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Cisco Catalyst 4500 Series Switches

Cisco Catalyst 4500 Series Power-over-Ethernet Capabilities and Power Supplies

Power over Ethernet on the Cisco Catalyst 4500 E-Series Platform

The Cisco® Catalyst® 4500 E-Series platform offers line cards, power supplies, and accessories (including an AC power shelf) to support 15.4W per port simultaneously on every port in any fully loaded Cisco Catalyst 4500 E-Series switch. Although all references to "Power over Ethernet" (PoE), "inline power," and "voice" power supply and line cards are synonymous, there are only two versions: Cisco prestandard PoE and 802.3af-compliant PoE. Every Cisco Catalyst 4500 Series chassis and PoE power supply supports the IEEE 802.3af standard and the Cisco prestandard power implementation, helping ensure backward compatibility with existing Cisco powered devices.
All Cisco Catalyst 4500 Series PoE line cards can distinguish an IEEE or Cisco prestandard powered device from an unpowered network interface card (NIC) to help ensure that power is applied only when an appropriate device is connected. With a Cisco PoE network, administrators can depend on a robust network that is safe to deploy and simple to maintain.

PoE

PoE provides -48-VDC power over standard Category 5 unshielded twisted-pair (UTP) cable up to 100 meters when an IEEE 802.3 af-compliant or Cisco prestandard powered device is attached to the PoE line-card port. Instead of requiring wall power, attached devices such as IP phones, wireless base stations, video cameras, and other IEEE-compliant appliances can use power provided from the Cisco Catalyst 4500 Series PoE line cards. This capability gives network administrators centralized control over power and eliminates the need to install outlets in ceilings and other out-of-the-way places where a powered device can be installed. When a switch is connected to an uninterruptible-power-supply (UPS) system, network administrators can ensure that power outages will not affect network availability.

Deploying PoE on the Cisco Catalyst 4500 E-Series

When the Cisco Catalyst 4500 E-Series is properly configured, implementing PoE is easy when used with a Cisco powered device that supports Cisco Discovery Protocol. All Cisco Catalyst 4500 Series PoE line cards automatically detect an attached powered device the moment they are installed. Moreover, the Cisco Catalyst 4500 Series returns unused port power to the system power budget for use by other devices because it supports the IEEE802.3af optional power classifications.
The Cisco Catalyst 4500 E-Series offers internal power supplies and external power devices for multiple deployment scenarios, including small and large deployments in AC or DC environments for data-only configurations, and scalability up to 15.4W per port for PoE configurations.
The Cisco Catalyst 4510R-E (10 slot), 4507R-E (7 slot), 4506-E (6 slot), and 4503-E (3 slot) models as well as non-E-Series classic chassis share a common power-supply form factor. Each Cisco Catalyst 4500 Series chassis is designed for 1 + 1 power protection while meeting the needs of PoE demands. In addition to power resiliency, the Cisco Catalyst 4500 Series includes 1 + 1 supervisor-engine redundancy (Cisco Catalyst 4507R and 4510R models only) and software-based fault tolerance. Integrated resiliency in both hardware and software minimizes network downtime, helping ensure workforce productivity, profitability, and customer success.
Table 1 gives an overview of IEEE 802.3af power classifications.

Table 1. Overview of IEEE 802.3af Power Classifications (Measured at the Switch Port)

IEEE 802.3af Class

Power Available at the Switch Port

0

15.4W: Default class

1

4W

2

7W

3

15.4W

4

Future expansion

Cisco prestandard PoE

6.3W

Comparison Between Cisco Prestandard PoE and 802.3af-Compliant PoE

From a power perspective, there are several significant differences between the Cisco prestandard and 802.3af-compliant line cards. The differences are illustrated by comparing the total number of PoE devices supported by the Cisco prestandard inline power line card and the 802.3 af-compliant line cards (Table 2).

Table 2. Number of Powered Devices Supported when Using Power Supplies in a 1 + 1 Mode Using IEEE 802.3af-Compliant Line Cards

 

Standard 802.3af Class 1 (4W per port)

Standard 802.3af Class 2 (7W per port)

Standard 802.3af Classes 0 and 3 (15.4W per port)

Cisco Prestandard (6.3W perport)

1000 WAC

-

-

-

-

1400 WAC

-

-

-

-

1400 WDC

-

-

-

-

1400 WDC (triple input)

-

-

-

-

1300 WAC

144

101

45

113

2800 WAC

192

178

80

198

AC power shelf
(with 1400W-P)

240

318

144

353

2 AC power shelves

384

384

345

384

4200 WAC

384

384

213

384

Cisco Catalyst 4500 E-Series Power-Supply Options: AC and DC

The Cisco Catalyst 4500 E-Series offers a variety of power supplies and accessories to meet the diverse needs of enterprise and service provider customers. All available Cisco Catalyst 4500 Series power supplies can be used for data-only deployments, which typically require just a few hundred watts. For deployments that dictate support for PoE power, Cisco offers several options.
The Cisco Catalyst 4500 E-Series offers AC power with several internal supplies: 1000W (data only), 1400W (data only), 1300W (data and PoE), 2800W (data and PoE), and 4200W (data and PoE). When 5500W or less are required, the 4200W power supply can provide 5500W while protecting the chassis from a power or power-supply sub-unit failure. When more than 5500W of redundant data and PoE are required for a Cisco Catalyst 4500 Series chassis in an AC-powered environment, Cisco offers an external AC power shelf that houses two 2500-WAC power supplies. When two power shelves are combined, they can produce 7500W -- the remaining 2500W supply can be used for N + 1 protection.
The Cisco Catalyst 4500 E-Series has two DC power options -- one is optimized for data-only deployments in service provider central offices (part number PWR-C45-1400DC), and the other is used for high-power PoE deployments (PWR-C45-1400DC-P).

