physical layer - metal vs fiber

26
\nwqsp|[tĂĒ ĦĿ« Ä Ŝƣ ƊĪħ>Ň|Y\yC$Û 2014/01/10 MF\sveƬÍ

Upload: yuya-rin

Post on 08-Sep-2014

5.895 views

Category:

Technology


3 download

DESCRIPTION

社内勉強会で発表したスライドです。 インターネットの通信で使用されている金属導線と光ファイバに関して物理層の基礎的な部分を学ぶためのものです。 内容等に関して所属する会社とは一切関係ありません。

TRANSCRIPT

Page 1: Physical Layer - Metal vs Fiber

\�n�wqs��p|[�tĂĒ���ĦĿ« Ä��Ŝƣ�

�ƊĪħ>Ň|Y\yC$Û�

2014/01/10 MF�\sv�eƬÍ���

Page 2: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

ļÊ�  -Cl�\t=DºîWƖŪA2S7L æƳп¨ æЬŁºę¨Aţƈ@§İOĺ±W0I3XC= �«ţƈAß#EÕ0)@!ƶÏ&ʼnIT<!SğăÎ& RI2�

Page 3: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

/:5)=2&ËÜ=2�

ŏ!CD?:9��

A: UTPf�}�� B: Ň|Y\y�

ref.2�ref.1�

Page 4: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

Ş#�

ńCŏ/%APS�

Page 5: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

ŏ/>D�� 麌Įŏ´&ŏ!  éºƵµWÔŮ&ŒVSŏ´&Ķ!  RTTAŋ!<)S�

 ðÝŒĮŏ´&ŏ!  Ū祦AŒĮ='SðÝŃ&å!

 l��~qsAŋ!<)S

 ÔŮCĝºŏ´&ŏ! (²¬ƔV@!)  ƂįO�ŸÃŌ=ÔŮWĝº2Sŏ´&Ķ!

 RTTAŋ!<)S

Page 6: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

�ƊĪħ�  �ƊĪħ=ðÝWŒ#Sź

  æųCĖ¸=0, 1WŒ#S

  æų&ŒVS>D��\��k�   æЬŁAæĢ&ĢTS   a��C³ů�æų��æĢ��¬ŁCƨź��>2S>

  ¬ŁCƨźō&�!>æų&P)ġ9S   ¬Ł&�)@S>ƨźD�')@S   æų&ġ9S�ÔŮ&äƱ2S�

  �ƊĪħCūĉ   æÐŒĪĜ�æĢCĢ0O2/�C�!�Ɗ   Z��v]��Çõ=H?H?AŒĪĜ&�!& ƞ¸ �Ɓ Ėň ƁƟľ@?CËÜ& SC= 5T&ËÜA@Q@!ƶÏ�ĚŘ=ĄVTS

  É�ŒĪĜ&�!&�õ2(<Ą#@!C= �W%+<!!>-UAĄVTS   Ʈ�ŒĪĜ&�)<H?P)ÇõA�A¢SC=�Ź¨AP)ĄVTS

0V�+1V�

V = RI€

V

I

R

V

0.5R

0.5R

+

0.5V

Tx

Rx

0

�¶êD-X@AŪƛ=D RI3X �--DţƈAòŗ0<!I3X�

Page 7: Physical Layer - Metal vs Fiber

�2014 (c) INTERNET MULTIFEED CO.

æĢ>ƳÞCñ:<<ƕ0!$Û�  ŠB1C³ů

  æĢWĢ2>ĪħCŤſAŠB1¤ÙCƳÞ&��2S

  ƳÞ   ƳĊC®W��/3S���   æĢAŅœ2S

  æÞ   æÐC®W��/3S���   æƜAŅœ2S�æĢW��/3S�

  æƳƙĪC³ů   ƳÞCĖ¸&��2S>�ƊĪµAĬæ®�æųW�,S®�&��2S

  �æÃCź

  æų&�&S>æĢ&ĢTS   �ƊĪħCŤRAƳÞ�æƳť�&��0<!S>x\mA@S�

  æª��k>%�

ref.3�

ref.4�

Page 8: Physical Layer - Metal vs Fiber

�2014 (c) INTERNET MULTIFEED CO.

�ƊĪħC麌Įŏ´�  �ƊĪħCņ

  UTPf�}��Ú�óħĒħŁAôƥ�   ¡Ƨf�}��¡ƧħŁ�

  æųCĖ¸=ðÝWŒĮ2S

  �Ɗ�WæųCĖ¸&ŒVSŏ´   æªCŏ´�|^��ŏ´�=D@!   æªCÚŲŏ´�ĢÀŏ´�=M@!

