You can use commands to view the electronic labels.

To view the part number and production date, run the display elabel command.

[Board Properties]

BoardType=CX22EMFF

BarCode=21023514201091004595
Item=02351420
Description=Quidway S3352P-EI-48S, S3352P-EI-48S Mainframe(48 100 BASE-X ports and 2 100/1000 BASE-X ports and 2 SFP GE (1000 BASE-X) ports (SFP Req.) and DC -48V)
Manufactured=2011-03-24
VendorName=Huawei
IssueNumber=00
CLEICode=
BOM=02751420

•  BarCode=21023514201091004595: electronic label
•  Manufactured=2011-03-24: production date
•  BOM=02751420: part number

Useful Information

Perfect! this is a usefull information.

To MA5600T is the same but do you need to enter to diagnose mode:

      CSRN01GP01(diagnose)%%display elabel 0

/$[System Integration Version]

/$SystemIntegrationVersion=3.0

[Rack_1]

[SubRack_1]

[FanFrame_0]

/$[ArchivesInfo Version]

/$ArchivesInfoVersion=2.0

/$[Log]

/$Log1=,03020AFW0,2009-05-20

[Board Properties]

BoardType=H801FCBB

BarCode=020AFW6T95007020

/$Item=03020AFW

/cDescription=??°??t?±±?O

/eDescription=Fan Speed Controlling and Monitoring Board

/$PCBVersion=020AFW

Manufactured=2009-05-20

ManufactureCode=6

/$CLEICode=

 This command you run by board o by the frame complete:

Complete frame:    display elabel 0        --> the information is provided some second after run the command, please wait is normal.

By boards:             display elabel 0/x     --> "x" board name