We use ServerTech for -48Vdc switching, http://www.servertech.com/products/-48vdcpowermanagement/ Not quite remote-hands cheap, but worth every penny in a pinch. On 01/28/2015 08:38 PM, Robert Drake wrote:
For larger DC devices with ~50amps per side, does anyone have a software accessible way to turn off power?
I've looked into PDU's but the ones I find have a max of 10amps.
I've considered building something with solenoids or a rotary actuator that would turn the switches on or off, but that's a complete one-off and would need to be done for each device we manage (not to mention it involves janky wiring all over the place I've got to explain to the colo)
My use case is pretty infrequent so it needs to be remote-hands cheap.. it's for emergencies when you need to completely power cycle a redundantly powered DC device. The last time I needed this it was because a router was stuck in a boot loop due to a bad IOS upgrade and wouldn't break to rommon since it had been >60 seconds. It came up again tonight because we wanted to disable one power supply to troubleshoot something.
FWIW, I believe I've seen newer Cisco gear with high-end power supplies that have a console or ethernet port which would possibly let you shut them down remotely. That solves the problem nicely if you're dealing with only one bit of hardware, but I'd like a general solution that worked with any vendor. Possibly a fuse panel with solenoids that could add/remove fuses when needed.. or would that be considered dangerous in code-ways or in telco fire regulation ways?