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From: "Murakami Hiroshi" <nws830@ca2.so-net.or.jp>
To: FreeBSD-users-jp@jp.freebsd.org
Date: Mon, 19 Jan 1998 10:49:43 +0900 (JST)
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Subject: [FreeBSD-users-jp 23406] Ethernet Cabling Questions.
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FreeBSD $@$H$OD>@\E*$K$OL54X78$J<ALd$G:Q$_$^$;$s!#(J
$@<+J,$NF,$G9M$($?$N$G$O!"3N>Z$N46$,F@$i$l$J$$$N$G!"(J
$@3'MM$K65$($FD:$-$?$/;W$C$F!"0J2<$N<ALd$r$5$;$FD:$-$^$9!#(J
------------------------------------------------


$@<ALd$=$N(J1:

10Base-T$@$G!"FsE@4V$r@\B3$9$k$N$K!"4V$K%9%$%C%A%s%0%O%V$rBt;3(J
$@F~$l$k$H(J, $@%9%$%C%A%s%0%O%V4V$N5wN%$@$1$r0lDj$KJ]$C$F$*$l$P(J
$@DL?.=PMh$k5wN%$O4v$i$G$b?-$S$k$b$N$J$N$G$7$g$&$+!)(J

          SWHUB  SWHUB   SWHUB  SWHUB  SWHUB   SWHUB
Point A ----##-----##-----##-----##-----##------##----- Point B



$@<ALd$=$N(J2:

$@7zJ*$NCf$N$"$k>l=j(JA$@$+$i(J(100meter$@0JFb(J)$@N%$l$?>l=j(JB$@$X(J,
$@G[4IEy$N4X78$G%1!<%V%k@~:`$r$"$^$jK\?tBt;30z$CD%$k$3$H$,(J
$@=PMh$J$$>l9g$K(J, $@Nc$($P(J 10BaseT $@$r(J5 $@K\0z$CD%$j$?$$$,(J Category V $@$N(J
$@%1!<%V%k$r(J1$@K\$@$10z$$$F:Q$^$;$kJ}K!$H$7$F(J

   10BaseT                                          10BaseT
Cable 1 ----------------------------------------- Cable 1
Cable 2 ----------------------------------------- Cable 2
Cable 3 ----------------------------------------- Cable 3
Cable 4 ----------------------------------------- Cable 4
Cable 5 ----------------------------------------- Cable 5

$@$N$+$o$j$K4V$K(J, 100Base-T$@$N%S%C%0%Q%$%W$r;}$C$?(J10Base-T 
$@$rJ#?t;}$C$?(JSwitching HUB $@$r$$$l$FCf7Q$r(J100Base-T$@$H$7$F(J

          
   10BaseT                                          10BaseT
Cable 1 ---|S|                             |S|--- Cable 1
Cable 2 ---|W|           100BaseT          |W|--- Cable 2
Cable 3 ---|H|-----------------------------|H|--- Cable 3
Cable 4 ---|U|                             |U|--- Cable 4
Cable 5 ---|B|                             |B|--- Cable 5

$@$H$9$k$3$H$,2DG=$G$"$j$^$9$+(J?
$@$^$?!"FC$K:8B&$N(J5$@K\$N%1!<%V%k$,F10l$N%j%T!<%?!<%O%V(J($@%@%`%O%V(J)
$@$N%]!<%H$+$i=P$FMh$?@~$G$"$k>l9g$K$bBg>fIW$G$7$g$&$+(J?
($@1&B&$N(J5$@K\$OC<Kv$G$"$k(JPC$@$@$H$7$^$9(J.)


$@$^$?!">e5-$,Bg>fIW$G$"$k$H$-!"$5$i$KJ#;(EY$rA}$9$o$1$G$9$,(J,
$@Nc$($P(J10BaseT$@$r(J16$@%]!<%H$b$A!"(J100Base-T$@$r(J2$@%]!<%H;}$C$F$$$k(J
$@$h$&$J%9%$%C%A%s%0%O%V$,$"$k$H$7$F!"(J2$@E@4V$r(J2$@K\$@$1(JCategory V
$@$G@~:`$rDL$;$k$H$-$K(J,

   10BaseT                                          10BaseT
Cable 1 ---|S|                             |S|--- Cable 1
Cable 2 ---|W|           100BaseT          |W|--- Cable 2
Cable 3 ---| |-----------------------------| |--- Cable 3
.....   ---|H|-----------------------------|H|--- .......
Cable15 ---|U|           100BaseT          |U|--- Cable15
Cable16 ---|B|                             |B|--- Cable16

$@$H$d$C$F$bNI$$$N$G$7$g$&$+!)(J

-------------------
$@$I$A$i$N5?Ld$bF0:n$OBg>fIW$J$h$&$J5$$b$9$k$7!"(J
$@BLL\$G$"$k$h$&$J5$$b$7$^$9!#(J
$@$H$$$&$N$b!"(JHUB $@$d(J Swiching Hub $@$NCf?H$,;d$K$H$C$F$O$^$@(J
$@%V%i%C%/%\%C%/%9$NCJ3,$@$+$i$J$s$G$9!#(J

