Re: Connecting a Stinkpad to the AS/400

["David Nettles" <dnettl@xxxxxxx>]

I've connected ThinkPads utilizing the ibm docking station using isa 5250
and ethernet cards.  No 
problem at all when I did away with the IBM PC OS and installed real
Micro$oft.
Same results with Aptivas.  Do away with IBM PC OS and go with Micro$oft
and strange 
problems go away.  Strange and interesting, but tactic has solved several
head aches concerning
ibm brand pc's connectivity to 400s.  

ojt
david

> The only ThinkPad I've connected via Twinax was a model 760L (760EL ?).
> Using CA/400 for Win 3.1 V3R1M1 and I had a problem because we have
Twinax
> baluns, hub & twisted pair wiring.  The setting of CheckAddr=No in the
> PCSTDLC.DAT file fixed the problem with twisted pair.
> (By the way, it has an IBM PCMCIA 5250 adapter.  IBM just came out with a
> newer 5250 Express adapter but ovbiously haven't tried it yet).
> Anyway, we upgraded this ThinkPad to Windows95 and CA/400 for Win95
V3R1M2
> with the new 32bit Twinax support.   Could not get the ba***ard to work 
> with the UTP wiring (have sent a few traces to IBM and they are currently

> looking at the problem) - BUT the connection does work flawlessly if you
> have the real twinax cable (you know, the stuff that you can use to moor
an
> Oil Tanker with if necessary).  A salesman took the ThinkPad to IBM
Jamaica
> for a week of demos and had no problem with real twinax cabling.
> Have also looked into the Affinity Systems Plug 'N Play 5250 adapter but
> have not yet tested one.
> ...Neil
> (PS - we also couldn't get an Aptiva connected via either twinax or SDLC
> adapters, but it worked OK with a PCI Ethernet card running both AnyNet
> under Win 3.1 and TCP/IP under Win95.

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