The ION 4 x T1/E1/J1 copper to fiber network interface device (NID) provides a solution for those users that need to extend multiple T1/E1/J1 connections and 10/100Mbps Ethernet over fiber.The ION 4 x T1/E1/J1 supports Small Form Pluggable (SFP) transceivers to support a variety of fiber types, distances and wavelengths to provide maximum flexibility across a variety of network topologies.The use of Coarse Wave Division Multiplexing (CWDM) SFPs can be utilized to further increase the bandwidth capacity of the fiber infrastructure.The ION 4 x T1/E1/J1 NID must be used in pairs. A typical installation will include a chassis card installed in the ION Platform locally and a stand-alone device installed at the remote location.