Cisco Aironet Power Over Ethernet Application Note

Cisco Aironet Power Over Ethernet Application Note

This document describes inline power options and power requirements for Cisco Aironet access points and bridges, and provides implementation guidelines for using Cisco and non-Cisco inline power products. This document contains these sections:

• Cisco Inline Power Support, page 2

• IEEE 802.3af Power Support, page 3

• Testing Scope and Results, page 3

• Power Requirements for Access Points and Bridges, page 7

• Power Options for Cisco Aironet Access Points and Bridges, page 10

• Non-Cisco Power Options, page 11

Corporate Headquarters:

Copyright © 2004 Cisco Systems, Inc. All rights reserved.

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Cisco Inline Power Support

Cisco Inline Power SupportCisco launched inline Power over Ethernet (PoE) in March, 2000 to power Cisco Aironet access points. Currently, Cisco has shipped more than 18 million inline power capable ports on the Catalyst 3500, 4500, and 6500 families of Ethernet switches. PoE was quickly recognized as a desirable feature for networked products and the IEEE began standardization efforts to enable multi-vendor interoperability. Devices that use PoE include access points, IP phones, and video cameras. With the recent ratification of the IEEE 802.3af PoE standard, Cisco supports both IEEE 802.3af and prestandard PoE powered devices. Cisco has also enhanced prestandard power management using Cisco Discovery Protocol (CDP) negotiation to include the Cisco IEEE 802.3af compliant devices to further optimize inline power management.

The data in this section is based on powering single- and dual-band Cisco Aironet 1200 series access points with 802.11b, 802.11a, and 802.11g radios. Dual-band access points require more power than single-band access points. Table 1 contains an inline power matrix that illustrates the power capabilities of several prestandard Cisco inline power sources.

Note Table 1 includes only the Cisco Aironet 1200 Series Access Point because of its dual-band operation. There are no known problems with powering single band access points.

Table 1 Cisco Inline Power Matrix

Cisco Power Source Cisco Hardware Cisco SoftwareWatts per Port

Cisco Aironet 1200 Series Access Point

2.4-GHz Radio

5-Ghz Radio

2.4- and 5-Ghz Radios

Power injector AIR-PSINJSYS1200=, AIR-PWRINJ2, AIR-PWRINJ-FIB

– 15 Yes Yes Yes

Patch panel WS-PWR-PANEL – 6 Yes No1

1. Requires an access point power injector.

No1

Catalyst 6500 WS-X6148-RJ45V, WS-X6348-RJ-45, WS-X6348-RJ45V

Cisco CatOS 5.5(1) 11 Yes Yes Yes

Catalyst 4500 WS-X4148-RJ45V Cisco CatOS 6.1(1) 6.3 Yes No1 No1

Catalyst 4000 WS-X4148-RJ45V Cisco CatOS 6.1(1) 6.3 Yes No1 No1

Catalyst 3750 N/A (fixed config) (unknown) 15.4 Yes Yes Yes

Catalyst 3550-PWR N/A (fixed config) Cisco IOS 12.1.12c.EA1

15.4 Yes Yes Yes

Catalyst 3524-PWR-XL

N/A (fixed config) Cisco IOS 12.0(5)WC5a

6 Yes No1 No1

Cisco 2600 NM-16ESW-PWR Cisco IOS 12.2(2)xt TBD TBD TBD TBD

Cisco 3600 NM-16ESW-PWR Cisco IOS 12.2(2)xt TBD TBD TBD TBD

Cisco 3700 NM-16ESW-PWR, NMD-36-ESW-PWR

Cisco IOS 12.2(8)T TBD Yes TBD TBD

2Cisco Aironet Power Over Ethernet Application Note

OL-6862-01

IEEE 802.3af Power Support

IEEE 802.3af Power SupportCisco is a contributing member of the IEEE 802.3af committee and strives to continue the evolution of technology standards by delivering IEEE 802.3af-compliant PoE power sources, such as the Cisco Catalyst 6500, 4500, 3560, and 3750 switches. For investment protection, all Cisco 802.3af compliant PoE products also support the pre-standard Cisco PoE implementation for compatibility with the installed base of Cisco powered end-devices, such as IP telephones and wireless access points.

