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Cisco ONS 15200 Series DWDM Systems

Field Notice: *Expired* FN - 20308 - ONS 15216-EDFA-2 Voltage Alarm Issue


Revised April 18, 2008
August 12, 2002


NOTICE:

THIS FIELD NOTICE HAS BEEN EXPIRED AND IS NO LONGER MAINTAINED OR UPDATED BY CISCO.

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

Products Affected

  • Cisco ONS 15216-EDFA-2

Problem Description

The Cisco ONS 15216-EDFA-2 does not alarm correctly for loss of voltage on the A or B power terminal.

Background

Cisco internal testing has revealed the following issue. When the -48VDC input is removed from either the A or B side (but not both), and the return is still connected, the EDFA-2 will not alarm. This condition should report by an alarm and blinking power LED. This problem is reproducible. It was determined that the software was not testing for an individual loss of connectors. This issue has been addressed and corrected.

Problem Symptoms

If either the A or B -48VDC connection is removed from either side while the return is still connected, the EDFA-2 does not alarm as expected.

Workaround/Solution

A software fix has been implemented and will be included in all software versions beginning with the Maintenance Release. To correct this issue, obtain and apply all aspects of the Upgrade Procedures for ONS 15216 EDFA2, 2.0.1.The installation instructions and software can be obtained at the same location.

DDTS

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

DDTS

Description

CSCdy08521 (registered customers only)

Power Fail alarm does not indicate single -48V wire failure

  

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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