Field Notice: FN - 63444 - 15454-OPT-AMP-C: Certain cards may perform the startup cycle without reaching an operational stable condition - Software Upgrade Recommended

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Updated:May 10, 2018

Document ID:FN63444

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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	15-Feb-16	Initial Release
10.0	09-Oct-17	Migration to new field notice system
10.1	10-May-18	Updated Products Affected Section

Products Affected

Affected Product ID	Comments
15454-OPT-AMP-C	See the "How to Identify Affected Products" Section Below
15454-OPT-AMP-C=	See the "How to Identify Affected Products" Section Below

Defect Information

Defect ID	Headline
CSCtj08551	OPT-AMP-C(ViD=1536): Pout oscillation using OC3/OC12 or OC48/192 w/o FEC

Problem Description

The 15454-OPT-AMP-C card may perform the start up cycle without reaching an operational stable condition.

This issue is only seen under two contiions:

15454-OPT-AMP-C cards showing the following info: Vendor ID= 1536, FW version= 2.3.4 or previous in the Card Inventory tab.
The OCH circuit built onto the amplifier is:
- an OC3/OC12 frame modulated signal
- an OC48/OC192 payload carried by a TXP/MXP card with G709 framing (and consequently FEC too) DISABLE at card level

This issue is always reproducible when the first circuit created on the 15454-OPT-AMP-C has the above mentioned payload settings.

Background

Investigation into the 15454-OPT-AMP-C behavior was found to be consistent with Cisco bug ID CSCtj08551.

The issue has been root caused to defective firmware on some OPT-AMP-C units from a specific vendor.

Problem Symptom

The 15454-OPT-AMP-C cards become unstable after first circuit activation.

The amplifier shows either one of the following problems:

Card does not complete startup and gain control mode switching procedure successfully: 15454-OPT-AMP-C stays stuck in a never-ending APR cycle
Card completes the startup sequence, but after 30/60 seconds a continuous Pout oscillation (up to 6-7dB read by CTC) occurs on COM-RX or LINE-TX ports
Card completes the startup sequence, stays stable for a while and then goes in Equipment Failure (EQPT) critical alarm.

Workaround/Solution

Complete a software upgrade to Release 9.21, 9.2.1.1 or 9.23.

A new FW version (2.3.6) included the above releases will be automatically downloaded and activated on the 15454-OPT-AMP-C cards.

How To Identify Affected Products

The 15454-OPT-AMP-C cards showing the following information in the Card Inventory tab are potentially affected:

Vendor ID = 1536
FW version = 2.3.4 or earlier

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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