RE: Token Ring

["Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>]

Back in the 90's, AS/400  days, 9406-D50, 9406-D45, 9404-400 all connected via 2626 16/4 token ring adapter
I remember the Token Ring MAU, which also outputted to a fiber repeater, to another building, fiber repeater, back to a MAU, to a 5494 token ring controller.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Wednesday, December 23, 2015 8:10 PM
To: Midrange Systems Technical Discussion
Subject: Re: Token Ring

The 2744 was THE PINNACLE of Token-Ring development as it ran at a staggering 100 (yes two zeros) Mbps! I installed exactly one of them for a customer who was using Token Ring. Soon as we upgraded to that machine but before we connected it they dropped T/R for Ethernet. :-)

It also supported 16M (and maybe 4M too, I don't recall.)

I'm quite sure that card would work on a POWER6 with PCI-X slots as it took an IOP to drive it.

For all I know it's still works in i 7.2 too as the CRTLINTRN command is still in i 7.2!  AND -trivia of the day- POWERHA supports replicating of Token-Ring lines!

         - Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/23/2015 4:42 PM, rob@xxxxxxxxx wrote:

> A lot later than I thought.
>
> Two token ring adapters come to mind:
> 2724
> 2744
> I can find this link about the 2744
> http://m.ibm.com/http/www-947.ibm.com/systems/support/i/planning/upgra
> de/futuresftwr.html PCI cards, February 2007 (updated April/May 2007, 
> April 2008) IBM plans that the POWER5/POWER5+ based System i models 
> 520, 525, 550, 570, 595 will be the last to support the following 
> older PCI cards. Users may wish to start moving now to newer 
> technology PCI cards to ease future system technology adoption. These 
> older adapters/controllers include:
>
> I can't remember if the 2744 was a special token ring card that was 
> mainly there to support token ring from the FSIOP/IPCS genre of "pc on a card"
>
> I couldn't find anything quite this clear about the 2724.
>
> Looking at this:
> http://www-01.ibm.com/support/docview.wss?uid=ssm1platformibmi
>
> I searched for various models and the 2724.
> Supported on:
> 9406-170.
>
> heck with it, I'm going home for Christmas...  Happy Holydays.
>
>
> Rob Berendt
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