Yeastar o2 module
yeastar o2 ip pbx module has 2 fxo ports to terminate two analog pstn (pots) lines. this yeastar card can be used directly with the yeastar s412 ip pbx, yeastar s20 ip pbx and yeastar s50 ip pbx yeastar s-series models. if you use yeastar ip pbx module with the yeastar s100 ip pbx and yeastar s300 ip pbx system, you will need 1 or more ex08 expansion cards.
these yeastar ip pbx modules are "push pin" snap in type expansion boards which are easy to install by most users.o2 yeastar ip pbx module simply unplug your pbx system for electrical safety before installing, remove the cover and pop in the card into the compatible slot on your phone system model, or the ex08/expansion cards to begin using once installed.
the yeastar o2 ip pbx module provide 2 additional fxo ports (analog telephone line