Motorola WS5100 用户手册

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8. Select a channel for communications between the access port and MUs in the 

 field. 

The selection of a channel determines the available power levels. The range of legally approved 
communication channels varies depending on the installation location and country. The selected channel 
can be a specific channel, “Random,” or “ACS.” Random assigns each radio a random channel. ACS 
(Automatic Channel Selection) allows the switch to systematically assign channels. Default is Random.

9. After first selecting a channel, select a power level in dBm for RF signal strength in the 

 field. 

The optimal power level for the specified channel is best determined by a site survey prior to installation. 
Available settings are determined according to the selected channel. Set a higher power level to ensure 
RF coverage in WLAN environments that have more electromagnetic interference or greater distances 
between the access port and MUs. Decrease the power level according to the proximity of other access 
ports. Overlapping RF coverage may cause lost packets and difficulty for roaming devices trying to 
engage a access port. After setting a power level, channel and placement the RF output power for the 
access port is displayed in mW. Default is 20 dBm (802.11bg), 17 dBm (802.11a)

)

10.To configure optional rate settings, click the 

 button to display a new dialogue containing 

rate setting information. Instructions on configuring rate settings are described in 

11.In most cases, the default settings for the 

section are sufficient for most users. 

If needed, additional radio settings can be modified for the following properties:

NOTE: After setting a power level, channel and placement the RF output power for the 
access port is displayed below in mW.

Use the drop-down menu to configure the Antenna Diversity settings for access ports using 
external antennas. Options include:

• Full Diversity: Utilizes both antennas to provide antenna diversity.

• Primary Only: Enables only the primary antenna.

• Secondary Only: Enables only the secondary antenna.

Antenna Diversity should only be enabled if the access port has two matching external 
antennas. Default value is 

. 

Sets the maximum number of MUs that can associate to a radio. The maximum number of 
stations that can associate to a radio are 64.

The Adoption Preference ID defines the preference ID of the switch.The value can be set 
between 1 and 65535. To make the radios preferred, the access port preference ID should be 
same as adoption preference ID. 

The adoption preference id is used for RP load-balancing. A switch will preferentially adopt 
access ports which have the same adoption-preference-id as the switch itself.

If using an 802.11 bg radio, select this checkbox for the radio to transmit using a short 
preamble. Short preambles improve throughput. However, some devices (SpectraLink 
phones) require long preambles. This checkbox does not display if using an 802.11a radio.