[rescue] Sun SBus serial cards

[Lionel Peterson]

I posses (but may not be able to quickly access) a port master terminal server, likely 30 ports (it was a big box), would that be of interest? I'd make it available to you (or any list member) for actual shipping.

But, what really caught my eye was your mention of 'dial up' - please tell me you want external dial-up modems, I have a cache of them that need to find new homes...  Anyone? They are just various models of serial modems, nothing serious/not ISP-grade multi-modem rack shelf's or anything.

Ken

> On Jul 14, 2023, at 09:43, Dave McGuire via rescue <rescue at sunhelp.org> wrote:
> 
> 
>  It would definitely work; that's essentially what the AS5200 was designed to do.  We did it with a great many of them at Digex.
> 
>           -Dave
> 
>> On 7/14/23 10:38, Patrick Giagnocavo via rescue wrote:
>> Have you considered using a separate device like the Cisco AS5200 series, to handle the modems?  Then, just go over Ethernet to the Sparcstation - I think that would work?
>> Cordially
>> Patrick
>> On Thu, Jul 13, 2023 at 9:15 PM Mark Price via rescue <rescue at sunhelp.org <mailto:rescue at sunhelp.org>> wrote:
>>    Hi Doug,
>>        So, you need more async serial ports than the two that came on
>>        the system?
>>    Yes, I'm starting an ISP with dial-in modems, and I currently just
>>    have a Sparcstation.
>>        Most likely the listing you found was for a Sun HSI card, which
>>        in general was
>>        synch serial for supportint X.25 connections. Probably not what
>>        you are looking for,
>>        but was very common so there are lots out there.
>>        There was the SAI (Serial-Async) card, but I had never seen one
>>        in the wild.
>>    I think you're right, I found the manual for the Sun HSI card, and
>>    it can't speak "low speed" serial RS-232.
>>        What most people did needing more async serial ports than 2 was
>>        to run a terminal server
>>        box over the network, such as the Xylogics or Cisco ones.
>>        We had some MicroAnnex XL Xylogics boxes (8 or 16 ports).
>>        Connect up a bunch of modems into the MicroAnnexXL box, and then
>>        they could be setup to telnet/rsh into the Sun box automatically
>>        when dialed into
>>        once the user authenticated via whatever method (probably RADIUS).
>>    Thanks for the tip, I'll check into Xylogics.. I actually have a
>>    Xyplex terminal server, but it has been a total pain to work with.     I know Cisco had the AS5300 with digital modems, but I'm not
>>    familiar with their other terminal server options, I'll check it out.
>>    Mark
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> 
> -- 
> Dave McGuire, AK4HZ
> New Kensington, PA
> 
> 
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