CN202258533U - RS486 computer signal data cable - Google Patents
RS486 computer signal data cable Download PDFInfo
- Publication number
- CN202258533U CN202258533U CN2011201182028U CN201120118202U CN202258533U CN 202258533 U CN202258533 U CN 202258533U CN 2011201182028 U CN2011201182028 U CN 2011201182028U CN 201120118202 U CN201120118202 U CN 201120118202U CN 202258533 U CN202258533 U CN 202258533U
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- signal data
- computer signal
- data cable
- conductor
- cable inner
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Abstract
The utility model discloses an RS486 computer signal data cable, which comprises a plurality of cable inner cores, and is characterized in that the plurality of cable inner cores are symmetrically arranged; each cable inner core comprises one or more than one conductor core group; and each conductor core group is respectively formed by a plurality of conductors in a hinged manner; an insulation layer is respectively coated outside each conductor core group; a shielding layer, an outer shielding layer and a protective sleeve are coated outside the cable inner core in sequence. The utility model has the characteristics of stable signal, fire resistance, fast transmission speed, long transmission distance, clear image, accurate data and so on.
Description
Technical field
The utility model relates to Computer signal data cable field, is specifically related to a kind of RS486 Computer signal data cable.
Background technology
The wires and cables industry product category is numerous, and range of application very extensively relates to industries such as electric power, petrochemical industry, communication, manufacturing, and is all closely related with each department of national economy.The RS cable is called as national economy " artery " and " nerve ", be transmission information with and various signal, realize the indispensable basic equipment of electromagnetic energy conversion, be necessary base product in the following informationized society.Especially national in the fast development as China, the huge demand that capital construction and auxiliary facility are built is self-evident.
Data between computer and computer or computer and the terminal transmit can adopt serial communication and two kinds of modes of parallel communication.The circuit of use is few, cost is low because serial communication mode has, and particularly when remote transmission, has avoided the inconsistent of many line characteristics and extensively employing of quilt.When serial communication, require communication two party all to adopt a standard interface, different equipment can be coupled together easily carry out communication.The early stage RS-232 interface that uses exists more deficiency, and to these deficiencies, so just constantly some new interface standards occurred, RS-485 is exactly one of them, and it has following characteristics:
(1), the electrical characteristic of RS-485: logical one is represented for+(2-6) V with the voltage difference of line-to-line; Logical zero is represented for-(2-6) V with the voltage difference of line-to-line.Interface signal level ratio RS-232 has reduced, and the chip of fragile interface circuit not just, and this level and Transistor-Transistor Logic level compatibility can make things convenient for the TTL circuit to be connected;
(2), the data maximum transmission rate of RS-485 is 10Mbps;
(3), the RS-485 interface is the combination of adopting balance driver and differential receiver, anti-common mode disturbances ability strengthens, promptly noise immunity is good;
(4), the maximum transmission distance standard value of RS-485 interface is 4000 feet, in fact can reach 3000 meters, RS-232 interface only allows to connect 1 transceiver, promptly single station ability on bus in addition.And the RS-485 interface is to allow to connect nearly 128 transceivers on bus.Promptly have the multistation ability, the user can utilize single RS-485 interface to set up device network easily like this;
Because of the RS-485 interface has good noise immunity, above-mentioned advantages such as long transmission range and multistation ability just make it become first-selected serial line interface, and such development necessity of making use of momentum is designed a kind of cable newly, that be applicable to the RS-485 standard.
The utility model content
The technical problem that the utility model will solve provides a kind of RS486 Computer signal data cable, to remote, jamproof data passes, designs superior performance in the RS486 of RS485 cable Computer signal data cable according to the RS-485 interface specification.
The technical scheme of the utility model is following:
A kind of RS486 Computer signal data cable; Include several cable inner cores; It is characterized in that: each cable inner core includes one or more conductor cores groups, and each conductor cores group is formed by several conductors are stranded respectively, and each conductor cores group is coated with insulating barrier outward respectively; Described several cable inner cores are coated with internal shield, outer shielding layer and sheath outward successively.
Described a kind of RS486 Computer signal data cable, it is characterized in that: described conductor is the tin-coated copper core.
