Field Notice: FN - 64159 - ASR 920 AC Power Supply Design Compliance Issue for Usage Above 2000M - Replace on Failure

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Updated:July 30, 2018
Document ID:FN64159

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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.

Revision History

Revision Publish Date Comments
1.0
23-Mar-17
Initial Release
10.0
11-Oct-17
Migration to new field notice system
10.1
30-Jul-18
Updated the Concept Tags

Products Affected

Affected Product ID Comments
A920-PWR400-A

Defect Information

Defect ID Headline
CSCvf34445 There were no defects filed with this field notice at the time of publication.

Problem Description

ASR 920 AC Power Supplies (A920-PWR400-A) shipped between September 2015 and May 2016 are only compliant for usage in elevations up to 2000 meters.

Customers who have the impacted power supplies (see the How To Identify Affected Products section) and need to use the units at altitudes greater than 2000 meters need to raise a Return Material Authorization (RMA) for their current AC Power Supply (A920-PWR400-A).

Note that the ASR 920 AC Power Supplies (A920-PWR400-A) are not expected to fail as a result of this issue, though the power supplies do need to be replaced in order to be compliant with both federal and international regulations.

Background

In June 2016, certification requirements were established specifically for power supply components used at altitudes greater than 2000 meters.

Cisco has made design changes to the power supply components in order to ensure compliance with these regulations.

All shipped power supplies are certified for altitude up to 2000 meters and no action is needed for use at these lower altitudes.

Problem Symptom

This is a design certification issue and there is not a symptom or failure expected while the unit is in use.

In order to ensure compliance, customers are not recommended to replace any ASR 920 AC Power Supplies planned for use in altitudes above 2000 meters.

Workaround/Solution

Cisco recommends that customers who have the impacted power supplies (see the How To Identify Affected Products section) and plan to use the ASR 920 Power Supply (A920-PWR400-A) for altitudes above 2000 meters request a replacement through the normal RMA process.

How To Identify Affected Products

Use the Serial Number Validation Tool in order to determine whether your ASR 920 Power Supply part number is impacted by this issue.

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:

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