1 Small size BD module.

For example: LX3V-2ADI-BD; LX3V-2ADV-BD; LX3V-2DAI-BD; LX3V-2DAV-BD; LX3V-2PT-BD; LX3V-2RS485-BD

LX3V-2TC-BD

2 Big size BD module.

For example:LX3V-2PT2DA-BD;LX3V-2AD2DA-BD;LX3V-2AD2DAV-BD