Xamhlh taxythta mono apo linux

[Sakis Kanaris]

>> To 115200 avaferetai stnv "eswterikn" epikoivwvia computer-modem kai oxi
>> stnv "diadiktyakn" modem-modem. Ara prepei va 8etetai stnv maximum dyvatn
>> tns 8yras, dnladn 115200. Av exeis 33.6KBps modem kai tnv ry8miseis sto
>> 38400 8ewrntika douleyei, alla yparxouv kai diakymanseis stis
eiserxomeves
>> taxytntes...
>
> Epeidh ayth thn aporia thn eixa kai egw, ti ennoeis otan les na exei
>33.6 KAI NA THN RUTHMISEI ? (poy pws kai pote?)
To 115200 bps eivai n taxytnta me tnv opoia eiserxontai stov ypologistn apo
to modem ta dedomena. Profavws, av exeis 33.6 modem kai baleis autnv tnv
taxytnta se 19200 bps, to modem sou 8a eivai "fimwmevo". Tnv taxytnta 33600
(sto paradeigma mas) DEN tn ry8mizeis - ektos av pai3eis me AT commands.
Syvn8ws to modem tnv ry8mizei kata to handshaking - tnv suvevvonsn dnladn me
to allo modem kata tnv syvdesn.
Twra, giati av exeis 33.6 kbps kalo eivai va bazeis tnv maximum autn
taxytnta, e3ngeitai me to e3ns: Av exeis prose3ei, n taxytnta downloading
dev eivai pavta 3-3.5 kb/s, to opoio vomizw isxyei sta 33.6 modems. Merikes
fores (av exeis psnfiakn kai o server apo opou katebazeis eivai kovta) n
taxytnta au3avei se pavw apo 4 kb/s (exw eva 28.8 modem kai avaloga me to ti
katebaza, eblepa kai taxytntes ws kai 5.5kb/s) Auto symbaivei logw sympiesns
pou kavei to modem stnv apostoln paketwv. Ta dedomeva aposympiezovtai sto
modem kai apo ekei stelvovtai stov ypologistn, mesw tns taxytntas 115200bps.
Ara, av exeis setarismevn tn seriakn taxytnta se 38400, periorizeis autn tnv
avesn sto katebasma.
To pou kai pws givetai auto, av exeis xisp eivai olofavero.
To pote, pisteyw to e3ngnsa pio pavw.

Κανάρης Αθανάσιος
kanaris at freemail.gr
PGP Key ID:0x1F89CCC3


--
====================================================================
Gia boithia (h na diagrafhte) e-mail sto majordomo at hellug.gr
Ta archives tis listas einai sto http://lists.hellug.gr
prin steilete kapoia erothsh psakte mipos exei hdh apanththei.
Gia opoiodipote problima stilte e-mail ston owner-linux-greek-users
====================================================================