Field Notice: FN - 64172 - Certain Versions of MPO Cables Do Not Function if Application Requires CPAK Connection - Replace on Failure

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Updated:January 14, 2019

Document ID:FN64172

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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	17-Aug-16	Initial Release
10.0	12-Oct-17	Migration to new field notice system
10.1	14-Jan-19	Fixed Broken Image Links

Products Affected

Affected Product ID	Comments
15454-24MPO-MPO-2=
15454-24MPO-MPO-4=
15454-24MPO-MPO-6=
15454-24MPO-MPO-8=

Defect Information

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

Problem Description

Some versions of the 24MPO-MPO cables (listed in the Products Affected section) do not work as intended for the CPAK-10x10G connection with the NCS2K-MF-MPO-20LC Fan Out.

Background

The 24MPO-MPO cables work for ROADM connectivity but do not work for CPAK-10x10G to NCS2K-MF-MPO-20LC Fan Out due to missing fiber connectivity. This has been identified as a design limitation with the MPO cables that are shipped after January 2016, from a certain vendor. Some of the 24 connections in the cable are not connected, which leads to the improper function of the CPAK application.

Problem Symptom

If an affected cable is used for the interconnection between the CPAK and the NCS2K-MF-MPO-20LC module, then Lane 0 and Lane 9 of the CPAK-10x10G do not work.

Workaround/Solution

If customers do not use a CPAK connection to the NCS2K-MF-MPO-20LC Fan Out, no action is required.

If customers use the 24MPO-MPO cables for the CPAK connection to the NCS2K-MF-MPO-20LC Fan Out and encounter the issue that is described in this Field Notice, they should open a return request so that Cisco can provide a replacement. For assistance, contact the Cisco Technical Assistance Center (TAC).

How To Identify Affected Products

Use the information that is provided in the table and images in order to determine the impacted cables:

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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