WO2014170944A1 - Adaptateur de communication - Google Patents

Adaptateur de communication Download PDF

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Publication number
WO2014170944A1
WO2014170944A1 PCT/JP2013/061205 JP2013061205W WO2014170944A1 WO 2014170944 A1 WO2014170944 A1 WO 2014170944A1 JP 2013061205 W JP2013061205 W JP 2013061205W WO 2014170944 A1 WO2014170944 A1 WO 2014170944A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication
cable
cable connector
communication unit
connection
Prior art date
Application number
PCT/JP2013/061205
Other languages
English (en)
Japanese (ja)
Inventor
専 梶野
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2013/061205 priority Critical patent/WO2014170944A1/fr
Priority to JP2013534514A priority patent/JP5420121B1/ja
Priority to TW102138867A priority patent/TW201440350A/zh
Publication of WO2014170944A1 publication Critical patent/WO2014170944A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/06—Cable ducts or mountings specially adapted for exchange installations

Definitions

  • the present invention relates to a communication adapter that relays a communication unit and a communication cable.
  • a so-called daisy chain connection in which a plurality of devices are connected in series may be employed in a communication system based on serial communication such as EIA-485.
  • Two communication cables are connected to the communication units connected by the daisy chain method.
  • One communication cable and a terminating resistor are connected to the communication unit that is the communication end.
  • the communication unit and the communication cable are connected using, for example, a terminal block.
  • a communication cable As a communication cable, a cable that is a dedicated product prepared according to the type of communication or a cable with the same specifications as the dedicated product may be recommended.
  • a shielded cable including a shielded wire is used as the communication cable. The shield wire is twisted and then subjected to terminal processing, and is connected to the terminal block like the other signal wires of the communication cable.
  • Each terminal block is mounted with a frame ground (FG) terminal in addition to a terminal to which a signal line of a communication cable is connected and a terminal to which a shield line is connected.
  • FG frame ground
  • connection method using this terminal block there is a problem that the wiring around the connection portion between the communication cable and the terminal block increases.
  • the number of wirings is increased, work in changing the arrangement of communication units, exchanging communication cables, and the like becomes complicated, and the maintainability of the communication system is lowered.
  • by using a dedicated cable for specific communication as the communication cable it is necessary to exchange the communication cable to change to another communication method.
  • Patent Document 1 discloses a configuration method in which an adapter having three connectors is used for daisy chain connection.
  • Patent Documents 2 and 3 disclose an apparatus including a plurality of standard connectors.
  • JP 2004-70422 A JP-A-11-27405 JP-A-9-129328
  • Patent Document 1 does not clearly indicate whether or not to use a standard product as a connector.
  • the connection of communication cables, connectors, and shield wires inside the device is not clarified. According to the prior art, it is difficult to realize the mounting of the communication cable by simple work and the simplification of the wiring around the portion to which the communication cable is connected.
  • the present invention has been made in view of the above, and enables mounting of a communication cable by simple work and simplification of wiring around a portion to which the communication cable is connected, and obtains high maintainability.
  • the purpose is to obtain a communication adapter.
  • the present invention is a communication adapter that relays a communication unit and a communication cable in a communication network using a daisy chain connection, and can be attached to a standardized connector.
  • a first cable connector and a second cable connector corresponding to the communication cable including a plug and a connection line are mounted, and the communication cable is connected to each of the first cable connector and the second cable connector.
  • the first cable from a conductive wire constituting a path and a connection line provided in the communication unit A conductive path that forms a connection path leading to the shield attached to the connector and a connection path leading from the connection line included in the communication unit to the shield attached to the second cable connector.
  • the communication adapter includes the first cable connector and the second cable connector corresponding to the standard product, so that the communication cable that can be attached to the standardized connector can be connected by a simple operation. .
  • the signal line of the communication cable is connected to the communication unit side through a conducting wire with a simple configuration.
  • the connection line included in the communication cable is connected to the connection line included in the communication unit via the shield and the conductive line of each of the first cable connector and the second cable connector.
  • the serial communication adapter can reduce the number of man-hours compared to the case where it is necessary to attach the communication cable to the terminal for each signal line or to attach the connection line to the terminal.
  • the serial communication adapter can simplify the wiring at the connection portion with the communication cable.
  • the wiring can be reduced, the work in changing the connection of the communication unit or exchanging the communication cable can be simplified, and high maintainability can be obtained.
  • the communication adapter is a communication method change between communications that can use the same type of general-purpose shielded multicore cable, it is possible to eliminate the need to replace the communication cable. As a result, it is possible to attach the communication cable by a simple work, simplify the wiring around the portion to which the communication cable is connected, and obtain high maintainability.
  • FIG. 1 is a diagram showing a schematic configuration of a communication system including a serial communication adapter that is a communication adapter according to an embodiment of the present invention.
