[ct-user] NETWORK 3 PC's vs 1 PC

Ed Parish K1EP k1ep at arrl.net
Mon Feb 28 11:32:12 EST 2005

There are two ways to connect four computers using serial ports.  The first method requires that two of the computers have two serial ports.  

PC1/sp1------PC2/sp1 PC2/sp2------PC3/sp1 PC3/sp2---------PC4/sp1

The other method only requires one serial port per computer, however, you must make up special cables.  It is called LOOP mode.  Basically, you connect pin 2 of one computer to pin 3 of the next computer in a loop.  For the degenerative case of only two computers, the cable is essentially a cross over or null modem cable.  Otherwise, you will have to construct special cables.  You can not connect cables as you described below.

At 2/28/2005 09:36 AM, Winston Roig Jr wrote:
>Dear colleagues:
>I would like to know to me like installing the network of the CT with four
>computers, three of these directly connected to a single serial port of the
>rest, as if outside a letter Y.
>                                                    PC 1
>                                                      I
>                                        -----------------------------
>                                        I             I              I
>                                       PC2        PC3        PC4
>Thanks and 73's
>CT-User mailing list
>CT-User at contesting.com
>CT on the web:  http://www.k1ea.com/

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