Networking problem concerning a DEC TS 90L

Hello from the Eighth Doctor Basically I need to connect a DEC TS 90L who has a COAX port, to a customer's UTP based network. It seems they seem need that gizmo for some work they do based at the other end of their network. I did explain that there is a whole backplane for doing just that, but they refuse to spend the extra money to obtain the backplane. I just finished using a Google based search engines for the DELNI. I would have better luck wiring something of a sort. Does anyone on the NG have just such an item roosting in their equipment room, that they obviously do not need, and would be willing to part with, I'll pay shipping charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything medium sized that's not needed as well, physically. Please e-mail for physical address. -- Gregg drwho8 atsign att dot net

Would think that the solution would be a BNC to UTP Media converter: <$100 at almost any computer supply outlet (CDW, etc) A DELNI is really not the answer in this case (or very many others any more) "The Eighth Doctor" <drwho8__NOTME__@att.net> wrote in message news:_Juje.799313$w62.185428@bgtnsc05-news.ops.worldnet.att.net... > Hello from the Eighth Doctor > Basically I need to connect a DEC TS 90L who has a COAX port, to a customer's > UTP based network. It seems they seem need that gizmo for some work they do > based at the other end of their network. I did explain that there is a whole backplane > for doing just that, but they refuse to spend the extra money to obtain the backplane. > > I just finished using a Google based search engines for the DELNI. I would have > better luck wiring something of a sort. > > Does anyone on the NG have just such an item roosting in their equipment room, > that they obviously do not need, and would be willing to part with, I'll pay shipping > charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything > medium sized that's not needed as well, physically. Please e-mail for physical > address. > -- > Gregg drwho8 atsign att dot net > >

The Eighth Doctor wrote: > > Hello from the Eighth Doctor > Basically I need to connect a DEC TS 90L who has a COAX port, to a customer's > UTP based network. It seems they seem need that gizmo for some work they do > based at the other end of their network. I did explain that there is a whole backplane > for doing just that, but they refuse to spend the extra money to obtain the backplane. > > I just finished using a Google based search engines for the DELNI. I would have > better luck wiring something of a sort. > > Does anyone on the NG have just such an item roosting in their equipment room, > that they obviously do not need, and would be willing to part with, I'll pay shipping > charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything > medium sized that's not needed as well, physically. Please e-mail for physical > address. DELNI doesn't sound right. You're looking for a 10BaseT <-> 10Base2 transceiver of some sort. Push comes to shove, look for a DESPR (10Base5 to 10Base2, sinple 10Base2 port) or a DEMPR (multiple 10Base2 ports), and a DESTA (10Base5 to 10BaseT), at least I think those are the models. Not sure about the -xx suffix for each, though. ....though there's likely a smaller single-unit device that will do the same thing. Have you tried BlackBox? -- David J Dachtera dba DJE Systems http://www.djesys.com/ Unofficial OpenVMS Hobbyist Support Page: http://www.djesys.com/vms/support/ Unofficial Affordable OpenVMS Home Page: http://www.djesys.com/vms/soho/ Unofficial OpenVMS-IA32 Home Page: http://www.djesys.com/vms/ia32/ Coming soon: Unofficial OpenVMS Marketing Home Page

