Run the display elabel command to view the electronic label of an optical module. < HUAWEI > display elabel. [Port_XGigabitEthernet4/0/1] /$ [ArchivesInfo Version] /$ArchivesInfoVersion=3. 0 [Board Properties] BoardType=PLRXPLSCS4322N. The following uses the Moduletek SFP-10G-LR module connected to a Huawei S6700 switch as an example to introduce how to read information of the connected optical module on a Huawei switch. The inventory information such as serial number, product code,optical module,device, power,voltage,temperature,fan, CPU and memory are very important on operation and troubleshooting purposes.