Described a kind of RS486 Computer signal data cable is characterized in that: said insulating barrier adopts high density polyethylene (HDPE) foaming or foam PVF propylene material.
Described a kind of RS486 Computer signal data cable, it is characterized in that: said internal shield adopts colored aluminium plastic material, and outer shielding layer adopts the tinned copper wire braiding.
Described a kind of RS486 Computer signal data cable is characterized in that: said sheath adopts polyvinyl chloride or foam PVF propylene material.
The beneficial effect of the utility model:
(1), the utility model adopts stranded tin annealed copper wire as conductor, conductor have softness, impedance little, be difficult for characteristics such as oxidation;
(2), the utility model insulating barrier adopts three-layer co-extruded physical blowing polyethylene; (thickness is generally 0.02～0.05mm) and is extruded into internal layer with one deck thin skin; Prevent that gas from discharging along surface of conductors; Improved the extension property of insulating barrier greatly, improved the insulation fracture elongation, and guaranteed that insulating barrier can stick on the conductor well; The common relatively insulating barrier of the utility model insulating barrier insulating barrier is little to the capacitance of conductor influence, has guaranteed the low capacitive character of RS486 cable, and transmission speed is faster, and transmission range is farther;
(3), the utility model adopts inside and outside two kinds of shielding modes shielding, prevented that effectively the low-frequency band signal from disturbing and the high frequency band signal disturbs, and guaranteed the stability of signal transmission;
(4), perfluoroethylene-propylene has resistance to chemical attack in the sheath material of the utility model; Medium viscosity; Wear-resisting and resistant to elevated temperatures characteristics; That polyvinyl chloride has is heat-resisting, fire-retardant, than characteristics such as softnesses, guaranteed to use the RS486 cable fulfils RS-485 communications protocol code requirement designed with the RS485 interface kit.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1; A kind of RS486 Computer signal data cable; Include 1, three cable inner core 1 of three cable inner cores and be symmetrically set, each cable inner core includes two conductor cores groups; By 2 stranded compositions of several conductor, each conductor cores group is coated with insulating barrier 3 outward respectively to each conductor cores group respectively; Three cable inner core 1 outer internal shield 4, outer shielding layer 5 and sheaths 6 of being coated with successively.
Claims (5)
1. RS486 Computer signal data cable; Include several cable inner cores; It is characterized in that: each cable inner core includes one or more conductor cores groups, and each conductor cores group is formed by several conductors are stranded respectively, and each conductor cores group is coated with insulating barrier outward respectively; Described several cable inner cores are coated with internal shield, outer shielding layer and sheath outward successively.
2. a kind of RS486 Computer signal data cable according to claim 1, it is characterized in that: described conductor is the tin-coated copper core.
3. a kind of RS486 Computer signal data cable according to claim 1 is characterized in that: said insulating barrier adopts high density polyethylene (HDPE) foaming or foam PVF propylene material.
4. a kind of RS486 Computer signal data cable according to claim 1, it is characterized in that: said internal shield adopts colored aluminium plastic material, and outer shielding layer adopts the tinned copper wire braiding.
5. a kind of RS486 Computer signal data cable according to claim 1 is characterized in that: said sheath adopts polyvinyl chloride or foam PVF propylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201182028U CN202258533U (en) | 2011-04-21 | 2011-04-21 | RS486 computer signal data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201182028U CN202258533U (en) | 2011-04-21 | 2011-04-21 | RS486 computer signal data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258533U true CN202258533U (en) | 2012-05-30 |
Family
ID=46119741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201182028U Expired - Lifetime CN202258533U (en) | 2011-04-21 | 2011-04-21 | RS486 computer signal data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097104A (en) * | 2015-09-09 | 2015-11-25 | 刘雷 | Fire-retardant communication cable and production method thereof |
| CN106910548A (en) * | 2017-03-28 | 2017-06-30 | 安徽凌宇电缆科技有限公司 | A kind of robot cable |
-
2011
- 2011-04-21 CN CN2011201182028U patent/CN202258533U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097104A (en) * | 2015-09-09 | 2015-11-25 | 刘雷 | Fire-retardant communication cable and production method thereof |
| CN106910548A (en) * | 2017-03-28 | 2017-06-30 | 安徽凌宇电缆科技有限公司 | A kind of robot cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |