2-51
Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter2 Alarm Troublesho oting Alarm Procedures
2.6.51 EQPT-MISS
•Critical (CR), Service Affecting (SA)
The Replaceable Equipment or Unit Missing (EQPT-MISS) alarm is reported against the fan-tray
assembly unit. It indicates that the replaceable fan-tray assembly is missing or not fully inserted.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.

Procedure: Clear the EQPT-MISS Alarm

Step 1 If the alarm is reported against the fan, verify that the fan-tray assembly is present.
Step 2 If the fan-tray assembly is present, complete the “Remove and Reinsert Fan-Tray Assembly” procedure
on page 2-130.
Step 3 If no fan-tray assembly is present, obtain a fan-tray assembly and complete the “Install the Fan-Tray
Assembly” procedure in the CiscoONS 15327 Procedure Guide.
Step 4 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC to report
a service-affecting problem (1-800-553-2447).
2.6.52 E-W-MISMATCH
•Major (MJ), Service Affecting (SA)
A Procedural Error Misconnect East/West Direction (E-W-MISMATCH) alarm occurs when nodes in a
ring have an east slot misconnected to another east slot or a west slot misconn ected to another west slot.
In most cases, the user did not connect the fibers correctly , or the ring pro visioning pl an was fla wed. You
can physically reconnect the cable to the correct slots to clear th e E -W-MISMATCH alarm. Alter na tely,
you can delete and recreate the span in CTC to change the west line and east line designations. The CTC
method clears the alarm, but might change the traditional east- west node connection pattern of the ring.
Warning
Invisible laser radiation might 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 might pose an eye hazard. Use of controls or adjustments or performance of procedures other than
those specified might result in hazardous radiation exposure.
Note The E-W-MISMATCH alarm also appears during the initial set up of a ring with its East-West slots
configured correctly. If the alarm appears during the initial setup, the alarm cle ars itself shortly af ter the
ring setup is complete.
Note The lower numbered slot at a node is traditionally labeled as the west slot and the high er numbered slot
is labeled as the east slot. For example, Slot 1 is west and Slot 4 is east.