Well, there was supposed to be a link, let’s try again.
https://www.amazon.com/gp/product/B075YGKFC1/ref=b2b_gw_d_simh_1_p/139-3401377-1389353?ie=UTF8 <https://www.amazon.com/gp/product/B075YGKFC1/ref=b2b_gw_d_simh_1_p/139-3401377-1389353?ie=UTF8&pd_rd_r=264912cb-fce8-4daf-9d21-b6288ec09c89&pd_rd_w=Xq9BF&pd_rd_wg=wdhVe&pf_rd_p=5ebe1c64-6bb5-46f7-95b1-496db2d01c03&pf_rd_r=GSYA3D0GSGEGKHN9SZY8&refRID=1KWFF9FMCT1JMZ0XJ2FM> &pd_rd_r=264912cb-fce8-4daf-9d21-b6288ec09c89&pd_rd_w=Xq9BF&pd_rd_wg=wdhVe&pf_rd_p=5ebe1c64-6bb5-46f7-95b1-496db2d01c03&pf_rd_r=GSYA3D0GSGEGKHN9SZY8&refRID=1KWFF9FMCT1JMZ0XJ2FM This is just what popped up. It might not have the correct gender of DB9 and it is not a null modem cable if that is what you need. The search term used was : “ftdi usb to serial” if you do need a null modem configuration then use “ftdi usb to serial null modem” Jeff_Birt (Hey Birt!) From: M100 <[email protected]> On Behalf Of Thomas Morehouse Sent: Friday, April 5, 2019 9:10 AM To: [email protected] Subject: Re: [M100] TeraTerm - still not communicating Thanks Jeff. Sorry, but I don't know what you mean by "one of the first cables that popped up on Amazon". Was there supposed to be an attachment or link in your post? Tom M. On Fri, Apr 5, 2019 at 9:50 AM Jeffrey Birt <[email protected] <mailto:[email protected]> > wrote: Here is one of the first cables that popped up on Amazon. This is just a generic SUB<->Serial cable that uses the FTDI chip. If you need one wired as a null modem cable you can find adapters for the DB9 end or just use a search term like “ftdi usb to serial null modem” Jeff_Birt (Hey Birt!) From: M100 <[email protected] <mailto:[email protected]> > On Behalf Of Thomas Morehouse Sent: Friday, April 5, 2019 8:32 AM To: [email protected] <mailto:[email protected]> Subject: Re: [M100] TeraTerm - still not communicating Wow - after several weeks, sounds like I'd need to start over. On the FTDI link, I only see a chip on a board - not a cable. Are we saying I'd need to open the laptop and replace a chip on the m/board, then find new drivers? And if so, how would that affect the TeraTerm, the cable(s) and the null modem adapter that I've tried so far? Thanks. Tom M. On Fri, Apr 5, 2019 at 9:24 AM John Gardner <[email protected] <mailto:[email protected]> > wrote: Yes, but tieing the TX & RX pins together physically tests the whole TX & RX path - And the convertor, on the PC side. Like Birt, I suspect your Prolific device. On 4/5/19, Thomas Morehouse <[email protected] <mailto:[email protected]> > wrote: > John - isn't that the same as using half/full duplex? TeraTerm on Win10 > lets me "echo" sent characters; duplex on TELCOM lets me do the same on the > 102. > > Tom M. > > > On Fri, Apr 5, 2019 at 9:11 AM John Gardner <[email protected] > <mailto:[email protected]> > wrote: > >> You should be able to tie ("loop back") the TX pin of >> >> your convertor to the RX pin, so that sent characters >> >> are echoed to the display. Same deal on the MT side. >> >> >> >> On 4/5/19, John Gardner <[email protected] <mailto:[email protected]> > wrote: >> > Been there, done that - I've had good luck with the FTDI-based >> > >> > convertors sold by Adafruit. Some good tutorials on that site too. >> > >> > https://www.adafruit.com/product/284 >> > >> > On 4/5/19, Jeffrey Birt <[email protected] >> > <mailto:[email protected]> > wrote: >> >> FWIW, I have had very bad luck with Prolific USB<->Serial converters. >> The >> >> have failed to work 90% of the time when I have tried them (on >> >> multiple >> >> platforms, applications, etc.) >> >> >> >> >> >> >> >> FDTI converters are much better, far, far fewer issues. >> >> >> >> >> >> >> >> I’m not saying for certain that the Prolific adapter is your issue but >> if >> >> it >> >> were me, I would suspect it. >> >> >> >> >> >> >> >> Jeff_Birt (Hey Birt!) >> >> >> >> >> >> >> >> >> >> >> >> From: M100 <[email protected] >> >> <mailto:[email protected]> > On Behalf Of Thomas >> >> Morehouse >> >> Sent: Friday, April 5, 2019 7:15 AM >> >> To: [email protected] <mailto:[email protected]> >> >> Subject: Re: [M100] TeraTerm - still not communicating >> >> >> >> >> >> >> >> John - sorry, but I'm a dolt. Unfortunately I have no idea what >> "looping >> >> back both sides" means. >> >> >> >> >> >> >> >> Hitting a brick wall! >> >> >> >> TM >> >> >> >> >> >> >> >> >> >> >> >> On Fri, Apr 5, 2019 at 8:08 AM John Gardner <[email protected] >> >> <mailto:[email protected]> >> >> <mailto:[email protected] <mailto:[email protected]> > > wrote: >> >> >> >> OK. sounds like you know what you're doing. >> >> >> >> Have you tried looping back both sides of the connection? >> >> >> >> On 4/5/19, John Gardner <[email protected] <mailto:[email protected]> >> >> <mailto:[email protected] <mailto:[email protected]> > > >> >> wrote: >> >>> On the Device Manager toolbar, click View & select "Show >> >>> >> >>> hidden devices". What do you see now? >> >>> >> >>> I'm not familiar with Prolific-based USB to Serial devices; >> >>> >> >>> do you have the requisite driver loaded? >> >>> >> >>> On 4/5/19, John Gardner <[email protected] <mailto:[email protected]> >> >>> <mailto:[email protected] <mailto:[email protected]> > > >> >>> wrote: >> >>>> In W10, open the Control Panel, click on Device Manager, >> >>>> >> >>>> click Ports (COM & LPT) - COM1 is normally the default - Is >> >>>> >> >>>> that what you see? >> >>>> >> >>>> On 4/5/19, Thomas Morehouse <[email protected] >> >>>> <mailto:[email protected]> >> >>>> <mailto:[email protected] <mailto:[email protected]> > > wrote: >> >>>>> Gentlemen - >> >>>>> >> >>>>> I've got my 102 connected to my Win10 laptop. >> >>>>> >> >>>>> USB to serial cable, with null modem adapter. >> >>>>> >> >>>>> I've got Telcom STAT set to 57E1E. Then I choose TERM. >> >>>>> >> >>>>> I've got TeraTerm set to Com6/Prolific, with port set to 1200 bps, >> >>>>> 7E1, >> >>>>> xon/off. >> >>>>> >> >>>>> Still no comms either way. Characters typed on either device don't >> >>>>> appear >> >>>>> on the other device. >> >>>>> >> >>>>> I'm just guessing at how to use TeraTerm, as even in the help files >> >>>>> I >> >>>>> find >> >>>>> no "step by step" to connecting. In other words, what to do when. >> >>>>> >> >>>>> Advice from a TeraTerm user needed! >> >>>>> Thanks. >> >>>>> Tom M. >> >>>>> >> >>>> >> >>> >> >> >> >> >> > >> >
