How to use the bit error meter?

Bit error meter is a commonly used high-speed digital （ Including optical communication ） Instruments for devices and systems .

Generally, the bit error meter has 2 Most of them consist of code generator and code receiver . Code generator core component real-time clock source . The receiver is the code recovery circuit .
Bit error meter in RF Usage scenarios in RF ：
1, The condition of the internal circuit of the chip
2, Chip board welding ;
3, chip A-B;
4, On the board A-B;
5, Connector between single board and backplane ;
6, On the backboard A-B;
7, The whole machine
...
Bit error meter is everywhere .