Field Notice: FN - 62593 - OTBU - CSCO-CNTRL-BRD Missing Alarm Functions in Revised Control Board Software

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Updated:March 12, 2008
Document ID:FN62593

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Revised September 30, 2008
October 05, 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.

Revision History

   
Revision Date Comment
1.1 30-SEP-2008 Removed UMPIRE form and all references to the Upgrade Program.
1.0 05-OCT-2007 Initial Public Release

Products Affected

Products Affected Comments
CSCO - CSCO-CNTRL-BRD(=)
74-3688-02

 

Problem Description

The version of the Controller board listed above was recently introduced containing a software change.

The Software change caused an issue where upon loss of AC power to a single rectifier in a redundant system, no system alarms are generated, and the AC/DC panel status LEDs fail to indicate the condition. The controller and rectifier do recognize the condition.

This only affects alarming. It does not affect the power system.

Background

A customer reported that their alarms were not working properly when one of the AC power feeds was removed from a redundant power system.

This issue was introduced during a recent cost reduction activity, when a new revision of software was implemented.

Problem Symptoms

The system fails to generate an AC Failure Alarm when a single AC power feed is removed from the shelf assembly. The AC/DC panel status LEDs will also fail to indicate the condition.

Workaround/Solution

There is no workaround for this issue.
Cisco recommends a fix-on-fail strategy for this problem.

Service Logistics has known-good inventory at this time.

The standard RMA process and delivery times are in effect.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered customer and you must be logged in.

   
DDTS Description
CSCsg36068 (registered customers only) ONS CSCO-SM-PWR-SA not generating single rectifier AC failure alarm

For More Information

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