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<H2><A NAME="speed_"></A> <A NAME="s13">13.</A> <A HREF="Modem-HOWTO.html#toc13">$B%b%G%`$G;H$&$Y$-B.EY$O(B? </A></H2>
<P> $BCx<T$O!VB.EY!W$r!V%G!<%?E>AwB.EY!W$N$D$b$j$G;H$C$F$$$^$9$,!"$[$H$s(B
$B$I$N?M$O4V0c$C$FB.EY$H8F$s$G$$$^$9!#:G6a$N%b%G%`$O>u67$,5v$9:G$b9b$$B.(B
$BEY$r<+F0E*$KA*Br$9$k$N$G!"%f!<%6$,%b%G%`$NEEOC2s@~>e$G$NB.EY$rA*$Y$^$;(B
$B$s!#$7$+$7!"%b%G%`$H%3%s%T%e!<%?4V$NB.EY$J$iA*$Y$^$9!#$3$NB.EY$r!V(BDTE
$BB.EY!W$H8F$V$3$H$b$"$j$^$9!#$3$3$G!"(B``DTE'' $B$O(B Data Terminal Equipment
$B$rI=$7$^$9(B($B%3%s%T%e!<%?$O(B DTE $B$G$9(B)$B!#?.9f$,N.$l$k7PO)$NCf$G$3$NItJ,$,(B
$B%\%H%k%M%C%/$K$J$i$J$$$h$&!"$3$NB.EY$r=<J,$KB.$/@_Dj$9$kI,MW$,$"$j$^$9!#(B
DTE $BB.EY$N@_Dj$O!"$3$N@\B3$G2DG=$J8B$j9b$$B.EY$K$7$^$9!#B?$/$N>l9g!"62(B
$B$i$/$=$l$h$jDc$$B.EY$G$7$+;H$o$J$$$G$7$g$&!#(B</P>
<P>$B30IU$1%b%G%`$G$O!"(BDTE $BB.EY$O%b%G%`$H(B PC $B$N4V$N%1!<%V%k$rN.$l$k%G!<%?$N(B
$BB.EY$G$9(B (bit/sec $B$GI=8=$7$^$9(B)$B!#FbB"%b%G%`$G$O!"%7%j%"%k%]!<%H$N$h$&(B
$B$KF0:n$9$k$N$G!"30IU$1%b%G%`$HF1$8$h$&$K9M$($^$9!#%b%G%`%\!<%I$H%3%s(B
$B%T%e!<%?$O$+$J$j9bB.$J%P%9$GD>@\@\B3$5$l$F$$$k$N$G!"B.EY$K8B3&$,$"$k$3(B
$B$H$O$*$+$7$$$H46$8$k$+$b$7$l$^$;$s!#$7$+$7!"%b%G%`%\!<%I$K$OB.EY$K8B3&(B
$B$N$"$k(B($B$=$7$FB.EY$r@_Dj$G$-$k(B) $B@lMQ$N%7%j%"%k%]!<%H$,$"$k$N$G$9!#(B</P>
<H2><A NAME="ss13.1">13.1</A> <A HREF="Modem-HOWTO.html#toc13.1">$BB.EY$H%G!<%?05=L(B</A>
</H2>
<P> $B$I$N$h$&$JB.EY$rA*$S$^$7$?$+(B? $B!V%G!<%?05=L!W$,$J$1$l$P!"%b%G%`$N(B
$BB.EY$H$A$g$&$IF1$8(B DTE $BB.EY$rA*$V?M$b$$$k$G$7$g$&!#%G!<%?05=L$O%3%s%T%e!<(B
$B%?$+$i%b%G%`$XAw$k%G!<%?$r07$$!"$h$j>/$J$$%G!<%?$XId9f2=$7$^$9!#Nc$($P!"(B
PC $B$+$i%b%G%`$X$NB.EY$,(B 20,000 bytes/sec (bps) $B$G05=LN($,(B 2:1 $B$J$i!"(B
10,000 bytes/sec $B$N%G!<%?$@$1$,EEOC2s@~>e$rN.$l$^$9!#=>$C$F!"05=LN($,(B
2:1 $B$@$H!"EEOC2s@~>e$G$N:G$b9b$$%b%G%`$NB.EY$N(B2 $BG\$r@_Dj$9$kI,MW$,$"$j(B
