M SERIES ANALOG CORDED USER GUIDE
www.teledex.com
25
website for negotiation . After receiving an RTS frame, the wireless website will return a CTS (Clear to
Send) frame to the gateway as the response, this represents that both of them can make the wireless
communication .
Transmission power: Used to set the wireless transmission power level . The default is 100 in the scope
of 1–100 .
Wi-Fi multimedia capability: After WMM is enabled, it has wireless QOS (Quality of Service) functions
which can treat the audio and video data at priority to ensure the preferential delivery of audio and video
data . The option is enabled by default .
WMM Confguration page below.
WMM (Wireless Multi Media) Parameters are governed by values as defined by EDCA (Enhanced Data
Channel Access) . With EDCA, high-priority traffic has a higher chance of being sent than low-priority
traffic: a station with high priority traffic waits a little less before it sends its packet, on average, than a
station with low priority traffic .
AC = Access Category
AC_BE = