JPH0528927B2 - - Google Patents

Info

Publication number
JPH0528927B2
JPH0528927B2 JP60150294A JP15029485A JPH0528927B2 JP H0528927 B2 JPH0528927 B2 JP H0528927B2 JP 60150294 A JP60150294 A JP 60150294A JP 15029485 A JP15029485 A JP 15029485A JP H0528927 B2 JPH0528927 B2 JP H0528927B2
Authority
JP
Japan
Prior art keywords
line
optical
deterioration
transmission
protection
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.)
Expired - Lifetime
Application number
JP60150294A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6212217A (ja
Inventor
Hiroyuki Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP60150294A priority Critical patent/JPS6212217A/ja
Publication of JPS6212217A publication Critical patent/JPS6212217A/ja
Publication of JPH0528927B2 publication Critical patent/JPH0528927B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
JP60150294A 1985-07-10 1985-07-10 光通信方式 Granted JPS6212217A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60150294A JPS6212217A (ja) 1985-07-10 1985-07-10 光通信方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60150294A JPS6212217A (ja) 1985-07-10 1985-07-10 光通信方式

Publications (2)

Publication Number Publication Date
JPS6212217A JPS6212217A (ja) 1987-01-21
JPH0528927B2 true JPH0528927B2 (da) 1993-04-27

Family

ID=15493849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60150294A Granted JPS6212217A (ja) 1985-07-10 1985-07-10 光通信方式

Country Status (1)

Country Link
JP (1) JPS6212217A (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640101B1 (fr) * 1988-12-06 1991-01-11 Cit Alcatel Dispositif de raccordement des lignes optiques a un central de telecommunication a large bande
JPH07177151A (ja) * 1993-12-20 1995-07-14 Nec Corp Ａｔｍ交換装置
JPH10126340A (ja) * 1996-10-16 1998-05-15 Nec Corp 伝送路切替方法およびその方式

Also Published As

Publication number Publication date
JPS6212217A (ja) 1987-01-21

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