+retroclouds Posted December 14, 2019 Share Posted December 14, 2019 (edited) Here's a little device I bought on ebay. Got it out of curiosity really. Costed me 40 EUR including shipping in Germany. It's a centronics interface that plugs into the sideport. Basically what interested me most is what DSR is included. Appears to have costed 299 german mark back then. That is according to the "Kaufhof" label that is still on the original box. Probably boils down to 300 EUR nowadays. I scanned the device using my own DSR scan program, but nothing shows up. So either the device is broken or it needs power from an external source (the centronics interface?) Anyone else seen such a device before? At least it's new to me. Centronics would be matrix printer style right? Edited December 14, 2019 by retroclouds Pictures added 1 Quote Link to comment Share on other sites More sharing options...
Flottmann1 Posted December 14, 2019 Share Posted December 14, 2019 these hereMBI TI 99 4A auf CENTRONICS RS 232 C Silve Reed ex 42-GER.pdf Quote Link to comment Share on other sites More sharing options...
+retroclouds Posted December 14, 2019 Author Share Posted December 14, 2019 9 minutes ago, Flottmann1 said: these hereMBI TI 99 4A auf CENTRONICS RS 232 C Silve Reed ex 42-GER.pdf Thank you for that. Nice, so the one listed here is the centronics version. I wonder if they wrote an own DSR or if the DSR is ripped out of another device. Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted December 14, 2019 Share Posted December 14, 2019 (edited) here something from the TI-Revue 04-1983 (in german) (I am not sure if it means the same thing because it talks about DIP-switches) MBI-Revue4-83 .pdf Edited December 14, 2019 by Schmitzi 1 Quote Link to comment Share on other sites More sharing options...
fabrice montupet Posted December 14, 2019 Share Posted December 14, 2019 (edited) I think that there were a schematic of a Centronics interface for the TI-99/4A that was floating around the world in 1983 and several companies have used it to propose their own interface. I have a sidecar Centronics interface that uses strictely the same components of this MBI but their positions on the PCB are different. It was sold in France by the "Règle à Calcul" shop. Edited December 14, 2019 by fabrice montupet Quote Link to comment Share on other sites More sharing options...
wolhess Posted December 15, 2019 Share Posted December 15, 2019 On 12/14/2019 at 4:43 PM, retroclouds said: evice using my own DSR scan program, but nothing shows up. So either the device is broken or it needs power from an external source (the centronics interface?) The manual on the last page states that the interface is supplied with power via PIN 18 of the Centronics interface. 1 Quote Link to comment Share on other sites More sharing options...
+retroclouds Posted December 16, 2019 Author Share Posted December 16, 2019 15 hours ago, wolhess said: The manual on the last page states that the interface is supplied with power via PIN 18 of the Centronics interface. Thanks for pointing that out. So this means the MBI could be in a good state and I should be able to dump the DSR. 1 Quote Link to comment Share on other sites More sharing options...
Flottmann1 Posted January 5, 2020 Share Posted January 5, 2020 here the Eprom MBI-2732A.BIN2732A 1 Quote Link to comment Share on other sites More sharing options...
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