No, those separate inputs are actually connected together in the power supply. There is a description of that on the hardware documentation for the QFX3600 (which uses the same DC power supply as the EX4550): http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications/dc-power-supply-qfx3500.html
"*Caution: *The V+ terminals are shunted internally together, as are the V- terminals. The same polarity terminal can be wired together from the same source to provide an additional current path in a higher power chassis. Do not connect the terminals to different sources." For A/B use, install two separate power supplies. On Sun, May 26, 2013 at 10:08 PM, Jed Laundry <jlaun...@jlaundry.com> wrote: > Hello, > > I see that the DC power supplies for the EX4550 have two inputs - is this > for A/B systems (what I would expect), or are they wired together in > parallel? > > If A/B, what's the wiring configuration? A1,3 B2,4? > > Thanks, > Jed. > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp