Yeastar 02 Module (2 FXO) 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. Thank you for Shopping at Ovidian Tech Solutions. An award-winning online shop where you will find all the varieties and latest trends in Yeastar O2 Module (2FXO) YST-O2. We?ve come a long way, so we know exactly which direction to take when supplying you with this high quality yet budget-friendly Yeastar O2 Module (2FXO) YST-O2. Our top priority is the interest of our customers and we hope you will enjoy our products as much as we enjoy making them available to you. Call / WhatsApp on +254 798 870 738 to place your order and enjoy our fast delivery.