| Adtran 1175407L2 Total Access 750/850 FXO Module Specifications: Provides four 2-wire analog FXO voice interfaces per module (up to 24 ports per chassis).    Supports Loop Start (LS), Ground Start (GS), and Foreign Exchange Office/Dial Pulse Terminate (FXO/DPT) modes.    Hot swappable.    Installs in any slot one through six. |