  • FIG. 2 is a plan view of the adapter on the side where the cable connector and the FG terminal are mounted.
  • FIG. 3 is a diagram illustrating a state in which a communication cable and an FG line are connected to the adapter illustrated in FIG.
  • FIG. 4 is a diagram illustrating an example of electrical connection of a communication unit, an adapter, and a communication cable.
  • FIG. 5 is a diagram illustrating a schematic configuration of a communication system including a conventional terminal block.
  • FIG. 6 is a plan view of the terminal block on the side where various terminals for cable connection and the FG terminal are mounted.
  • FIG. 7 is a diagram showing a state where the communication cable and the FG line are connected to the terminal block shown in FIG.
  • FIG. 1 is a diagram showing a schematic configuration of a communication system including a serial communication adapter that is a communication adapter according to an embodiment of the present invention.
  • the communication system is a communication system based on EIA-485, for example.
  • the communication system constitutes a communication network in a sequence system, for example.
  • the communication system includes a plurality of communication units 1.
  • the plurality of communication units 1 are connected in series by a daisy chain method.
  • the communication system constitutes a communication network by daisy chain connection.
  • the plurality of communication units 1 transmit and receive data by serial communication via the communication cable 3.
  • the communication cable 3 has plugs 8 at both ends that can be attached to standardized connectors.
  • the communication cable 3 includes a shield wire that is a connection wire inside.
  • the communication cable 3 is a general-purpose shielded multicore cable. As the communication cable 3, for example, a category 5e compatible STP cable is used.
  • the connecting wire is a shielded wire or any conductive wire.
  • the adapter 2 functions as a serial communication adapter that relays between the communication unit 1 and the communication cable 3.
  • the adapter 2 is attached to each communication unit 1.
  • the adapter 2 is attached to the communication unit 1 via the communication unit connection connector 9.
  • the adapter 2 has two cable connectors 5 and 6 and a frame ground (FG) terminal 7 mounted thereon.
  • the cable connector 5 is a first cable connector.
  • the cable connector 6 is a second cable connector.
  • FIG. 2 is a plan view of the adapter on the side where the cable connector and the FG terminal are mounted.
  • FIG. 3 is a diagram illustrating a state in which a communication cable and an FG line are connected to the adapter illustrated in FIG.
  • the cable connectors 5 and 6 have a configuration compatible with the communication cable 3.
  • the cable connectors 5 and 6 are configured so that the plug 8 of the communication cable 3 can be fitted therein.
  • the two cable connectors 5 and 6 have the same configuration.
  • a shield 10 is attached to the cable connectors 5 and 6.
  • Each of the shield 10 attached to the cable connector 5 and the shield 10 attached to the cable connector 6 can be connected to a shield line that is a connection line included in the communication cable 3.
  • standard connectors such as shielded RJ-45 connectors are used.
  • the communication cable 3 is connected to a cable connector 5 on one side of the two communication units 1 and a cable connector 6 on the other side.
  • the communication cable 3 is connected to both of the cable connectors 5 and 6.
  • the communication cable 3 is connected to one of the cable connectors 5 and 6, and the termination resistor 4 is connected to the other.
  • FG line is connected to the FG terminal 7.
  • the housing of the communication unit 1 is grounded via the FG terminal 7 and the FG line.
  • the FG line is connected to, for example, a screw tightening type FG terminal 7.
  • FIG. 4 is a diagram showing an example of electrical connection of a communication unit, an adapter, and a communication cable.
  • the connection about the communication unit 1, the adapter 2, the communication cable 3, and the FG terminal 7 in CC-Link (Control & Communication Link) (registered trademark) is taken as an example.
  • the cable connectors 5 and 6 include the same number of pins 11 and 12 as the core wires to be connected between the communication cable 3 and the communication unit 1 in the communication network or more than the core wires to be connected.
  • the adapter 2 includes an internal signal line 14, an internal shield line 15, and an internal FG line 16.
  • the internal signal line 14 is a conducting wire constituting a connection path from the communication unit 1 side to the pin 11 in the cable connector 5 and a connection path from the communication unit 1 side to the pin 12 in the cable connector 6.
  • the adapter 2 includes the same number of internal signal lines 14 as the core wires to be connected between the communication cable 3 and the communication unit 1 in the communication network.
  • Each internal signal line 14 is branched, for example, from a midway position in the path connecting the pin 13 in the communication unit connection connector 9 and the pin 11 in the cable connector 5 to the pin 12 in the cable connector 6. Make a branch connection.
  • the internal shield line 15 is attached to the cable connector 6 from the shield (SLD) line, which is a connection line included in the communication unit 1, to the shield 10 attached to the cable connector 5, and from the SLD line included in the communication unit 1. It is a conducting wire constituting a connection path to the shield 10.
  • SLD shield
  • the internal shield wire 15 is, for example, a branch connection in which a conductor leading from the middle position of the conductor connecting the SLD line in the communication unit 1 and the shield 10 in the cable connector 5 to the shield 10 in the cable connector 6 is branched. Eggplant.
  • the internal FG line 16 is a conducting wire that connects the FG line in the communication unit 1 and the FG terminal 7.
  • the communication unit 1 includes signal lines DA, DB, DG, NC, NC, SLD lines, and FG lines.
  • the communication cable 3 includes signal lines DA, DB, DG, NC, NC, NC, NC, NC, NC, and two SLD lines. The two SLD lines are bundled together in the communication cable 3, for example, before the plug 8.
