DEC 874-A Power Conditioner

Thanks to comments from Tony, Julian and Henk, I think I now understand how this thing works. I'm not _quite_ ready to power up the CPU so I haven't confirmed the AUX ON/OFF front panel switches functionality, but based on the responses, it seems clear what I should expect. I have, however, confirmed the functionality of the Local On and Remote On settings on the 874 itself, and can confirm that the 3-conductor link between the two 874's is doing it's job properly. In response to Julian's interest, here's the configuration of this 11/23+ system: - KDF11-BA processor -- 512MB (MSV11-PL) -- x2 4-line serial muxes (DZV11) -- a single line (DLV11) -- Controllers for the drives (RLV12 & RXV21) - x3 RL02 w/ a handfull of diskpacks - RX02 dual-drive - x2 VT100 - x2 VT102 - LA120 As I mentioned in the original post, this is all housed in a dual-wide 40" roll-away cabinet (frankly, I have no idea what it's model designation is) with two side-panels/uprights and a connecting 'panel' in between. And, I've got an ASR33 on hand that I might hook up later, for grins. I've got RT11 on the disks right now, and though my eventual goal is to get RSTS running (thanks, Julian, for the offered assistance!), I'm actually going to spend some time with the RT11 first, getting familiar with that, also for grins. Again, thanks to all for the heads up on how this power gear works. J.