You can hook up the i-Opener modem to a PC (although I don't know why you'd want to). All you have to do is make a crossover cable to your PC's serial port. This involves making a circuit board, so if you don't know about Digi-Key or Jameco, and soldering, I suggest you don't even try. I won't go into detail, but you have to convert the serial ports 10 volt signals into signals (and levels) acceptable for the modem (5 volts). To do this, you need a MAX232 chip from Maxim ic, the good news is that these are free. Just go to Maxim's site http://www.maximic.com , find the MAX232, and add it to your samples cart. they'll send you up to 5. You need some other stuff, but you can find it at your local Radio Shack. Although I hate them. Just find the example circuit on maxim's datasheet for the MAX232, and pretty much just build that. You can find the pinouts for the modem on this BBS. Search for "Modem Pinout" or the like. You also need a 5v DC transformer "wallwart" and a regulator IC, you can find it at Radio Shack. There are other ways to get 5v for your modem, but they are way to complicated to get into in this reply.
Ken (alias: e_go2)
"What if the hokey-pokey really is what it's all about?" | |
