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Cisco ONS 15300 Series

Field Notice: FN - 27535 - ONS15327 - Bad Lot of Bellfuse Transformers on XTC and MIC Cards


Revised March 5, 2006

November 25, 2003


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

Product Top Assembly Comments HW Rev.
Part Number
15327-MIC-A-1-T (=)   800-23601-01   Mechanical Interface Card, with 1-14 DS1�fs, 3 Tx DS3, A Side, ITEMP   B1  
15327-MIC-B-1-T (=)   800-23602-01   Mechanical Interface Card, with 15-28 DS1�fs, 3 Rx DS3, B Side, ITEMP   B1  
15327-XTC-14-T (=)   800-23774-02   XC 576 STS, 672 VT, 28 DS1, 3 DS3, ITEMP   A1  
15327-XTC-28-3-T (=)   800-23775-02   XC 576 STS, 672 VT, 28 DS1, 3 DS3, ITEMP   A1  

Problem Description

Solder-ability issue with BellFuse digital signal level 1 (DS1) transformer on above products that causes the Bellfuse transformer to either partially or completely come off of the board.
Only those customers with affected products, as listed above, including the revision, having serial numbers with week codes as listed in the following table, are asked to request an RMA replacement.

Background

The incorrect plating or coating was applied to the leads of the transformer, causing adhesion issues with the soldering process on the board. This causes the Bellfuse transformer to come either partially or completely off of the board. This will affect digital signal level 1 (DS1) service and DS1's will not come up.


 

Problem Symptoms

The incorrect plating or coating on this particular batch of transformers causes the transformer to come off of the board either partially or completely. This will affect DS1 service and DS1's will not come up.  

Workaround/Solution

Cisco recommends Fix on Failure. Customers with products shown above should request a replacement RMA of these products with defective the transformer upon failure of this board.

How To Identify Hardware Levels

Customers may utilize Cisco Transport Controller (CTC) or Cisco Transport Manager (CTM) to note revision level via software or may physically note via the 800 level product number indicated on the board itself.  

Revision History

Revision Date Comment
1.1 05-MAR-2006 Removed Umpire Form
1.0 25-NOV-2003 Initial Public Release

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