WS-C6509-E Power input question

Stephen Maurice · ‎02-06-2014

Hi all,

One of the PSU's on a 6509-E is having a very strange issue where only 1 of the 2 power receptacles on PSU#2 works, even after swapping the PSU with a spare. I am trying to verify the power input voltage, and I'm not sure if it is possible to do this via CLI. The following "show power" output appears to show the DC power stats, but not the AC power input. Is there anything else I can do besides getting an electrician involved to look at the circuit?

#show power

system power redundancy mode = redundant

system power total = 2671.20 Watts (63.60 Amps @ 42V)

system power used = 1247.40 Watts (29.70 Amps @ 42V)

system power available = 1423.80 Watts (33.90 Amps @ 42V)

Power-Capacity PS-Fan Output Oper

PS Type Watts A @42V Status Status State

---- ------------------ ------- ------ ------ ------ -----

1 WS-CAC-6000W 2671.20 63.60 OK OK on

2 WS-CAC-6000W 2671.20 63.60 OK OK on

Pwr-Allocated Oper

Fan Type Watts A @42V State

---- ------------------ ------- ------ -----

1 WS-C6509-E-FAN 150.36 3.58 OK

Pwr-Requested Pwr-Allocated Admin Oper

Slot Card-Type Watts A @42V Watts A @42V State State

---- ------------------ ------- ------ ------- ------ ----- -----

1 WS-X6724-SFP 207.06 4.93 207.06 4.93 on on

2 WS-X6748-GE-TX 325.50 7.75 325.50 7.75 on on

5 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on

6 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on

#show power

system power redundancy mode = redundant

system power total = 2671.20 Watts (63.60 Amps @ 42V)

system power used = 1247.40 Watts (29.70 Amps @ 42V)

system power available = 1423.80 Watts (33.90 Amps @ 42V)

Power-Capacity PS-Fan Output Oper

PS Type Watts A @42V Status Status State

---- ------------------ ------- ------ ------ ------ -----

1 WS-CAC-6000W 2671.20 63.60 OK OK on

2 WS-CAC-6000W 2671.20 63.60 OK OK on

Pwr-Allocated Oper

Fan Type Watts A @42V State

---- ------------------ ------- ------ -----

1 WS-C6509-E-FAN 150.36 3.58 OK

Pwr-Requested Pwr-Allocated Admin Oper

Slot Card-Type Watts A @42V Watts A @42V State State

---- ------------------ ------- ------ ------- ------ ----- -----

1 WS-X6724-SFP 207.06 4.93 207.06 4.93 on on

2 WS-X6748-GE-TX 325.50 7.75 325.50 7.75 on on

5 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on

6 WS-SUP720-3B 282.24 6.72 282.24 6.72 on on

glen.grant · ‎02-06-2014

It looks like you are running 120V dual inputs. If you notice system power total it says 2671 , a 6000 watt power supply will only supply 2900 watts max with 120V assuming its 120v and not something lower . If you were running 208-220V it would say close to 6000 watts. Here is some info.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/hardware/Chassis_Installation/Cat6500/0apwsply.html#wp1026788

Stephen Maurice · ‎02-06-2014

Hi Glen,

Thanks for the info, there is only 1 power cord connected to each power supply. On the #2 power supply, there was an "output fail" alarm so we swapped out the power supply, but the replacement power supply had the same error. We moved the power cable from the 1st receptacle to the 2nd receptacle and all is well. We swapped in the original power supply and plugged the AC cord into the 2nd receptacle and that one is fine too. Very strange. That's why I was wondering if there was any way to verify it really is a 230V circuit.

-Stephen

glen.grant · ‎02-07-2014

Well if you only have a single input on them it would have to be 230.

Note The 6000 W power supply will not power up if you have only one power cord plugged into either INPUT 1 or INPUT 2 and source AC is low-line (120 VAC nominal).