Abstract: A telephony distribution system includes a plurality of terminals with two connection points (16A), each for one pair of conductors (17A) forming part of a telephony distribution installation, and, for each of those terminals (16A), a short-circuit manager (25) including a substitution current source (26), a switch (27) and control means (28-31) for causing the switch (27) normally to assume a position in which its output terminal (34) is connected to an input terminal (32) itself connected to a pair of conductors (13, 15) providing a telephone line and to cause the switch (27). In the event of a short-circuit between the two connection points of the terminal (16A) concerned, to assume a second position in which that terminal is connected to the auxiliary current source (26).

Abstract: A wiring concentrator comprises a first terminal for a television signal distribution cable, a second terminal for a telephone network cable, and a plurality of third terminals for respective local area network cables, first, second and third connectors for respective active electronic units for processing television signals, telephone signals and local area network signals, respectively, and a printed circuit board connecting the first terminal to the first connector, the second terminal to the second connector, and each of the third terminals to each of the first, second and third connectors. A signal distribution unit comprises the above concentrator and at least one of the above active electronic units. A cabinet comprises a signal distribution unit and a DC electrical power supply unit.

Abstract: A telephony distribution system includes a plurality of terminals with two connection points (16A), each for one pair of conductors (17A) forming part of a telephony distribution installation, and, for each of those terminals (16A), a short-circuit manager (25) including a substitution current source (26), a switch (27) and control means (28-31) for causing the switch (27) normally to assume a position in which its output terminal (34) is connected to an input terminal (32) itself connected to a pair of conductors (13, 15) providing a telephone line and to cause the switch (27). In the event of a short-circuit between the two connection points of the terminal (16A) concerned, to assume a second position in which that terminal is connected to the auxiliary current source (26).

Abstract: A wiring concentrator comprises a first terminal for a television signal distribution cable, a second terminal for a telephone network cable, and a plurality of third terminals for respective local area network cables, first, second and third connectors for respective active electronic units for processing television signals, telephone signals and local area network signals, respectively, and a printed circuit board connecting the first terminal to the first connector, the second terminal to the second connector, and each of the third terminals to each of the first, second and third connectors. A signal distribution unit comprises the above concentrator and at least one of the above active electronic units. A cabinet comprises a signal distribution unit and a DC electrical power supply unit.