Cisco 4506 PoE Calculation

[Naveen Gupta]

We have a Cisco 4506 with Supervisor 6-E. We plan on replacing the existing 4 line cards with

WS-X4548-GB-RJ45V

48 port 10/100/1000 BaseT with IEEE 802.3af PoE

to support Cisco 7945G IP phones. We currently have 1000W power supply.

DC-SW1#sh power

Power                                             Fan      Inline

Supply  Model No          Type       Status       Sensor   Status

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

PS1     PWR-C45-1000AC    AC 1000W   good         good     n.a.

PS2     PWR-C45-1000AC    AC 1000W   good         good     n.a.

Power supplies needed by system    : 1

Power supplies currently available : 2

Power Summary                      Maximum

(in Watts)              Used     Available

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

System Power (12V)        430        1050

Inline Power (-50V)         0           0

Backplane Power (3.3V)      0          40

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

Total                     430        1090

What is the recommended power supply for this configuration?

Should we go with 110V or 220V is a discussion point? 

[Leo Laohoo]

Cisco Power Calculator

[Naveen Gupta]

Yes, I have used Cisco Power Calculator, it's recommending 6000W which I think is not right.

DC-SW#sh module
Chassis Type : WS-C4506

Power consumed by backplane : 0 Watts

Mod Ports Card Type                              Model              Serial No.
---+-----+--------------------------------------+------------------+-----------
1     6  Sup 6-E 10GE (X2), 1000BaseX (SFP)     WS-X45-SUP6-E      JAE1535038X
2     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE08522VVM
3    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  JAE162700ZK
4    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  JAE162203SK
5    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  JAE162203WI
6    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  JAE162700IZ

[Muhammad Thanveer]

Please find this

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps4324/product_data_sheet0900aecd801792b1.html

Maximum PoE per slot

1,500W

1,500W

1,500W

1,500W slots 1 and 2, 750W slots 3,4,7-10

Regards
Thanveer
"Everybody is genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is a stupid."