For more information is available at this URL:

http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/networking_solutions_package.html

Testing Scope and ResultsTesting was performed by Technical Marketing engineers, hardware engineers, and System Test engineers to determine the inline power capabilities of several Cisco products. The following Cisco products were tested:

• Cisco Aironet 1200 series access points (with 2.4-GHz radio, 5-GHz radio, and dual-band radios)

• Cisco Aironet 1120 and 1121 access points (with 2.4-GHz radio).

• Catalyst 6000

• Catalyst 4000

• Catalyst 4500

• Catalyst 3550

• Catalyst 3750

• Catalyst 3500 XL

• Cisco 2600 series router



The scope of testing included: basic verification of inline power provisioning, testing for dissimilarities in horizontal and vertical scale on waveforms, and switch ASIC/PHY interactions and functionality. The Catalyst 6500, 4000m and 3500 XL switches were tested for transient, continuous, and fault responses.

Table 2 Power Options with Cisco Catalyst Switches and the EtherSwitch Modul

Power Catalyst 6500 Catalyst 4500 Catalyst 3750 Catalyst 3560 Catalyst 3550

Cisco EtherSwitch Module

PoE configuration options—ports and data rates (Mbps)

96-port 10/100,48-port 10/100 or 10/100/1000

48-port 10/100 or 10/100/1000

48-port 10/100, 24-port 10/100

48-port 10/100, 24-port 10/100

24-port 10/100 36-port 10/100, 16-port 10/100

IEEE 802.3af compliant

Yes Yes Yes Yes No No

Cisco pre-standard PoE support

Yes Yes Yes Yes Yes Yes


OL-6862-01

http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/networking_solutions_package.html

Testing Scope and Results

The Catalyst 3550 was tested for the following: switch management on new card type and port identity, SNMP recognition on new card type and port identity, LED operation, post reporting, access point power management, SBC alarms, CDP alarms, and hot-swap support.

The following sections contain inline power support details and test results for each Cisco product.

Catalyst 6000For inline power support, Cisco CatOS 5.5(1) or later is recommended. The Catalyst 6000 switch provides 48-volt DC inline power over standard Category 5 unshielded twisted-pair (UTP) cable up to 100 meters. The Catalyst 6500 supports inline power via several line cards including WS-X6348-RJ-45, WS-X6348-RJ45V, WS-X6148-RJ45V, WS-X6148-GE-TX, and the WS-X6548-GE-TX. The maximum wattage per port supported by this product is typically 7 W, but you might see up to 12.5 W per port because of different types of over current protection being used. These line cards are field upgradable to support IEEE 802.3af.

When the maximum wattage per port is 7 W, dual-band access points are not supported because of their extra power requirement.

The WS-X6148-GE-TX and the WS-X6548-GE-TX cards both support Cisco inline power (up to 11 W per port), but they are not recommended for dual-band access points.

The voice power module can provide a total of 386 W, which is sufficient to power 48 phones simultaneously. Cisco IP phones use approximately 6.5 W each, but their design does not limit the amount of power that can be drawn from a single port.

To support the demand for IP phone inline power, Cisco has developed a 2500-watt power supply (WS-CAC-2500W, WS-CDC-2500W) for the Catalyst 6000 switch family. The WS-CAC-2500W power supply provides 1300 W when connected to a 110 VAC source and 2500 W when connected to a 220 VAC source. The WS-CDC-2500W power supply always provides 2500 W.

Internal testing and field use does not show any inline power issues with this chassis, which includes all shipping line cards that support inline power— 48-port RJ-45 and Voice daughter boards (WS-X6348-RJ-45 and WS-X6348-RJ45V) for base Indus and Hydra modules.

For additional information, refer to these URL:

Inline Power Card Data Sheet:

http://wwwin.cisco.com/cmc/cc/pd/si/casi/ca6000/prodlit/c6ipe_ds.htm

Power Supply Specifications:


Inline power configuration syntax:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_7_3/confg_gd/voicecfg.htm#998704


OL-6862-01





Catalyst 4000/4500For inline power support, Cisco CatOS 6.1(1) is recommended. The Catalyst 4000 family of switches can currently provide 6.3 W per port with the WS-X4148-RJ-45V line card. However, the Catalyst 4006 provides inline power directly from the Fast Ethernet module and only can support 400 W per line card. A Catalyst 4500 line card supports 15.4 W per port for all ports. The Catalyst 4003 uses the Catalyst Inline Power Patch Panel to provide inline power.