  • the DA, DB, and DG lines of the communication cable 3 are connected to the pins 11, respectively.
  • the end of the internal signal line 14 on the cable connector 5 side is connected to a pin 11 to which each line of DA, DB, and DG is connected.
  • the DA, DB, and DG lines of the communication cable 3 are connected to the pins 12, respectively.
  • the end of the internal signal line 14 on the cable connector 6 side is connected to a pin 12 to which each line of DA, DB, and DG is connected.
  • an internal signal line 14 is connected to each of the pins 13 to which the DA, DB, and DG lines in the communication unit 1 are connected.
  • the DA line in the communication unit 1 and the DA line in the communication cable 3 are connected to each other via the internal signal line 14.
  • the DB line in the communication unit 1 and the DB line in the communication cable 3 are connected to each other via an internal signal line 14.
  • the DG line in the communication unit 1 and the DG line in the communication cable 3 are connected to each other via an internal signal line 14.
  • the internal signal line 14 is composed only of a conductor such as a substrate pattern, for example.
  • the adapter 2 can connect the communication unit 1 and the communication cable 3 with a simple wiring having a branch connection as compared with a case where a control circuit for communication between the communication unit 1 and the communication cable 3 is incorporated.
  • the termination resistor 4 is also connected to the signal line in the communication unit 1 through the internal signal line 14 in the same manner as the communication cable 3.
  • the SLD line of the communication cable 3 is connected to the shield 10 in the cable connector 5 through the plug 8.
  • the internal shield line 15 is connected to the SLD line in the communication unit 1.
  • the inner shield line 15 is composed of only a conductor such as a substrate pattern, for example.
  • the internal FG line 16 is connected to the FG line in the communication unit 1.
  • the FG line in the communication unit 1 and the FG line extended from the FG terminal 7 to the outside of the adapter 2 are connected to each other via the internal FG line 16 and the FG terminal 7.
  • the adapter 2 can connect the FG line in the communication unit 1 and the FG line extended from the FG terminal 7 to the outside of the adapter 2 at the same potential.
  • FIG. 5 is a diagram showing a schematic configuration of a communication system including a conventional terminal block.
  • the communication cable 3 is a shielded multi-core cable that is a dedicated product prepared according to the type of communication.
  • the terminal block 21 is attached to each communication unit 1.
  • the terminal block 21 is mounted with various terminals 22 and FG terminals 7 for connection of communication cables.
  • FIG. 6 is a plan view of the terminal block on the side where various terminals for cable connection and the FG terminal are mounted.
  • FIG. 7 is a diagram showing a state where the communication cable and the FG line are connected to the terminal block shown in FIG.
  • the various terminals 22 include a shield terminal 23 to which the shield line 26 is connected and a signal terminal 24 to which the signal line 25 is connected.
  • Each signal line 25 of the communication cable 3 is connected to a different signal terminal 24.
  • the core wires which are the same signal wires taken out from the two communication cables 3, are connected to the signal terminal 24 with the ends thereof being matched by the signal terminal 24.
  • the shield wire 26 is subjected to terminal processing after being twisted together.
  • the shield wires 26 taken out from the two communication cables 3 are bundled together and then connected to the shield terminal 23.
  • the adapter 2 includes cable connectors 5 and 6 corresponding to standard products, so that the connection of each signal line and the shield line can be performed by inserting the plug 8 into the cable connectors 5 and 6. Connections can be made simultaneously.
  • the operator does not need to take out the signal line from the communication cable 3, work to connect the core wires from the two communication cables 3, and bundle the shield wires 26.
  • the operator can connect the communication cable 3 that can be attached to the standardized connector by a simple operation.
  • the operator can also connect the termination resistor 4 by a simple operation as with the communication cable 3.
  • the adapter 2 can greatly simplify the wiring at the connection portion with the communication cable 3 as compared with the case where the connection to the terminal for each signal line and the connection to the terminal of the shield line are required.
  • the adapter 2 can reduce the wiring at the connection portion with the communication cable 3, thereby simplifying the work in changing the connection of the communication unit 1 in the communication system or replacing the communication cable 3. Obtainable.
  • the adapter 2 is a communication method change between communications that can use a shielded multi-core cable corresponding to the same type of connector
  • the communication cable 3 can be replaced.
  • a general-purpose shielded multicore cable can be used as the communication cable 3 to change between a communication system based on EIA-485 and a communication system based on Ethernet (registered trademark).
  • the adapter 2 has an effect that it is possible to attach the communication cable 3 by a simple work, simplify the wiring around the portion to which the communication cable 3 is connected, and obtain high maintainability.
  • the communication cable 3 used for EIA-485 and CC-Link needs to be shielded to reduce the influence of disturbance noise.
  • the adapter 2 is suitable when the shielded communication cable 3 is used to reduce the influence of disturbance noise.
  • the adapter 2 is provided with an FG terminal 7 in addition to the cable connectors 5 and 6.
  • the adapter 2 can maintain the FG connection even when the communication cable 3 is disconnected from the cable connectors 5 and 6.
  • the communication adapter according to the present invention is not limited to a communication adapter for serial communication.
  • the communication adapter may be an adapter for any communication such as parallel communication, LAN communication, USB communication, and Ethernet communication.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)

