Data General/ASR-33 TTY Interface Signals

Hi, all: I've got a DEC PDP-8/I with the typical current-loop TTY interface. I also have an ASR-33 teletype. The teletype, though, isn't a DEC-modified version; it's got a Data General card in it instead of the 4915 card DEC installed in their teletypes. I'm Data General ignorant, I'm afraid. :/ So here's my questions: -Do your typical Data General systems use a 20ma current-loop to talk with ASR-33s? -What's the pinout for DG/Teletype connections? Is it something that can be made DEC-friendly by simply wiring a different connector to the DG TTY's cables, or are the differences in signals more extensive? -If the solution isn't that simple, does somebody have a 4915 card they wanted to part with (or a schematic of one) (or a DEC-outfitted ASR33 they wanted to trade for a DG-outfitted ASR33 <g>)? Any help appreciated. Thanks! -O.-