High-speed data link for moderate distances and noisy environments
Abstract
A full duplex, high speed data link is described which comprises identical modules at each site for communication over coaxial cables. Each module having a digital frequency modulation (DFM) transmitter with an first-in-first-out (FIFO) data buffer for data from a digital system to be transmitted over a cable and a receiver with an FIFO data buffer for data received for a digital system at the other end of the cable. Data words are preceded by a sync word which enables the receiver. Every word transmitted, including the sync word is stored in the FIFO data buffer. This arrangement using FIFO buffers allows for asynchronous transmission of data with receipt of the data beginning with the very first bit of the sync word.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- February 1980
- Bibcode:
- 1980nasa.reptQ....S
- Keywords:
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- Channels (Data Transmission);
- Communication Cables;
- Computer Networks;
- Data Storage;
- Flip-Flops;
- Frequency Modulation;
- Patents;
- Communications and Radar