10 Apr
2012
10 Apr
'12
12:48 p.m.
Frankly, IBM terminal land is completely unknown to me. I am looking
for a volunteer to contribute information about terminals from IBM and
other manufacturers that were intended for the IBM mainframe world.
Let me know if you're interested! The pay is nonexistent and it's
entirely a labor of love on your part, but I think we're off to a good
start. However, the wiki is almost completely lacking on IBM
mainframe type terminals.
--
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<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
10 Apr
10 Apr
5:30 p.m.
On 10/04/2012 17:48, Richard wrote:
Frankly, IBM terminal land is completely unknown to
me. I am looking
for a volunteer to contribute information about terminals from IBM and
other manufacturers that were intended for the IBM mainframe world.
What about the
IBM mid-range terminals for System/3 System/36, System/38
and AS/400. Originally they were completely incompatible with
S/360/370/390 terminals. I was told this was so that if IBM was split in
ant-trust rulings each division would have its own terminals.
Let me know if you're interested! The pay is
nonexistent and it's
entirely a labor of love on your part, but I think we're off to a good
start. However, the wiki is almost completely lacking on IBM
mainframe type terminals.
6:53 p.m.
In article <4F84A667.8050502 at gmail.com>,
Dave Wade <dave.g4ugm at gmail.com> writes:
On 10/04/2012 17:48, Richard wrote:
s/mainframe//
Doesn't have to be mainframe. Expertise is the more important part :-).
For instance, does baud rate even apply to a twinax terminal? I don't
know and life's too short to learn everything, as much as I'd like :-).
--
"The Direct3D Graphics Pipeline" -- DirectX 9 version available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
Frankly, IBM terminal land is completely unknown
to me. I am looking
for a volunteer to contribute information about terminals from IBM and
other manufacturers that were intended for the IBM mainframe world.
What about the
IBM mid-range terminals [...] 
7:07 p.m.
On 04/10/2012 06:53 PM, Richard wrote:
s/mainframe//
Doesn't have to be mainframe. Expertise is the more important part :-).
For instance, does baud rate even apply to a twinax terminal? I don't
know and life's too short to learn everything, as much as I'd like :-).
I can help out with a lot of that stuff.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Frankly, IBM terminal land is completely unknown to
me. I am looking
for a volunteer to contribute information about terminals from IBM and
other manufacturers that were intended for the IBM mainframe world.
What about the
IBM mid-range terminals [...]
7:21 p.m.
On 10/04/2012 23:53, Richard wrote:
In article<4F84A667.8050502 at gmail.com>,
Dave Wade<dave.g4ugm at gmail.com> writes:
It will have one!.
From what I remember 3270 COAX terminals run an
1.5Megabaud
On 10/04/2012 17:48, Richard wrote:
s/mainframe//
Doesn't have to be mainframe. Expertise is the more important part :-).
For instance, does baud rate even apply to a twinax terminal? Frankly, IBM terminal land is completely unknown
to me. I am looking
for a volunteer to contribute information about terminals from IBM and
other manufacturers that were intended for the IBM mainframe world.
What about the
IBM mid-range terminals [...] I don't
know and life's too short to learn everything, as much as I'd like :-).
9:22 p.m.
In article <4F84C06B.6000902 at gmail.com>,
Dave Wade <dave.g4ugm at gmail.com> writes:
Yeah, from reading Wikipedia, it seems they all operate at a fixed
baud rate.... which is why I was wondering if baud rate even mattered.
If it's fixed and unvarying, then there's no point in listing it in
the "infobox" for each twinax terminal as I do now for serial
terminals.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 version available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
For instance,
does baud rate even apply to a twinax terminal?
It will have one!. From what I
remember 3270 COAX terminals run an
1.5Megabaud 
11 Apr
11 Apr
8:57 a.m.
On 04/10/2012 09:22 PM, Richard wrote:
Yeah, from reading Wikipedia, it seems they all
operate at a fixed
baud rate.... which is why I was wondering if baud rate even mattered.
If it's fixed and unvarying, then there's no point in listing it in
the "infobox" for each twinax terminal as I do now for serial
terminals.
On the System/3x and AS/400 Twinax terminals there was no setting for
speeds. There is, however, the need to set a device ID much like you do
for SCSI devices. Each port on a twinax controller could handle 8
devices, numbered 0-7. Each device connected would have it's own ID.
Also, each device had a Tee connector or two female twinax ports so that
you could daisy chain the devices.
Early versions of these terminals would use DIP switches to set the ID.
Latter versions used the setup screens in ROM. And one other thing,
some of the more expensive devices could take two IDs, providing two
logical devices in one physical one.
Barry
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