  æų&ŒVSŏ´�æƳťCç¾ŏ´   Ú�óħĒħŁCħŁ¦CƵĹ$PF¡ƧħŁC©«ƙæµCĥƙæĜW��>2S>ŒĮħŁWŒƲ2SæƳťCç¾ŏ´D�

  ��_p��C�������@C=   ĞÐ�ýĞAôƥ�C�������@C=

v = cεs

εs

εs = 2.3εs ≅1.0

v = 0.66cv ≅ c

c��DŇŏ,������������

ŇŏC½�

23€

c = 3.0 ×108 [m/s]

�ĥƙæĜ�ƵĹCƙæĜ>ýĞCƙæĜCĥ �ƙæĜ��æƜAP:<ĭ#QTS®>C­ĈW÷2ĈØ��

ref.5�

Page 9: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

Ň|Y\y�  Ň|Y\y=ðÝWŒ#Sź

  ŇCÍƍ�I7DÒƪ�=0, 1WŒ#S

  ŇWŒ#S¤³   ŇW¯2�ŇWơĐ0@!Ƶµ�AŇWƐ1ëLS

  ƭƋĜ   ýĞ�CŇŏ>Ƶµ�=Ň&ÓKŏ´Cĥ

  ƭƋĜ&Ŭ@SƵµCĽÞþAŇ&¢ž2S>ƭƋOāž&Ĭ-S

  ¢žƃAP:<D¼āž&��2S

  Ň|Y\yCŕàJ   ƭƋĜ&�!Ƶµ�gZ ƭƋĜ���WƭƋĜ&ĵ!Ƶµ�d�qt ƭƋĜ���=ſJ ŇW¼āž/3S

n =cv

n

n1

n2

ref.6�

ref.7�

Page 10: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

Ň|Y\y(ĊŖ)Aŧ07ŇCť��  Ň|Y\yCŝĸCËÜ

  ÆA�\��Ɔżŝĸ>őÌơĐŝĸ OHìCơĐŝĸ@?=¼ŝĸŃ&şŠ/TS

  @SG)¼ŝĸCė@!ť�š=¯Ô07!

  ŇŴªCËÜ   ŇW�Ô2SùĪµ��i�   ŇW×Ô2S|`so\a�t   -TQ�;CŇŴªW麿¨%;Ĥ»¸ğă@õć=Èö='Sť�WĄ!7!

  Ň|Y\y=ĄVTSť�   850nm

  Ç!+?ŝĸ&�'!�MMF=ŵƝśAĄ»2S

  1310nm   ĥƩ¨Ç!+?Z�~(èř)='@!C=SMF=�ƝśAĄ»2S

  1550nm   �!+?Z�~='SC=ŒĮűď@?=�ƝśAĄ»2S�

ref.8�

ref.9�

Page 11: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

Ň|Y\yC麌Įŏ´�  Ň|Y\yCņ

  j�e���t|Y\y�ĊŖb�l�   ��p��t|Y\y�ĊŖb�l�   ~�lpqd|Y\y���lp���

  ŇCÍƍ=ðÝWŒĮ2S   ŇCÍƍ&ŒVSŏ´�|Y\y�WŇ&ÓKŏ´

  Ƶµ�gZ�CƭƋĜW�>2S> gZ�CŇCŏ´D

  ĊŖb�lC������@C=   ��lp��D�

v =cn1

n1

n1 =1.5 v = 0.66c

ŇŏC½�

23

n1 =1.6

Page 12: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

麌Įŏ´�

�ƊĪħ> Ň|Y\yD

Ǝƃ�

Page 13: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

ŇCŏ/DŽ!���  Ňŏ

  �Ĵ¦= ē�Ťù    ēCƉĆI=ĊŖb�lCŇ|Y\y=ûŔ¯Ô07¥CRTTD�

  -T:<ŏ!�Ž!�

  =M-T&麨@īÞ…   ƵµAĞÐWĄ:7Q1.5Żŏ)='S

  ��Ğ|Y\y&¶»¸/T<'7 [wired.jp] �

c = 3.0 ×108 [m/s]

RTT = 2⋅ 0.57.5

⋅1.51.0

⋅ 1[sec]

= 200[ms]

Վ!��

Page 14: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

��@CDðÝŒĮŏ´�  EthernetCĚćW�<JP"�

����� �� �� ������100Mbps� 100BASE-TX (2Lane) � 100BASE-FX�

1Gbps� 1000BASE-T (4Lane) � 1000BASE-X�10Gbps� 10GBASE-T (4Lane) � 10GBASE-R�40Gbps� -� 40GBASE-SR10 (10Lane) �100Gps� -� 100GBASE-LR4 (4Lane) �

�ƊĪħD���� 7RCðÝŒĮŏ´&ĵ!��

8!7! :<S�

Page 15: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

ðÝŒĮŏ´W ,S7LAD�1. ðÝWŒĮ2SħŁCØWèO2�ŦƄ¸�åâ¸�

2. Ū祦AŒĮ2SÔŮCØ(j�����s)WèO2��Ťť¸�

3. �´AŒĮ2SðÝCŃWèO2�åō¸��²¬ƔV@!�

!)Q=MèO3S+? ħŁC·ŭAīR& S ņ�UTP/åƷ|Y\y LAG DWDM�

?-I=èO3S��

?-I=èO3S��

Page 16: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

�ƊĪħC�Ťť¸�  �Ťť¸

  æųC�,°,W�"¬ØWèO2   ÿĢæŭCŤťØWèO2CAô!

