CN2146821Y

CN2146821Y - Double-set of telephone switching device

Info

Publication number: CN2146821Y
Application number: CN 92241201
Authority: CN
Inventors: 李主华
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-05
Filing date: 1992-11-05
Publication date: 1993-11-17
Anticipated expiration: 2002-11-05

Abstract

The utility model discloses a device used for switching the double set of a telephone, comprising A and B boxes connected correspondingly via a conducting wire. Both the A and the B boxes comprise casings 1, the input sockets of telephone signals 2, the connecting sockets of the telephones 3, signal transmission sockets 4 and double-pole double-throw switches 5. After the box of the switching device, of the double set of the telephone, of the utility model is matched with the telephone, two telephones can be arranged on the same line of the telephone signal without the addition of the load of the ringing current of the telephone, and thus a telephone subscriber, in particular to a domestic subscriber, can install a party-line telephone without the violation of the prescription of a telecommunication office.

Description

Double-set of telephone switching device

The utility model relates to a kind of telephone set two-shipper conversion equipment that is used on the same telephone signal line.

In order to satisfy in the family needs by the extension set of installing a telephone, various extension connectors occur in succession, its inside of T-883 type " the secret connector of extension " of introducing according to " electronics newspaper " 1992 the 17th phases third edition is to be made of electronic circuit, can accomplish between the extension set to maintain secrecy mutually, the line is busy earlier for the off-hook person of elder generation, other extension set automatic disconnection, each telephone set all is in state in parallel but this connector is connected the back with each corresponding telephone extension set, when telephone signal is arranged, each telephone set is bell ring simultaneously, has caused telecommunication bureau's station ringer stream load to overload greatly like this.

The purpose of this utility model is to provide a kind of telephone ringer current load that do not increase just can reach the telephone set two-shipper conversion equipment that two telephone sets are set on the same telephone signal line for the deficiency that solves above technology.

In order to achieve the above object, the designed telephone set two-shipper conversion equipment of the utility model is made up of A box and B box two parts of connecting by the lead correspondence, wherein all include housing, telephone signal input socket, telephone set gang socket and signal transmission socket, and in A, B two box bodys, all be provided with a double-point double-throw switch; Contravention all links to each other with an end of telephone set gang socket separately and an end of signal transmission socket respectively in the middle of two of double-point double-throw switch separately; All there is an end to link to each other in the signal transmission socket separately with an end of separately telephone set gang socket; All the other four contraventions of double-point double-throw switch are by with side position short circuit in twos in the A box, behind the short circuit respectively with the two ends of telephone signal input socket and signal transmission socket two ends are in parallel in addition; All the other four contraventions of double-point double-throw switch are pressed crossover location short circuit in twos in the B box, behind the short circuit respectively with the two ends of telephone signal input socket and signal transmission socket two ends are in parallel in addition.

In order to reduce cost, the double-point double-throw switch in its A box can be replaced by single-pole double-throw switch (SPDT) because double-point double-throw switch its with the contravention of side position in twos behind the short circuit, its function is the same with single-pole double-throw switch (SPDT).

During use, two telephone sets insert respectively in the telephone set gang socket of A, B two boxes, by lead and signal transmission socket corresponding link to each other of plug with A, B two boxes; The incoming call signal input line inserts in the telephone signal input socket of arbitrary box among A, the B, no matter this moment, which kind of location status double-point double-throw switch separately was in, all the time be that a telephone set is connected with the telephone signal line, when telephone signal arrives, also has only a telephone set bell ring, as when having plucked not the phone that rings, join double-point double-throw switch position on the box as long as switch this telephone set again, telephone signal is forwarded on this telephone set, at this moment the telephone signal of the telephone set of bell ring is cut off automatically, reaches between two telephone sets mutually to maintain secrecy.

Telephone set two-shipper conversion equipment described in the utility model, simple in structure, with low cost, particularly solved the problem that two telephone sets is set on the same telephone signal line and don't increases the ringing-current load of phone, brought convenience for the use of telephone set in the Modern Family.

Fig. 1 is the schematic appearance of telephone set two-shipper conversion equipment A, B two boxes;

Fig. 2 is a telephone set two-shipper change over switch user mode line assumption diagram;

Internal wiring structure chart when Fig. 3 is A box use single-pole double-throw switch (SPDT).

