International Standard Electric Corporation

Standard Electrik Lorenz Ag

Wolfgang Dietze

Jorg Reutter

According to the invention, for connections between terminals connected to different networks, the terminals intended for connection to the network having the higher capacity are so equipped that, alternatively (I, II), they could also operate at the network having the lower capacity. In these terminals as well as at the interface between the two networks, simple network interface devices (30, 60) are inserted which insert and extract the filler bits in a suitable manner.

Network interface and communication terminal

The hybrid includes a control circuit which automatically matches the impedance of the balancing network to the input impedance of the two-wire line connected to the hybrid. For control, rectified voltages present on the two-wire side and across the balancing network are averaged over time and the mean time values are compared.

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Korntal, Germany

Wolfgang Dietze