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How To Select A Power Supply For Cisco Catalyst 4500
E-Series Switches
Getting Started
Questions to ask when selecting a power supply.
Is Power Over Ethernet (Poe) Required?
If PoE is not required, select the 1000W supply for the
Cisco
Catalyst
4503, 4506, and 4507R Switch chassis.
®
®
Select the 1400W supply for Cisco Catalyst 4510R
Switch chassis
•
PoE supplies: 1300WACV, 2800WACV, 4200WACV,
1400WDC-P
How Many and What Type of Powered Devices Do
You Require?
Maximum class 2/3 powered devices are supported.
Table 1.
Maximum Class 2/3 Powered Devices Supported
133W
2800W
4200W
4503*
101/45
178/80
470/213
4506*
100/45
178/80
469/213
4507R*
77/35
178/80
419/190
4510R*
N/A
178/80
419/190
*All configurations include a Cisco Catalyst 4000/4500 Supervisor
Engine V with all line-card slots filled with 48-port PoE cards.
Figure 1.
4200W AC Power Supply
1000WAC: Data-only AC power supply designed for
Cisco Catalyst 4503, 4506, and 4507R chassis
1300WACV: Data and limited PoE up to 46 class 3
devices; designed for small IP telephony and wireless
deployments
1400WAC: Data-only AC supply designed for Cisco
Catalyst 4510R chassis
2800WACV: Data and PoE up to 80 class 3 devices;
designed for medium-sized PoE deployments
1400WDC-P: Data and large-scale PoE or DC PoE
deployments; designed to be used with -48VDC power
sources such as the power shelf or an AC-powered
DC UPS
1400WDC: Data-only DC supply; designed for service
providers with low-current circuits
4200WACV: Data and large-scale PoE deployments;
designed for large PoE deployments
Quick Power Calculations
1400WDC-P
Calculating the maximum power required is simple.
Your total system power requirement comes from two
All ports
sources: data and PoE plus some efficiency loss. The
All ports
following chart gives you baseline power requirement
All ports
numbers for data power components on the Cisco
All ports
Catalyst 4500E.
Table 2.
Max Data Power Required
Chassis
4503
4506
4507R
4510R
4503-E
4506-E
4507R-E
4510R-E
Supervisor
Sup II Plus
Sup II Plus TS
Data power
Heat in closet
(Watts)
(BTU/hr)
40
182
60
273
90
409
120
546
60
182
120
273
135
409
200
546
109
500
362
705
Sup IV
144
Sup V
150
Sup V-10GE
150
Sup 6-E
260
Line Cards
10/100
65
10/100 PoE
65
10/100/1000
60
10/100/1000 PoE
60
48 Port Pluggable
84
10/100 Fibre
120
E-Series
90
10/100/1000 PoE
E-Series 10GbE
50
PoE Power Supply
Data Watts
1300WACV*
1000
2800WACV
1400
4200WACV*
1400
2500W Shelf
N/A
*Maximum power supply output is equal to 1300W and 4200W,
respectively.
The Formulas
Data Power Required = Sum Chassis Parts
PoE Power Required = Sum PoE device Watts / 89%
efficiency
Required (Data Power Required + PoE Power Required) <
Power Supply Max Select the power supply that has the
required amount of PoE Watts
Example
Cisco Catalyst 4503 with a Supervisor Engine IV and 2x
48 port cards requiring all class 3 devices.
At-A-Glance
660
683
683
938
296
296
273
273
387
546
307
170
PoE Watts
Heat
Output
(BTU/Hr)
800
1568
1400
2387
3700
3580
2500