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LASER_MOD_ERR alarm on PEX1 card due to the laser module is not fit with the board

Publication Date:  2012-07-25 Views:  44 Downloads:  0
Issue Description

In country X, Our customer complains that  LASER_MOD_ERR alarm appeared on PEX1 card.
OSN 3500 version as below
BIOS        08.09.84T02 20090724 15:58:21 inactive
ExtBios     09.09.85T01 20100225 17:21:12 active
NeSoft(D)   5.21.31.35 20101028 18:44:15
Platform(D) 5.00.23.181 20101016 16:36:27
GSPSoft(D)  5.99.35.10.B181 20101015 09:35:51
Logic       (U2201)220

Alarm Information

The LASER_MOD_ERR is an alarm indicating mismatch of optical modules. When the type of the optical module inserted does not match the type supported by the board, this alarm occurs.

Handling Process

Recommended to use the follow module whose bom is given, please check the follow table.
Laser module is not fit with the board: 
34060361 FTLX1811M3-HW 
FTRX-1811-3-HW 
TRF7061FN-GA420 

Root Cause

BoardType=SSN1PEX1
BarCode=030KRA1098000129
/$Item=03030KRA
 
BoardType=TRF7061FN-LF000 
     
 BarCode=J09L35401       
Item=
Description=11100Mb/s-1550nm-LC-80000m(SMF fiber)
Manufactured=2009-12-02
/$VendorName=Opnext Inc.
 
From previous data conclude that: the laser module is not fit with the board. 

Suggestions

To check the laser modules every time replace/install new OSN.

END