CompuServe Thread

#USR Courier

4 messages in this thread
#13025From: Scott ShukatMar 29, 1986 5:07 PM
Understanding this is the Amiga forum I take the liberty of using the forum to ask some help trying to get the Courier to work with the CBM-64 and the Omnitronix RS-232 interface. The pins all look to send the proper signals, and I am making the proper changes to my Vidtex 4.2 terminal program, or the PRoTerm program I also use. Still I have no luck. I am sending the AT commands, and when I turn the modem I send the AT command and get back an OK, however that's it. The speaker volume is up all the way, but I can't get the modem to dial or even hear the dial tone thru the modem speaker. Again, may of you know the 64, so if anyone can help I'd appreciate it. Let's face it I'm sitting here with a modem that cost $425. that I can't even use to go 1200 baud with, and that's why I bought it. Thanks again.Scott * Replies: 13036, 13039
#13036From: Richard WebbMar 29, 1986 7:29 PM
If you get an "OK" back when you send an "AT<CR>", then there doesn't seem to be any reason for the modem not to dial, etc. What happens when you send it a full dialing string? * RR 13025 +
#13039From: Lloyd W. Dull IIIMar 29, 1986 7:38 PM
Scott, It might be the autodial routine in the terminal program that you are using. When I had my 64, I would sometimes have to use the AT commands to dial, rather then the built-in routines. I believe that this is the case with VIDTEX. Try this — ATDPxxx-xxxx . The 'P' is for PULSE dialing – if your line can use tone, substitute a 'T'. If you can't use tone, and you are trying to dial out tone (a default that many programs unfortunately assume), nothing will appear to happen. Lloyd W. Dull III 74555,736 * Reply: 13060 * RR 13025 +
#13060From: scott drysdaleMar 30, 1986 12:30 AM
this is for scott shukat: i hope you have an rs232 converter cartridge plugged into the user port! if not, you risk blowing up your 64! the 64's user port is TTL levels – not rs232. if you know anything about hardware, you can build one real cheap (rectumfry the 9VAC lines to get +/-12V) and use 1488/1489 chips to do the level translation. or you can get lazy and buy the rs232 cartridge someplace. –Scotty * RR 13025