AirLive WIAS-1200G - Manual (Page 41)

AirLive WIAS-1200G
User’s Guide
33
Advance: For advance settings in detail, please click the hyperlink Advance to go into the Advance page.
1. Authentication Type: The default value is Auto. When “Auto” is selected, it will auto-detect to
authenticate by Shared Key type or Open System type. Shared Key is used such that both the sender and
the recipient share a WEP key for authentication. Open Key is that the sender and the recipient do not
share a WEP key for authentication. All points on the network must use the same authentication type.
2. Transmission Rates: The default value is Auto. The range is from 1 to 54Mbps. The rate of data
transmission should be set depending on the speed of this particular wireless network. Select from a range
of transmission speeds or keep the default setting, Auto, to make the Access Point use the fastest possible
data rate automatically.
3. CTS Protection Mode: The default value is Disable. When enabled, a protection mechanism will ensure
that the 802.11b devices can connect to Access Point and not be affected by many other 802.11g devices
existing at the same time. However, the performance of this 802.11g devices may decrease.
4. Basic Rate: The basic rate offers three options, All, Set1 and Set2 and the default value is Set1.
Depending on the wireless mode selected, AirLive WIAS-1200G will deliver a pre-defined data rate. Select
“All” to activate all transmission rates to be compatible with the majority of the devices.
5. Beacon Interval: Enter a value between 20 and 1000 msec, default value is 100 milliseconds. The entered
time means how often the signal transmission occurs between the access point and the wireless network.
6. RTS Threshold: Ready To Send threshold. The range is from 256 to 2346 and the default is OFF. The
administrator could set the value which is the time to wait before sending another packet. It is recommended
that the value remains in the range of 256 to 2346.
7. Fragmentation Threshold: The range is from 256 to 2346 and the default is OFF. The value specifies the
maximum size of packet allowed before data is fragmented into multiple packets. It should be remained in
the range of 256 to 2346. A smaller value results smaller packets but with a larger numbers of packets in
transmission.
8. DTIM Interval: This function indicates the interval of the Delivery Traffic Indication Message (DTIM). DTIM
is a countdown function to inform clients to listen to broadcast and multicast messages. When an Access
Point has buffered broadcast or multicast message from an associated client, it sends the next DTIM at this
interval rate (from 1~255), the client will hear the beacons.
9. ACK Timeout: This function is to define ACK timeout parameter of Atheros wireless LAN chipset. Generally,
the higher the ACK timeout is, the lower the throughput is. Thus, ACK timeout should be the optimization of
distance over throughput.