Telecommunication apparatus

摘要

A transition module using an input/output (I/O) bus interface can be connected to a backplane having a bus connector. The transition module is provided with an external connector for receiving an input signal, an interface circuit coupled to the external connector and a processing unit for carrying out initial filtering and processing of the input signal before coupling the signal to a processor card connected to the backplane via the I/O bus interface and the bus connector.