Let me work on the google issue. On Fri, Apr 5, 2019 at 2:48 PM Thomas Morehouse <[email protected]> wrote:
> This is the time that tries men's souls. > > Google says I need permission to see that photo. > > Using the *correct* serial port (25 pin) - which are the two holes to > shunt? > > o o o o o o o o o o o o > o o o o o o o o o o o o o > > Viewed staring directly at the holes in the port. > > Tom M. > > > On Fri, Apr 5, 2019 at 5:44 PM John R. Hogerhuis <[email protected]> wrote: > >> >> >> On Fri, Apr 5, 2019 at 2:19 PM Thomas Morehouse <[email protected]> >> wrote: >> >>> "Check your USB-Serial cable first. That's the USB cable with a DB-9 >>> male RS232 connector. Plugged to the PC. No cables connected to it. >>> >>> Type in TeraTerm. Question: Do you see any characters? If so, you have >>> echo on. If not, echo is off. Go into TeraTerm settings and turn echo on, >>> and try again until you see the characters you type." >>> >>> OK - only the usb/serial cable, plugged into usb port of laptop. No >>> characters appear. Change TeraTerm Terminal (VT100) to Echo. Characters >>> appear. >>> >>> Next step: >>> >>> "Short pin 2 to pin 3 on the DB-9. >>> >>> Type in TeraTerm. >>> >>> If you see only see one character per keypress, the adapter fails the >>> test. If you see 2 characters per test (one for the echo, and one >>> transiting the cable) then it passes the test." >>> >>> I shorted 2 and 3 on the DB9 end of the usb/serial cable, while cable is >>> still plugged into usb port. >>> >>> I typed one character. One character appeared on laptop screen. >>> >>> >> >> >> >>> Seems strange the 2 - 3 shunt on the 102 pins would fail loopback test >>> *and* the 2 - 3 shunt on the cable fails the test on the laptop also. >>> >>> >> Well we know why that is, because you were using the barcode port. Could >> you try a simple loopback again on the M100 to confirm no issue? >> >> I've seen very few failed M100 RS232C ports. >> >> Here's a picture of my silly loopback on the m100. Just a male DB25 >> connector plus a paper clip. Only because I don't want to risk damaging the >> M100 connector by shoving the wrong gauge wire into it. >> >> m100_loopback.jpg >> <https://drive.google.com/file/d/1B5CNzk_1-T8HTtxrDu9UJPd83t6l0CoO/view?usp=drive_web> >> >> >> -- John. >> >>
