These will run on a uniphase 2114 supply. Just dont plug anything into the round connector (that connector is just for light control and all that good stuff anyway)
Oh yeah... about showa... I believe they bought all the tooling from a laser company and are now manufacturing their heads. cant remember which company but it might have been NEC. Anyway... I've heard they aren't bad lasers, I'd be willing to bet this one runs just fine. And like I said, as far as I know it will plug right into a uniphase power supply with the white 9-pin square terminal. Probably does at least 50mW on all lines.