You can view a Huawei optical module's serial number and manufacturing date using the display elabel or display transceiver interface commands.

Viewing Serial Number and Manufacturing Date

1. Using the Electronic Label (elabel) Command Run the command display elabel on your Huawei device. The output includes a BarCode, which represents the serial number of the optical module, and a Manufactured field showing the production date. For example:

   CodeCopyBarCode=CB02UF1SWManufactured=2011-01-09Vendor Name=JDSU This indicates the serial number is CB02UF1SW and the module was manufactured on January 9, 2011 .

2. Using the Transceiver Interface Command To view details for a specific port, run:

   CodeCopydisplay transceiver interface <interface-type> <interface-number> The output includes:

   • Manu. Serial Number: the module's serial number
   • Manufacturing Date: the production date Example:

   CodeCopyManu. Serial Number :CD25HP12MManufacturing Date :2013-06-18Vendor Name :Huawei This shows the serial number CD25HP12M and manufacturing date June 18, 2013 .

3. Physical Label Check You can also check the label attached to the optical module itself. The label typically lists the serial number, vendor, and manufacturing date, which is useful if you cannot access the device CLI .

Additional Notes

• These commands work on Huawei switches and routers, including S12700, S300, S500, and 5700 series devices .
• The serial number is unique to each module and can be used for warranty verification or inventory management.
• The manufacturing date indicates the year of use and helps determine module age and lifecycle planning. By using these methods, you can reliably obtain both the serial number and year of manufacture for any Huawei optical module installed in your network.