TEW4980 Description
CEPT/T1 In/Output Transformer Typical applications are: TEW4980 TEW4980 is designed to be used either as a transmit or a receive transformer in the ISDN primary access network, interfacing SIEMENS PEB2235 and PEB2236 to a 75, 100 or 120 ohm line. When in transmit mode, connect the two primary windings in parallel, pin 1 to 3 and pin 2.