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Low Power Condition on Autonomous Access Points Chapter 3 Troubleshooting 1250 Series Autonomous Access Points (where indicates the CDP device detected by the access point and indicates the Ethernet port of the CDP device. - If a power injector is installed, issue the command: power inline negotiation injector installed. • %CDP_PD-2-POWER_LOW: All radios disabled- LOW_POWER_CLASSIC_INJECTOR_ CONFIGURED_ON_ANOTHER_PORT ()-This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access point. A power injector has been configured, but it is for another port. It is likely that the access point has been relocated and has not been reconfigured for a new power injector. The indicates the CDP device detected by the access point. The indicates the MAC address of the CDP device, typically, the switch port. Note A Cisco 1250 power injector might be required. Following the low power status message, two extra messages are displayed when using the console port or a Telnet session that identify the actions needed to resolve this low power problem: 1. Verify the required power injector is installed on the new port: (). (where indicates the CDP device detected by the access point and indicates the Ethernet port of the CDP device. 2. If a power injector is installed, issue the command: power inline negotiation injector installed. • %CDP_PD-2-POWER_LOW: All radios disabled- HIGH_POWER_CLASSIC_NOT_ CONFIGURED inline power source ()-This message indicates the access point is in low power mode with all radios disabled and has detected a Cisco switch that does not support Intelligent Power Management, but should be able to supply sufficient power. The access point must be configured for pre-standard compatibility. The< platform name> indicates the Cisco platform detected by the access point. The indicates the MAC address of the switch port. Note You need to upgrade the software on the Cisco switch to support Intelligent Power Management or configure the access point for pre-standard compatibility. • %CDP_PD-2-POWER_LOW: All radios disabled-INJECTOR_CONFIGURED_BUT_FAILS_ VERIFICATION ()-This message indicates the access point is in low power mode with all radios disabled and a power injector has been configured but has not been detected by the access point. The< platform name> indicates the Cisco platform detected by the access point. The indicates the MAC address of the switch port. 3-10 Cisco Aironet 1250 Series Access Point Hardware Installation Guide OL-8247-03

Section	Page
Cisco Aironet 1250 Series Access Point Hardware Installation Guide	1
Contents	3
Preface	9
Audience	9
Purpose	9
Organization	9
Conventions	10
Related Publications	12
Locating the Product Serial Number	13
Obtaining Documentation, Obtaining Support, and Security Guidelines	14
Overview	15
Product Terminology	15
Autonomous Access Points	15
Lightweight Access Points	16
Guidelines for Using Cisco Aironet Lightweight Access Points	16
Hardware Features	17
Radio Module Slots	19
Single or Dual-Radio Operation	19
Operating Modes	19
Spatial Multiplexing	19
Maximum Ratio Combining	20
Antennas Supported	20
LEDs	21
Ethernet Port	21
Console Port	22
Power Sources	22
UL 2043 Compliance	22
Anti-Theft Features	23
Network Examples with Autonomous Access Points	24
Root Unit on a Wired LAN	24
Repeater Unit that Extends Wireless Range	25
Central Unit in an All-Wireless Network	26
Workgroup Bridge Network	26
Network Example with Lightweight Access Points	27
Installing the Access Point	29
Safety Information	30
FCC Safety Compliance Statement	30
General Safety Guidelines	30
Warnings	30
Unpacking the Access Point	31
Package Contents	31
Basic Installation Guidelines	32
Before Beginning the Installation	32
Access Point Bottom Connector Access Openings	32
Installation Summary	33
Mounting Overview	33
Mounting on a Horizontal or Vertical Surface	35
Mounting Below a Suspended Ceiling	37
Mounting Above a Suspended Ceiling	39
Installing Option One	41
Installing Option Two	43
Installing Option Three	44
Mounting to a Network Cable Box	46
Mounting on a Desktop or Shelf	47
Connecting the Ethernet and Power Cables	48
Connecting to an Ethernet Network with an Inline Power Source	49
Connecting to an Ethernet Network with Local Power	50
Powering Up the Access Point	50
Installing or Removing the Mounting Plate Latch	51
Installing the Mounting Plate Latch	51
Removing the Mounting Plate Latch	51
Installing the Access Point to the Mounting Plate	52
Mounting Plate Not Attached to a Surface	52
Mounting Plate Attached to a Surface	54
Securing the Access Point	55
Securing the Access Point to the Mounting Plate	55
Using a Security Cable to Secure the Access Point	57
Removing the Access Point From the Mounting Plate	58
Removing a Radio Module	60
Inserting a Radio Module	62
Troubleshooting 1250 Series Autonomous Access Points	65
Checking the Autonomous Access Point LEDs	66
Checking the Power Injector LEDs	68
Checking Basic Settings	69
Default IP Address Behavior	69
Enabling the Radio Interfaces	69
SSID	70
WEP Keys	70
Security Settings	70
Low Power Condition on Autonomous Access Points	71
Intelligent Power Management	71
Inline Power Status Messages	72
Configuring Power Using the CLI	75
Issuing the Cisco IOS Command Using the CLI	77
Configuring the Access Point System Power Settings Using a Browser	77
Running the Carrier Busy Test	80
Running the Ping Test	81
Resetting to the Default Configuration	82
Using the MODE Button	82
Using the Web Browser Interface	83
Reloading the Access Point Image	83
Using the MODE Button	83
Web Browser Interface	84
Browser HTTP Interface	84
Browser TFTP Interface	85
Obtaining the Access Point Image File	86
Connecting to the Access Point Locally	86
Obtaining the TFTP Server Software	88
Troubleshooting 1250 Series Lightweight Access Points	89
Guidelines for Using Cisco Aironet Lightweight Access Points	90
Using DHCP Option 43	90
Checking the Lightweight Access Point LEDs	91
Checking the Power Injector LEDs	94
Low Power Condition for Lightweight Access Points	95
Intelligent Power Management	95
Inline Power Status Messages	96
Configuring Power Using Controller CLI Commands	99
Manually Configuring Controller Information Using the Access Point CLI	100
Configuring Controller Information	101
Clearing Manually Entered Controller Information	101
Manually Resetting the Access Point to Defaults	101
MODE Button Setting	101
Connecting to the Access Point Locally	102
Obtaining the TFTP Server Software	103
Translated Safety Warnings	105
Declarations of Conformity and Regulatory Information	107
Manufacturers Federal Communication Commission Declaration of Conformity Statement	108
VCCI Statement for Japan	109
Industry Canada	109
Canadian Compliance Statement	109
European Community, Switzerland, Norway, Iceland, and Liechtenstein	110
Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC	111
Declaration of Conformity for RF Exposure	113
Guidelines for Operating Cisco Aironet Access Points in Japan	114
Japanese Translation	114
English Translation	114
Administrative Rules for Cisco Aironet Access Points in Taiwan	115
Access Points with IEEE 802.11a Radios	115
Chinese Translation	115
English Translation	115
All Access Points	116
Chinese Translation	116
English Translation	116
Chinese Translation	117
English Translation	117
Operation of Cisco Aironet Access Points in Brazil	118
Access Point Models	118
Regulatory Information	118
Portuguese Translation	118
English Translation	118
Declaration of Conformity Statements	119
Declaration of Conformity Statements for European Union Countries	119
Access Point Specifications	121
Channels and Power Levels	125
Console Cable Pinouts	127
Overview	128
Console Port Signals and Pinouts	128
Configuring DHCP Option 43 for Lightweight Access Points	129
Overview	130
Configuring Option 43 for 1000 and 1500 Series Access Points	131
Configuring Option 43 for 1100, 1130, 1200, 1240, 1250, 1300, and 1520 Series Lightweight Access Points	132
Glossary	133

