Access Point Radio Power Overrides (AP 7161 Only)

This option is only available for AP 7161 access points.

Use the Power screen to set or override one of two power modes (3af or Auto) for a managed Access Point. When Automatic is selected, the Access Point safely operates within available power. Once the power configuration is determined, the Access Point configures its operating power characteristics based on its radio model and power configuration.

An Access Point uses a complex programmable logic device (CPLD). The CPLD determines proper supply sequencing, the maximum power available and other status information. One of the primary functions of the CPLD is to determine the Access Point's maximum power budget. When an Access Point is powered on (or performing a cold reset), the CPLD determines the maximum power provided by the POE device and the budget available to the Access Point. The CPLD also determines the hardware SKU and the number of radios.

If the Access Point's POE resource cannot provide sufficient power (with all intended interfaces enabled), some of the following interfaces could be disabled or modified:

  • The Access Point's transmit and receive algorithms could be negatively impacted
  • The Access Point's transmit power could be reduced due to insufficient power
  • The Access Point's WAN port configuration could be changed (either enabled or disabled)

To define an access point‘s power configuration:

  1. Select the Configuration tab from the Web UI.
  2. Select Profiles from the Configuration tab.
  3. Select Manage Profiles from the Configuration>Profiles menu.
  4. Select Power.
  5. Use the Power Mode drop-down menu to set or override the Power Mode Configuration on this AP.
    Note

    Note

    Single radio model Access Point‘s always operate using a full power configuration. The power management configurations described in this section do not apply to single radio models.

    When an Access Point is powered on for the first time, the system determines the power budget available to the Access Point. Using the Automatic setting, the Access Point automatically determines the best power configuration based on the available power budget. Automatic is the default setting.

    If 802.3af is selected, the Access Point assumes 12.95 watts are available. If the mode is changed, the Access Point requires a reset to implement the change. If 802.3at is selected, the Access Point assumes 23 - 26 watts are available.

  6. Set or override the Access Point radio‘s 802.3af Power Mode and the radio‘s 802.3at Power Mode.
  7. Use the drop-down menu to define a mode of either Range or Throughput.
  8. Select Throughput to transmit packets at the radio‘s highest defined basic rate (based on the radio‘s current basic rate settings). This option is optimal in environments where the transmission range is secondary to broadcast/multicast transmission performance.
  9. Select Range when range is preferred over performance for broadcast/multicast (group) traffic. The data rates used for range are the lowest defined basic rates. Throughput is the default setting for both 802.3af and 802.3at.
  10. Select OK to save the changes and overrides made to the Access Point power configuration. Select Reset to revert to the last saved configuration.