Welcat CTR-800-11W, User Manual

Page: 74 / 144

4-6 Network Menu
4-21
Chap.
4
4-6-1-3 Detailed Setup
1. From the System Menu, select "2:Network."
2. Then select "1:RF."
3. Then select "3:Advanced."
■ Preamble
Set the preamble.
The preamble is a data part located at head of a wireless
packet. It contains the information that is required for
wireless packet transmission and reception between an access point and a
terminal. "Short preamble" improves the throughput more than "Long
preamble."
LONG Sets a Long preamble.
SHORT Sets a Short preamble.
Some access points may not receive a Short preamble. In this case, please set it to
a Long preamble. Refer to the access point manual for details.
■
RTS Threshold
This determines whether an RTS packet is transmitted before transmission of a
data packet. When the size of a data packet is larger than the set value, an RTS
packet is transmitted, and RTS-CTS control is performed. When a large number
of terminals are connected to the same access point, or terminals cannot detect
each other because they are dispersed remotely even if detection of an access
point is possible, RTS-CTS control becomes effective. Although RTS-CTS control
is effective in this case, the throughput reduces. Usually set it to the default value
(2432 bytes).
Possible Setting Range
Even value of between 0-3000 bytes
(In the case of odd number, 1 is added)
< Advanced Option >
1:Preamble LONG
2:RTS_Threshold 2432
< Network Config >
1:RF 5:DNS
2:TCP/IP 6:SNMP
3:DHCP 7:MAC
4:FTP
< RF Setup >
1:Basic
2:Security
3:Acvanced