1.16 fxs,2 RJ45,Wan and Lan 2.1U height,for ... can connect the computer down;16 RJ45 ports, two expansion slots,An optional 16-32FXS ,16-32FXO, 16FXS +16 FXO Voice card;In short ... with a variety of PBX.The main parameters1. InterfaceTelephone Interface :16-32 FXS or FXO, RJ45 interfaceNetwork Interface: 2 10/100Base ...