MIGENT.THD --- Copyright 1987 by Phil Wheeler An original compilation of Compuserve Model 100 Forum messages for use by Forum members only. The WorldPort 1200 pocket modem has been very popular in the Model 100 Forum. In many respects the Migent modem is comparable in size and capabilities -- and the Migent seems more popular in other circles (e.g., MS-DOS laptops). This file is made up of Forum messages related to the Migent, and how one member got it and his M100 to speak to one another (after some tavail!). Message range: 150381 to 150773 Dates: 6/16/87 to 6/22/87 Sb: #Migent pocket modem Fm: Bob McArtney 71306,375 To: All I recently purchased a Migent Pocket modem for use with my Model 100 but I cannot get it to work. It operates perfectly with my TRS-80 Model 4 but there is no response at all with the Model 100. Has anyone been successful in this type of hookup? Fm: Denny Thomas 76701,40 To: Bob McArtney 71306,375 Did you go into TELCOM and set your STAT to 57I1E and then hit the F4 key and then type: ATDT(phone number)? If not, the modem will not wake up. I don't have the modem, but if it is Hayes compatible as it is advertised, then the previous commands should work. Also, you might want to try Q-PORT.100 in DL3. That program is set up for the WorldPort modem, but there is an outside chance it might work with the Migent. See W-PORT.DOC for instructions. Fm: Bob McArtney 71306,375 To: Denny Thomas 76701,40 Thank you for your willingness to help. Yes, I did go into TELCOM and set the STAt to 57I1E (I also tried 37I1E), then I went into terminal mode (F4) and tried to type but at 300 baud the modem return gibberish until a key was held down and then it printed correctly. At 1200 baud nothing was returned until a key was held down and then printed correctly. It was possible at the slower speed to occasionally get an "ok" out of the modem but nothing else. I called Migent and they gave an answer immediately making me think that they had seen this problem before. They said type "AT&C1&W". This should change switch 6 relating to carrier detect. I entered the command with my Model 4 since the modem works perfectly with it. But still there was no change with the Model 100. There is a difference with the carrier detect pin between the computers. I just did download both Q-port.100 and wport.doc. Haven't tried them yet. Any other ideas? Fm: Denny Thomas 76701,40 To: Bob McArtney 71306,375 Very strange format that they gave you. Do you really have to put &'s between each command? Most Hayes compatibles can take the commands strung together one after the other, as in: ATZC1DT5551212 That string should reset the defaults, turn carrier detect on, and dial information. Also, I could not find the W command in either my WorldPort or Hayes manual. What did they say it did? From your description, if you had a WorldPort you'd be online by now. Let me know what happens, Fm: Denny Thomas 76701,40 To: Bob McArtney 71306,375 Reading over your message again, I notice that you said you tried to type. You shouldn't be able to do anything except issue valid AT commands. Some modems require that you send them in uppercase. What happens when you type: AT (followed by a carriage return)? You should get the OK prompt on the next line. If you get that far, try the command ATDT999-9999 (any phone number, without the dash). I would pick up the phone and check to see if it is really dialing (if you have it hooked up) If it really dials, try CompuServe and remember to hit or after the the CONNECT response. Geez, what a lot of if's! Fm: Bob McArtney 71306,375 To: Denny Thomas 76701,40 Thanks for your continuing concern to get my Migent pocket modem working. Its a nice unit. Too bad.... The "&" is part of the new Hayes 2400 command structure supported by this modem. E.g. "&C" means DCD ( whatever that is!) is always on; "&C1", as Migent suggested means DCD follows carrier on line. The "&W" writes the change into non-volatile memory. I can't get the modem to accept even an AT command except when I hold down the "A" and as soon as it prints quickly hit the "T", but I'm not fast enough to enter more than that before it prints nonsense again. By the way I ran your "Q-port" and the program said there was NO modem connected although the Migent was. I will probably write to Migent with what has been happening. If you hear of anyone having success please let me know. Fm: Denny Thomas 76701,40 To: Bob McArtney 71306,375 The "no modem connected" display probably means the modem is in some way defective or is set up only for PC type computers. (can't imagine why that would make a differnce) I check for the DTR signal from the modem (Data Terminal Ready) which has to be there if the M100 is going to talk to it. I would mention this to the people at Migent, it might give them a lead. Fm: Phil Wheeler 71266,125 To: Denny Thomas 76701,40 Maybe the software is selective about what it calls a modem! (tee-hee) Fm: Bob McArtney 71306,375 To: Denny Thomas 76701,40 EUREKA! It works! I connected my Migent pocket modem through my Radio Shack RS-232 interface connector and all is well. The connector is designed to switch select three RS-232 devices to the one computer. I usually leave it connected to my Model 4. Somehow it must change the wiring in the RS-232 cable. I can't find the booklet that came with the connector but if I can figure out the wiring I should be able to design a cable to work independently of the connector. I have logged on today with the new modem. Thanks for your interest and help. If I come up with more on this I will put a message on the SIG. Fm: Leonard Erickson 70465,203 To: Bob McArtney 71306,375 I've got one of those RS-232 switches. What it does is not switch the wires, but it *does* supply signals such as DTR (data terminal ready) EVEN IF THE COMPUTER ISN'T SENDING THE SIGNAL! I'd suggest asking Migent which "handshaking" lines their modem needs. The 100 doesn't support all of the "stanard" ones. It while it can receive CTS, DSR, and CD, the TELCOM software *ignores* them. The only other signals are DTR & RTS which it asserts as neccessary (maybe). Fm: BRUCE BATES 73007,2044 To: Bob McArtney 71306,375 Through the "School of Hard Knocks" I have learned (especially with R.S. stuff) that not all connecters/cables are created equal when it comes to RS-232 equipment. For reasons unknown to me (and this goes all the way back to the MOD I) R.S. chose not to use all the available "pins" in the RS-232 interface standard; thus (for cost reasons I guess) when they supplied RS-232 cables for their equipment the wires/pins were purposely left out which represented signal lines that they did not use and/or did not recognize. Bummer, I realize, but that's Tandyland for you ! This may or may not be part of your problem, but keep it in mind just in case. It's not the kind of thing one would go "looking for". Fm: Bob McArtney 71306,375 To: Leonard Erickson 70465,203 Thank you, Leonard, for your reply. I really don't understand a lot about the various "handshaking" going on - I might learn something thru this! I finally decided to keep the modem and I just sent in the registration card. Once Migent gets that they will support questions. They really have a neat modem - IF it will work without a gadget that has to be plugged in! Fm: Bob McArtney 71306,375 To: BRUCE BATES 73007,2044 Thank you Bruce for your reply. I didn't realize that Radio Shucks (sic) left out some of the connecting wires, etc. Figures. I haven't been able to spend a lot of time on this but I'll keep trying! Heath has a kit to help determine which wires go where on an RS-233 - I just might get that. Thanks again.