To support the new demand for inline IP phone power, Cisco developed an auxiliary DC power shelf that supplies the Catalyst 4006 with –48 VDC required to power IP phones. The Catalyst 4000 can only provide 7 W from an inline power port.

For additional information, refer to these URL:

http://wwwin.cisco.com/cmc/cc/pd/si/casi/ca4000/prodlit/c4k2_ds.htm

http://www.cisco.com/en/US/products/hw/switches/ps4324/

Catalyst 3750The Catalyst 3750 can provide 15.4 W per port for all 24 ports. The Catalyst 3750 is the first Catalyst switch to be IEEE 802.3af compliant and supports all power classes of inline power devices. Power class details are shown below:

• Class 1 requires 3 W of power



• Class 4 is reserved

Catalyst 3550-24-PWRThe Catalyst 3550-24-PWR provides 15.4 W per port at the switch output. The Catalyst 3550-24-PWR supports the Cisco proprietary inline power implementation. The inline power feature is –48 VDC power provided over standard Category 5 UTP cabling up to 100 meters.

The inline power controller is a quad controller (group of 4 ports) and supplies –48 V to each of the ports individually. There are 6 controllers per system. Internal testing revealed no known power issues with the 1200 series access point.

For additional information, refer to this URL:

Inline Power Switch Data Sheet:



OL-6862-01


http://wwwin.cisco.com/cmc/cc/pd/si/casi/ca4000/prodlit/c4k2_ds.htm




Catalyst 3524-PWR-XLFor inline power support, Cisco IOS Release 12.0(5) or later is recommended for this switch. The Catalyst 3524-PWR-XL switch (WS-C3524-PWR-XL-EN) supports Cisco only prestandard inline power and provides a maximum of 6 W per port for 24 ports. The power supply provides 144 W, which allows more power to be provisioned for individual ports provided that all ports are not populated.

Internal testing and field use shows no known inline power issues with this switch. This product has reached End of Sale and its replacement is the Catalyst 3550-PWR.

For additional information, refer to these URLs:

Inline Power Switch Data Sheet:

http://www.cisco.com/en/US/products/hw/switches/ps637/ps641/


http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35wc5/scg/swports.htm#xtocid33

Cisco 2600, 3600, and 3700 Series RoutersThese inline power capable Cisco routers provide 15 W per port, but not on all ports simultaneously. The 16-port module can supply 10 W on every port or 15 W per port until the 160 W software allocation is reached. The 36-port module operates like the 16-port module, but this module allocates 360 W. The Cisco 3745 supports two power supplies, but the Cisco 3725 only supports a single power supply. The routers use Cisco CDP negotiation with powered devices for power allocation.

The Cisco 2600 and 3600 series routers require attachment of an external power supply to the daughter card connector on the NM-16ESW-PWR four-port power chassis, which provides external power for the PWR-CHASSIS-360W. Cisco IOS Release 12.2(2)xt or later is recommended for the Cisco 2600 and 3600 routers.

The PWR-PS-360W is a single 360-W power supply for the Cisco EtherSwitch Network Module products. The PPWR-PSCHASSIS is a power supply chassis for the Cisco 48-V (360-W) power supply.

The Cisco 3700 also uses the NM-16ESW-PWR power supply, but the external power supply is connected internally based on the internal architecture of the daughter card. The Cisco 3700 also supports the NMD-36-ESW-PWR power supply. Cisco IOS Release 12.2(8)T or later is recommended for the Cisco 2700 router.

For additional information, refer to these URLs:

Etherswitch Inline Power Data Sheet:

http://wwwin.cisco.com/cmc/cc/pd/rt/2600/prodlit/2600x_ds.htm


http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft//122limit/122x/122xt/122xt_2/ft1636nm.htm#xtocid90


OL-6862-01


http://www.cisco.com/en/US/products/hw/switches/ps637/ps641

http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35wc5/scg/swports.htm#xtocid33

http://wwwin.cisco.com/cmc/cc/pd/rt/2600/prodlit/2600x_ds.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft//122limit/122x/122xt/122xt_2/ft1636nm.htm#xtocid90

Power Requirements for Access Points and Bridges

Power Requirements for Access Points and BridgesAccess point or powered device (PD) input power is measured with the access point connected to the switch without cable resistance. The switch power or Power Source Equipment (PSE) power is measured using the resistance of 100 m of Category 5 (Cat 5) Ethernet cable and is generally the maximum power draw from the switch.

