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Cisco Carrier Routing System

Field Notice: FN - 63046 - CRS - 10C768-POS-SR Cards May Experience Bit Error Rate (BER) Incidents Due to Onboard Short - Upgrade Program Available

Revised May 06, 2008
April 23, 2008

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
06-MAY-2008
Modified "IOC768" to read "1OC768" - Products Affected, Workaround / Solution, and How to Identify Hardware Levels.
1.0
23-APR-2008
Initial Public Release

Products Affected

Products Affected Top Assembly Printed Circuit Assembly Comments Hardware Revision
Part Number Revision Part Number Revision
1OC768-POS-SR
 800-16968-04 D0 73-6893-09 D0 Includes version previous to stated version. Exact SN list provided below.
03

Problem Description

OC768 cards operating on the CRS-1 chassis may encounter intermittent burst BER events several months after installation due to dendrite growth. A dendrite is a crystal with a tree-like branching structure that is formed when a metal, or an alloy of multiple metals, in liquid form freezes. Packaging contamination can allow molding compounds to absorb moisture through the package body and between the lead frame molding compound interface causing dendrite formation. Combined with moisture, this results in a lowering of resistance between tracks and pads and can lead to metal corrosion.

Background

Contamination resulting from the assembly process or materials used in the packaging of the OC768 Mux and Demux chips may result in corrosion and dendrite growth occurring on some in-package capacitors. The corrosion products and/or growth of these dendrites will eventually cause long-term reliability issues for the device. Failure is gradual and very dependant on the environment with time and temperature as accelerators.

Problem Symptoms

The end-user may initially experience intermittent BER bursts. This will be followed by more frequent BER bursts. Further deterioration will result in a transmit out of alignment (TXOOA) error flag which can be manually cleared. Eventually the interface reaches a state of "frame lock asserted" and is unable to transmit traffic from the interface.

Workaround/Solution

Cisco recommends replacing the affected hardware (1OC768-POS-SR).

As of approximately February 22, 2008 new products that were manufactured under Engineering Change Order E092422 and Deviation Number D094933 are free of this problem. Please refer to the How to Identify Hardware Levels section below for instructions on how to view the version and deviation of in-service product.

Note: Proactive Replacements fulfilled through the recall process typically take 2-3 weeks. Normal service level agreements do not apply to replacements obtained using the upgrade form. For network down severity one Service Requests in need of single unit replacements, one can make Next Business Day (NBD) requests in the NOTES field below. Products that fall within the sited serial number range are NOT affected by this problem if they have ECO E092422 and Deviation D094933 applied.

How To Identify Hardware Levels

1) Check the 1OC768-POS-SR by using the show diag command below. If the TAN is higher than 800-16968-04, the 1OC768-POS-SR has been upgraded and does not need replacing. No further checks are necessary.

2) Check the Deviation Number by using the show diag command below. If the Deviation number is D094933, the 1OC768-POS-SR has already been reworked and does not need replacing, and no further checks are necessary. If the deviation is N/A as in the output below, proceed to step number three.

3) If the TAN is 800-16968-04 or lower, check all suspect Serial Numbers, by referring to the section entitled Affected Serial Numbers below. If a serial number is found in the list, then replace the 1OC768-POS-SR using the replacement form at the bottom of this field notice.

Execute the show diag command as seen below to check the 800 TAN number and deviation number.


PLIM 0/3/CPU0 : Cisco CRS-1 Series 1xOC768/STM256 POS Interface Module/SR
MAIN: board type 600083
800-16968-04 rev B0<------------- TAN # is here
dev N/A<-------------------- Deviation # is here
S/N SAD111200CF
PCA: 73-6893-09 rev B0
PID: 1OC768-POS-SR
VID: V03
CLEI: IPUIA1BRAB
ECI: 149222
Board State : IOS XR RUN
PLD: Motherboard: 0x0025, Processor: 0xdb88, Power: N/A
MONLIB: QNXFFS Monlib Version 3.1
ROMMON: Version 1.45(20070517:152402) [CRS-1 ROMMON]
CPU0: N/A, CPU1: N/A
SPEED: OSC Speed: 133 Mhz, CPU Speed: 1197 Mhz
BUS Speed: 133 Mhz, MEM Speed: 133 Mhz
MEM Size: 2048 Mbytes
Interface port config: 1 Ports
Optical reach type: Short Reach (SR)
Connector type: SC

