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Cisco ONS 15300 Series

Field Notice: FN - 62192 - ONS - 15305-DC - Power Issue


Revised August 28, 2007
June 23, 2006


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.

Products Affected

Products Affected Top Assembly
Part Number Revision
15305-DC=
74-3223-01
B0


Serial Numbers

Random #
0507001413
0507001468
0507001477
0507001486
0507001491
0507001496
0507001502
0519002021
0519002022
0519002023
0519002030
0519002031
0519002034
0519002036
0519002037
0519002038
0519002039
0519002040
0519002069
0519002070
0519002071
0519002072
0519002073
0519002077
0519002078
0519002084
0519002085
0519002094
0519002096
0519002104
0519002105
0519002106
0519002108
0519002110
0519002112
0519002115
0519002116
0519002117
0519002118
0519002122
0519002123
0519002124
0519002125
0519002128
0519002129
0519002132
0519002135
0519002136
0519002137
0519002138
0519002141
0519002143
0519002144
0519002145
0519002146
0519002147
0519002148
0519002151
0519002152
0519002154
0519002159
0519002161
0519002162
0519002165
0519002169
0519002172
0519002174
0519002175
0519002176
0519002177
0519002178
0519002180
0519002181
0519002182
0519002183
0519002184
0519002185
0519002187
0519002188
0519002189
0519002190
0519002192
0519002193
0519002195
0519002196
0519002197
0522004277
0522004279
0522004291
0522004292
0522004294
0522004305
0522004316
0522004324
0522004345

Problem Description

The 15305-DC= design was modified in May 2005 to improve manufacturing yields. This change has caused higher than acceptable failure rates at customer sites.

This issue may be encountered whenever one or two of the affected modules are installed in a redundant power configuration. In this configuration, after the modules are powered on, the node begins to repeatedly reset with LEDs flashing. Powering off or removing either module, whether the module is affected or not, will correct the issue. This issue is not seen in non-redundant configurations.

Background

Customers using the redundant power supply option in the 15305 may experience startup issues.

Problem Symptoms

The modules will begin to reset repeatedly with LEDs flashing when installed in redundant power module configurations.

Workaround/Solution

If you have an affected unit, with the part number, revision, and serial number listed in this document, please contact the TAC and request an RMA. If any of the afore mentioned identifying information does not match that listed here, then the unit is not affected by this issue and should not be returned for replacement.

How To Identify Hardware Levels

The 15305-DC powered chassis can be identified by the DC power modules plugged above the SYSCONT-SD128-RJ45 module.

The chassis can be equipped with redundant DC power modules, which are plugged next to each other.

An individual 15305-DC power module can be identified by the 4 pin DC connector located on the front face plate. These four pins are labeled with the applicable DC voltages, which are, from left to right, 0V, -48DC, -48DC, and Chassis GND.

The Cisco part number for the 15305-DC power module is located on the non-component side of card. To view the Cisco part number, the DC power module must removed from the chassis after shutting off the DC power to the chassis, being sure to observe appropriate ESD anti-static procedures.

Revision History

Revision Date Comment
1.2
28-AUG-2007
The date of the document extended.
1.1
26-JAN-2007
Removed Upgrade Form
1.0
23-JUN-2006
Initial Public Release

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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