Getting Started: Initial PMP Link Setup, Additional AP Configuration Considerations

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Article Getting Started:  Initial PMP Link Setup, Requisite AP Configuration discusses the configuration required for a simple Canopy link.  For additional customization of a simple link's AP parameters, please reference below:

Parameter

Web management interface location

Description

Max Range

Configuration -> Radio -> Frame Configuration

Enter a number of miles (or kilometers divided by 1.61, then rounded to an integer) for the furthest distance from which a SM is allowed to register to this AP. Do not set the distance to any greater number of miles. A greater distance

·         does not increase the power of transmission from the AP.

·         can reduce aggregate throughput.

Regardless of this distance, the SM must meet the minimum requirements for an acceptable link. If the AP is in cluster, then you must set this parameter on all other APs in the cluster exactly the same, except as described in the NOTE admonition below. The default value of this parameter is 2 miles (3.2 km).

Downlink Data

Configuration -> Radio -> Frame Configuration

Specify the percentage of the aggregate throughput for the downlink (frames transmitted from the AP to the subscriber). For example, if the aggregate (uplink and downlink total) throughput on the AP is 90 Mb, then 75% specified for this parameter allocates 67.5 Mb for the downlink and 22.5 Mb for the uplink. The default for this parameter is 75%. This parameter must be set in the range of 15% - 85%, otherwise the invalid input will not be accepted and the previously-entered valid setting is used.

 

Note

This setting does not prevent a device connected to the Ethernet port from accessing the management interface of other SMs in the network. To prevent this, use the IP Access Filtering Enabled selection in the IP Access Control parameter of the SMs in the network. See IP Access Control below.

Transmit Power

Configuration -> Radio -> Power Control

This value represents the combined power of the device’s two transmitters.

Nations and regions may regulate transmit power. For example

·         Some 450 Series modules are available as connectorized radios, which require the operator to adjust power to ensure regulatory compliance.

The professional installer of the equipment has the responsibility to:

·         Maintain awareness of applicable regulations.

·         Calculate the permissible transmitter output power for the module.

·         Confirm that the initial power setting is compliant with national or regional regulations.

Confirm that the power setting is compliant following any reset of the module to factory defaults.

External Gain

Configuration -> Radio -> Power Control

This value needs to correspond to the published gain of the antenna used to ensure the radio will meet regulatory requirements.

SM Receive Target Level

Configuration -> Radio -> Power Control

Each SM’s Transmitter Output Power is automatically set by the AP. The AP monitors the received power from each SM, and adjusts each SM’s Transmitter Output Power so that the received power at the AP from that SM is not greater what is set in this field. This value represents the transmitted and received power (combined power) perceived on the SM.