Cisco ONS 15400 Series

Revised June 19, 2007
January 31, 2007

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected

Problem Description

An incorrect capacitor has been installed on some power filter assemblies in 15454 shelves that were manufactured and shipped between December 2005 and July 2006.
These power filter assemblies are used in the 800-xxxxx-03 and -04 shelves only.
Approximately 40% of the shelves shipped may have incorrect capacitors.

Background

The purpose of the filter assembly was to meet Telcordia (GR-1089) EMI requirements. The Telcordia specifications were later changed in 2006, making the capacitor unnecessary.
The capacitors were removed from the design with the version -05 shelves which started shipping in October 2006, so the currently shipping shelves are not at risk.
Up to 2% of shelves with incorrect capacitors may experience a capacitor failure during the normal life of the shelf.

Customers with version -03 and -04 shelves may contact Cisco for a replacement as instructed below.

As an alternative to complete shelf replacement, Cisco developed an in-service inspection program to aid in identifying incorrectly built power filter assemblies. Version -03 and -04 shelves may be inspected in the field to determine whether an incorrect capacitor is installed. The inspection is not traffic impacting, but it is strongly recommended that it be conducted during a maintenance window. After shelves in the field are inspected, they are labeled by the inspectors with a sticker, if the capacitor is correct.

Please note: As the inspection process is manual and relies on a subjective color assessment to determine capacitor type, it is subject to error. Since the initial offering of the inspection program, there have been a small number of known manual inspection escapes, where incorrectly built power filter assemblies were misidentified as correctly built power filter assemblies, and subsequently failed. Analysis is underway on these errors to see if any further corrective action may be warranted. Given the possibility of escapes in the inspection process, Cisco extends the offer to replacement of any shelf covered by the inspection process at the customer's request.

Customers who wish to schedule an inspection may contact Cisco as instructed below.

Problem Symptoms

If an incorrect capacitor is installed in the power filter assembly, and it has sustained a mechanical stress crack, it can cause arcing, smoke and a traffic outage.
There is no safety issue associated with the failure, although traffic on the system will be impacted.

Workaround/Solution

Shelves with incorrect capacitors may be returned for replacement.

If an inspected shelf is determined to have an incorrect capacitor, it may be returned for replacement.

To schedule an inspection to determine if installed shelves have incorrect capacitors, please contact Ralph Butteris, rbutteri@cisco.com

Shelves returned for removal of the capacitors are re-identified with the latest version (-05, -06, etc.)

There is no cost or charge associated to the replacement.

How To Identify Hardware Levels

Serial numbers do not change when a board is reworked to the latest revision of 800 numbers.

To determine the Part Number, Hardware Revision and Serial Number of your 15454-SA-HD, or 15454-SA-HD-DDR, or 15454-SA-HDBNC=:

Open Cisco Transport Controller.
From the Shelf View, select Inventory
From the Inventory tab, locate the 15454-SA-HD, 15454-SA-HD-DDR, or 15454-SA-HDBNC shelf and compare the information from the Inventory tab against the Products Affected section above.

If you are using TL1 commands.
1. >ACT-USER::
2. >RTRV-INV::ALL
3. >CANC-USER::
Compare the information from the TL1 inventory command against the products Affected section above.

If you determine you have a shelf assembly that requires inspection, please contact Ralph Butteris (rbutteri@cisco.com) for scheduling.

Any customers that have a custom BIC on the back of the shelf/chassis, must remove the BIC before shipping back to Cisco, and save it for the replacement shelf

Upgrade Program

Revision History

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.