TEW4840 Overview
ISDN U-BUS Input/Output Transformer TEW4840 TEW4840 is designed to interface with the subscribers premises (NT) and the 2- wire line side of the Central Office Equipment (LT) in the ISDN Network. TEW4840 meets the electrical specifications of ANSI TI.6011988 and is approved for the SIEMENS PEB2091 (V.C1) device. High performance 2B1Q line code.