Cisco Catalyst 4500 E-Series External AC Power Shelf and 1400-WDC Power Supply with Integrated Power Entry Module

The Cisco Catalyst 4500 E-Series external AC power shelf must be used in conjunction with the 1400-WDC-P power supply. In addition to providing power for the chassis, fans, and non-PoE line cards, the 1400-WDC power supply contains a power entry module (PEM). The PEM is used to pass additional power through to the chassis backplane -- power demanded by the PoE line cards. The chassis power trace used for PoE is independent from the one used by the supervisor engine(s), fan tray, and backplane components. The 1400-WDC power supply can accept up to 7500 WDC for data and PoE applications. Up to 1400W can be dedicated for data (supervisor[s], fan tray, etc.), while the remaining power is passed through the PEM and is used for PoE.
When only one external AC power shelf is used (with two 2500-WAC power supplies), it provides the 1400-WDC power supply with 5000W of DC power. When two AC power shelves are strapped together, the Cisco Catalyst 4500 Series can provide up to 7500W of DC power (3 + 1 redundant).

Cisco Catalyst 4500 E-Series Service Provider DC Power Supply

The triple-input 1400-WDC power supply is optimized for service provider central-office deployments. By providing multiple inputs, the service provider DC power supply allows central-office technicians to customize the output power to meet their application needs. Many central-office deployments require only a fraction of the 1400W available in the service provider power supply. With low-current inputs, technicians can connect the supply to smaller fuses and breakers. The service provider power supply makes it possible to deploy a Cisco Catalyst 4503 with a single 15A circuit. Likewise, it is possible to deploy a fully populated Cisco Catalyst 4510R with one 15A and two 20A circuits rather than a single 60A connection, which often requires rack rewiring (Table 3).

Table 3. Triple-Input 1400-WDC Power-Supply Input Modes

Input Mode

Input No.

Input Configuration

Maximum Total Output Power

1

1

One 12.5A

412W

2

2 or 3

One 15A

495W

3

1, 2, or 3

One 12.5A and one 15A

908W

4

2 or 3

Two 15A

990W

5

1, 2, or 3

One 12.5A and two 15A

1400W

Cisco Catalyst 4500 E-Series Dual Input 4200w Power Supply

Combined Mode Power Resiliency is an extension of the traditional combined mode power-supply behavior; it is applicable only to the 4200W power supply. Each 4200W power supply contains two smaller power supplies (called sub-units). In Combined Mode Power Resiliency the system relies only on power from three out of four power-supply sub-units. When using 200 VAC, this feature helps ensure that 5500W of power are available while the switch is protected against a single input power failure or sub-unit component failure. When using four 110 VAC, Combined Mode Power Resiliency provides up to 2728W (Tables 4 and 5).

Table 4. Dual-Input 4200 WAC Power-Supply Input Mode (Single Power Supply)

PS1-1

PS1-2

Total Output Power

110V

Off

1050W

110V

110V

2100W

220V

Off

2100W

220V

220V

4200W

Table 5. Total Output Power in Combined Mode Power Resiliency

PS1-1

PS1-2

PS2-1

PS2-2

Total Output Power

110V

110V

110V

110V (hot standby)

2728W

220V

220V

220V

110V (hot standby)

5500W

Cisco Catalyst 4500 E-Series Power Supplies

In any deployment scenario, whether AC or DC, the Cisco Catalyst 4500 Series has the power supplies and external power devices to meet customers' power needs for data, voice, and video applications (Figure 1).

Figure 1. Cisco Catalyst 4500 Series Power Supplies

Features

For information on Catalyst 4500 E-Series power-supply specifications, see Tables 6 through 9.