$B$^$9!#05=LN($,(B 3:1 $B$J$i!"(B3 $BG\9bB.$K@_Dj$7$J$1$l$P$J$j$^$;$s!#(B</P>
<H2><A NAME="ss13.2">13.2</A> <A HREF="Modem-HOWTO.html#toc13.2">$B$I$3$GB.EY$r@_Dj$9$k$N(B?</A>
</H2>
<P> $BDL>o!"(BDTE $BB.EY$ODL?.%W%m%0%i%`$N%a%K%e!<$d!"%@%$%d%k%$%s$N:]$K;H$&(B
getty $B%3%^%s%I$N%*%W%7%g%s$G@_Dj$7$^$9!#%b%G%`4V$N(B DCE $BB.EY$O@_Dj$G$-(B
$B$^$;$s!#(B</P>
<H2><A NAME="ss13.3">13.3</A> <A HREF="Modem-HOWTO.html#toc13.3">$B=<J,$K9b$$B.EY$X@_Dj$G$-$J$$(B</A>
</H2>
<P> $B%O!<%I%&%'%"$,%5%]!<%H$9$k:G$b9b$$B.EY$rCN$kI,MW$,$"$j$^$9!#(B1998
$BG/$N=*$j$K$O!"B?$/$N%O!<%I%&%'%"$O(B 115.2K bps $BDxEY$NB.EY$r%5%]!<%H$7$F(B
$B$$$^$7$?!#$=$7$F!">/?t$N(B 56K $BFbB"%b%G%`$@$1$,(B 230.4K bps $B$r%5%]!<%H$7(B
$B$F$$$^$7$?!#:G6a$N(B Linux $B%+!<%M%k$O(B (115.2K $B0J>e$N(B)$BB.$$B.EY$r%5%]!<%H(B
$B$7$F$$$^$9$,!"0J2<$K5s$2$kJ#?t$NM}M3$K$h$j!"$=$l$rMxMQ$9$k$K$O:$Fq$,H<(B
$B$&$+$b$7$l$^$;$s!#(B</P>
<P>
<OL>
<LI> $B%"%W%j%1!<%7%g%s%W%m%0%i%`(B($B$"$k$$$O(B stty) $B$,(B
$BB.$$B.EY$KBP1~$G$-$J$$!#(B</LI>
<LI> setserial $B$N%G%U%)%k%HB.EY$O(B 115,200 bps $B$G$"$k(B
($B$7$+$7!"JQ99$O4JC1$G$9(B)$B!#(B</LI>
</OL>
</P>
<H3><A NAME="divisor_"></A> $B$I$N$h$&$K%O!<%I%&%'%"Cf$GB.EY$,@_Dj$5$l$F$$$k$+(B :$B=|?t$H%\!<%l!<%H(B </H3>
<P> $B$3$3$K!"DL>o;HMQ$9$k=|?t$N0lMw$r5s$2$^$9!#(B($B:G9bB.EY$,(B 115,200 $B$J$i(B)
$BBP1~$9$kB.EY$O(B : 1 (115.2K), 2 (57.6K), 3(38.4K), 6 (19.2K), 12
(9.6K), 24 (4.8K), 48 (2.4K), 96 (1.2K) $B$J$I$G$9!#%7%j%"%k%I%i%$%P$O(B
($B@5$N@0?t$N(B) $B!V=|?t!W$@$1$rAw$j!"%O!<%I%&%'%"$KB.EY$r@_Dj$7$^$9!#$3$N(B
$B!V=|?t!W$G%O!<%I%&%'%"$N:G9bB.EY$r3d$j!"$h$jCY$$B.EY$K$J$j$^$9(B($BL@$i$+(B
$B$G$9$,!"=|?t(B 1 $B$O%O!<%I%&%'%"$K:G9bB.EY$GF0:n$9$k$h$&L?Na$7$^$9(B)$B!#(B</P>
<P>$BDL>o!"(B($BDL?.%W%m%0%i%`$+(B stty $B$G(B) 115.2k $B$NB.EY$r;XDj$7$?$J$i!"%7%j%"%k(B
$B%I%i%$%P$O%]!<%H$N%O!<%I%&%'%"$r!":G$bB.$$B.EY$r;XDj$9$k=|?t(B 1 $B$K@_Dj(B
$B$7$^$9!#:G9bB.EY$,(B 230.4k $B$N%O!<%I%&%'%"$r$?$^$?$^;}$C$F$$$?$J$i!"(B
