TRIPLE MODULAR REDUNDENCY TRANSMITTING CIRCUIT

摘要

The triplexed transmission circuit of common channel signalling apparatus in an electronic exchange gives transmission order to signal terminal control apparatus equally. The circuit includes a bus tranceiver unit (33) for sending triple transmission data (NTXD) and triple data transmission bus assertion signal (TXAST) and for receiving transmission enable signal (TXEN) and a transmission control unit (30) for sending transmission enable signal (TXEN) to the bus tranceiver unit (33) when assertion signal is received a transmission data bus tranceiver (34) for sending triple transmission data (NTXD) when a mono transmission data is received, and a data transmission bus assertion signal bus tranceiver (35) for sending triple data transmission bus assertion signal (TXAST).