Cisco Aironet Power Injector AIR-PWRINJ6= Guide
Disable PoE on the Connected Switchport
This document describes the Cisco Aironet series access point power injector AIR-PWRINJ6= (referred to as the power injector in this document) and provides instructions for mounting them.
The Cisco Aironet Power Injector AIR-PWRINJ6= increases wireless LAN deployment flexibility of supported Cisco Aironet Access Points by providing an alternative powering option to local power, inline power-capable multiport switches, and multiport power patch panels.
The single-port PoE injector provides up to 30 Watts and is compliant with IEEE 802.3af (15.4 W) and IEEE 802.3at (30 W) systems. This power injector is for use with Cisco access points requiring 802.3at power input.
Note The Cisco Aironet Power Injector AIR-PWRINJ6= is not weatherproof and hence is not meant to be used outdoors.
A Category 5 or better Ethernet cable connects the injector to a 10/100/1000 Ethernet switch, hub, or network, and another cable carries power and data to the access point's WAN Ethernet port. The power injector’s built-in power supply has a C13 connector that connects to a wall outlet or power strip. The power injector connects to a wall outlet or power strip.
Figure 1 shows the key features of the power injector.
Figure 1 Cisco Aironet Power Injector (AIR-PWRINJ6=) Features
Status LED1 |
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The Status LED indicates the following system status events:
Figure 2 shows a typical installation scenario.
Figure 2 Power Injector AIR-PWRINJ6= Installation Scenario
The typical power injector package contains the following items:
If any item is missing or damaged, contact your Cisco representative or reseller.
Use the power cord that shipped with your power injector to supply power for the injector. If you install the access point in an environmental air space such as above a suspended ceiling, check national and local safety codes to make sure that the Ethernet cable you connect to the unit meets applicable standards.
Note ● The AIR-PWRINJ6= should not be installed in the plenum airspace.
Sometimes, when the AP is connected to the AIR-PWRINJ6 that is cabled to a 802.3af PoE-enabled switchport, it might not function properly. To resolve this, disable PoE on the switchport connected to the AIR-PWRINJ6= injector.
Failure to do so will result in the injector not supplying full power to the AP and might cause issues such as disabled radios since the AP will intermittently receive only 15.4W of power.
To disable PoE on the connected switchport, execute the power inline never command at the CLI prompt of the Cisco switch when it is in the interface config mode.
Follow these steps to install the power injector:
1. Plug a Category-5 Ethernet cable into the port on the power injector labeled AP.
2. Plug the other end of the Ethernet cable into the WAN uplink Ethernet port of the access point.
3. Plug a Category-5 Ethernet cable into the port on the power injector labeled Switch.
Note Ensure that PoE is disabled on this switchport before it is connected to the AIR-PWRINJ6= injector. For more information, go to Disable PoE on the Connected Switchport
4. Plug the other end of the Ethernet cable into your 10/100/1000 Ethernet switch, hub, or network.
5. When power is applied, the Status LED is amber. When the AP is detected, the Status LED glows solid green.
6. Secure the power injector by mounting it to a vertical or horizontal surface using the mounting keyholes on the bottom of the unit.
You can mount the power injector to most vertical or horizontal surfaces using the mounting tabs on the top right and bottom left of the unit.
To mount the power injector to a vertical or horizontal surface using the mounting tabs, you will need the following parts and tools:
Follow these steps to mount the power injector:
1. Using the holes in the power injector mounting tabs as a template, mark the locations on the surface where you will drill the holes for the wall anchors or screws.
2. Drill a 3/16-in. (4.7-mm) hole at each marked location.
3. If you are using #6 wall anchors, use a hammer to install them in the holes.
4. Hold the power injector to the wall and align the mounting tabs on the power injector with the screw holes.
5. Insert the #6 screws through the mounting tabs and into the holes in the wall or surface.
6. Use a Phillips head screwdriver to drive the screws into the surface.
Note If the power injector is not securely fastened, continue making small adjustments until you are satisfied.
This table lists specifications for the power injectors:
Note AIR-PWRINJ6 is provided by two suppliers and have minor cosmetic differences even though they are functionally identical.
The following information is for FCC compliance of Class B devices:
The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.