DC The function of this program is to turn on the modem control linesEC DTR and RTS comming from the DMF-32. This is necessary because theOC DMF-32 port 0 and 1 require carrier detect (pin 8) to be present in order to JC work. We achieve this by hooking up a special null modem cable with RTS JC (pin 4) strapped to carrier detect (pin 8) so as to fool the DMF-32 into$C thinking that a modem is attached.CHC Now if we were using a complete RS232 cable with all the wires runningBC from a DMF-32 to a VT100, this would not be necessary. However,JC we typically run only 4 wires, and ports 0 and 1 are unique in that they1C will not work unless carrier detect is present.CHC The function of this program is to force RTS and DTR high so that theyKC can be used for strapping to other lines which want to see a high signal.KC Both lines are force high so that a general purpose modem fakeout pigtailNC can be used: Pin 4 (RTS)-to- pin 5 (CTS) and pin 20 (DTR) -to- pin 6 (DSR)NC -to- pin 8 (CAR). Note dip switch 8 on the DMF32 is closed which ties pin 6C to pin 8 internally.