I've got a couple of 6509s running 2500 watt power supplies which plug into 20amp circuits.
The "show power" readings in the CLI however don't 'jive' with reality
- at least not the raw numbers. If there is some funny math going on I haven't been able to find an explanation on the CCO site.
Here's the show power output:
6509#sho power system power redundancy mode = combined system power total = 3780.00 Watts (90.00 Amps @ 42V) system power used = 1832.88 Watts (43.64 Amps @ 42V) system power available = 1947.12 Watts (46.36 Amps @ 42V) Power-Capacity PS-Fan Output Oper PS Type Watts A @42V Status Status State
---- ------------------ ------- ------ ------ ------ -----
1 WS-CAC-2500W 2331.00 55.50 OK OK on
2 WS-CAC-2500W 2331.00 55.50 OK OK on Pwr-Requested Pwr-Allocated Admin Oper Slot Card-Type Watts A @42V Watts A @42V State State
---- ------------------ ------- ------ ------- ------ ----- -----
1 WS-X6748-GE-TX 325.50 7.75 325.50 7.75 on on
2 WS-X6416-GBIC 118.02 2.81 118.02 2.81 on on
3 WS-X6316-GE-TX 216.30 5.15 216.30 5.15 on on
4 WS-X6748-GE-TX 325.50 7.75 325.50 7.75 on on
5 WS-SUP720-3BXL 328.44 7.82 328.44 7.82 on on
6 WS-X6348-RJ-45 328.44 7.82 328.44 7.82 on on
8 WS-X6348-RJ-45 100.38 2.39 100.38 2.39 on on
9 WS-X6066-SLB-S-K9 90.30 2.15 90.30 2.15 on on
Now the circuits for each PS are 20 amps but the available power is
55.5 amps? Is this because it is using only 42VDC rather than the total available (208)?
Maybe I'm showing a complete lack of understanding of electricity...