RE: lug-bg: dvuzichna linia

[bkrosnov@xxxxxxxx (Boyan Krosnov)]

werno che se otplesnah malko :)
 
prosto iskah da se znae kakwa e alternatiwata na towa da si pusnesh
kabel.
 
Zabrawih da spomena che ima i wariant rabotata da se swyrshi s 10Base2
(BNC). 
 
regards,

--
Boyan Krosnov ( http://www.nat.bg/~bkrosnov
<http://www.nat.bg/~bkrosnov> )
Network Administrator
Lirex BG Ltd. 

-----Original Message-----
From: Vesselin Kotarov [mailto:bombe@xxxxxxxxxxxx]
Sent: Wednesday, January 10, 2001 1:23 PM
To: lug-bg@xxxxxxxxxxxxxxxxxx
Subject: Re: lug-bg: dvuzichna linia

Be Boyane .. choweka ne move da si opyne 10m utp kabel, ti mu goworish
za operacionni usilwateli ;-)
Rosene, hwani se w ryce .. az za 1/2 den okabelih office s pochti 10
pc-ta, kato kym okabelqwaneto se 
broi i slaganeto na kabelni kanali, rozetki, opywaneto na kabel do
sysedna sgrada i t.n. .. ne boli chak tolkowa :)
 
b0mbe :)

----- Original Message ----- 
From: Boyan Krosnov <mailto:bkrosnov@xxxxxxxx>  
To: lug-bg@xxxxxxxxxxxxxxxxxx <mailto:lug-bg@xxxxxxxxxxxxxxxxxx>  
Sent: Wednesday, January 10, 2001 9:34 AM
Subject: RE: lug-bg: dvuzichna linia

w interes na istinata ako si seriozen hardware-ist i imash podhodqshtite
chasti i kachestweni kabeli  NA KYSI RAZSTOQNIQ po 3 jici (edna za zemq)
moje da uspeesh...

w 10BaseT signalite se predawat diferencialno (ili
balansirano,simetrichno sprqmo zemq). 
t.e. za wsqka posoka imash 2 provodnika kato po ediniq se predawa
signala a po drugiq signala invertiran sprqmo zemqta. 
W EDIN MOMENT ako na ediniq prowodnik ima naprejenie A na drugiq ima
naprejenie -A. 

ideqta mi e wzimash samo polojitelniq provodnik i gi prekarwash prez
ednata jica. ot drugata strana stoi edin operacionen usilwatel kojto ti
regenerira otricatelniq sprqmo zemq. po syshtiq nachin w obratnata
posoka.

za da raboti towa trqbwa dosta neshta da se syobrazqt, izchislqt..... 
chestotnata lenta na operacionniq usilwatel trqbwa da e dostatychno
golqma 
trqbwa da se proweri dali linkpulses(ili beacon-ite) sa na syshtiq
diferencialen princip. 
trqbwa da se syobrazqt vhodniq i izhodniq impedans na usilwatelite. 
da se preceni ne moje li za treta jica da se polzwa zazemqwaneto na
sgradata. 
da se wnimawa sys razstoqniqta m/u dwete tochki, kabeliraneto tam,
shtoto ne predawame signala diferencialno i shte ima STRASHNI zatihwaniq
i shumowe.

ne che e lesno da se naprawi ama wse pak e nqkakwa wyzmojnost ako
tolkowa ne iskash da puskash kabel :) 

regards, 
-- 
Boyan Krosnov ( http://www.nat.bg/~bkrosnov
<http://www.nat.bg/~bkrosnov> ) 
Network Administrator 
Lirex BG Ltd. 

> -----Original Message----- 
> From: Dancho Mitev [ mailto:dancho_mitev@xxxxxxxxxxx
<mailto:dancho_mitev@xxxxxxxxxxx> ] 
> Sent: Wednesday, January 10, 2001 8:09 AM 
> To: lug-bg@xxxxxxxxxxxxxxxxxx 
> Subject: Re: lug-bg: dvuzichna linia 
> 
> 
> 
> 
> 
> >From: Rosen <roska@xxxxxxxxxxxx> 
> >Reply-To: lug-bg@xxxxxxxxxxxxxxxxxx 
> >To: lug-bg@xxxxxxxxxxxxxxxxxx 
> >Subject: lug-bg: dvuzichna linia 
> >Date: Tue, 09 Jan 2001 20:14:20 +0200 
> > 
> >Nyakoi moze li da mi kaze dali po obiknovena 
> >2-provodnikova telefonna liniq mezdu dve 
> >sasedni pomestenia (10m) moga da naprawq 
> >Ethernet vrazka m/u 2 PC-ta? Ne mi se iska 
> >da slagam modemi ot dvete strani - tryabva 
> >da gi kupuvam, a i vrazkata ste bade bavna. 
> >Ot druga strana, v ednoto pomestenie ima izgradena 
> >10Mb Ethernet mreza s UTP kabeli, i kupuvaneto na 
> 
> Ne movesh da pusnesh Ethernet po dwuprowodna liniq. 
> Eto ti edin link kojto shte ti pomogne po wyprosa s okabelqwaneto. 
> http://www.techfest.com/networking/lan/ethernet.htm
<http://www.techfest.com/networking/lan/ethernet.htm>  
> 
> 
> ______________________________________________________________ 
> ___________ 
> Get Your Private, Free E-mail from MSN Hotmail at 
http://www.hotmail.com <http://www.hotmail.com> . 

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Otpiswaneto RABOTI !!! : Majordomo@xxxxxxxxxxxxxxxxxx UNSUBSCRIBE LUG-BG
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