> Most 3270 terminals seem to be of the (simpler) CUT variant.

I doubt it. Certainly all of these are DFT.

• IBM 3179 G Color Graphic Display Station
• IBM 3192 G Color Graphics Display Station
• IBM 3193 Display Station
• IBM 3194 Display Terminal
• IBM 3290 Information Panel
• IBM 3270 Personal Computer.

Does anybody know whether any of the InfoWindow displays are CUT, and, if so, 
which?

I suspect that it will be easier to modify, e.g., x3270 to support the 3290 
features than to implement DFT without help from IBM, but bitsavers does have 
some 3174 and 3274 CE manuals, and maybe one of them has what you need.



--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3

________________________________________
From: IBM Mainframe Discussion List [[email protected]] on behalf of 
Alexander Huemer [[email protected]]
Sent: Monday, May 11, 2020 2:16 PM
To: [email protected]
Subject: 3270 terminals: CUT vs. DFT

Hi

I have a 3290 terminal that I'd like to put to some use. See email
thread 'Talking to 3270 terminals?' that I started Jan 14.
Somebody then pointed me to oec[1], which is an awesome project. I have
built the hardware interface that is required to talk to a 3270 terminal
on the hardware level. A picture of the interface and a video of the
terminal can be found at [2].

Now, the friendly person who created oec says that the 3290 is a so
called DFT (Distributed Function Terminal), in contrast to a CUT
(Control Unit Terminal). Most 3270 terminals seem to be of the (simpler)
CUT variant. oec only works with CUT terminals. Extending the
functionality to enable it to work with DFT terminals isn't trivial.

Does anybody on the list here know of additional documentation besides
what's mentioned at [3] that could be helpful to implement DFT support?

What would also be very helpful is a protocol trace of any kind of the
communication between a 3174 and a DFT terminal.

-Alex

[1] 
https://secure-web.cisco.com/1NnRTMD_PTNE56hcPN3Zoil25kvZDUUK_aipLBMH0L1wILqqABd8VqLfLufezSPeE_Fl4x00j7t4NfyMBkNjiG9PZJVFzcisGkVw2zDksozehbGrT1dQrE0Ab77RISHAxIQOxnUnRrTtoTrsSrrPsu0jB_gX0Wu7yY3WQm4OWspA270WOpKiWNPsOuRmstQQpzBMsjKSh2liu3id4kuAg3n_Anb4G2bBwbb4hvDUDYwgDt6oVZYjuuMmpgqXD6BoDKPz8h13B3FNewEGGG-ZmkWrk8Ij2IMQB2BwK-56UDvG1tFuhjaZRmy8w4zpndnP-EtTI3GVvakjoOfX9TfnAX8Jkf44VijzUU9DY-2nBQHJtCnhDUEwfezo4317R__cJdwXO34VGrBQVzqETM7RjUNDyRR0uqgmmjgiazA_-Er6FIi6yH2m1euIXZa34S3xhYqqtFwfDa_ElLFDmsmOI2Q/https%3A%2F%2Fgithub.com%2Flowobservable%2Foec
[2] 
https://secure-web.cisco.com/1pSKlPn7aH5BVsfyddjr3HyN_XBjHGssIdgXlLr5CxccG7hAYb_O5qPKiIdRoApG1elM2Wd9QHZu8E-Sc0Xs6zVv0qISCsksY98nFPIe4uoRAieXyzi8hgly4lpVu7klwwS9g8wH1b4FfatJ0HsF1a8dfDnI-6l3OxLz3Jy338dAlfK2uq6u0v4C4M0d81GHudLtr_VFDQylLJhpec2y2uLiLbGwjSHUH35bLwEyjNd3ieBfIBxmlVuhlb3l46ibyiWGouVr4Ik0Gv2xmSL7s7rC35o3kYxwRawP7KL4ODxWKDeikbWKj0j2V8_T4TKfXlwLvH-jYtZ5zOnLAg4DNyo6HSLYXAp0Zv235Je698lh_uza4HemJsGDS2-uZNyNE1cuP43_FPksOmUrw6l7Hb2EzSd_Dthu4mEIpdYKZ3QVTjXl6NCaXqVR0EOhzTiAG/https%3A%2F%2Fahuemer.xx.vu%2Fvolatile%2F2020-05-11-P6C1Wc3u1wU%2F
[3] 
https://secure-web.cisco.com/1lc47FG678Pn52RvDToQE0dXvwOnbKbGRbN6-Isvy6vMB2s_1yJBYWRZduvax-epmacIYbcnUCmIDLFWsbAlx_fWds6f40LanIVAYPxdce1BHtR1n3vOrRj5HYg2a7X0OUGDmyQo5lbNDPJe4_1ZWQef0LNTjfaSRCzPpj3tZII47tuuxs28-fTaGV4MDSgtO9jaD-f7yC5zLnri6JD3NrMLNk_lXBXHB_Hk3br48XLWLuwVAaggwCCR45N5Hu_758ek0a2pzvPqte89y2l8WKPiWo5YcyZ5zBqkVcMMN8_c2GGaFmeCl8oAT8xZPna0HAe9_wOfiXZhazeqZNXgkLTtp5SIkDA-w89OFkBUEiZ7zDJOBlPKrQImvQ80P_BNvWDFPNOV4FkQzE23fVo7OCcs8cz0F3DWBQ9Vv8LZrlyYfNFgscrOK-BreBPLoDCZPagTbpFJQBCNrgWM8LyVDwQ/https%3A%2F%2Fgithub.com%2Flowobservable%2Fcoax%2Fblob%2Fprotocol%2Fprotocol%2Fprotocol.md

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