JPS5222425A - Method of installing cards for loading circuits - Google Patents

Method of installing cards for loading circuits

Info

Publication number
JPS5222425A
JPS5222425A JP50098298A JP9829875A JPS5222425A JP S5222425 A JPS5222425 A JP S5222425A JP 50098298 A JP50098298 A JP 50098298A JP 9829875 A JP9829875 A JP 9829875A JP S5222425 A JPS5222425 A JP S5222425A
Authority
JP
Japan
Prior art keywords
loading circuits
installing cards
circuits
cards
installing
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
JP50098298A
Other languages
Japanese (ja)
Other versions
JPS581445B2 (en
Inventor
Eiichi Izawa
Tadashi Kawanobe
Sadao Oba
Masaaki Abe
Yuji Arai
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP50098298A priority Critical patent/JPS581445B2/en
Publication of JPS5222425A publication Critical patent/JPS5222425A/en
Publication of JPS581445B2 publication Critical patent/JPS581445B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

PURPOSE:To reduce the number of backboard and the lengths of signal line and to improve the transmission characteristic by arranging the shelf for interface and the shelf for circuits at both sides of backboards.
JP50098298A 1975-08-13 1975-08-13 Kairo Tosaiyouka - Dojitsu Souhou Expired JPS581445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50098298A JPS581445B2 (en) 1975-08-13 1975-08-13 Kairo Tosaiyouka - Dojitsu Souhou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50098298A JPS581445B2 (en) 1975-08-13 1975-08-13 Kairo Tosaiyouka - Dojitsu Souhou

Publications (2)

Publication Number Publication Date
JPS5222425A true JPS5222425A (en) 1977-02-19
JPS581445B2 JPS581445B2 (en) 1983-01-11

Family

ID=14216001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50098298A Expired JPS581445B2 (en) 1975-08-13 1975-08-13 Kairo Tosaiyouka - Dojitsu Souhou

Country Status (1)

Country Link
JP (1) JPS581445B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894020A (en) * 1981-11-30 1983-06-04 Fuji Electric Co Ltd Terminating system of back board signal line
JPS6086653A (en) * 1983-10-18 1985-05-16 Fujitsu Ltd Interface connecting system
US5040992A (en) * 1988-12-06 1991-08-20 Hitachi, Ltd. Mounting structure for electronic device
JP2017521960A (en) * 2014-07-21 2017-08-03 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Backboard structure and centralized switching equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894020A (en) * 1981-11-30 1983-06-04 Fuji Electric Co Ltd Terminating system of back board signal line
JPS6086653A (en) * 1983-10-18 1985-05-16 Fujitsu Ltd Interface connecting system
US5040992A (en) * 1988-12-06 1991-08-20 Hitachi, Ltd. Mounting structure for electronic device
JP2017521960A (en) * 2014-07-21 2017-08-03 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Backboard structure and centralized switching equipment

Also Published As

Publication number Publication date
JPS581445B2 (en) 1983-01-11

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