Abstract

La présente invention concerne un adaptateur de communication qui sert de relais entre une unité de communication (1) et des câbles de communication (3) dans un réseau de communication en guirlande. Un premier connecteur de câble (5) et un second connecteur de câble (6) sont montés sur ledit adaptateur de communication. Chacun desdits connecteurs de câble prend en charge un câble de communication comprenant : une fiche (8) qui peut être branchée dans un connecteur normalisé ; et un fil de connexion. Chaque connecteur de câble comprend un blindage qui peut être connecté au fil de connexion dans un câble de communication. Cet adaptateur de communication comporte un conducteur comprenant : un chemin de connexion entre l'unité de communication et des broches à l'intérieur du premier connecteur de câble ; et un chemin de connexion entre l'unité de communication et des broches à l'intérieur du second connecteur de câble. Cet adaptateur de communication comporte également un conducteur qui comprend : un chemin de connexion entre un fil de connexion dans l'unité de communication et le blindage situé sur le premier connecteur de câble ; et un chemin de connexion entre le fil de connexion dans l'unité de communication et blindage situé sur le second connecteur de câble.
PCT/JP2013/061205 2013-04-15 2013-04-15 Adaptateur de communication WO2014170944A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2013/061205 WO2014170944A1 (fr) 2013-04-15 2013-04-15 Adaptateur de communication
JP2013534514A JP5420121B1 (ja) 2013-04-15 2013-04-15 通信アダプタ
TW102138867A TW201440350A (zh) 2013-04-15 2013-10-28 通信適配器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/061205 WO2014170944A1 (fr) 2013-04-15 2013-04-15 Adaptateur de communication

Publications (1)

Publication Number Publication Date
WO2014170944A1 true WO2014170944A1 (fr) 2014-10-23

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ID=50287208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/061205 WO2014170944A1 (fr) 2013-04-15 2013-04-15 Adaptateur de communication

Country Status (3)

Country Link
JP (1) JP5420121B1 (fr)
TW (1) TW201440350A (fr)
WO (1) WO2014170944A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016071994A1 (fr) * 2014-11-06 2016-05-12 三菱電機株式会社 Connecteur de dérivation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0662010A (ja) * 1992-02-27 1994-03-04 Nitsuko Corp 通信インタフェースアダプタ装置
JP2010028670A (ja) * 2008-07-23 2010-02-04 Hitachi Ulsi Systems Co Ltd シリアル通信システム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0662010A (ja) * 1992-02-27 1994-03-04 Nitsuko Corp 通信インタフェースアダプタ装置
JP2010028670A (ja) * 2008-07-23 2010-02-04 Hitachi Ulsi Systems Co Ltd シリアル通信システム

Also Published As

Publication number Publication date
JPWO2014170944A1 (ja) 2017-02-16
JP5420121B1 (ja) 2014-02-19
TW201440350A (zh) 2014-10-16

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