Re: WTB 1 x specialix - modular terminal adapter
From: dba (usenet_at_databack.com.au)
Date: 03/25/05
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Date: Fri, 25 Mar 2005 10:17:16 GMT
"Bill Vermillion" <bv@wjv.com> wrote in message news:IDwAsw.1pDM@wjv.com...
> In article <gCL0e.10893$C7.426@news-server.bigpond.net.au>,
> dba <usenet@databack.com.au> wrote:
>>
>>"Bill Vermillion" <bv@wjv.com> wrote in message
>>news:IDw0v0.1EBD@wjv.com...
>>> In article <OgK0e.10805$C7.2153@news-server.bigpond.net.au>,
>>> dba <usenet@databack.com.au> wrote:
>>>>
>>>>"Tom Parsons" <sconews@tegan.com> wrote in message
>>>>news:20050322122013.21840@tegan.com...
>>>>> dba enscribed:
>>>>> | X-RFC2646: Format=Flowed; Original
>>>>> | Message-ID: <OnL%d.6553$C7.1893@news-server.bigpond.net.au>
>>>>> | Date: Tue, 22 Mar 2005 02:26:54 GMT
>>>>> | NNTP-Posting-Host: 144.131.65.76
>>>>> | X-Complaints-To: abuse@bigpond.net.au
>>>>> | X-Trace: news-server.bigpond.net.au 1111458414 144.131.65.76 (Tue,
>>>>> 22
>>>>> Mar 2005 13:26:54 EST)
>>>>> | NNTP-Posting-Date: Tue, 22 Mar 2005 13:26:54 EST
>>>>> | Organization: BigPond Internet Services
>>>>> | Xref: jpradley.jpr.com comp.unix.sco.misc:86646
>>>>> |
>>>>> | anyone have one of these units?
>>>>> | 8 port or bigger?
>>>>> |
>>>>> | I'm in NSW Australia
>>>>>
>>>>> I've several (48 ports minimum) coming out of service within 7 days.
>>>>> I
>>>>> don't remember the model but MIO comes to mind and Bill is correct,
>>>>> there
>>>>> are many different versions of this, at least some
>>>>> non-interchangeable.
>>>>> I'll have a couple PCI cards also.
>>>>> --
>>>>> ==========================================================================
>>>>> Tom Parsons tom@tegan.com
>>>>> ==========================================================================
>>>>
>>>>
>>>>Thanks.
>>>>I'll find out the model of the card on Monday,
>>>>fwiw it's in a dell poweredge running sco openserver box.
>>>>The non PnP version 3.xx (iirc)
>>>
>>>>Hopefully I can convince one of you to ship to Australia coz I'm having
>>>>a hard time finding one here.
>>>
>>> The Specialix had an XIO system, and a very powerful RIO system,
>>> and one other.
>>>
>>> And I thought Specialix was from Austrailia originally. Or am I
>>> confusing that with Stallion. I always thought it was strange
>>> that two of the best serial boards were made overseas.
>
>>I see a lot of stallion hardware about , I have some cards here
>>in fact, but not so much specialix, I can't even find a website
>>for them.
>
> Smart serial board vendors went away when TCP/IP became ubiquitous
> and cheap. In the past 5 years the only serial thing I touched was
> reconfiguring a modem for a client who took it upon themselves to
> move their entire system from one building to another with marking
> everything carefull.
>
>>The client that needs the board is a small car dealership
>>and they cant justify the cost of an OS upgrade and
>>the hardware that goes with it.
>
>>Two ports on this 8 port board have "died" , hence the need for
>>a replacement.
>
> I've seen that before. And it depends upon the hardware as to
> whether the problem is in the ports or in the board inside the
> system. Some would run a bundle of wires out to the outboard
> ports - which would have NO smarts in them. So your problem could
> be the interface card. Just throwing that out as a possibility.
>
>>I dont suppose there is a way to use the 2 serial ports on the PC
>>itself to replace the 2 dead ports?
>
> No problem. The difference is the CPU will be doing all the work,
> while smart serial system like the Specialix and Stallions were
> 'smart' devices, and all the low level processing was handled by
> the on-board processor instead of the computer. That means that
> the commands you enter at the keyboard are passed to the OS only
> when you finish a complete command. All echoing of characters to
> the screen is done by the board. In using the serial ports each
> character has to be echoed back by the kernel. This is not a
> problem for two ports, but early multi-port serial boards weren't
> all that smart.
>
> In timing of the old board against things like the Specialix system
> resources were 90% less in the smart boards. This makes a real
> difference the more you have. The biggest I had at a client site
> had eight sixteen port boards - with many ports going into
> multiplexors for far cities. We even remoted some of the 16 port
> boards to the far cities. I DO NOT miss that at all. I don't
> even know where my RS232 testers are - and I used to have several.
>
> The only real TCP/IP problem I had was when a client needed their
> IPs at a trade show and we set up the damned route imagineable
> with traffic going from Florida to California up through the
> midwest and to Washington DC. About 6000 miles of connection
> to get to a place 800 miles away by car. Two days and trouble
> shooting through four different providers and talking to NOCs in
> CA, MN, and DC. And at one point one of the telco's had crossed
> the cable connections. But it was all SW and no rewiring a thing.
> I'll take that any day.
>
>>The vt100 terminals they use only support rs232,
>>also the place is wired for serial when it was built,
>>there was no cat5 back then.
>
> Nothing wrong with serial except the speed - and in things written
> for pure text terminal applications you normally won't see a
> problem. It's when someone tries to get fancy things get slow.
> It may be as simple as enablling the ports.
>
> That will most assuredly be your quickest and cheapest option.
Bill, your a champ, thanks.
Jack
>
>
>
> --
> Bill Vermillion - bv @ wjv . com
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