115.2k $B$r;XDj$9$k$H=|?t$,(B 1 $B$H$J$j!"<B:]$K@_Dj$5$l$kB.EY$O(B 230.4k $B$K$J(B
$B$j$^$9!#@_Dj$N(B 2 $BG\$K$J$j$^$9!#;v<B!"$I$NB.EY$K@_Dj$7$F$b!"K\Ev$NB.EY(B
$B$O@_Dj$N(B 2 $BG\$K$J$j$^$9!#(B460.8k $B$GF0:n$9$k%O!<%I%&%'%"$G$O!"K\Ev$NB.EY(B
$B$O@_Dj$7$?B.EY$N(B 4 $BG\$K$J$j$^$9!#(B</P>
<H3>$BB.EY@_Dj$N$*$^$1(B</H3>
<P> ($BI,$:$7$bLdBj$r2r7h$G$-$k$H$O8B$j$^$;$s$,(B)$B$3$N>uBV$r=$@5$9$k$?$a!"(B
``setserial'' $B$N(B <CODE>baud_base</CODE> $B%*%W%7%g%s$r;H$C$F(B 230.4k $B$J$I%]!<%H$N(B
$B@5$7$$:G9bB.EY$XJQ99$9$k$N$,NI$$$G$7$g$&!#(B($B%"%W%j%1!<%7%g%s$d(B stty $B$G(B)
$BB.EY$r@_Dj$7$?$J$i!"=|?t(B 1 $B$r;H$$@_Dj$7$?DL$j$NB.EY$r;H$($k$h$&$K$J$j(B
$B$^$9!#LdBj(B : (1999 $BG/$NCf$4$m$G$O(B) stty $B$HB?$/$NDL?.%W%m%0%i%`$O:G9bB.(B
$BEY$,(B 115.2k $B$G$"$j!"(B230.4k $B$J$I$K$O@_Dj$G$-$J$$$G$7$g$&!#=>$C$F!"$3$N(B
$B$h$&$J>l9g$G$N$R$H$D$N2r7hK!$O!"(B<CODE>setserial</CODE> $B$G2?$bJQ99$;$:!"@5$7$$(B
$BB.EY$O>o$K@_Dj$N(B 2 $BG\$G$"$k$H<+J,$K8@$$J9$+$;$k$3$H$G$9!#(B</P>
<P>$B$=$l$[$I9%$^$7$/$O$J$$$N$G$9$,!"$b$&$R$H$D$*$^$1$,$"$j$^$9!#(B(setserial
$B$G(B) <CODE>baud_base</CODE> $B$r%O!<%I%&%'%"$N:G9bB.EY$X@_Dj$7$^$9!#$3$NA`:n$O!"(B
115.2k $B$K@_Dj$7$?$J$i@53N$K(B 115.2k $B$N@_Dj$K$J$k$h$&!"7W;;J}K!$r=$@5$7(B
$B$^$9!#;H$C$F$$$kDL?.%W%m%0%i%`$J$I$,$3$N=$@5$r$7$F$/$l$J$$$J$i!"$I$N$h(B
$B$&$K$7$F:G9bB.EY$X@_Dj$9$k$N$+99$KM}2r$9$kI,MW$,$"$j$^$9!#9,1?$K$b!"(B
setserial $B$K$O=$@5$NJ}K!$,$"$j$^$9(B : ``<CODE>divisor 1</CODE>'' $B$H$H$b$K(B
``<CODE>spd_cust</CODE>'' $B%Q%i%a!<%?$rMQ$$$^$9!#DL?.%W%m%0%i%`$GB.EY$r(B 38400
$B$K@_Dj$9$k$H!"%]!<%H$N=|?t$O(B 1 $B$H@_Dj$5$l:G9bB.EY$GF0:n$7$^$9!#Nc$($P(B
:</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
setserial /dev/ttyS2 spd_cust baud_base 230400 divisor 1
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>(<CODE>spd_cust</CODE> $B$H$H$b$KMQ$$$k(B)$B>e$K5s$2$?FC<lMQES0J30$NL\E*$K$O!"(B