Table 3 contains power values that were calculated using the power equation shown below:

Note The power equation uses these terms: PowerPSE = power from the switch, V = Voltage, R = cable resistance in ohms, PowerPD = power consumed by the access point in watts.

Note The worst-case voltage was determined to be 40 V. The resistance of the Cat 5 cabling was determined to be 10 Ohms.

PowerPSE V2 V4 4 R V2 PowerPD⋅ ⋅ ⋅( )––2 R⋅

------------------------------------------------------------------------------------------------=

Table 3 Access Point Input Power and Power Source Equipment Output Power

Cisco Aironet Access PointsAccess Point (PD)Input Power (W)

Power Source Equipment (PSE)Output Power (W)

350 series 5.75 6.00

1120 (with 802.11b radio) 4.75 4.90

1121 (with 802.11g radio) 4.75 4.90

1130AG series (with 802.11g and 802.11a radios) 11.10 12.20

1200 series (without 802.11a radio) 4.30 4.42

1200 series (with 802.11b radio) 6.00 6.24

1200 series (with 802.11g radio) 6.20 6.46

1200 series (with 802.11a radio (RM20A) 8.00 8.50

1200 series (with 802.11a radio (RM21A) 9.50 10.14

1200 series (with 802.11a (RM20A) and 802.11b radios) 10.80 11.64

1200 series (with 802.11a (RM20A) and 802.11g radios) 10.20 10.95

1200 series (with 802.11a (RM21A) and 802.11b radios) 11.20 12.12

1200 series (with 802.11a (RM21A) and 802.11g radios) 11.40 12.36


OL-6862-01

Cisco PoE and Cisco Intelligent Power Management

Cisco PoE and Cisco Intelligent Power Management Cisco recently introduced IEEE 802.3af compliant switch products that also support Cisco pre-standard PoE. The Cisco Catalyst Intelligent switches support Cisco Intelligent Power Management (Cisco IPM). Cisco IPM provides power management capabilities beyond the IEEE802.3af Power Classification feature to enable granular, optimized, and scalable power delivery for more efficient power management and prioritization of power delivery. Cisco IPM is currently supported by a firmware upgrade in the WS-C3550, WS-C3560, and WS-C3570 platforms (you should refer to Cisco CCO for available upgrades). Table 4 contains a partial list of Cisco PoE capable devices and the supported access points.

