BSR 1000 Ethernet Port LED Display States
LED Label Display State Interpretation
10/100BASE-T On indicates that the port is operating at 100 Mbps.
Off indicates that the port is operating at 10 Mbps.
Link On indicates a working Ethernet connection between the
BSR 1000 and the device at the other end of the physical
connection.
Off indicates that a connection to the device at the other end of
the physical connection is not established.