Protection arrangement for an optical transmitter/receiver device

摘要

This protection arrangement protects an optical transmitter device (TX) with n optical transmit circuits (LC1/LCn) or an optical receiver device (RX) with n optical receive circuits (RX1/RXn). It includes fault evaluating means (FE) to detect a defective transmit/receiver circuit, a spare transmit (STC)/receive (SRC) circuit and switching means (S, S1) upon detection of a defective transmitter/receiver circuit by the fault evaluating means the latter controls the spare circuit and the switching means which then bypass the defective circuit by the spare circuit.