Field Notice: FN - 15370 - ONS 15454 E1000-2 Ethernet Board Bit Error Rate Issue

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Updated:March 6, 2006

Document ID:FN15370

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Revised March 6, 2006
October 23, 2001

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		Printed Circuit Assembly		Comments	HW Rev.
Product	Part Number	Rev.	Part Number	Rev.	Comments	HW Rev.
ONS 15454 E1000-2 Ethernet board	800-06746-03

Problem Description

All ONS 15454 E1000-2 Ethernet boards built prior to September 10, 2001 contain capacitors of an improper value, resulting in a minute Bit Error Rate (BER).

Background

An inadvertent change in capacitor values on the E1000-2 schematic led to the use of an improper component during manufacturing.

Problem Symptoms

These capacitors affect the filter circuitry, resulting in higher than normal BER during operation. While this rate is higher than anticipated, it is very small and will not be an issue for the majority of users.

Workaround/Solution

Cisco reccomends a fix on failure replacement. In most networks this slight increase in the bit error rate will be unnoticeable and/or undetectable. Where the user feels this condition is unacceptable, the E1000-2 Ethernet board should be replaced during normal maintenance periods. A replacement may be obtained by contacting the Cisco Technical Assistance Center (TAC) and requesting an RMA replacement.

Revision History

Revision	Date	Comment
1.2	06-MAR-2006	Removed Umpire Form
1.1	07-DEC-2001	Maintenance Update
1.0	24-OCT-2001	Initial Public Release

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: