Quick Reference Guide

This table describes the options available from the Security section:

Status Description

Transmit Rate

Power Saving

Power saving options are Off, Normal, and Maximum. Power saving is

disable when Ad-Hoc mode is selected in the Network Mode field.

When the Power Saving setting is Off, the adapter receives full power

from the PC. When the setting is Normal, the driver turns off power to

the MA521 Wireless PC Card for brief periods over briefly-spaced time

intervals. When the setting is Maximum, the driver turns off power to

the MA521 Wireless PC Card for longer periods over more widely-

spaced time intervals.

Transmit Power

This option controls the Radio Frequency (RF) output power. Selects

100%, 50%, 25%, 12.5%, or Minimum.

Preamble Type

A long transmit preamble allows the receiver (MA521 Wireless PC Card)

to lock into the received bit patterns more easily. A short transmit

preamble provides better performance. Default: Auto (long & short).

Fragmentation

Threshold

This is the packet length used for fragmentation. Packets larger than

the size programmed in this field will be fragmented. The

Fragmentation Threshold value must be larger than RTS Threshold

value. The default value for Fragmentation Threshold is 2432.

The Transmit Rate field allows to define the data transfer rate. The

default value if Fully Automatic. In this case, the best transfer rate is

negotiated between this wireless node and access point or another

wireless note that it is communicating with. Other option values for

this field are 1, 2, 5.5 and 11 Mbps.

RTS/CTS

Threshold

The packet size that wireless node uses to determine if it should use the

CDMA/CD mechanism or the CSMA/CA mechanism for packet

transmission. With the CSMA/CD transmission mechanism, the

transmitting station sends out the actual packet as soon as it has waited

for the silence period. With the CSMA/CA transmission mechanism, the

transmitting station sends out a RTS packet to the receiving station,

waits for the receiving station to send back a CTS packet before sending

the actual packet data. The default value for RTS Threshold is 2432.