IAP-420/420+ User Manual
ORing Industrial Networking Corp. 34
Indication Message (DTIM). A DTIM field is a
countdown field informing clients of the next window for
listening to broadcast and multicast messages. When
the AP has buffered broadcast or multicast messages for
associated clients, it sends the next DTIM with a DTIM
Interval value. Its clients hear the beacons and awaken
to receive the broadcast and multicast messages.
Fragmentation Threshold
The value specifies the maximum size for a packet before
data is fragmented into multiple packets. The value
should remain at the default
2346
(the range is 256 -
2346 bytes). If you experience a high packet error rate,
you may slightly increase the value. Setting the value too
low may result in poor network performance. Only minor
modifications of this value are recommended.
RTS Threshold
The RTS (Request to Send) Threshold is the amount of
time a wireless device, attempting to send, will wait for a
recipient to acknowledge that it is ready. Normally, the AP
sends a RTS frame to a station and negotiates the
sending of data. After receiving the RTS, the station
responds with a CTS (Clear to Send) frame to
acknowledge the right to begin transmission. To ensure
communication, the maximum value should be used,
which is the default value
2347
(the range is 0-2347
bytes). If a network packet is smaller than the preset RTS
threshold size, the RTS/CTS mechanism will not be
enabled.
Xmit Power
Xmit Power allows you to change the power output level.
This value ranges from 1 - 100 percent, default value is
100 percent. A safe increase of up to 60 percent would
be suitable for most users. Higher power settings are
not recommended for users due to excess heat
generated by the radio chipset, which can affect the life of
the AP.
Max Client Threshold
This is the maximum number of clients for an AP. When
the number of clients exceeds the value, the AP will reject
the roaming connection. This value is only used on
