Chapter 8: Diagnostics/Maintenance
DS1 Card
Status LEDs
•Alarm LED. Indicates a major software alarm has been reported for the board. Red light indicates a major software alarm has been reported. A green light indicates that no alarms have been reported.
•Status LED. Indicates overall health of the board. A red (or amber) light indicates minor problems were found with the system but the board can be recovered without intervention. A green light indicates that no problems were found.
•CPU. Green light indicates CPU bus is active.
•PCI. green light indicates the local PCI bus is busy.
DSP LEDs. LEDs provide a high level indication of the DSP card activity.
•DSP Bank 1: Lights for DSP module activity on the first DSP module.
•DSP Bank 2: Lights for DSP module activity on the second DSP module.
For both DSP banks, lit red indicates
Status LED (Span). Each LED relates to one line on the rear of the DS1 card. For example, Span Status 1 indicates the operational activity of port 1 on the rear of the DS1 card.
•Off: A red alarm is generated; equipment is not connected.
•Green. Line is operating properly
•Red. Local alarm generated (i.e., loss of framing, etc.)
•Amber. Remote alarm generated (i.e., the Remote side has a problem and is sending a Yellow alarm)
If one or more LEDS are not lit green, the corresponding T1 or E1 span is not operating properly or not con- nected. The problem could be caused by a loss of signal. You can do one or all of the following:
•Verify cables are connected properly.
•Contact central office for interface issues.
•Verify configuration.
T1 WAN
The T1 WAN contains eight Span Status LEDs, viewable from the front of the chassis. Each LED relates to one line on the rear transition card. For example, Span Status 1 indicates the operational activity of port 1 on the rear of the transition module.
If LEDs are lit, the physical layer is operating properly for those lines being used.
If one or more LEDs are not lit green, the corresponding T1 line is not operating properly or not connected properly. The problem could be caused by a loss of signal. You can do one or all of the following:
•Verify cables are connected properly.
•Contact central office for interface issues.
•Verify configuration.
P/N |
