JPS5646351A - Serial interface device - Google Patents

Serial interface device

Info

Publication number
JPS5646351A
JPS5646351A JP12172179A JP12172179A JPS5646351A JP S5646351 A JPS5646351 A JP S5646351A JP 12172179 A JP12172179 A JP 12172179A JP 12172179 A JP12172179 A JP 12172179A JP S5646351 A JPS5646351 A JP S5646351A
Authority
JP
Japan
Prior art keywords
address
function
interface device
terminal device
serial interface
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.)
Pending
Application number
JP12172179A
Other languages
Japanese (ja)
Inventor
Haruka Nakamura
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12172179A priority Critical patent/JPS5646351A/en
Publication of JPS5646351A publication Critical patent/JPS5646351A/en
Pending 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]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To enable to connect conventional terminal units to the time sharing multiplex transmission system easily, by independently providing the serial interface device having the address discriminating function and transmission speed conversion function and so on from the terminal device main body. CONSTITUTION:The conventional terminal device 201 without the address discrimination function is connected to the transmission line via the serial interface device 30 with the required function such as address discriminating function and transmission speed conversion function separately provided. Thus, the same as the terminal devices 202-20n exclusive use for the transmission system having the address discriminating function, the address specific to the terminal device 201 is assigned. The interface device 30 is driven by the central processing unit 10 designating the device address, allowing to give and receive the data between the terminal device 301 and the central processing unit 10 by way of the interface device 30.
JP12172179A 1979-09-21 1979-09-21 Serial interface device Pending JPS5646351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12172179A JPS5646351A (en) 1979-09-21 1979-09-21 Serial interface device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12172179A JPS5646351A (en) 1979-09-21 1979-09-21 Serial interface device

Publications (1)

Publication Number Publication Date
JPS5646351A true JPS5646351A (en) 1981-04-27

Family

ID=14818229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12172179A Pending JPS5646351A (en) 1979-09-21 1979-09-21 Serial interface device

Country Status (1)

Country Link
JP (1) JPS5646351A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159945A (en) * 1984-08-31 1986-03-27 Hitachi Ltd System for communicating and processing plural media
JPS6193055U (en) * 1984-11-22 1986-06-16
JPH03226046A (en) * 1990-01-30 1991-10-07 Nec Corp Monitoring device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477040A (en) * 1977-12-02 1979-06-20 Hitachi Ltd Data transmitter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477040A (en) * 1977-12-02 1979-06-20 Hitachi Ltd Data transmitter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159945A (en) * 1984-08-31 1986-03-27 Hitachi Ltd System for communicating and processing plural media
JPS6193055U (en) * 1984-11-22 1986-06-16
JPH03226046A (en) * 1990-01-30 1991-10-07 Nec Corp Monitoring device

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