[c-nsp] DC powering for 3845 router

[Mikael Abrahamsson]

On Tue, 11 Sep 2007, Frank Bulk wrote:

> Our installers are balking at the 19 W requirements, per DC power supply,
> for the two 3845 routers we purchased.  Since we have a redundant power
> supplies, it looks like a total of 4 power supplies totaling 76 W.

Hmm, as far as I can read from:

http://www.cisco.com/en/US/products/ps5855/products_installation_guide_chapter09186a00802ccf2c.html

"36-60 V, 13 A, positive or negative, single or dual source"

13A at 48VDC is 624W.

Most likely the router will never use more than 13A from any given source 
and I'd imagine that getting a 16A fuse per feed for this, two feeds, 
shouldn't be a huge problem?

What is it they're "balking" about exactly?

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se