Syndesh 2 PCs se LAN me UTP xwris HUB.

[Mixalis Kabrianis]

At 01:35 ìì 5/4/1998 +0300, you wrote:
>Kalh sas mera synlistobioi.
>
>Sas paraqetw mia mikrh xrhsimh plhroforia, poy isws merikoi apo sas hdh
>na thn gnwrizoyn.
>Tis proalles eixa agorasei 2 kartes diktyoy ths 3COM gia na syndesw ta 2
>PC poy exw sto spiti. Gia na mhn agorasw HUB (poy kostizei arketa)
>protimhsa syndesh me omoajoniko kalwdio. Peritto na sas pw oti spasane
>ta neyra moy dioti kaqe ligo kai ligaki den ginotan kalh epafh sta
>kalwdia kai epefte to LAN.
>Etsi apofasisa na ta syndesw me UTP syndesh kai RJ-45 jacks. Epeidh
>prokeitai gia 2 monon mhxanhmata emaqa oti h xrhsh toy HUB den einai
>aparaithth. Eprepe omws na ginei mia diastayrwsh sta kalwdia opws ayta
>odhgoyntai sta bysmata, wste na doylepsei h olh istoria.
>
>Ean loipon kapoios endiaferetai gia na kanei tetoioy eidoys syndesh, me
>RJ-45 crossover cable (oxi pin-to-pin, to opoio qelei HUB), me bash to
>akoloyqo sxediagramma
>
> -----------------
>| 8 7 6 5 4 3 2 1 |
> ------_____------
>        TAB
>
>poy anaparista to bysmataki RJ-45, qa prepei h antistoixhsh twn kalwdiwn
>na ginei sta 2 mhxanhmata ws ejhs:
>
>Connector 1                             Connector 2
>
>     pin     assignment      color           pin     assignment
>     1       TxData+         White/Orange    3       RxData+
>     2       TxData-         Orange          6       RxData-
>     3       RxData+         White/Green     1       TxData+
>     6       RxData-         Green           2       TxData-
>
>Dhladh to pin1 toy enos me to pin3 toy alloy, to pin 2 toy anos me to
>pin 6 toy alloy kai fysika to anapodo.
>
>Ayta, pros enhmerwsh...
>
>--

To opoio einai kai to idio pou xreiazesai gia na syndeseis hub me hub (an
den exei esoteriki ipostirixi gia anastrofo kalodio, opos merika tis allied
telesyn)


        Mixalis Kabrianis
Agricultural University of Athens
  Network Management Center
    mkabrian at auadec.aua.gr
     ICQ (in Linux)	441092

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