In conjunction with the accompanying drawings the utility model is further described below by embodiment:

Embodiment one:

As shown in Figure 1, A, B two boxes in the designed telephone set two-shipper conversion equipment of present embodiment all are made up of housing 1, telephone signal input socket 2, telephone set gang socket 3, signal transmission socket 4 and double-pole throw switch 5, the internal wiring structure chart of A box is shown in A portion among Fig. 2, and wherein two of double-point double-throw switch 5a middle contravention 501a, 502a are connected with the 301a end of telephone set gang socket 3a and the 401a end of signal transmission socket 4a respectively; Two-end-point 503a, the 504a of the same position state of double-point double-throw switch 5a and 505a, 506a be short circuit respectively, be connected with the 201a end of telephone signal input socket 2a and the 402a end of signal transmission socket 4a behind end points 503a, the 504a short circuit, be connected with the 202a end of telephone signal input socket 2a and the 404a end of signal transmission socket 4a behind end points 505a, the 506a short circuit; The 403a end of signal transmission socket 4a is connected with telephone set, and the 302a end of socket 3a is connected.

The internal wiring structure chart of B box is shown in B portion among Fig. 2, contravention 501b in the middle of two of double-point double-throw switch 5b wherein, 502b is connected with the 301b end of telephone set gang socket 3b and the 403b end of signal transmission socket 4b respectively, the two ends of the crossover location state of double-point double-throw switch 5b are 503b, 506b and 504b, 505b is short circuit respectively, end points 503b, be connected with the 201b end of telephone signal gang socket 2b and the 402b end of signal transmission socket 4b behind the 506b short circuit, end points 504b, be connected with the 202b end of telephone signal gang socket 2b and the 404b end of signal transmission socket 4b behind the 505b short circuit, the 401b end of signal transmission socket 4b is connected with the 302b end of telephone set gang socket 3b.

As shown in Figure 2, telephone set two-shipper conversion equipment described in the utility model connects A, B two boxes of above-mentioned two kinds of internal wiring structures in use by connecting the lead correspondence, insert telephone set then separately, no matter from that switch enclosure, insert the telephone signal line, can use phone, to reach the purpose that two telephone sets is set on the same telephone signal line and don't increases the telephone ringer current load.

Embodiment two:

In order to reduce cost, the double-point double-throw switch in the described A of the being box of present embodiment substitutes with single-pole double-throw switch (SPDT).As shown in Figure 3, the described A box of present embodiment is made up of housing 1, telephone signal input socket 2, telephone set gang socket 3, signal transmission socket 4 and single-pole double-throw switch (SPDT) 6, and wherein the intermediate ends 601 of single-pole double-throw switch (SPDT) 6 is connected with 301 ends of telephone

set gang socket

3 and 401 ends of signal transmission socket 4 respectively; All the other two side ends 602,603 of single-pole double-throw switch (SPDT) 6 are in parallel with the two ends 201,202 of telephone signal input socket 2 and the two ends 402,404 of signal transmission socket respectively; 403 ends of signal transmission socket 4 are connected with 302 ends of telephone set gang socket 3, so just, constituted the A box in the telephone set two-shipper conversion equipment described in the utility model, when it promptly becomes telephone set two-shipper conversion equipment described in the utility model with the B box described in the embodiment 1 after the corresponding connection by lead, to reach the purpose of using two telephone sets on the same telephone wire and don't increasing the telephone ringer current load.

Claims

1, a kind of telephone set two-shipper conversion equipment, it wherein all comprises housing, telephone signal input socket, telephone set gang socket, signal transmission socket by forming by corresponding A box and the B box two parts that connect of lead, it is characterized in that:

All be provided with a double-point double-throw switch in a, A, B two boxes;

Contravention all links to each other with an end of telephone set gang socket and an end of signal transmission socket respectively in the middle of two of double-point double-throw switch in b, A, B two boxes;

All there is an end to link to each other in the signal transmission socket in c, A, B two boxes with an end of separately telephone set gang socket;

All the other four contraventions of double-point double-throw switch are by with side position short circuit in twos in d, the A box, behind the short circuit respectively with the two ends of telephone signal input socket and signal transmission socket two ends are in parallel in addition;

All the other four contraventions of double-point double-throw switch are pressed crossover location short circuit in twos in e, the B box, behind the short circuit respectively with the two ends of telephone signal input socket and signal transmission socket two ends are in parallel in addition.

2, telephone set two-shipper transfer switch unit according to claim 1 is characterized in that the double-point double-throw switch in the described A box can be substituted by single-pole double-throw switch (SPDT).