tn5250 and IBM 3151 terminals.

Hello everyone,

Well, after a couple of weeks of trial and error (and of reading IBM's 
programmer's guide for the IBM 3151) I've come up with a semi-
working setup using the 3151->Linux Host->AS/400 setup 
discussed sometime during February.

Of course, now I've come back with more questions. I got the 
Function keys to work by programming them do send a different 
escape sequence than the original setup. It seems like the 3151 
sends something called AID (Attention IDentification) codes to the 
host (which I guess is IBM's way of saying escape sequence) and 
the original ones didn't quite work with tn5250. Example: F1 is 
ESC-a with a CR appended to it. F1 would work quite well in other 
programs, but not tn5250. So I located a programmer's guide, and 
re-assigned the function keys to send a localized escape 
sequence (i.e. Instead of sending the ESC-a sequence to the host, 
it works as if the user pressed the ESC key and then the sent a 
lowercase a. Of course I had to change the terminfo entry, and 
everything works great with the function keys, but...

The arrow keys don't work at all. It seems as if the up arrow sends 
the sequence Ctrl-A as everytime I press it, it takes me to an 
Attention Key screen. The down arrow key works, but not the left 
or right arrow keys. I was wondering if anyone could help me out 
with this predicament (sp?)

In a better note, I was able to map the escape sequence sent by 
the Clear and Erase EOF keys to do the PageUp and PageDown 
function. Unfortunately, this only works with any program other 
than tn5250. Does tn5250 use the terminfo entry? Does that make 
a difference?

Once again, any input is greatly appreciated...we're looking to 
finding some emulation cards (the 3151 can accept emulation 
cards which can emulate either a WYSE50/50+ or DEC terminals) 
although I've tested the WYSE50 emulation but then the 
Return/Enter key doesn't work quite well...only in tn5250 though.

Jose Sanchez
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