An electrooptical line module for transmitting in level-1 synchronous digital hierachy with synchronizing unit.

摘要

An electrooptical line module for transmitting in Level-1 Synchronous Digital Hierarchy with synchronizing unit which consists of a line module on a printed circuit, gathering components capable of performing transmission, reception, recovery and clock and alarm synchronization functions, acting as a transmitter by means of a subunit converting an input electrical signal to the module into an optical signal to be transmitted via fiber optics, and the input electronic data signal consists of a data sequence with NRZ code at a basic speed in the Synchronous Digital Hierarchy.