Cisco ONS 15310-MA Troubleshooting Manual page 126

Alarm Procedures
Use of controls, adjustments, or performing procedures other than those specified could result in
Warning
hazardous radiation exposure. Statement 1057
Clear the SF (E1, DS3) Condition
Complete the
Step 1
Always use the supplied electrostatic discharge wristband when working with a powered
Caution
ONS 15310-MA SDH.
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.194 MS-EXC
An SF Line condition applies to the line layer B2 overhead byte of the SDH signal. It can trigger a
protection switch. The MS-EXC condition clears when the BER level falls to one-tenth of the threshold
level that triggered the condition. A BER increase is sometimes caused by a physical fiber problem,
including a poor fiber connection, a bend in the fiber that exceeds the permitted bend radius, or a bad
fiber splice.
The condition is superseded by higher-priority alarms such as
(STM).
Clear the MS-EXC Condition
Step 1 Complete the
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.195 HP-EXC
An SF Path condition is similar to an
layer B3 byte of the SDH overhead. It can trigger a protection switch.
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
2-126
"Clear the SD (E1, DS3) Condition" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: E3, STM
"Clear the MS-DEG Condition" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: VCMON-HP, VCTRM-HP
2.7.123 LOF (STM)
"MS-EXC" condition on page
Chapter 2 Alarm Troubleshooting
2-122.
or 2.7.138 LOS
2-123.
2-126, but it applies to the path (VC)
78-18663-01