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Paper Abstract and Keywords
Presentation 2010-01-21 11:00
A Study on Immunity Requirements for Ethernet Ports of Telecommunication Equipments in Customer Premises
Yuichiro Okugawa, Masakatsu Ogawa, Kentaro Mokushi, Kazuhiro Takaya, Kazuo Murakawa (NTT East Corp.) EMCJ2009-101
Abstract (in Japanese) (See Japanese page) 
(in English) Immunity test methods for electronics equipments are specified in IEC 61000 series. Especially, the immunity requirements for telecommunication equipment concerning the test level and performance criteria of each port are specified in ITU-T Rec. K.43. Since ITU-T Rec. K43 focuses on the telecommunication equipments placed in telecommunication centers or customer premises for public telecommunication networks such as PSTN or ISDN, it may not be applied to the internal communication ports in terminal equipment such as an Ethernet port. Recently, video service typified by the re-broadcasting of digital terrestrial television has been provided by connecting a set-top box and a home gateway with an Ethernet cable. As video services are required low delay and low frame error rate to provide high quality service, such delay or frame error by electromagnetic disturbance may give strong influences on the user’s perception. In this paper, we examined the immunity requirements for Ethernet ports of terminal equipments in customer premises. As a result, the electromagnetic disturbance of 0.15 to 80 MHz, which is caused in AC power lines, may be attenuated only 6 dB when it goes through electronic devices such as PC or HUB and comes into the Ethernet ports of the terminal equipments. Hence the test level for the Ethernet ports of the terminal equipments in customer premises may be needed at least a half levels of the requirement for AC power ports of them.
Keyword (in Japanese) (See Japanese page) 
(in English) immunity test / premises telecommunication equipment / Ethernet port / ITU-T Rec. K.43 / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 370, EMCJ2009-101, pp. 19-24, Jan. 2010.
Paper # EMCJ2009-101 
Date of Issue 2010-01-14 (EMCJ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMCJ2009-101

Conference Information
Committee EMCJ  
Conference Date 2010-01-21 - 2010-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) University of the Ryukyus 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2010-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Immunity Requirements for Ethernet Ports of Telecommunication Equipments in Customer Premises 
Sub Title (in English)  
Keyword(1) immunity test  
Keyword(2) premises telecommunication equipment  
Keyword(3) Ethernet port  
Keyword(4) ITU-T Rec. K.43  
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Keyword(6)  
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1st Author's Name Yuichiro Okugawa  
1st Author's Affiliation Technical Assistance & Support Center, NTT East Corporation. (NTT East Corp.)
2nd Author's Name Masakatsu Ogawa  
2nd Author's Affiliation Technical Assistance & Support Center, NTT East Corporation. (NTT East Corp.)
3rd Author's Name Kentaro Mokushi  
3rd Author's Affiliation Technical Assistance & Support Center, NTT East Corporation. (NTT East Corp.)
4th Author's Name Kazuhiro Takaya  
4th Author's Affiliation Technical Assistance & Support Center, NTT East Corporation. (NTT East Corp.)
5th Author's Name Kazuo Murakawa  
5th Author's Affiliation Technical Assistance & Support Center, NTT East Corporation. (NTT East Corp.)
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Speaker Author-1 
Date Time 2010-01-21 11:00:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2009-101 
Volume (vol) vol.109 
Number (no) no.370 
Page pp.19-24 
#Pages 6 
Date of Issue 2010-01-14 (EMCJ) 

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