![Cerio DT-300N User Manual Download Page 33](http://html1.mh-extra.com/html/cerio/dt-300n/dt-300n_user-manual_2583660033.webp)
2.6 Configure Wireless Advanced Setup
The administrator can change the Slot Time, ACK Timeout, RTS threshold and fragmentation
threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the
below setting.
Slot Time :
Slot time is in the range of
9~1489
and set in unit of
microsecond
. The default
value is
9
microsecond.
Slot time is the amount of time a device waits after a collision before retransmitting a
packet. Reducing the slot time decreases the overall back-off, which increases
throughput. Back-off, which is a multiple of the slot time, is the random length of time a
station waits before sending a packet on the LAN. For a sender and receiver own right of
the channel the shorter slot time help manage shorter wait time to re-transmit from
collision because of hidden wireless clients or other causes. When collision sources can
be removed sooner and other senders attempting to send are listening the
channel(CSMA/CA) the owner of the channel should continue ownership and finish their
transmission and release the channel. Then, following ownership of the channel will be
sooner for the new pair due to shorter slot time. However, when long duration of existing
collision sources and shorter slot time exist the owners might experience subsequent
collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS
could supplement and help improve performance.