CN203504704U - Building intercom system with two nonpolar lines - Google Patents
Building intercom system with two nonpolar lines Download PDFInfo
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- CN203504704U CN203504704U CN201320523167.7U CN201320523167U CN203504704U CN 203504704 U CN203504704 U CN 203504704U CN 201320523167 U CN201320523167 U CN 201320523167U CN 203504704 U CN203504704 U CN 203504704U
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- transducer
- building
- lines
- indoor set
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Abstract
The utility model discloses a building intercom system with two nonpolar lines, and relates to the field of building intercom systems. The building intercom system comprises an entrance machine, indoor units and a two-line interface, and two terminals of the two-line interface are respectively connected with the entrance machine and the indoor units. According to the building intercom system with the two nonpolar lines, the wiring can be conducted optionally, the wiring is simple, and the distinction of polarities and colors is not needed; the structure of systematic networking is simple, and the two lines are directly connected in parallel; and a bus type structure is adopted so that the wire arrangement is reduced.
Description
Technical field
The utility model relates to residence intercom system field, building, relates in particular to a kind of employing two non-polar building of line residence intercom systems.
Background technology
The building residence intercom system of prior art has the multiple-way system of employing, netting twine, PSTN technology and modulation technique.
1, the building residence intercom system that adopts multiple-way system, the signals such as the voice that intercommunication needs, video transmit by analog form, and voice and video etc. all adopt independent transmission line, and misconnection can cause system normally to use;
2, adopt the building residence intercom system of network cable transmission digital signal, the signals such as the voice that intercommunication needs, video pass through Internet Transmission after being encoded to digital signal again, netting twine must be by EIA/TIA568A or 568B standard routing, and mistake causes system normally to use by meeting;
3, the building residence intercom system that adopts PSTN technical transmission analog signal, the voice signal that intercommunication needs transmits by analog form, in internal system, realizes 2 line-4 line conversions.Two lines are nonpolarity, arbitrarily connection.But cannot transmission video signal, and system cannot adopt bus structures, and cable wiring manufacture is complicated;
4, the building residence intercom system that adopts modulation technique transmission of analogue signal, adopts Sanyo's chip, the signals such as voice, video is modulated on internal power cord, in internal system demodulation out.Internal power cord two lines are nonpolarity, arbitrarily connection.Due to transfer impedance, be substantially only suitable for the pattern of 1 pair 1, cannot be applicable to the interconnected situation of a plurality of terminals.
Utility model content
The utility model provides a kind of employing two non-polar buildings of line residence intercom systems for residence intercom system deficiency in building in prior art, and this system is used two lines and nonpolarity, thus wiring arbitrarily, and wiring is simple, need not distinguish polarity and color etc.; Systems connection is simple in structure, and two lines are direct and connect employing bus-organization, thereby minimizing wiring.
The technical solution of the utility model is as follows:
Adopt the two non-polar building of line residence intercom systems, this system comprises doorway machine, indoor set and two line interfaces, and described two line interface two ends are connected with indoor set with doorway machine respectively.
Above-mentioned indoor set is one or more.
Said system also comprises repeater, and two line interfaces that repeater two ends are connected with indoor set with doorway machine are respectively connected.
Said system also comprises the first transducer and the second transducer.
Above-mentioned the first transducer is connected by two line interfaces with doorway machine, and above-mentioned the second transducer is connected by two line interfaces with indoor set; Between the first transducer and the second transducer, by netting twine, optical fiber or wireless mode, be connected.
Above-mentioned the first transducer and the second transducer are one or more.
The beneficial effects of the utility model are: system of the present utility model is used two lines and nonpolarity, thus wiring arbitrarily, and wiring is simple, need not distinguish polarity and color etc.; Systems connection is simple in structure, and two lines are direct and connect employing bus-organization, thereby minimizing wiring.
Accompanying drawing explanation
Fig. 1 is that the utility model adopts the two non-polar building of line residence intercom system modular structure schematic diagrames;
Fig. 2 is the modular structure schematic diagram that the utility model adopts the two non-polar building of line residence intercom system embodiment 1;
Fig. 3 is the modular structure schematic diagram that the utility model adopts the two non-polar building of line residence intercom system embodiment 2;
Fig. 4 is the modular structure schematic diagram that the utility model adopts the two non-polar building of line residence intercom system embodiment 3.
Embodiment
For better explanation the utility model, existing in conjunction with the embodiments and accompanying drawing be further described.
Embodiment 1:
As depicted in figs. 1 and 2, adopt the two non-polar building of line residence intercom systems to comprise doorway machine, indoor set and two line interfaces, indoor set is one or more, and two line interface two ends are connected with indoor set with doorway machine respectively.In the present embodiment, adopt two lines and nonpolarity, need not distinguish polarity and color, wiring is simple, can reduce wiring.
Embodiment 2:
As shown in Figure 3, adopt the two non-polar building of line residence intercom systems to comprise doorway machine, indoor set, two line interfaces and repeater; Indoor set is one or more, and two line interfaces that repeater two ends are connected with indoor set with doorway machine are respectively connected.In the present embodiment, by repeater, be connected with two line interfaces, repeater can articulate a fairly large number of terminal.
Embodiment 3:
As shown in Figure 4, adopt the two non-polar building of line residence intercom systems to comprise doorway machine, indoor set, two line interfaces, the first transducer and the second transducer, the first transducer is connected by two line interfaces with doorway machine, and the second transducer is connected by two line interfaces with indoor set; Between the first transducer and the second transducer, by netting twine, optical fiber or wireless mode, be connected; The first transducer and the second transducer are one or more.
Claims (6)
1. adopt the two non-polar building of line residence intercom systems, it is characterized in that: this system comprises doorway machine, indoor set and two line interfaces, described two line interface two ends are connected with indoor set with doorway machine respectively.
2. the employing two non-polar building of line residence intercom systems according to claim 1, is characterized in that: described indoor set is one or more.
3. the employing two non-polar building of line residence intercom systems according to claim 1, is characterized in that: described system also comprises repeater, and two line interfaces that repeater two ends are connected with indoor set with doorway machine are respectively connected.
4. the employing two non-polar building of line residence intercom systems according to claim 1, is characterized in that: described system also comprises the first transducer and the second transducer.
5. the employing two non-polar building of line residence intercom systems according to claim 4, is characterized in that: described the first transducer is connected by two line interfaces with doorway machine, and described the second transducer is connected by two line interfaces with indoor set; Between the first transducer and the second transducer, by netting twine, optical fiber or wireless mode, be connected.
6. according to the employing two non-polar building of the line residence intercom systems described in claim 4 or 5, it is characterized in that: described the first transducer and the second transducer are one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523167.7U CN203504704U (en) | 2013-08-16 | 2013-08-16 | Building intercom system with two nonpolar lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523167.7U CN203504704U (en) | 2013-08-16 | 2013-08-16 | Building intercom system with two nonpolar lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504704U true CN203504704U (en) | 2014-03-26 |
Family
ID=50335642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320523167.7U Expired - Fee Related CN203504704U (en) | 2013-08-16 | 2013-08-16 | Building intercom system with two nonpolar lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504704U (en) |
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2013
- 2013-08-16 CN CN201320523167.7U patent/CN203504704U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |