Yeastar O2 Module 2 FXO Analog PSTN port Yeastar O2 Module (2FXO) is a module with 2 FXO ports to terminate two analog PSTN(POTS) lines. The O2 Module 2FXO is compatible with MyPBX series and S-Series PBX. Yeastar 02 Module Overview A module with 2 FXO ports to terminate two analog PSTN(POTS) lines. It can be used in MyPBX SOHO, MyPBX Standard, MyPBX Pro, MyPBX E1. MyPBX E1 Plus, MyPBX Enterprise, and TDM800 Card. S20 has 2 onboard module slots. S50, S412, and P550 have 4 module slots. P560 allows 1 Expansion Board. S100 and P570 support 2 Expansion Boards. S300 supports 3 Expansion Boards. Category: Yeaster PBX System