In article <428EA2B7.FF27F7C3@comcast.net>, djesys.nospam@comcast.net says... > >The Eighth Doctor wrote: >> >> Hello from the Eighth Doctor >> Basically I need to connect a DEC TS 90L who has a COAX port, to a customer's >> UTP based network. It seems they seem need that gizmo for some work they do >> based at the other end of their network. I did explain that there is a whole backplane >> for doing just that, but they refuse to spend the extra money to obtain the backplane. >> >> I just finished using a Google based search engines for the DELNI. I would have >> better luck wiring something of a sort. >> >> Does anyone on the NG have just such an item roosting in their equipment room, >> that they obviously do not need, and would be willing to part with, I'll pay shipping >> charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything >> medium sized that's not needed as well, physically. Please e-mail for physical >> address. > >DELNI doesn't sound right. > >You're looking for a 10BaseT <-> 10Base2 transceiver of some sort. > >Push comes to shove, look for a DESPR (10Base5 to 10Base2, sinple >10Base2 port) or a DEMPR (multiple 10Base2 ports), and a DESTA (10Base5 >to 10BaseT), at least I think those are the models. Not sure about the >-xx suffix for each, though. > >...though there's likely a smaller single-unit device that will do the >same thing. Have you tried BlackBox? > >-- >David J Dachtera >dba DJE Systems >http://www.djesys.com/ > >Unofficial OpenVMS Hobbyist Support Page: >http://www.djesys.com/vms/support/ > >Unofficial Affordable OpenVMS Home Page: >http://www.djesys.com/vms/soho/ > >Unofficial OpenVMS-IA32 Home Page: >http://www.djesys.com/vms/ia32/ > >Coming soon: >Unofficial OpenVMS Marketing Home Page Hello from the Eighth Doctor Yes. What they have is too expensive, and poorly suited to my needs. I've got a four port AUI hub that Inmac made about twenty years ago, plus a good count of DESTA units, and an equal number of AUIs that are UTP output. I figured I'd wire my own adapter, if I could not scare up a BNC<-->UTP device. Problem is the first place that Google showed me that might have had them for sale, had discontinued them three years ago. And the first sales 'droid who answered my e-mail, has reached the limits of his programming. I might visit the CDW website, or just keep digging. What I really need is one of the backplanes that the TS plugs into. --- Gregg drwho8 atsign att dot net

The Eighth Doctor wrote: > > In article <428EA2B7.FF27F7C3@comcast.net>, djesys.nospam@comcast.net > says... > > > >The Eighth Doctor wrote: > >> > >> Hello from the Eighth Doctor > >> Basically I need to connect a DEC TS 90L who has a COAX port, to a > customer's > >> UTP based network. It seems they seem need that gizmo for some work they do > >> based at the other end of their network. I did explain that there is a whole > backplane > >> for doing just that, but they refuse to spend the extra money to obtain the > backplane. > >> > >> I just finished using a Google based search engines for the DELNI. I would have > >> better luck wiring something of a sort. > >> > >> Does anyone on the NG have just such an item roosting in their equipment room, > >> that they obviously do not need, and would be willing to part with, I'll pay > shipping > >> charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything > >> medium sized that's not needed as well, physically. Please e-mail for physical > >> address. > > > >DELNI doesn't sound right. > > > >You're looking for a 10BaseT <-> 10Base2 transceiver of some sort. > > > >Push comes to shove, look for a DESPR (10Base5 to 10Base2, sinple > >10Base2 port) or a DEMPR (multiple 10Base2 ports), and a DESTA (10Base5 > >to 10BaseT), at least I think those are the models. Not sure about the > >-xx suffix for each, though. > > > >...though there's likely a smaller single-unit device that will do the > >same thing. Have you tried BlackBox? > > > >-- > >David J Dachtera > >dba DJE Systems > >http://www.djesys.com/ > > > >Unofficial OpenVMS Hobbyist Support Page: > >http://www.djesys.com/vms/support/ > > > >Unofficial Affordable OpenVMS Home Page: > >http://www.djesys.com/vms/soho/ > > > >Unofficial OpenVMS-IA32 Home Page: > >http://www.djesys.com/vms/ia32/ > > > >Coming soon: > >Unofficial OpenVMS Marketing Home Page > Hello from the Eighth Doctor > Yes. What they have is too expensive, and poorly suited to my needs. I've got a > four port AUI hub that Inmac made about twenty years ago, plus a good count of > DESTA units, and an equal number of AUIs that are UTP output. I figured I'd wire > my own adapter, if I could not scare up a BNC<-->UTP device. > > Problem is the first place that Google showed me that might have had them > for sale, had discontinued them three years ago. And the first sales 'droid who > answered my e-mail, has reached the limits of his programming. I might visit the > CDW website, or just keep digging. What I really need is one of the backplanes that > the TS plugs into. Well, that alone won't help you unless you also find the DEChub-90 attached unit that provides multiple UTP ports (DECrepeater-90, don't know the five-character code for that one). -- David J Dachtera dba DJE Systems http://www.djesys.com/ Unofficial OpenVMS Hobbyist Support Page: http://www.djesys.com/vms/support/ Unofficial Affordable OpenVMS Home Page: http://www.djesys.com/vms/soho/ Unofficial OpenVMS-IA32 Home Page: http://www.djesys.com/vms/ia32/ Coming soon: Unofficial OpenVMS Marketing Home Page

