[c-nsp] DC powering for 3845 router

[Frank Bulk]

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.

Are there any shortcuts here?  The documentation, both online and printed,
is pretty sparse about the dual-power supply situation.

Kind regards,

Frank