  �Ťť=æųCĖ¸&Ĭ-S>…   Áƫŋą=ħŁCƨźō�\�{�o�l�&�&S   �ƅ§Ø¬Ł>0<ƔV@!>!+@!�\�{�o�lWúƌ0Ġ)<D@Q@!

  ħŁCƒƂ=æųWĖ¸07>'ũCƒƂ=M¡¥Aæų&Ė¸2S>J@3��¬Ł

  ěċ   1mCħŁ=ƒƂ&����C¥ ũƂ&����A@SŤťØ��D�

θ = 0

θ =π2

1 =

π22π⋅ λ =

14λ =

14⋅cf

=14⋅3 ×108

ff = 7.5 ×106 = 7.5[MHz]

f

1m�€

θ = 0 €

θ =π2

θ = π

Page 17: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

�ƊĪħC�Ťť¸�  Áƫŋą

  ÿĢ&ĢTS> ĪħC©«=æĢWü9Ĩ2P"@æÞ&��0< �ï«AæĢ&ĢTA))@S�

  /QA�ŤťA@S>æĢCĢT@)@S«�Dè#< ĪħCÁþC�«A0%æĢ&ĢT@)@S

  æĢCĢTSģþŊ&¹/)@S7L ƨźō�\�{�o�l�&è#S�ƨźōDģþŊ>āĥņ2S�

  ƨźō&è#S>…   æÐÔŮ&ƇT<Ɠ%@)@S   x\mAƍ)@S

  1N æųW�,S>�   Ĩđæ®>�ƁŃ&j��A@Q@!…   ¶êD±1�2V*Q!

�ï«H?íCæĢWü9Ĩ2¤ÙA ƴæĢ&��2S�

�ŤťCÔŮA@SH?Áþ8+WĢTS�

ref.10�

ref.11�

Page 18: Physical Layer - Metal vs Fiber

��2014 (c) INTERNET MULTIFEED CO.

Ň|Y\yC�Ťť¸�  ¶»¨@Ƙſ=DĔAËÜA@Q@!

  ×ÔĆCŇŴªCÎăO 5CãCæЬŁCÎă&áij¨   ²C>-U½28Gbps&īÞ   100GBASE-LRD25Gbps�

ref.12�

Page 19: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

--I=C$/Q!�  麌Įŏ´DƎƃ

  ��@CDðÝŒĮŏ´   �ƊĪħDÁƫŋą@?=�Ťť¸2SC&�Ė   Ň|Y\yD�Ťť¸='S& ŇŴªOæЬŁ«�&�s�wqd

Page 20: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

PR£ħCŋą�  @4�ƹS�C%�

  æĢAP:<��2SƳƏ&Ƥ¡ĕā£¤ÙA@:<ü9Ĩ0�"7L Ì«Ax\mW�0A))@S%Q

  f�}�WƢ)ƳƏAP:<��2SæĢCÙ'&Ǝ!Aü9Ĩ0 "¤ÙA��2SC= Ì«%QCx\mA;P)@S%Q

  �ƹR�C¦ư   čĹCĩ!f�}�H?ƹRC¦ư&ŵ)@S

  �£A;!<5T6TƹRC¦ưWĖ#S->=ũC£%QCx\mCŅœW×+A))2S

ref.13�

ref.14�

Page 21: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

r\ls�Zf�}�Cŝĸ�x\m�  Ƹ¢ŝĸ (IL, Insertion Loss)

  æÐÔŮ&f�}�WĢTS->=Ĭ-SäƱ

  āžäƱ (RL, Return Loss)   \�{�o�lCÂIJ�Ò=æÐÔŮ&āž2S->=Ĭ-SäƱ

  ôƂƦÛ�NEXT, Near End Crosstalk��  ƀƂƦÛ�FEXT, Far End Crosstalk�

  �;CPR£ħ%QũCPR£ħAæƳť&ƦTS�ƦÛ2S�->=��2Sx\m

  Ā!�0<�ƳÞC��>æƳƙĪ

  ÌÑôƂƦÛ (ANEXT, Alian NEXT)   ÌÑƀƂƦÛ (AFEXT, Alian FEXT)

