https://onedrive.live.com/redir?resid=9EB0E72EE55E4704!179&authkey=!AAd-Dr9glM_pTj4&ithint=file%2cpdf [https://p.sfx.ms/icons/v2/Large/Pdf.png]<https://onedrive.live.com/redir?resid=9EB0E72EE55E4704!179&authkey=!AAd-Dr9glM_pTj4&ithint=file%2cpdf>
how to make a tpdd1 tpdd2 cable.pdf<https://onedrive.live.com/redir?resid=9EB0E72EE55E4704!179&authkey=!AAd-Dr9glM_pTj4&ithint=file%2cpdf> onedrive.live.com PDF File i only did this documentation, someone else figured out the schematic. ________________________________ From: M100 <[email protected]> on behalf of John R. Hogerhuis <[email protected]> Sent: Thursday, January 14, 2016 8:08 PM To: Model 100 Discussion Subject: Re: [M100] TPDD2 Data cable pinout? On Thu, Jan 14, 2016 at 11:49 AM, Mike Stein <[email protected]<mailto:[email protected]>> wrote: 'Stealing power' (AKA parasitic power) from the control lines is a fairly common technique in the RS-232 gadget world: http://www.epanorama.net/circuits/rspower.html I think in the case of the TPDD it was used in the LapDos cable to power a *real* CMOS TTL<>RS-232 converter IC to connect to the higher voltage levels of a PC; the kludge in the M100 cable would not be adequate. m Well I've used a real TPDD cable with a real TPDD and USB -> RS232 ports. It works. I don't remember whether I've ever tried it with an actual PC serial port. -- John.
