Cisco Metro 1500 Series (MAN DWDM)

Field Notice 13853: Recall of Cisco Metro 1500 850 nm Line Modules

Updated March 26, 2002
June 5, 2001

Products Affected

Product Comments HW Rev.
WS-M15-63021611   Module Ch. 1, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021612   Module Ch. 2, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021613   Module Ch. 3, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021614   Module Ch. 4, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021615   Module Ch. 5, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021616   Module Ch. 6, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021617   Module Ch. 7, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021618   Module Ch. 8, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021619   Module Ch. 9, 1.25 or 1.062Gb/s, 850 nm, MM   B0  
WS-M15-63021620   Module Ch. 10, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021621   Module Ch. 11, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021622   Module Ch. 12, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021623   Module Ch. 13, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021624   Module Ch. 14, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021625   Module Ch. 15, 1.25 or 1.062Gb/s, 850 nm, MM B0  
WS-M15-63021626   Module Ch. 16, 1.25 or 1.062Gb/s, 850 nm, MM B0  

Serial Numbers

Random #
ADV04460028, ADV04460033, ADV04440027, ADV04440033, ADV04440033, ADV04460011, ADV04460009, ADV04440036, ADV04440009, ADV04440014, ADV04460012, ADV04440026, ADV04440016, ADV04440006, ADV04460016, ADV04460013, ADV04460019, ADV04440008, ADV04440010, ADV04440024, ADV04440028, ADV04460008, ADV04460010, ADV04460021, ADV04460029, ADV04460022, ADV04460034, ADV04460023, ADV04450036, ADV04460025, ADV04460037, ADV04460026, ADV04460038, ADV04460027, ADV04460040, ADV04460014, ADV04460003, ADV05090001, ADV05090002, ADV05090003, ADV05090004, ADV05090005, ADV04440003, ADV04440001, ADV05060040, ADV04440013, ADV04440025, ADV04460017, ADV04460032, ADV04460020, ADV04460006, ADV04440017, ADV04440015, ADV04440021, ADV04440035, ADV04460001, ADV04460002, ADV04460004, ADV04460005, ADV04460007, ADV04460015, ADV04460024, ADV04460030, ADV04460031, ADV04460035  

Problem Description

Cisco Metro 1500 850 nanometer (nm) line modules with serial numbers matching the list above are being recalled.


The Cisco Metro 1500 is an original equipment manufacturer (OEM) product sold by Cisco that incorporates an automatic laser shutdown (ALS) mechanism on all 850 NM line modules. The revision B0 Metro 1500 850 NM modules have firmware code that can cause the ALS mechanism to fail. When automatic shutdown (ALS) has failed, the milliwatts (mW) output of attenuated or multiplexed 850 NM line cards can reach above Class 1M International Electrotechnical Commission (IEC) or Food and Drug Administration (FDA) limits. IEC Class 1M indicates eyesafe mW output as long as the laser source is not viewed directly using optical instruments (magnifiers). For the IEC, output above Class 1M requires special safety warning labels, and ALS or shutter protection for field operators.

Problem Symptoms

In the Cisco Metro 1500 850 nm line modules identified above by serial number, the ALS mechanism can malfunction on revision B0 line modules.


If you have one of the Metro 1500 850nm line modules identified above, please replace these modules by using the upgrade program below. If this upgrade program is not available to you, please generate a Return Material Authorization (RMA) and specify ARFN (Administrative Request - Field Notice) as replacement type.

Upgrade Program

If you have any questions concerning the upgrade program, you can e-mail

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

Company Information
*ZIP/Postal Code
Product *Quantity
see 01Jun2001_1404_1
Contact Information
*First Name
*Last Name
*Phone 1 Ext.
Fax 1 Ext.
*Internet E-Mail
Please use the following format:
*Upgrade Order Reference Number
Please provide a number that you can use when inquiring about order status
*Serial Numbers of Affected Units 2
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.

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: