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.


-----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 - Personal Development IBM i timeshare service. - 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:
I can find this link about the 2744
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:

I searched for various models and the 2724.
Supported on:

heck with it, I'm going home for Christmas... Happy Holydays.

Rob Berendt

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