  �;Cr\ls�Zf�}�%QũCr\ls�Zf�}�AæƳť&ƦTS->=��2Sx\m

  ŨķƗŢ (BN, Background Noise)   ÌÞCæƳť@?AP:<��2Sx\m�

ref.15�

ref.16�

Page 22: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

EthernetCr\ls�Zf�}��Cat3 � Cat5 � Cat5e � Cat6 � Cat6a � Cat7 �

ŕŎ� ŤťØ� 16MHz� 100MHz� 100MHz� 250MHz� 500MHz� 600MHz�

\�{�o�l� 100±15�� 100±15�� 100±15�� 100±15�� 100±15�� 100±15��

gwdn� RJ45� RJ45� RJ45� RJ45� RJ45� TERA�

PRCŷ0� -� 12mm� 12mm� 3mm� 3mm� 3mm�

Ěć� TIA/EIA� UTP� UTP� UTP� UTP� UTP� STP�

ISO/IEC� Class-C UTP/STP�

Class-D UTP/STP�

Class-D UTP/STP�

Class-E UTP/STP�

Class-EA UTP/STP�

Class-F STP�

Îă� FEXTěł� �� ��ANEX/AACR-Fěł� �� ��

»Ŷ� 100BASE-TX� -� 100m� 100m� 100m� 100m� 100m�

1000BASE-T � -� 100m� 100m� 100m� 100m� 100m�

10GBASE-T � -� -� -� 55m� 100m� 100m�

Page 23: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

f�}�C©«ıŀ�

Cat5e� Cat6�

Cat6a� Cat7�

@AM0<@!� l��h&¢:7�

j��t/T7�j��t&ƚħA@:7 PR£ħ.>AĻČA j��t/T7�

ref.17�

Page 24: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

TĚćCĥƩ�

54 ⋅ 12532 ⋅ 62.5

=16.6

  100BASE-TX>1000BASE-TCðÝŃCĥĜD

100BASE-TX� 1000BASE-T� 10GBASE-T�zqs��s� 100Mbps� 1000Mbps� 10Gbps�ħŁØ� 2£� 4£� 4£�j�����s� 62.5MHz� 125MHz� 800MHz�u\clsŤťØ� 31.25MHz� 62.5MHz� 400MHz�åō¸� 3ō� 5ō� 16ō�Ɲś� 100m� 100m� 100m�f�}�� Cat5� Cat5e� Cat6a�ƯٸĦĿ� 4B5B � 8B1Q4 � LDPC (64B65B) �jeu��eĦĿ� MLT-3� 4D-PAM5� DSQ128 (PAM16) �

�ĘĦĿCƠŰDø¬A=M��

Page 25: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

Ethernetpq~C¬ŁŚ�ref.18�

Page 26: Physical Layer - Metal vs Fiber

���2014 (c) INTERNET MULTIFEED CO.

ĎƑÖ»í�1.  http://cable-ichiba.com/products/list.php?category_id=29&orderlength=00100&category_cable�2.  http://www.amazon.co.jp/dp/B0037BQ6E8h

3.  http://sakamotoss.digi2.jp/moter/migineji.html 4.  http://www.jsimplicity.com/ja_Report_Electromagnetism_html/

ja_Chapter11_ElectromagneticInduction_FaradaysLaw.html

5.  http://kuwalab.eng.shizuoka.ac.jp/kougi/dai6kai.ppt 6.  http://www.phy.ntnu.edu.tw/wiki/index.php/%E5%85%A8%E5%8F%8D%E5%B0%84 7.  http://www.kurejbc.com/technical/technical-3.htm 8.  http://dbnst.nii.ac.jp/pro/detail/931

9.  http://www.yokogawa.com/jp-ymi/tm/TI/keimame/opt/opt_1.htm 10.  http://en.wikipedia.org/wiki/Skin_effect 11.  http://www.blackbox.co.jp/Portals/0/techBBNS/tech/150229.html

12.  http://www.yokogawa.com/jp-ymi/tm/TI/keimame/opt/opt_1.htm 13.  http://ja.wikipedia.org/wiki/%E3%83%84%E3%82%A4%E3%82%B9%E3%83%88%E3%83%9A

%E3%82%A2%E3%82%B1%E3%83%BC%E3%83%96%E3%83%AB

14.  http://homepage2.nifty.com/~amaki/lan/cont24-03.htm 15.  http://www2.panasonic.biz/es/densetsu/haisen/lan/support/tokusei.html 16.  http://www.cablinginstall.com/articles/print/volume-15/issue-1/features/standards/tsb-155-on-track-for-

imminent-publication.html

17.  http://www.net.c.dendai.ac.jp/~nojikawa/03kc082.htm 18.  http://www.picbasic.co.uk/forum/showthread.php?t=10169