Table 6. Cisco Catalyst 4500 E-Series Power-Supply Specifications (Data-Only Power Supplies)

Power Supply

1000 WAC (PWR-C45-1000AC)

1400 WAC (PWR-C45-1400AC)

1400W Triple Input DC (PWR-C45-1400DC)

Minimum Cisco IOS® Software Release required

12.1(12c)EW

12.2(18)EW

12.2(25)EW

Minimum Cisco Catalyst Operating System Software required

7.4(1)

-

-

Integrated PoE

No (data only)

No (data only)

No (data only)

IEEE 802.3af compliant

No

No

No

Input current (rated)

12A at 100 VAC

5A at 240 VAC

16A at 100 VAC

7A at 240 VAC

Two -48 VDC at 15A

One -48 VDC at 12.5A

Output current (data)

12V at 83.4A

3.3V at 12.2A

12V at 113.4A

3.3V at 12.2A

12V at 114W

3.3V at 12.5W

Output current (PoE)

-

-

-

Output power redundant mode (data)

1000W + 40W

1360W + 40W

1368W + 40W

Output power redundant mode (PoE)

-

-

-

Output power combined mode (data)

1667W

-

-

Output power combined mode (PoE)

-

-

-

Heat dissipation

943 BTU/hr

1048 BTU/hr

1048 BTU/hr

Holdup time

20 ms

20 ms

4 ms

Table 7. Cisco Catalyst 4500 E-Series Power-Supply Specifications (Data and Voice)

 

1300 WACV

(PWR C45-1300ACV)

2800 WACV (PWR-C45-2800ACV)

1400 WDC-P (PWR-C45-1400DC-P)

4200 WACV PWR-C45-4200ACV)

2500W

(PWR-4502)

Minimum Cisco IOS® Software Release required

12.1(12c)EW

12.1(12c)EW

12.1(13)EW

12.2

12.1(13)EW

Minimum Cisco Catalyst Operating System Software required

7.4(1)

7.4(1)

7.5(1)

-

7.5(1)

Integrated PoE

Yes (up to 800W)

Yes (up to 1400W)

Up to 7500W (minus power consumed for data) when connected directly to DC power plant or 2 external AC power shelves

Yes (up to 3855W)

2500W per power supply

IEEE 802.3af compliant

Yes

Yes

Yes

Yes

Yes

Input current (rated)

16A at 100 VAC

7A at 240 VAC

16A at 200 VAC

Data: 31A at -60 VDC

Inline: 180A at

-48VDC

Two 12A at 100 VAC or

Two 12A at 200 VAC

15A at 200 VAC

Output current (data)

12V at 84.7A

3.3V at 12.5A

12V at 113.3A

3.3V at 12.1A

12V at 120A

3.3V at 10A

12V at 115.3A

3.3V at 12.5A

-52 VDC at 50A (total output per supply)

Output current (PoE)

-50V at 16.7A

-50V at 28A

-48 or -60 VDC at 140A

-50V at 77.1A (200V)

-50V at 38A (100V)

-52 VDC at 50A (total output per supply)

Output power redundant mode (data)

1000W + 40W

1360W + 40W

1367W + 40W

1383W + 40W

Up to 1400W (through DC supply)

Output power redundant mode (PoE)

800W maximum per power supply

1400W maximum per power supply

Up to 7500W (minus the power consumed for data)

3700W (220V)

1850W (110V)

2500W per supply (minus the power consumed for data)

Output power combined mode (data)

1360W

1360W

1360W

1360W

1360W

Output power combined mode (PoE)

1333W (maximum)

2333W

7280W

6800W (220V)

3100W (110V)

-

Heat dissipation

1568 BTU/hour

2387 BTU/hr

Data only: 1591 BTU/hr

Data and voice: 2905 BTU/hr

3580 BTU/hr

1210 BTU/hr per power supply

Holdup time

20 ms

20 ms

4 ms

20 ms

20 ms

Number of 802.3af class 2 powered devices supported

102

179

384

384 (200V)

241 (100V)

318 (per unit)

Number of 802.3af classes 0 and 3 powered devices supported

46

80

384

213 (200V)

109 (100V)

144 (per unit)

Table 8. Specifications of Cisco Catalyst 4500 E-Series

Feature

Description

Power-supply indicators and interfaces

• Fan cooling: Integrated in hot-inserting or hot-extraction unit
• Good: Green
• Fail: Red
• Support for Simple Network Management Protocol (SNMP) MIB

Environmental conditions

• Operating temperature: 32 to 104ºF (0 to 40ºC)
• Storage temperature: -40 to 167ºF (-40 to 75ºC)
• Relative humidity: 10 to 90 percent, noncondensing
• Operating altitude: -60 to 2000m

Regulatory Standards Compliance

Safety

• UL 60950
• CAN/CSA-C22.2 No. 60950
• EN 60950
• IEC 60950
• TS 001
• AS/NZS 3260

Electromagnetic Compatibility (EMC)

• FCC Part 15 (CFR 47) Class A
• ICES-003 Class A
• EN55022 Class A
• CISPR22 Class A
• AS/NZS 3548 Class A
• VCCI Class A
• EN 55022
• EN 55024
• EN 61000-6-1
• EN 50082-1
• EN 61000-3-2
• EN 61000-3-3
• ETS 300 386

Industry EMC, safety, and environmental standards

• GR-63-Core Network Equipment Building Standards (NEBS) Level 3
• GR-1089-Core Level 3
• ETS 300 019 Storage Class 1.1
• ETS 300 019 Transportation Class 2.3 (pending)
• ETS 300 019 Stationary Use Class 3.1
• ETS 300 386

Warranty

The warranty for the Cisco Catalyst 4500 Series is 90 days; it includes hardware replacement with a 10-day turnaround from return materials authorization (RMA).

Service and support