Safety Summary - Cisco NCS 2000 series Troubleshooting Manual

Alarm Troubleshooting
standard severity-demoting rules given in Telcordia GR-474-CORE. Procedures for customizing alarm
severities are located in the
Service Effect
Service-Affecting (SA) alarmsthose that interrupt servicecould be Critical (CR), Major (MJ), or Minor (MN)
severity alarms. Service-Affecting (SA) alarms indicate service is affected. Non-Service-Affecting (NSA)
alarms always have a Minor (MN) default severity.
State
The Alarms or History tab State (ST) column indicate the disposition of the alarm or condition as follows:
• A raised (R) event is one that is active.
• A cleared (C) event is one that is no longer active.
• A transient (T) event is one that is automatically raised and cleared in CTC during system changes such

Safety Summary

This section covers safety considerations designed to ensure safe operation of the NCS system. Personnel
should not perform any procedures in this chapter unless they understand all safety precautions, practices,
and warnings for the system equipment. Some troubleshooting procedures require installation or removal of
cards; in these instances users should pay close attention to the following caution.
Caution
Hazardous voltage or energy could be present on the backplane when the system is operating. Use caution
when removing or installing cards.
Some troubleshooting procedures require installation or removal of cards; in these instances users should pay
close attention to the following warnings.
Warning
The laser is on when the card is booted and the safety key is in the on position (labeled 1). The port does
not have to be in service for the laser to be on. The laser is off when the safety key is off (labeled 0).
Statement 293
Warning
Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Do not stare into the beam directly with optical instruments. Viewing the laser output with certain
optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm
could pose an eye hazard. Statement 1056
Alarm and TCA Monitoring and Management
as user login, logout, loss of connection to node/shelf view, etc. Transient events do not require user
action. These are listed in the chapter, Transient Conditions, on page
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
Safety Summary
document.
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