This is a questionably "short thread" I stumbled onto while looking for EMfocuser set up information using the Pegasus Astro Ultimate Powerbox v2. After reading the thread though I wanted to offer a few things I 've learned since purchasing the UPBv2 in August. Cable management is in my mind the key selling point. I Love this thing! I have attached this to two different OTAs: an ES 127mm and a Edge 11" SCT. Both OTAs were attached to my iOptron CEM60 mount. I've used both the 12-13.8v DC with my 12V Marine Battery and the 12V On connected via a 20 amp AC/DC power cord. I have two different EMFocusers: a Moonlite CFL 2.5" & High Resolution Stepper Motor on the refractor and a Feather Touch with Focus Boss II on the SCT. I use the UPBv2 software to run both the focusers without additional software using cables with the industry standard pinout (so I am told) for both cables: a DB9 Serial RS232 Port-RJ45 for the Moonlite and a standard CAT5 RJ45-RJ45 for the Feather Touch. I purchased a 3' DB9-RJ45 cable from Amazon: HDE 9-Pin DB9 Serial RS232 Port to RJ45 Cat5 Ethernet LAN Rollover Console Cable Switch Line (Single) for less the $10 US and the other RJ45-RJ45 for a few $ US from my favorite Astro vendor; marketed for a specific brand not Feather Touch to test the "standard pin out" information i was given and they both work great!
In addition connected to the UPBv2 are: the mounts power connection, 3 dew heater straps with the RCA type plugs, a Imaging, Guide, and Polar cameras using USB 2.0 and 3.0 as required and a cooling fan power connection. A single USB 3.0 15' cable goes to my laptop; the only other cable leaving the mount set up besides the power. The temperature and humidity sensor works great but be careful how you mount it; veins down or at least at a 45 degree angle to help keep moisture out.
Over the years I've made some very bad purchases! Money down the toilet and in this hobby where; more money, more money, more money is the montra, this tool is everything it claims to be and worth every penny I spent purchasing it! When I think of all the cables, controllers and power sources I uses to need to have an enjoyable night imaging........, well no more!!!!!. I will be purchasing a mini computer as soon as I have some extra cash to spend; I now have a bunch of very expensive controllers I can now get ride of! anybody.......? :-)
Reading this thread I didn't learn a thing about "properly" setting up my focusers for uses with UPBv2 and so far I haven't found any offers on the internet. I am able to achieve and maintain focus for my acquisitions but..... if anyone knows where that information is I'd greatly appreciate the assistance.