Troubleshooting guide

Checking Physical Equipment
2-31
Port LEDs are grouped vertically. A number to the right each LED group indicates
the port number associated with the group. Table 2-5 describes the possible
display states of these LEDs during operation.
Interpreting BSR 1000 LED Displays
The BSR 1000 provides three types of LEDs that indicate its operational status:
• System LEDs
• Upstream and Downstream Port LEDs
• Ethernet Port LEDs
The following sections describe the LED types.
System LEDs
The BSR 1000 system LEDs are located on the left side of the BSR 1000 front
panel and are labeled Fail, Status, and Alarm.
Table 2-7 BSR 64000 OC3/OC12 POS Port and Ethernet LED Display
States
Link Fail Interpretation
Green Off The SONET or Ethernet port is operational and is receiving
and transmitting data.
Green Red Operating with an alarm condition detected.
The SONET port is not operational because there is a loss
of signal (LOS), loss of frame (LOF), or loss of pointer
(LOP) condition.
Note: An alarm condition detected for an individual port
also causes the System Alarm LED to light on the System
Resource Module (SRM).
Off Red Failed port. Port is not operational.
Off Off Port is not configured or is disabled.
Note: Check module LEDs to determine if the module is
receiving power.