www.DataSheet4U.com CEPT/T1 TEW5719 is designed to be used as a Receive transformer in the ISDN primary rate access network. TEW5719 is approved for: Mitel MT89760/60B MT98790/90B Input Transformer Applications: Primary rate ISDN network nodes PBX or computer to T1/CEPT Digital Trunks. TDM Multiplexers. TEW5719 MECHANICAL 6 0.40 1 2 Device Line Dimensions ALL DIMENSIONS are IN in inches ARE INCHES 0.10 DIA O.025 0.40 4 3 120 6 6 5 4 1 2 Device 3 TEW5719-2.