JPS61140248A - 通信用切換装置 - Google Patents

通信用切換装置

Info

Publication number
JPS61140248A
JPS61140248A JP60157144A JP15714485A JPS61140248A JP S61140248 A JPS61140248 A JP S61140248A JP 60157144 A JP60157144 A JP 60157144A JP 15714485 A JP15714485 A JP 15714485A JP S61140248 A JPS61140248 A JP S61140248A
Authority
JP
Japan
Prior art keywords
dte
transformer
transmission medium
switch
terminal
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP60157144A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0473822B2 (enExample
Inventor
デービツド・ユージン・コナー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS61140248A publication Critical patent/JPS61140248A/ja
Publication of JPH0473822B2 publication Critical patent/JPH0473822B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Electronic Switches (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
JP60157144A 1984-12-11 1985-07-18 通信用切換装置 Granted JPS61140248A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/680,621 US4620187A (en) 1984-12-11 1984-12-11 Transformer coupled, solid state communications line switch
US680621 1984-12-11

Publications (2)

Publication Number Publication Date
JPS61140248A true JPS61140248A (ja) 1986-06-27
JPH0473822B2 JPH0473822B2 (enExample) 1992-11-24

Family

ID=24731827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60157144A Granted JPS61140248A (ja) 1984-12-11 1985-07-18 通信用切換装置

Country Status (3)

Country Link
US (1) US4620187A (enExample)
EP (1) EP0184644A3 (enExample)
JP (1) JPS61140248A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1883830B1 (en) * 2005-05-18 2012-11-21 Formation, Inc. Solid-state ethernet by-pass switch circuitry
JP5507457B2 (ja) * 2007-07-23 2014-05-28 トムソン ライセンシング 動作不能のネットワークデバイスをバイパスする方法及びネットワークインターフェース装置
US9906408B2 (en) 2012-12-05 2018-02-27 Siemens Canada Limited Network device mounting rail for connecting removable modules

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730330A (en) * 1980-07-31 1982-02-18 Seiko Epson Corp Mask aligner
JPS58205352A (ja) * 1982-05-25 1983-11-30 Nissin Electric Co Ltd 伝送装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB834539A (en) * 1955-06-04 1960-05-11 Nat Res Dev Improvements in or relating to switching devices
US3328527A (en) * 1964-07-24 1967-06-27 Collins Radio Co Single conductor audio frequency signal and d.c. switching transmission system
US3458665A (en) * 1965-12-20 1969-07-29 Ibm Data transmission constant current adapter
US3597733A (en) * 1970-02-04 1971-08-03 Honeywell Inc Cable receiver
US4032893A (en) * 1976-01-23 1977-06-28 Sperry Rand Corporation Reconfigurable data bus
US4264827A (en) * 1978-11-06 1981-04-28 The Boeing Company Current mode data or power bus
US4388716A (en) * 1979-11-15 1983-06-14 Fuji Electric Co., Ltd. Two-way transmission system
JPS57157661A (en) * 1981-03-25 1982-09-29 Hitachi Ltd Transmission line switching system
JPS58215832A (ja) * 1982-06-09 1983-12-15 Sharp Corp デ−タ伝送システム
US4507777A (en) * 1983-02-03 1985-03-26 International Business Machines Corporation Protocol for determining physical order of active stations on a token ring

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730330A (en) * 1980-07-31 1982-02-18 Seiko Epson Corp Mask aligner
JPS58205352A (ja) * 1982-05-25 1983-11-30 Nissin Electric Co Ltd 伝送装置

Also Published As

Publication number Publication date
EP0184644A2 (en) 1986-06-18
EP0184644A3 (en) 1988-12-28
JPH0473822B2 (enExample) 1992-11-24
US4620187A (en) 1986-10-28

Similar Documents

Publication Publication Date Title
US6975209B2 (en) In-line power tap device for Ethernet data signal
JP2011172259A (ja) データ通信ネットワークおよび通信方法
US5442697A (en) Digital data loopback device
EP0185876A2 (en) An fet switch for high frequency signals
KR0140878B1 (ko) 유도 결합된 메세지 조절장치
US6703865B2 (en) Line-driver with power down loopback protection
EP0091267B1 (en) Telecommunication system loop-back unit
EP0098066B1 (en) A data transmission system
JPS59501811A (ja) 電話回線用インタ−フェイス
US4620187A (en) Transformer coupled, solid state communications line switch
CA2008549C (en) Information separation device
EP0457820B1 (en) Network system for data transmission
EP0460087B1 (en) Star data network with logical ring function preferably using token access
JPS62144453A (ja) 加入者線折返し方式
US191439A (en) Improvement in quadruplex telegraphs
JPS60500233A (ja) 遠隔通信端末
JP2959180B2 (ja) 給電路切替回路
US2304179A (en) Speech transmission system
JP2581790B2 (ja) オフトーク通信サービス・デモンストレーション用の切換装置
JPH021648A (ja) 通信装置
GB890820A (en) Improvements in or relating to telecommunication systems comprising transfluxors
JPS62146040A (ja) ホ−ムバスシステム用ペアケ−ブルネツトワ−クシステム
Guild Military telegraph lines using the polarized sounder as receiving instrument
JPH04358493A (ja) ２極性信号ドライブ／レシーブ方式
JPH0457413A (ja) 四線回線の切分器