This did the trick. Thank you. Jim Anderson<https://www.mail-archive.com/[email protected]&q=from:%22Jim+Anderson%22> Wed, 21 Dec 2022 11:50:55 -0800<https://www.mail-archive.com/[email protected]&q=date:20221221> I've run into this before with the 200 - I don't remember if it was CTS or DSR or both that it wants to see asserted, but it definitely does behave differently from the 100 and 102. If you don't have one or both of those lines high, the 200 appears to freeze up if you attempt serial communication using TELCOM (ctrl-Break recovers). The 100 and 102 (at least in TELCOM) don't seem to care.
There's no real harm in jumpering both of these signals high if your wifi modem isn't actively asserting either of them. In a DB9 you would jumper 7 (RTS) to 8 (CTS) and 4 (DTR) to 6 (DSR). In a DB25 those would correspond with 4 to 5 and 20 to 6. From: Joseph Colson III <[email protected]> Sent: Wednesday, December 21, 2022 10:29 AM To: [email protected] Cc: [email protected] Subject: Model 200 issues with Serial Wi-Fi Adapter I have been using a seral Wi-Fi modem with my Model 102 without much fuss for the past few days. I switched it over to the Model 200 and no matter what I did I could not get it to work. I searched the boards and found plenty of discussion on flow control on the WiFI232 modem. While I don't understand it completely, the Model100/102 does not require it while the Model 200 does. The Wifi232 has solderable jumpers to fix this issue. The board I'm using does not have this, so I was considering jumping pins on the DB9 side of the device, however I'm not completely sure what I'm supposed to JUMP. I don't know if all that made much sense. Hopefully, someone can decipher what am asking. Any Help would be appreciated, Joe
