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Date: Mon, 19 Jan 1998 15:03:29 +0900
To: FreeBSD-users-jp@jp.freebsd.org
From: Osamu Kawasaki <kawasaki@system.hitachi.co.jp>
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Subject: [FreeBSD-users-jp 23424] Re: Ethernet Cabling Questions.
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
Sender: owner-FreeBSD-users-jp@jp.freebsd.org

$B$+$o$5$-!wF|N)$G$9!#(J

$B$o$+$kHO0O$GEz$($F$_$^$9!#(J

> FreeBSD $B$H$OD>@\E*$K$OL54X78$J<ALd$G:Q$_$^$;$s!#(J
> $B<+J,$NF,$G9M$($?$N$G$O!"3N>Z$N46$,F@$i$l$J$$$N$G!"(J
> $B3'MM$K65$($FD:$-$?$/;W$C$F!"0J2<$N<ALd$r$5$;$FD:$-$^$9!#(J
> ------------------------------------------------
> 
> 
> $B<ALd$=$N(J1:
> 
> 10Base-T$B$G!"FsE@4V$r@\B3$9$k$N$K!"4V$K%9%$%C%A%s%0%O%V$rBt;3(J
> $BF~$l$k$H(J, $B%9%$%C%A%s%0%O%V4V$N5wN%$@$1$r0lDj$KJ]$C$F$*$l$P(J
> $BDL?.=PMh$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
> 

SWHUB$B$N;EMM$K$b$h$k$H;W$$$^$9$,!"4pK\E*$K(J"$B%V%j%C%8(J"$B$@$H;W$&$N$G!"(J
$B%9%Q%K%s%0%D%j!<$N@)8B(J($BB?CJ@\B3$O(J7$BCJ$^$G!)(J)$B$K$h$k$H;W$$$^$9!#(J

$B%9%Q%K%s%0%D%j!<5!G=$r(JOFF$B$K=PMh$l$P!"L58B(J(?)$B$K$D$J$,$k$H;W$$$^$9!#(J

> 
> 
> $B<ALd$=$N(J2:
> 
> $B7zJ*$NCf$N$"$k>l=j(JA$B$+$i(J(100meter$B0JFb(J)$BN%$l$?>l=j(JB$B$X(J,
> $BG[4IEy$N4X78$G%1!<%V%k@~:`$r$"$^$jK\?tBt;30z$CD%$k$3$H$,(J
> $B=PMh$J$$>l9g$K(J, $BNc$($P(J 10BaseT $B$r(J5 $BK\0z$CD%$j$?$$$,(J Category V $B$N(J
> $B%1!<%V%k$r(J1$BK\$@$10z$$$F:Q$^$;$kJ}K!$H$7$F(J
> 
>    10BaseT                                          10BaseT
> Cable 1 ----------------------------------------- Cable 1
> Cable 2 ----------------------------------------- Cable 2
> Cable 3 ----------------------------------------- Cable 3
> Cable 4 ----------------------------------------- Cable 4
> Cable 5 ----------------------------------------- Cable 5
> 
> $B$N$+$o$j$K4V$K(J, 100Base-T$B$N%S%C%0%Q%$%W$r;}$C$?(J10Base-T 
> $B$rJ#?t;}$C$?(JSwitching HUB $B$r$$$l$FCf7Q$r(J100Base-T$B$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
> 
> $B$H$9$k$3$H$,2DG=$G$"$j$^$9$+(J?
> $B$^$?!"FC$K:8B&$N(J5$BK\$N%1!<%V%k$,F10l$N%j%T!<%?!<%O%V(J($B%@%`%O%V(J)
> $B$N%]!<%H$+$i=P$FMh$?@~$G$"$k>l9g$K$bBg>fIW$G$7$g$&$+(J?
> ($B1&B&$N(J5$BK\$OC<Kv$G$"$k(JPC$B$@$H$7$^$9(J.)
> 

$B2DG=$@$H;W$$$^$9!#(J

> 
> $B$^$?!">e5-$,Bg>fIW$G$"$k$H$-!"$5$i$KJ#;(EY$rA}$9$o$1$G$9$,(J,
> $BNc$($P(J10BaseT$B$r(J16$B%]!<%H$b$A!"(J100Base-T$B$r(J2$B%]!<%H;}$C$F$$$k(J
> $B$h$&$J%9%$%C%A%s%0%O%V$,$"$k$H$7$F!"(J2$BE@4V$r(J2$BK\$@$1(JCategory V
> $B$G@~:`$rDL$;$k$H$-$K(J,
> 
>    10BaseT                                          10BaseT
> Cable 1 ---|S|                             |S|--- Cable 1
> Cable 2 ---|W|           100BaseT          |W|--- Cable 2
> Cable 3 ---| |-----------------------------| |--- Cable 3
> .....   ---|H|-----------------------------|H|--- .......
> Cable15 ---|U|           100BaseT          |U|--- Cable15
> Cable16 ---|B|                             |B|--- Cable16
> 
> $B$H$d$C$F$bNI$$$N$G$7$g$&$+!)(J
> 

$B%9%Q%K%s%0%D%j!<$,F0:n$7$F$$$l$P!"2DG=$@$H;W$$$^$9$7!"(J
$BNI$/$d$k(J(?)$B9=@.$@$H;W$$$^$9!#%P%C%/%"%C%W$N0UL#$K$b(J
$B$J$k$H;W$$$^$9!#(J

                                                       $B0J>e(J

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
$B@n:j(J  $B=$(J   $BF|N)@=:n=j(J  $B>pJs%7%9%F%`;v6HIt(J  $B650i%;%s%?It(J

           kawasaki@system.hitachi.co.jp
           GCD03344@niftyserve.or.jp
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