David J Dachtera wrote: > > The Eighth Doctor wrote: > > > > In article <428EA2B7.FF27F7C3@comcast.net>, djesys.nospam@comcast.net > > says... > > > > > >The Eighth Doctor wrote: > > >> > > >> Hello from the Eighth Doctor > > >> Basically I need to connect a DEC TS 90L who has a COAX port, to a > > customer's > > >> UTP based network. It seems they seem need that gizmo for some work they do > > >> based at the other end of their network. I did explain that there is a whole > > backplane > > >> for doing just that, but they refuse to spend the extra money to obtain the > > backplane. > > >> > > >> I just finished using a Google based search engines for the DELNI. I would have > > >> better luck wiring something of a sort. > > >> > > >> Does anyone on the NG have just such an item roosting in their equipment room, > > >> that they obviously do not need, and would be willing to part with, I'll pay > > shipping > > >> charges? And if your located in the tri-state area, (NY, NJ, CT), I'll take anything > > >> medium sized that's not needed as well, physically. Please e-mail for physical > > >> address. > > > > > >DELNI doesn't sound right. > > > > > >You're looking for a 10BaseT <-> 10Base2 transceiver of some sort. > > > > > >Push comes to shove, look for a DESPR (10Base5 to 10Base2, sinple > > >10Base2 port) or a DEMPR (multiple 10Base2 ports), and a DESTA (10Base5 > > >to 10BaseT), at least I think those are the models. Not sure about the > > >-xx suffix for each, though. > > > > > >...though there's likely a smaller single-unit device that will do the > > >same thing. Have you tried BlackBox? > > > > > >-- > > >David J Dachtera > > >dba DJE Systems > > >http://www.djesys.com/ > > > > > >Unofficial OpenVMS Hobbyist Support Page: > > >http://www.djesys.com/vms/support/ > > > > > >Unofficial Affordable OpenVMS Home Page: > > >http://www.djesys.com/vms/soho/ > > > > > >Unofficial OpenVMS-IA32 Home Page: > > >http://www.djesys.com/vms/ia32/ > > > > > >Coming soon: > > >Unofficial OpenVMS Marketing Home Page > > Hello from the Eighth Doctor > > Yes. What they have is too expensive, and poorly suited to my needs. I've got a > > four port AUI hub that Inmac made about twenty years ago, plus a good count of > > DESTA units, and an equal number of AUIs that are UTP output. I figured I'd wire > > my own adapter, if I could not scare up a BNC<-->UTP device. > > > > Problem is the first place that Google showed me that might have had them > > for sale, had discontinued them three years ago. And the first sales 'droid who > > answered my e-mail, has reached the limits of his programming. I might visit the > > CDW website, or just keep digging. What I really need is one of the backplanes that > > the TS plugs into. > > Well, that alone won't help you unless you also find the DEChub-90 > attached unit that provides multiple UTP ports (DECrepeater-90, don't > know the five-character code for that one). I think it might be a DETPR that you'd need, but not sure what variant as I believe there was originally a stand-alone/rack-mount unit that was also called DETPR. -- David J Dachtera dba DJE Systems http://www.djesys.com/ Unofficial OpenVMS Hobbyist Support Page: http://www.djesys.com/vms/support/ Unofficial Affordable OpenVMS Home Page: http://www.djesys.com/vms/soho/ Unofficial OpenVMS-IA32 Home Page: http://www.djesys.com/vms/ia32/ Coming soon: Unofficial OpenVMS Marketing Home Page

