www.DataSheet4U.com ISDN S-Bus The 4 wire interface between Subscriber Terminals and the Network Termination has been standardized by CCITT recommendation I.430. It uses a passive bus which provides separate receiver and transmit loops operating at 192 Kbits/s. Two versions of TEW6197 have been designed and approved for use with the following devices: Input/Output Transformer TEW6197 Siemens PEB2080 PEB2081 PEB2085 PEB2086 Am79C30A MT8930A MT8930B MT8931B TEW6197 AMD TEW6197- 4 Mitel (See s.
