Thread View: comp.dcom.lans.ethernet
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8 total messages
Started by I'm a good man
Wed, 28 Aug 1996 00:00
10Base2 segment to RJ-45?
Author: I'm a good man
Date: Wed, 28 Aug 1996 00:00
Date: Wed, 28 Aug 1996 00:00
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At first, I thought by just adding a tranceiver or balun, I could plug the end of a 10Base2 segment to a 10BaseT hub. A while past, I start to wonder this is generally impossible. Do I get anything wrong? Thks for any correction. -- Rgds, Ah Fung (NSR PGM II) (I can't read big5 easily. Thks!) http://netfront.net/~mfchan/
Re: 10Base2 segment to RJ-45?
Author: L. F. Sheldon, Jr.
Date: Wed, 28 Aug 1996 00:00
Date: Wed, 28 Aug 1996 00:00
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On 28 Aug 1996, I'm a good man wrote: > At first, I thought by just adding a tranceiver or balun, I could plug > the end of a 10Base2 segment to a 10BaseT hub. > > A while past, I start to wonder this is generally impossible. > > Do I get anything wrong? Thks for any correction. 10baseT is not the same system as 10base2, except on balanced pairs. There really is not much at the physical layer the same except the copper in the wire. There are "media adapters" available, as are "hubs" with a variety of MDI's (Media Dependent Interfaces). -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- . . - L. F. (Larry) Sheldon, Jr. - . Unix Systems Administration . - Creighton University Computer Center-Old Gym - . 2500 California Plaza . - Omaha, Nebraska, U.S.A. 68178 We are all faced with - . lsheldon@creighton.edu great opportunities . - 402 280-2254 (work) brilliantly disguised as - . 402 681-4726 (cellular) impossible situations. . - 402 977-2946 (pager) - . 402 332-4622 (residence) Bits and Pieces . - - .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
Re: 10Base2 segment to RJ-45?
Author: Richard Slobod
Date: Thu, 29 Aug 1996 00:00
Date: Thu, 29 Aug 1996 00:00
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mfchan@netfront.net (I'm a good man) wrote: >At first, I thought by just adding a tranceiver or balun, I could plug >the end of a 10Base2 segment to a 10BaseT hub. A balun won't do it, but a 10Base2 transceiver will if the hub has an AUI port. Alternately, use a media convertor or an additional hub with a 10Base2 port (that last posssibility will probably require a crossover cable).
Re: 10Base2 segment to RJ-45?
Author: Mike O'Donnell
Date: Thu, 29 Aug 1996 00:00
Date: Thu, 29 Aug 1996 00:00
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mfchan@netfront.net (I'm a good man) wrote: >At first, I thought by just adding a tranceiver or balun, I could plug >the end of a 10Base2 segment to a 10BaseT hub. >A while past, I start to wonder this is generally impossible. >Do I get anything wrong? Thks for any correction. We've looked at converting 10base2 to 10bastT also. The only way to directly connect the thin coax to utp is with a "Media Translator". I've never seen a transceiver that directly goes from BNC to RJ45. All of them are AUI (15 pin) to BNC/RJ45/Fiber, etc). I've seen them in the Black Box catalog, about $150. We ended up getting a 10baseT transceiver with a BNC port. Cost $120 and it gives us 8 UTP ports. A balun will NOT work for this. Those are used to convert the coax signal to run over one pair of utp wires, it doesn't split out the transmit and receive data lines to separate pairs.
Re: 10Base2 segment to RJ-45?
Author: Pong Wai Hing
Date: Thu, 29 Aug 1996 00:00
Date: Thu, 29 Aug 1996 00:00
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L. F. Sheldon, Jr. (lsheldon@creighton.edu) wrote:
> 10baseT is not the same system as 10base2, except on balanced pairs.
> There really is not much at the physical layer the same except the copper
> in the wire.
10baseT uses UTP, 10Base2 uses RG58A/U. They are different, but if one
uses an external transceiver on the BNC connector, the segment can
connect to a HUB. However, I don't know whether the other WS connect to
the HUB must be connected in that way. I want to know what is balanced
pairs, since maybe my understanding is out-of-date.
Thank you very much for answering me.
--
*************************************************
Name : Danny, Pong Wai Hing (�e��y)
EMail: whpong@cs.cuhk.edu.hk
Pager: 79237504
=====> �R�ꤣ�R��, �R�Ҥ��R�� <=====
Computer Engineering, 2/3
The Chinese University of Hong Kong
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Re: 10Base2 segment to RJ-45?
Author: Pak Him Daniel CHENG
Date: Mon, 02 Sep 1996 00:00
Date: Mon, 02 Sep 1996 00:00
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mfchan@netfront.net (I'm a good man) wrote:
I would suggest you to use media convertor which is a cost-effective
solution on your issue. Allied Telesyn offers a kit(MC12T2 kit) for
the media conversion from 10BaseT(RJ45) to 10Base2(BNC) or
10BaseFL(ST/SC/SMA).
Media Converter is not subject to the "four repeater" rule and thus
does not place constraint on the network designer. Cable lenghts can
be constructed as per the max. lenghts defined by IEEE 802.3 standard.
Pls contact to your local sales office for details information or
visit to our WEB site (http://www.alliedtelesyn.com)
Daniel
>At first, I thought by just adding a tranceiver or balun, I could plug
>the end of a 10Base2 segment to a 10BaseT hub.
>A while past, I start to wonder this is generally impossible.
>Do I get anything wrong? Thks for any correction.
>--
>Rgds,
>Ah Fung (NSR PGM II) (I can't read big5 easily. Thks!)
> http://netfront.net/~mfchan/
\|/
(O O)
( )
--------------------------ooo-------------ooo--------------------------
CHENG, Pak Him Daniel (E-mail : daniel_cheng@alliedtelesyn.com)
Allied Telesyn International (HK) Ltd. Tel : (852)-2529-4111
Room 1108, 11th Floor
113 Argyle Street, Kowloon FAX : (852)-2529-7661
Hong Kong
WWW site : www.alliedtelesyn.com
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Re: 10Base2 segment to RJ-45?
Author: Brad Bachman
Date: Wed, 11 Sep 1996 00:00
Date: Wed, 11 Sep 1996 00:00
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mfchan@netfront.net (I'm a good man) wrote: >At first, I thought by just adding a tranceiver or balun, I could plug >the end of a 10Base2 segment to a 10BaseT hub. >A while past, I start to wonder this is generally impossible. >Do I get anything wrong? Thks for any correction. >-- >Rgds, >Ah Fung (NSR PGM II) (I can't read big5 easily. Thks!) > http://netfront.net/~mfchan/ We are using Transition Electronics media converters to convert a couple 10Base-2 segments into 10Base-T to hook into a switch and they work just fine. Transition Electronics is out of Minneapolis MN and the pieces are about $165 each.
Re: 10Base2 segment to RJ-45?
Author: Lon Stowell
Date: Wed, 11 Sep 1996 00:00
Date: Wed, 11 Sep 1996 00:00
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In article <51771p$qed@news.corpcomm.net> bbachma@corpcomm.net (Brad Bachman) writes: > >We are using Transition Electronics media converters to convert a >couple 10Base-2 segments into 10Base-T to hook into a switch and they >work just fine. > >Transition Electronics is out of Minneapolis MN and the pieces are >about $165 each. Or a bit higher than the price of a hub with a cheapernet or AUI port and the security of knowing you haven't violated any standards.
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