Table 4 Access Point Compatibility Matrix

Cisco Platforms and Daughter Cards Cisco IPM Support

Cisco Aironet Access Points

1130AG Series with 2 Radios

1200 Series with 2 Radios

All Access Points with 1 Radio

WS-C3550 Yes in Cisco IOS Release 12.2(25)SE

Yes Yes Yes


Yes Yes Yes


Yes Yes Yes

2610 (2610XM) Yes Yes Yes Yes





2691 Yes Yes Yes Yes




3631-TELCO Yes Yes Yes Yes








CAT-4K (WS-X4224-RJ45V) Yes in Cisco IOS Release 12.2(18)EW

Yes Yes Yes

CAT-4K (WS-X4524-GB-RJ45V) Yes in Cisco IOS Release 12.2(18)EW

Yes Yes Yes


OL-6862-01

Cisco PoE and Cisco Intelligent Power Management


Yes Yes Yes

CAT-4K (WS-X4506-GB-T) Yes in Cisco IOS Release 12.2(18)EW

Yes Yes Yes


Yes Yes Yes


Yes Yes Yes

CAT-4K (WS-X4013+TS) Yes in Cisco IOS Release 12.2(18)EW

Yes Yes Yes

CAT-4K (WS-X4548-GB-RV45V) Yes in Cisco IOS Release 12.2(18)EW

Yes Yes Yes

CAT-6K (WS-F6K-GE48-AF) Yes in CAT OS Release 8.2.1

Yes Yes Yes

CAT-6K (WS-F6K-VPWR-GE) Yes in CAT OS Release 8.2.1

Yes Yes Yes

CAT-6K (WS-F6K-FE48-AF) Yes in CAT OS Release 8.2.1

Yes Yes Yes

CAT-6K (WS-F6K-FE48X2-AF) Yes Yes Yes Yes

WS-X4148-RJ45V No No No Yes1

CAT-3524-PER-XL No No No Yes1

WS-PWR-PANEL No No No Yes1

WS-X6148-RJ45V No No No Yes

WS-X6348-RJ-45 No No No Yes

WS-X648-RJ45V No No No Yes

1. Only with 802.11b radio.

Table 4 Access Point Compatibility Matrix (Continued)

Cisco Platforms and Daughter Cards Cisco IPM Support

Cisco Aironet Access Points

1130AG Series with 2 Radios

1200 Series with 2 Radios

All Access Points with 1 Radio


OL-6862-01

Power Options for Cisco Aironet Access Points and Bridges

Power Options for Cisco Aironet Access Points and BridgesTable 5 lists the power options supported by Cisco Aironet access points and bridges.

Cisco Aironet Power InjectorsCisco Aironet power injectors are used to supply in-line PoE power to the access points. Table 6 lists the power injectors used with various Cisco Aironet access points.

Table 5 Power Options

Cisco Aironet Access Points and Bridges

Cisco Prestandard PoE IEEE 802.3af PoE

IEEE 802.3af Compatible Using PowerDsine Splitter

350 series Yes No Yes

1120 and 1121 Yes No Yes

1130AG series Yes Yes Not needed

1200 series Yes No Yes

1300 series Yes1

1. Uses coax cables rather than Cat5 Ethernet cables.

No Yes with AIR-PWRINJ-BLR2T and PowerDsine PD-AS-601/18

1400 series Yes1 No No

Table 6 Cisco Aironet Power Injectors for Access Points

Cisco Aironet Power Injectors Cisco Aironet Access Points Supported Power Injector Power Supply

AIR-PWRINJ (EOL)1

1. End of Life—these products are no longer sold and may not be supported. For additional information, refer to http://www.cisco.com/en/US/products/hw/wireless/products_end-of-life_policy.html.

350 series only Attached to the power injector

AIR-PSINJSYS1200 (EOL)1 1120 and 1121350 and 1200 series

AIR-PWRINJ2 (EOL)1 1120 and 1121350 and 1200 series

Uses the access point power supply module

AIR-PWRINJ3 1120 and 1121 350, 1130AG, and 1200 series

AIR-PWRINJ-FIB (fiber optic injector)

1120 and 1121350, 1130AG, and 1200 series


OL-6862-01

http://www.cisco.com/en/US/products/hw/wireless/products_end-of-life_policy.html

Non-Cisco Power Options

Power Injectors for Outdoor Access Points and Bridges The Cisco Aironet power injectors for the outdoor access points and bridges supply power over two RG-6 coaxial cables.

Note The transportation power injector should be used when 12 volt (car battery) power is provided or when the injector needs to be powered using an IEEE 802.3af power splitter from PowerDsine because the inrush current is less.


PowerDsine Midspan ProductsMost Cisco Aironet access points use inline PoE from power injectors or Cisco powered EtherSwitches, but the Cisco Aironet 350, 1100, and 1200 series access points do not directly support IEEE 802.3af power sources. These access points were designed before the IEEE 802.3af power standard was ratified and must use third party products such as PowerDsine to support IEEE 802.3af power sources.

PowerDsine offers midspan power products that allow customers to deploy a combination of IEEE 802.3af powered devices and non-IEEE 802.3af powered devices such as the Cisco Aironet 1120 and 1121 access points and the Cisco Aironet 350 and 1200 series access points.

PowerDsine’s 6006 and 6012 Inline Power Midspan (residing between the Ethernet switch and the access point) supplies power to the access point using unused pairs of wires within the Category 5 cable. This is similar to the capacitive power detection method used by Cisco Aironet power injectors, but the power polarity is reversed. The PowerDsine products apply a positive voltage on pairs 4 and 5 and a negative voltage on pairs 7 and 8. Cisco Aironet power injectors apply a positive voltage on pairs 7 and 8 and a negative voltage on pairs 4 and 5.