``<CODE>divisor</CODE>'' $B%*%W%7%g%s$r;n$5$J$$$G$/$@$5$$!#(B</P>
<P>$BDL?.%W%m%0%i%`$G@_Dj$G$-$J$$$h$&$J9bB.$N@_Dj$r;H$$$?$$$H$7$F$b!">e$NNc(B
$B$HF1$8$/$i$$4JC1$K$O$$$-$^$;$s!#$7$+$7!"F1$886M}$,E,MQ$G$-$^$9!#(B
<CODE>baud_base</CODE> $B$r%G%U%)%k%H@_Dj$N$^$^$K$7!"B.EY@_Dj$N:]$K=|?t$N$_$r@_(B
$BDj$7$^$9!#=>$C$F!"<B:]$NB.EY$O%7%j%"%k%I%i%$%P$K@_Dj$7$?=|?t$G!"%b%G%`(B
$B$N:G9bB.EY$r3d$C$?CM$K$J$j$^$9!#(B
<A HREF="#divisor_">$B$I$N$h$&$K%O!<(B $B%I%&%'%"Cf$GB.EY$,@_Dj$5$l$F$$$k$+(B : $B=|?t$H%\!<%l!<%H(B</A> $B$r$4Mw$/$@$5$$!#(B</P>
<H3>$B?e>=$N?6F0?t$O(B baud_base $B$G$O$"$j$^$;$s(B</H3>
<P> $B$?$$$F$$!"@_Dj$7$?(B <CODE>baud_base</CODE> $B$O%O!<%I%&%'%"Cf$N?e>=H/?6;R$N?6(B
$BF0?t$h$j$b!"$:$C$H>.$5$JCM$@$H$$$&$3$H$rCN$C$F$/$@$5$$!#$3$l$O!"@53N$J(B
$B:G9bB.EY$rF@$k$?$a$K!"?e>=$N?6F0?t$r(B 1/16 $B$K$9$k$3$H$b$"$k$+$i$G$9!#B?(B
$B$/$N%5%s%W%kE@$N3F%S%C%H$r(B 1 $B$+(B 0 $B$+7hDj$9$k$?$a$K!"$3$N9b$$?e>=$N?6F0(B
$B?t$r;HMQ$7$^$9!#$3$l$,?e>=$N?6F0?t$rHf3SE*9b$/$7$J$1$l$P$J$i$J$$M}M3$G(B
$B$9!#(B</P>
<H2><A NAME="speed_table"></A> <A NAME="ss13.4">13.4</A> <A HREF="Modem-HOWTO.html#toc13.4">$BB.EYI=(B </A>
</H2>
<P> 56k $B%b%G%`$,$"$k$N$G!":GDc$G$b(B 16650 UART $B$r;H$&$N$,$b$C$H$bNI$$$G(B
$B$9!#$7$+$7!"$[$H$s$I$N%b%G%`$O(B 56k $B$r=P$;$^$;$s!#<!$KNI$$$N$O!"(B230,400
bps $B$r=P$9$h$&(B 16650 UART $B$rD4@0$9$k$3$H$G$9!#%b%G%`$NB.EY$K$h$C$F0[$J(B
$B$k!"K>$^$7$$%7%j%"%k$NB.EY$r$3$3$K5s$2$^$9(B :</P>
<P>
<UL>
<LI> 56K (V.90) $B%b%G%`$G$O(B 115200 bps $B$"$k$$$O(B 230400 bps
($B$b$&?t(B % $BB.$/(B ?) </LI>
<LI> 28.8K (V.34), 33.6K (V.34) $B%b%G%`$G$O(B 115200 bps</LI>
<LI> V.42bis $B%G!<%?05=LIU$-(B 14400 bps (V.32bis) $B%b%G%`$G$O(B 57600 bps</LI>
<LI> V.42bis $B%G!<%?05=LIU$-(B 9600 bps (V.32) $B%b%G%`$G$O(B 38400 bps</LI>
<LI> 9600 bps (V.32) $B$h$jDcB.$N%b%G%`$G$O%b%G%`$,%5%]!<%H$9$k:G9bB.EY(B</LI>
</UL>
</P>
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