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3-10

Cisco Aironet 1250 Series Access Point Hardware Installation Guide

OL-8247-03

Chapter 3

Troubleshooting 1250 Series Autonomous Access Points

Low Power Condition on Autonomous Access Points

(where <

platform name

> indicates the CDP device detected by the access point and

Ethernet port

> indicates the Ethernet port of the CDP device.

–

If a power injector is installed, issue the command: power inline negotiation injector installed.

•

%CDP_PD-2-POWER_LOW: All radios disabled- LOW_POWER_CLASSIC_INJECTOR_

CONFIGURED_ON_ANOTHER_PORT <

platform name

> (<

MAC address

>)—This message

indicates the access point is in low power mode with all radios disabled and has detected a CDP

device that is unable to supply sufficient power to the access point. A power injector has been

configured, but it is for another port. It is likely that the access point has been relocated and has not

been reconfigured for a new power injector.

The <

platform name

> indicates the CDP device detected by the access point. The <

MAC address

indicates the MAC address of the CDP device, typically, the switch port.

Note

A Cisco 1250 power injector might be required.

Following the low power status message, two extra messages are displayed when using the console

port or a Telnet session that identify the actions needed to resolve this low power problem:

Verify the required power injector is installed on the new port: <

platform name

> (<

Ethernet

port

>).

(where <

platform name

> indicates the CDP device detected by the access point and

Ethernet port

> indicates the Ethernet port of the CDP device.

If a power injector is installed, issue the command: power inline negotiation injector installed.

•

%CDP_PD-2-POWER_LOW: All radios disabled- HIGH_POWER_CLASSIC_NOT_

CONFIGURED inline power source <

platform name

> (<

MAC address

>)—This message indicates

the access point is in low power mode with all radios disabled and has detected a Cisco switch that

does not support Intelligent Power Management, but should be able to supply sufficient power. The

access point must be configured for pre-standard compatibility.

The<

platform name>

indicates the Cisco platform detected by the access point. The

<MAC

address>

indicates the MAC address of the switch port.

Note

You need to upgrade the software on the Cisco switch to support Intelligent Power

Management or configure the access point for pre-standard compatibility.

•

%CDP_PD-2-POWER_LOW: All radios disabled-INJECTOR_CONFIGURED_BUT_FAILS_

VERIFICATION <

platform name

> (<

MAC address

>)—This message indicates the access point is

in low power mode with all radios disabled and a power injector has been configured but has not

been detected by the access point.

The<

platform name>

indicates the Cisco platform detected by the access point. The

<MAC

address>

indicates the MAC address of the switch port.