Re: Ethernet x-over cable -- MIDRANGE-L

You can always connect two hubs together using a cross over cable or some
hubs even have a cross over port that can be used to connect two hubs.
(usually there is some which that will "cross over" the port so you can
always use the same cable).
CJG

Carl Galgano
EDI Consulting Services, Inc.
540 Powder Springs Street
Suite C19
Marietta, GA  30064
770-422-2995
mailto: cgalgano@ediconsulting.com
http://www.ediconsulting.com
EDI, Communications and AS400 Technical Consulting

-----Original Message-----
From: Jim Langston <jlangston@conexfreight.com>
To: MIDRANGE-L@midrange.com <MIDRANGE-L@midrange.com>
Date: Monday, November 29, 1999 11:27 AM
Subject: Re: Ethernet x-over cable


>For more than 2 devices you are going to have to use
>some form of hub.  Each ethernet cable has one pair
>of wires for transmit, and one pair for receive.  It is
>one on one communication with the other end.
>
>For 2 PCs you make a crossover cable and plug one end
>into your NIC card and the other to the other NIC card,
>and the NIC cards talk to each other.
>
>For 3 PCs you would have to use a standard cable, and
>plug each computer from the NIC card to the hub.
>
>You can get a hub very cheap (downwards from like $200)
>for a small one, such as a stackable mini hub from Black
>Box corporation is 8 port and you can connect more than
>one together to get 16, 24 ports.. etc.  Each is $218.95
>(according to their latest catalog).
>
>Even cheaper is something called a Compact Workgroup Hub
>which is also 8 port, doesn't seem to be expandable though,
>but costs only $179.00.
>
>If you really want to go cheap, they have an OfficeConnect Hub
>TP/4 with 4 connectors for $44.46.
>
>So, there are 3 solutions, ranging from $44.46 to $218.95.  And,
>if you want bigger and better, they have them too.  For $50 or so
>with shipping, I don't think you can beat it.  If you want a network
>you really should look into hubs.
>
>Regards,
>
>Jim Langston
>
>
>
>PaulMmn wrote:
>
>> Using a pin-out diagram from somewhere on-line, I built a 'null hub' in a
>> 2-jack phone jack.  It allows use of standard cables.
>>
>> If you number the pins 87654321 as you look at the 'business end' of each
jack,
>> connect pin 6 to pin 2, and pin 3 to pin 1 (do the same starting at the
2nd
>> jack).
>>
>> This works nicely for 2 devices.
>>
>> Does anyone have a pinout diagram for 3 or more devices, or does this
>> require active circuitry?
>>
>> --Paul E Musselman
>> PaulMmn@ix.netcom.com
>>
>> >I need to build a x-over cable to allow me to connect two PCs without
using an
>> >ethernet hub. What I don't know is the pinout and which pair(s?) need to
be
>> >crossed.
>> >
>> >Can anyone help me out?
>
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