ZyXEL Communications Corporation NWA5301NJ Manual De Usuario

 Chapter 9 AP Profile

NWA5301-NJ User’s Guide

RTS/CTS 

Threshold

Use RTS/CTS to reduce data collisions on the wireless network if you have wireless 
clients that are associated with the same AP but out of range of one another. When 
enabled, a wireless client sends an RTS (Request To Send) and then waits for a CTS 
(Clear To Send) before it transmits. This stops wireless clients from transmitting 
packets at the same time (and causing data collisions). 

A wireless client sends an RTS for all packets larger than the number (of bytes) that 
you enter here. Set the RTS/CTS equal to or higher than the fragmentation threshold to 
turn RTS/CTS off.

Beacon Interval

When a wirelessly networked device sends a beacon, it includes with it a beacon 
interval. This specifies the time period before the device sends the beacon again. The 
interval tells receiving devices on the network how long they can wait in low-power 
mode before waking up to handle the beacon. A high value helps save current 
consumption of the access point. 

DTIM

Delivery Traffic Indication Message (DTIM) is the time period after which broadcast and 
multicast packets are transmitted to mobile clients in the Active Power Management 
mode. A high DTIM value can cause clients to lose connectivity with the network. This 
value can be set from 1 to 255.

Output Power

Set the output power of the AP in this field. If there is a high density of APs in an area, 
decrease the output power of the NWA5160N to reduce interference with other APs. 
Select one of the following Max, -3db (50%), -6db (25%), -9dB (12.5%) or Min. 
See the product specifications for more information on your NWA’s output power.

Note: Reducing the output power also reduces the NWA’s effective broadcast radius.

Enable Signal 

Threshold

Select the check box to use the signal threshold to ensure wireless clients receive good 
throughput. This allows only wireless clients with a strong signal to connect to the AP.

Clear the check box to not require wireless clients to have a minimum signal strength 
to connect to the AP.

Station Signal 

Threshold

Set a minimum client signal strength. A wireless client is allowed to connect to the AP 
only when its signal strength is stronger than the specified threshold. 

-20 dBm is the strongest signal you can require and -76 is the weakest.

Disassociate 

Station 

Threshold

Set a minimum kick-off signal strength. When a wireless client’s signal strength is 
lower than the specified threshold, the NWA disconnects the wireless client from the AP. 

-20 dBm is the strongest signal you can require and -90 is the weakest.

Allow Station 

Connection after 

Multiple Retries

Select this option to allow a wireless client to try to associate with the AP again after it 
is disconnected due to weak signal strength.

Station Retry 

Count

Set the maximum number of times a wireless client can attempt to re-connect to the 
AP 

Rate Configuration

This section controls the data rates permitted for clients. 

For each rate, select a rate option from its list. The rates are:

•

Basic Rate (Mbps) - Set the basic rate configuration in Mbps. Clients can always 

connect to the NWA at this speed.

•

Support Rate (Mbps) - Set the support rate configuration in Mbps. Clients can 

connect to the NWA at this speed, when permitted to do so by the NWA.

•

MCS Rate - Set the MCS rate configuration. EEE 802.11n supports many different 

data rates which are called MCS rates. MCS stands for Modulation and Coding 

Scheme. This is an 802.11n feature that increases the wireless network 

performance in terms of throughput. 

Multicast Settings

Configuration > Object > AP Profile > Add/Edit Profile (continued)