Cisco ONS 15454 Troubleshooting Manual page 361

Chapter 2 Alarm Troubleshooting
2.7.233 LO-TXPOWER
The Equipment Low Transmit Power alarm is an indicator for the TXP_MR_10G, TXP_MR_2.5G,
TXPP_MR_2.5G, TXP_MR_10E, MXP_2.5G_10G, MRC-12, MRC-4, and OC192-XFP card
transmitted optical signal power. LO-TXPOWER occurs when the measured optical power of the
transmitted signal falls under the threshold. The threshold value is user-provisionable.
For more information about provisioning MXP or TXP PPMs, refer to the "Provision Transponders and
Note
Muxponders" chapter of the Cisco ONS 15454 DWDM Procedure Guide. For more information about
the cards themselves, refer to the Cisco ONS 15454 DWDM Reference Manual.
Clear the LO-TXPOWER Alarm
Display the TXP_MR_10G, TXP_MR_2.5G, TXPP_MR_2.5G, TXP_MR_10E, MXP_2.5G_10G, or
Step 1
OC192-XFP card view.
Click the Provisioning > Optics Thresholds > Current Values tabs.
Step 2
Increase the TX Power Low column value by 0.5 dBm.
Step 3
If the card transmit power setting cannot be increased without affecting the signal, complete the
Step 4
"Physically Replace a Traffic Card" procedure on page
If no ports are shown bad and the alarm does not clear, log into the Technical Support Website at
Step 5
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.234 LPBKCRS
The Loopback Cross-Connect condition indicates that there is a software cross-connect loopback active
between the optical cards. A cross-connect loopback test occurs below line speed and does not affect
traffic.
For more information on loopbacks, see the
Loopbacks" section on page
Cross-connect loopbacks occur below line speed. They do not affect traffic.
Note
November 2009
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EQPT, OCN
DWDM Logical Objects: 2R, ESCON, FC, GE, ISC, PPM
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: STSMON, STSTRM
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"1.4 Troubleshooting Optical Circuit Paths With
Cisco ONS 15454 Troubleshooting Guide, R8.5
2.7.233 LO-TXPOWER
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