Transmitter-receiver device and a communication system

Details Transmitter-receiver device and a communication system Transmitter-receiver device and a communication system

2007-05-01

2007-05-01

Singh, Dalzid (Department: 2613)

Optical communications

Diagnostic testing

Fault location

C398S017000, C398S022000, C398S031000, C398S032000, C398S033000, C398S151000

Reexamination Certificate

active

10433086

ABSTRACT:
The invention concerns a transmitter-receiver device (A, B) which comprises a receiver unit (RXA) for receiving optical signals and transmitter unit (TXA) for transmitting optical signals. Furthermore, the transmitter-receiver device (A, B) comprises a supervising unit (CUA) which supervises the functions of the receiver unit (RXA) and the transmitter unit (TXA). Furthermore, the transmitter-receiver device (A, B) comprises a transmitter circuit which transmits optical communication signals in response to a balanced electric input signal. The invention also concerns a communication system comprising two transmitter-receiver devices (A, B). Through the structure of the invention is by relatively simple means a well functioning device achieved, which, inter alia, makes it possible to supervise the status of the two transmitter-receiver devices (A, B) in an advantageous manner.

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