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Base2 to BaseT - how to connect
AndK Jul-11-02 11:44 AM
Hi All,

How can a connection of an UTP network be made to a tee on a 10Base2 network?
What kind of equipment is required?

Rewiring an old coaxial cabling would be extremely awkward (from the point where fibre optic lines enter the building.

Cheers

Andrzej


2. RE: Base2 to BaseT - how to connect
lbyard Jul-11-02 02:27 PM
In response to message 0
Rewiring seems to me to be a better solution than the more awkward configuration of going from fiber optic to an ancient 10 MHz network to a 100 MHz segment. I would rewire or continue with coax (which I really wouldn’t do unless it were a temporary connection). There are/were twisted pair hubs with a 10BASE2 connector. I just went through the 2-inch thick, 1999-2000 Black Box catalog (http://catalog.blackbox.com/BlackBox/Templates/blackbox/mainscreen.asp) and couldn’t find a thing that will do what you want. So, I guess 10BASE2 is getting pretty darn obsolete. Perhaps a visit to your local Computer Store will turn up an old hub. I sold mine. Larry

3. RE: Base2 to BaseT - how to connect
AndK Jul-11-02 03:19 PM
In response to message 2
Larry,
Thankyou very much for your response.

>Rewiring seems to me to be a better solution than the more
>awkward configuration of going from fiber optic to an
>ancient 10 MHz network to a 100 MHz segment. I would rewire
>or continue with coax (which I really wouldn’t do unless it
>were a temporary connection).
Yes, I know, the whole affair is rather stale but the building is very old and getting permission to do any work will take yonks if it comes through at all. We are going to be out of that location anyway.

>There are/were twisted pair
>hubs with a 10BASE2 connector. I just went through the
>2-inch thick, 1999-2000 Black Box catalog
>(http://catalog.blackbox.com/BlackBox/Templates/blackbox/mainscreen.asp)
>and couldn’t find a thing that will do what you want. So, I
>guess 10BASE2 is getting pretty darn obsolete. Perhaps a
>visit to your local Computer Store will turn up an old hub.
>I sold mine.

I have just found:

Surecom EP-508T
9-Port 10BASE-T Mini Hub at
http://www.surecom.com.tw/pd508t.htm
It's got:
"Network Connector: 1 BNC port and 8 RJ-45 Ports"

They seem to have a local stockist but this particular model is not on their list, seems it's going to be fun

One more question if I may, would it do the job? I mean, is as straightforward as connecting the coax to the BNC and an UTP to one of the RJs?

The idea is to build a small LAN behind an SMC 7008BR router/switch. I know it seems pathetic to go to the fibre optics via the 10M bottleneck but they hopefully will feel the limitations for themselves and press for a radical change sooner than later.

Thanks again


4. RE: Base2 to BaseT - how to connect
lbyard Jul-11-02 04:08 PM
In response to message 3
>One more question if I may, would it do the job? I mean, is as straightforward as connecting the coax to the BNC and an UTP to one of the RJs?

Pretty much. See http://duxcw.com/faq/network/thinwire.htm for some info. I have done it so I could test old network adapters in my shop. I used a Kingston Technology hub. Believe they have recently gotten out of the networking business.

If this is for a customer, approach it from how much it is costing them in expensive manhours to be inefficient and push the idea that network adapters are now dirt cheap. Also, a more reliable network is a good selling point. If they play musical chairs and actually use their computers like most organizations, they have 10BASE2 problems. Larry


5. RE: Base2 to BaseT - how to connect
AndK Jul-12-02 03:07 AM
In response to message 4
Thanks a lot!
Will try softly-softly approach. There are too little users to generate any traffic at the moment so the problem cannot be vividly demonstrated to the (non-technically minded) people, yet .

Cheers


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