RANCK@VTVM1.BITNET ("Wm. L. Ranck") (09/25/87)
Hi folks, Has anyone else gotten a Prometheus modem recently? I received a ProModem 2400G in August and was having some problems getting it to work with a PC. So I got out the trusty breakout box and looked at the control signals. It seems that DSR (pin 6) was not true when the modem was turned on. What's more, DCD (pin 8) was true. After playing around with it for a while, I called the factory and got a return authorization. Well, it just came back today and guess what? It still does not assert DSR when the modem is turned on. In fact it seems that DCD is always on when the modem is, and DSR comes on when carrier is detected. That is exactly reverse of what I would expect! Has anyone else seen this? Did I just get a strange unit or is it really designed to reverse the function of DCD/DSR? The factory paperwork says they did an EPROM upgrade, and it now seems to work, but I'm pretty sure this is wrong. Bill Ranck