4) Confirm the serial number and compare to the following list below:

Affected Serial Numbers

SAD1052069W
SAD1052069X
SAD105206A2
SAD105206A9
SAD105206AB
SAD105206AC
SAD105206AG
SAD110508JG
SAD110508JJ
SAD110508JP
SAD110508JR
SAD110508JV
SAD110704CF
SAD110704CG
SAD110704CH
SAD110704CK
SAD110704CP
SAD110704CS
SAD110704CT
SAD110704CW
SAD110901JL
SAD111003PA
SAD111200CE
SAD111200CG
SAD111200CH
SAD111200CN
SAD111200CR
SAD111200CV
SAD111300EL
SAD111300EU
SAD111300EW
SAD111300EX
SAD111300EY
SAD111300EZ
SAD111300F1
SAD111300F2
SAD1119007R
SAD112006B5
SAD112006B6
SAD112006B8
SAD112006B9
SAD112006BB
SAD112006BC
SAD112203CG
SAD112203CH
SAD112203CJ
SAD112203CL
SAD112203CP
SAD112203CR
SAD112203CS
SAD112203CT
SAD112203CU
SAD112203CW
SAD11250882
SAD11250883
SAD11250884
SAD11250886
SAD11250887
SAD11250888
SAD1125088A
SAD1125088B
SAD1125088D
SAD1125088E
SAD1128016J
SAD1128016K
SAD1128016L
SAD1128016M
SAD1128016N
SAD1128016P
SAD1128016R
SAD1128016T
SAD1128016U
SAD1128016V
SAD1128016W
SAD1128016X
SAD1128016Y
SAD112905K6
SAD112905K7
SAD112905K8
SAD112905K9
SAD112905KA
SAD112905KB
SAD112905KC
SAD112905KD
SAD112905KE
SAD112905KF
SAD112905KG
SAD112905KK
SAD112905KL
SAD112905KM
SAD113403NM
SAD113403NN
SAD113403NR
SAD113403NS
SAD113403NT
SAD113403NV
SAD113403NW
SAD113403NX
SAD113403NY
SAD113403NZ
SAD113403P1
SAD114006N6
SAD114006N9
SAD114006NA
SAD114006NB
SAD114006NC
SAD114006NE
SAD114006NG
SAD114006NJ
SAD114006NK
SAD1149017N

Upgrade Program

IOC768-POS-SR
If you want to check status on a previously booked upgrade, please refer to the Status Tool (Please note: you must have a sales order number in addition to a CCO User ID and Password to access this site):http://tools.cisco.com/qtc/status/tool/action/LoadOrderQueryScreen

For questions about an upgrade order already submitted, please send an email with your order number in the subject line to:upgrades-support@cisco.com
You will receive a response within 24 hours Monday-Friday not including US Holidays.


Note: Fields marked with an asterisk (*) are required fields.

Requestor Information
*Name
*E-mail Address
TAC SR Number
Customer Shipping Information
*Company
*Address
Address_line2
*City
*State/Province
*ZIP/Postal Code
Country
Product
Product *Quantity *Serial# 2
IOC768-POS-SR
Customer Contact Information
*First Name
*Last Name
*Phone 1 Ext.
Fax 1 Ext.
*E-Mail
Please use the following format: user@domain.com
*Upgrade Order Reference Number
Please provide a number that you can use when inquiring about order status
Notes
1 For phone and fax, include 011 and the country code outside North America.

2 When entering more than one serial number in the serial number text entry field, be sure to type a comma between each serial number to separate them.

3 For customers in Japan only *** please enter the building and the floor in the address field. Also, enter the contact person's name, the telephone number and the e-mail address in the appropriate fields..

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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