Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Product SN
The serial number (SN) on the slide-out label plate uniquely identifies a device. The SN is required when you contact Huawei technical support.
Figure A-1 SN example
![]()
Table A-1 SN description
Callout No. |
Description |
|---|---|
1 |
SN ID (two characters), which is 21. |
2 |
Material identification code (8 characters), that is, the processing code. |
3 |
Vendor code (two characters). 10 indicates Huawei, and other values indicate outsourcing vendors. |
4 |
Year and month (two characters).
NOTE:
The years from 2010 are represented by uppercase letters excluding I, O, and Z because the three letters are similar to digits 1, 0, and 2.
|
5 |
Sequence number (six characters). |
6 |
RoHS compliance (one character). Y indicates RoHS compliant. |
7 |
Internal model, that is, product name. |