PowerDsine 6006 and 6012 products comply with the IEEE 802.3af standard, but also supports a second detection method. These products first attempt to detect powered devices using the IEEE 802.3af resistive power detection method, then if a powered device is not detected, they switch to capacitive power detection mode. When using capacitive power detection, these products can successfully power Cisco access points provided the power pins are switched to the correct polarity. The polarity reversal is accomplished using a PowerDsine adapter cable referred to as a prestandard passive splitter.

Table 7 Power Injectors for Outdoor Access Points and Bridges

Cisco Aironet Power Injectors Cisco Aironet Outdoor Access Points and Bridges Supported Required Power Supply

AIR-PWRINJ-BLR2 1300 series 48 VDC

AIR-PWRINJ-BLR2T1

1. The transportation power injector is used for vehicles such as automobiles, trucks, and buses.

1300 series 12–40 VDC

AIR-PWRINJ-BLR 1400 series 48 VDC


OL-6862-01


Figure 1 shows the PowerDsine Midspan hub and the prestandard passive splitter.

Figure 1 PowerDsine Midspan Hub

Note When using the PowerDsine adapter cable (prestandard passive splitter), PowerDsine recommends that this adapter cable is installed near the access point. The adapter cable (part number PD-PS-401/Cisco) is available through CDW. For additional information, refer to this URL:

http://www.cdw.com/shop/products/default.aspx?EDC=519479

Table 8 lists the PowerDsine passive splitters and the Cisco Aironet access points supported.

For additional information on PowerDsine products, refer to these URLs:

http://www.powerdsine.com/Products/Midspan/PD_6000.asp


Table 8 Alternate Third Party Passive Splitters Used with PowerDsine Midspan Products

PowerDsine Passive Splitters Products Supported

PD-PS-401/Cisco

Cisco Aironet 1120 and 1121 access pointsCisco Aironet 350 and 1200 series access points

PD-PS-401-5/CSCS (older part number)

PD-6994-300 (older part number)


OL-6862-01






Testing MethodologyThe PowerDsine 6006 Mid-Span unit was connected to a Cisco 2900 XL switch (see Figure 1) and six Cisco 1100 series access points (using PowerDsine PD-6995-300 PoE adapters) were connected to the network. The test setup used mixed lengths of Category 5 Ethernet cable and two 100m cables (maximum distance supported by PowerDsine). All six access points ran without problems.

The same test was also performed using six Cisco 1200 series access points. The 1200 series access points were powered using the PowerDsine PD-PS-401/Cisco prestandard passive splitter. The 1200 series dual-band access points (with two radios) require approximately 11 W per port of power from the PowerDsine hub. The test using the heavier load (1200 series access points) ran for one week without problems. All access points continued to function and wireless clients were able to browse and FTP across the network without incident.

Note The Cisco Aironet 1120 and 1121 access points can operate with or without the PowerDsine prestandard passive splitter cable because the access points have internal diodes to allow operation regardless of the power polarity.

Note Testing was done in a lab environment. Cisco suggested that customers perform their own testing to verify proper operation in their operating environments. For additional information on PowerDsine products and their compatibility with Cisco products, refer to this URL: www.powerdsine.com

PowerDsine 48 Volt Active SplitterWhen using a non-Cisco IEEE 802.3af switch, you can use the PowerDsine PD-AS-601 Series Active Splitter (co-located with the access point) to convert from IEEE 802.3af PoE to local power and Ethernet (see Figure 2).

Figure 2 PowerDsine Active Splitter used with an IEEE 802.3af Switch


OL-6862-01


www.powerdsine.com


The PowerDsine active switch is shown in Figure 3.

Figure 3 PowerDsine Active Splitter

Table 9 lists the PowerDsine active splitters:

The PowerDsine PD-AS-601/48 is a 48-V active splitter capable of supporting the Cisco Aironet 1120 and 1121 access points and Cisco Aironet 1200 series access points. Because 48 V is the most common voltage used for PoE devices, PowerDsine also calls this active splitter model a universal splitter (part number PDPS800). PowerDsine also offers the PD-AS-601 in various voltages for other applications.

