... Remote loopback of individual DS1 circuits• Software selectable AMI and B8ZS line codes• Central office and remote alarm capability• Supports -48 VDC or 24 VDC powerThe Soneplex Quad Loop Extender ... (QLX) moduleconverts four multiplexed, DS1 signals into anoptical DS2 for delivery over singlemode opticalfibers. The optical DS2 is converted back to fourDS1s at the customer premises. It ... flexible, end-to-endsolutions, the Soneplex system saves carriers moneyon T1-based services over copper or fiber, usingHDSL, ADSL, traditional T1 repeater or Optical DS2technology, in a single...