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. Remote management Extended operating temperature Remote firmware upgrade Access to complete status and configuration on local and remote device Settings for line code, line build out, loopbacks and Alarm Indication Signal (AIS) LEDs for device status and troubleshooting Local and remote loopbacks Loopback via test set Pause (Flow Control on Ethernet port) Auto-MDI/MDIX (2) SFP ports on S6121-1040 model (1) RJ-45 10/100Mbps Ethernet port (4) RJ-48 copper interfaces (1) fiber interface (fixed or SFP)