For additional information on the PowerDsine active splitter, refer to these URLs:

http://www.powerdsine.com/Products/Midspan/Splitters/ActiveSplitter.asp


Table 9 PowerDsine Active Splitters

PowerDsine Active Splitters Supported Cisco Aironet Access Points and Bridges

PD-AS-601/48 (PDPS800) 48 V 1120 and 1121 access points1200 series access points 1300 series access points and bridges1

1. Must also use the Cisco Aironet AIR-PWRINJ-BLR2 power injector.

PD-AS-601/18 18 V 1300 series access points and bridges2

2. Must also use the Cisco Aironet AIR-PWRINJ-BLR2T power injector.


OL-6862-01

http://www.powerdsine.com/Products/Midspan/Splitters/ActiveSplitter.asp



Figure 4 illustrates the PowerDsine PD-AS-601/48 Active Splitter and the MaxRad UFODAP1200 above-the-ceiling with a Cisco Aironet 1200 series access point. The IEEE 802.3af power is supplied by the yellow cable (top) attached to the PowerDsine active splitter (white box). The two black cables from the active splitter supply local power and Ethernet to the access point.

Figure 4 PowerDsine Active Splitter with MaxRad UFODAP1200 Bracket

For additional information on the MaxRad UFODAP1200 above-the-ceiling bracket, refer to this URL:

http://www.maxrad.com/cgi/maxrad_products_ind.cgi?product=10339&catalog=10001

PowerDsine 18 Volt Active SplitterThe PowerDsine PD-AS-601/18 Active Splitter (18 Volts) can be used with the Cisco Aironet AIR-PWRINJ-BLR2T (12 to 40 VDC) transportation power injector to power the Cisco Aironet 1300 series access point or bridge from a non-Cisco IEEE 802.3af power source (see Figure 5).

You can mount the remote access point or bridge up to 200 meters from the switch (100 meters on each side of the power injector). The Cisco Aironet power injector uses dual RG-6 coaxial cable to supply power and Ethernet to the Cisco Aironet 1300 series access point or bridge.

Figure 5 PowerDsine Active Splitter with the Cisco Aironet 1300 Series Access Point or Bridge


OL-6862-01


http://www.maxrad.com/cgi/maxrad_products_ind.cgi?product=10339&catalog=10001


PowerDsine Contact InformationPowerDsine provides several IEEE 802.3af power solutions for the Cisco Aironet 1120 and 1121 access points, the Cisco Aironet 350 and 1200 series access points, and the Cisco Aironet 1300 series access points and bridges.

Note The Cisco Aironet 1130AG series access point fully supports IEEE 802.3af power sources and does not require a PowerDsine product.

Copyright © 2004 Cisco Systems, Inc. All rights reserved.

North AmericaPowerDsine, Inc.1865 New HighwayFarmingdale, NY 11735, USA

Tel: +1-6 31-756-4680Fax: +1-6 31-756-4691

[email protected]

International Headquarters1 Hanagar St., P.O. Box 7220Hod Hasharon 45421, Israel

Tel: +972-9-7755100Fax: +972-9-7755111

[email protected]

EuropePowerDsine EuropeHandelstr. 21D-61130 Nidderau, Germany

Tel: +49-6187-900-849Fax: +49-6187-292-848

[email protected]

PowerDsine SwedenEkbackvagen 2816869 BROMMA, Sweden

Tel: +46(0)8-555-361-46Fax: +46(0)8-555-361-08

[email protected]

JapanPowerDsine Japan19F Bunkyo Green Court Center Office2-28-8 Honkomagome, Bunkyo-KuTokyo, 113-6591 Japan

Tel: +81-3-5978-1814

[email protected]

KoreaPowerDsine KoreaRm 1117 Daewoo Maison Officetel, 750-1 Janghang-dong, Ilsan-ku, Koyang City, Kyunggi-do, Korea

Tel:+82-31-817-6447Fax:+82-11-717-9974

[email protected]

CCSP, the Cisco Square Bridge logo, Follow Me Browsing, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Access Registrar, Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, FormShare, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, Linksys, MeetingPlace, MGX, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StrataView Plus, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.

All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0411R)


OL-6862-01

Cisco Aironet Power Over Ethernet Application Note

Documents

Transcript of Cisco Aironet Power Over Ethernet Application Note