Title :
A solution to the data communications requirement in rural areas
Author :
Kleynhans, G.C. ; Crotz, D.C.
Author_Institution :
Alcatel Altech Telecoms, Boksburg, South Africa
Abstract :
Large areas and the low per-area requirement of high speed digital data communications circuits have left and remote areas devoid of these services. Current available technology was designed to operate over relative short distances and requires that the client be situated within a certain distance (typical 7 km) of a central exchange. The most trivial solution to this problem must make use of the existing infrastructure. Such a system must aim to provide the same reliable service that is currently offered by high speed digital data services. It should blend the frequency division multiplex (FDM) infrastructure of rural areas with the time division multiplexing (TDM) infrastructure used by high speed digital data services. A system was designed and tested to form a interface between these two technologies, offering analog modem technology as a front end to the FDM system and a flexible CCITT recommendation G.703 co-directional interface into the TDM digital data network at a maximum speed of 9600 bit/s
Keywords :
data communication; digital communication; frequency division multiplexing; time division multiplexing; 9600 bit/s; CCITT recommendation G.703; FDM; TDM; analog modem; co-directional interface; data communications; digital communication circuits; digital data network; frequency division multiplexing; high speed digital data services; rural areas; time division multiplexing; Bridges; Communication cables; Communication standards; Data communication; Frequency division multiplexing; Modems; Signal to noise ratio; System testing; Telecommunication network reliability; Telematics;
Conference_Titel :
Communications and Signal Processing, 1993., Proceedings of the 1993 IEEE South African Symposium on
Conference_Location :
Jan Smuts Airport
Print_ISBN :
0-7803-1292-9
DOI :
10.1109/COMSIG.1993.365850
