For large plants, the Sageon brand is excellent and for small scale, 48 VDC @ 30 amps the Argus brand is excellent. The Sageon units are stand-alone. The Argus units are rm @ 19" and 23". We use both. David -----Original Message----- From: Frank Bulk [mailto:frnkblk@iname.com] Sent: Wednesday, January 28, 2009 2:27 PM To: deepak@ai.net; nanog list Subject: RE: -48VDC equipment recommendations We're using this a product by C&D and happy with it: http://www.cdstandbypower.com/product/power_sys/system/sageon.html Runs very quietly, very efficient (compared to what we used to have) For our smaller sites, we use Valere: http://www.eltekvalere.com/wip4/telecom/c/detail.epl?cat=11071 It's amazing how compact they've made these units. Frank -----Original Message----- From: Deepak Jain [mailto:deepak@ai.net] Sent: Tuesday, January 27, 2009 5:35 PM To: nanog list Subject: -48VDC equipment recommendations Who does everyone like for -48VDC power systems nowadays (say in the 60A @48VDC and 600A@48VDC sizes). Something like you'd deploy in a POP or a 10-rack MMR with A&B. Management/no-management, not a big deal. Off-list is fine, and I'll be glad to summarize for the list. Thanks in advance, Deepak