drwho8__NOTME__@att.net (The Eighth Doctor) writes: > Yes. What they have is too expensive, and poorly suited to my > needs. I've got a four port AUI hub that Inmac made about twenty > years ago, plus a good count of DESTA units, and an equal number of > AUIs that are UTP output. I figured I'd wire my own adapter, if I > could not scare up a BNC<-->UTP device. There used to be Baluns for going from 10b2/5 to 10bT, but they where pretty fussy and no one used them. > Problem is the first place that Google showed me that might have had > them for sale, had discontinued them three years ago. And the first > sales 'droid who answered my e-mail, has reached the limits of his > programming. I might visit the CDW website, or just keep > digging. What I really need is one of the backplanes that the TS > plugs into. Why not use the BNC port on the side with power pack? You don't HAVE to have a 90/900 backplane. -- Paul Repacholi 1 Crescent Rd., +61 (08) 9257-1001 Kalamunda. West Australia 6076 comp.os.vms,- The Older, Grumpier Slashdot Raw, Cooked or Well-done, it's all half baked. EPIC, The Architecture of the future, always has been, always will be.

In article <87u0kwawtc.fsf@prep.synonet.com>, prep@prep.synonet.com says... > >drwho8__NOTME__@att.net (The Eighth Doctor) writes: > >> Yes. What they have is too expensive, and poorly suited to my >> needs. I've got a four port AUI hub that Inmac made about twenty >> years ago, plus a good count of DESTA units, and an equal number of >> AUIs that are UTP output. I figured I'd wire my own adapter, if I >> could not scare up a BNC<-->UTP device. > >There used to be Baluns for going from 10b2/5 to 10bT, but they where >pretty fussy and no one used them. > >> Problem is the first place that Google showed me that might have had >> them for sale, had discontinued them three years ago. And the first >> sales 'droid who answered my e-mail, has reached the limits of his >> programming. I might visit the CDW website, or just keep >> digging. What I really need is one of the backplanes that the TS >> plugs into. > >Why not use the BNC port on the side with power pack? You don't HAVE to >have a 90/900 backplane. > >-- >Paul Repacholi 1 Crescent Rd., >+61 (08) 9257-1001 Kalamunda. > West Australia 6076 >comp.os.vms,- The Older, Grumpier Slashdot >Raw, Cooked or Well-done, it's all half baked. >EPIC, The Architecture of the future, always has been, always will be. Hello from the Eighth Doctor And how would I do that? My network is entirely 10BASE-T here. My only Linux box doesn't use ISA slots, and worse, the targeted customer for my idea has actually refused to pay for the necessary retooling to enable COAX to be reinstalled. Still my next step is to visit the Tyco Electronics, Amp division site, they've been pretty helpful in the past. -- Gregg drwho8 atsign att dot net

The Eighth Doctor wrote: > > In article <87u0kwawtc.fsf@prep.synonet.com>, prep@prep.synonet.com says... > > > >drwho8__NOTME__@att.net (The Eighth Doctor) writes: > > > >> Yes. What they have is too expensive, and poorly suited to my > >> needs. I've got a four port AUI hub that Inmac made about twenty > >> years ago, plus a good count of DESTA units, and an equal number of > >> AUIs that are UTP output. I figured I'd wire my own adapter, if I > >> could not scare up a BNC<-->UTP device. > > > >There used to be Baluns for going from 10b2/5 to 10bT, but they where > >pretty fussy and no one used them. > > > >> Problem is the first place that Google showed me that might have had > >> them for sale, had discontinued them three years ago. And the first > >> sales 'droid who answered my e-mail, has reached the limits of his > >> programming. I might visit the CDW website, or just keep > >> digging. What I really need is one of the backplanes that the TS > >> plugs into. > > > >Why not use the BNC port on the side with power pack? You don't HAVE to > >have a 90/900 backplane. > > > >-- > >Paul Repacholi 1 Crescent Rd., > >+61 (08) 9257-1001 Kalamunda. > > West Australia 6076 > >comp.os.vms,- The Older, Grumpier Slashdot > >Raw, Cooked or Well-done, it's all half baked. > >EPIC, The Architecture of the future, always has been, always will be. > Hello from the Eighth Doctor > And how would I do that? My network is entirely 10BASE-T here. My only Linux > box doesn't use ISA slots, and worse, the targeted customer for my idea has > actually refused to pay for the necessary retooling to enable COAX to be reinstalled. O.k. You don't have to reveal any specifics, but that makes me wonder why this remains a lucrative/valuable customer. Referrals? Contacts? References? Relationships? > Still my next step is to visit the Tyco Electronics, Amp division site, they've been > pretty helpful in the past. Have you tried Digital Networks, successor to DEC in the terminal server and DEC network gear biz? http://www.dnpg.com/ They have a terminal server that connects directly to 10bT. A self-loading DECserver-700 might be good. ....or shop eBay for a Lantronix unit, or some small, inexpensive 10bT LAT-based server. -- David J Dachtera dba DJE Systems http://www.djesys.com/ Unofficial OpenVMS Hobbyist Support Page: http://www.djesys.com/vms/support/ Unofficial Affordable OpenVMS Home Page: http://www.djesys.com/vms/soho/ Unofficial OpenVMS-IA32 Home Page: http://www.djesys.com/vms/ia32/ Coming soon: Unofficial OpenVMS Marketing Home Page

Shop used. We used (and still use in few places) a bog-standard 10Base-T hub with a BNC uplink port to connect older thinwire gear to a 10Base-T network. Netgear EN308 and a bunch of the low-end external power supply hubs had them; Hawkings, 3Com, Intel, DLink, all the makers of low end networking (and some high end ones) used to make these. Check Ebay, I bet you can pick one up dirt cheap. These hubs were nearly always cheaper than the single port media convertors others have mentioned. Sorry, I don't have spares I can spare; they are kept in reserve for those remaining customers.

drwho8__NOTME__@att.net (The Eighth Doctor) writes: > And how would I do that? My network is entirely 10BASE-T here. My > only Linux box doesn't use ISA slots, and worse, the targeted > customer for my idea has actually refused to pay for the necessary > retooling to enable COAX to be reinstalled. > Still my next step is to visit the Tyco Electronics, Amp division > site, they've been pretty helpful in the past. OK, see if they have a balun, AMP used to make tham AIR. Keep the cables short and you should be fine. Or if you can find two back units and powerpacks to hook a T repeater to the TS with a coax. Or a unit with an AUI and T tranciever. -- Paul Repacholi 1 Crescent Rd., +61 (08) 9257-1001 Kalamunda. West Australia 6076 comp.os.vms,- The Older, Grumpier Slashdot Raw, Cooked or Well-done, it's all half baked. EPIC, The Architecture of the future, always has been, always will be.

The Eighth Doctor wrote: > In article <87u0kwawtc.fsf@prep.synonet.com>, prep@prep.synonet.com says... > >>Why not use the BNC port on the side with power pack? You don't HAVE to >>have a 90/900 backplane. > > Hello from the Eighth Doctor > And how would I do that? My network is entirely 10BASE-T here. My only Linux > box doesn't use ISA slots, and worse, the targeted customer for my idea has > actually refused to pay for the necessary retooling to enable COAX to be reinstalled. Check to see if one of your 10baseT hubs has a coax or AUI port on the back. Many of them do. If you find a coax connector, you should be able to hook it up with a pair of T's, a pair of 50ohm terminators, and a length of cable. If you don't find a coax connector, but you do find an AUI port, use an AUI to coax transceiver and then the T's, terminators, and cable. Alternately, you can usually find a used/refurbished 10baseT hub with a coax connector for less than a coax to 10baseT media converter. The last time I needed to do this, I got a refurbished 16 port Netgear hub for $20. Good luck! -- ----------------------------------------------------------------------- Chris Scheers, Applied Synergy, Inc. Voice: 817-237-3360 Internet: chris@applied-synergy.com Fax: 817-237-3074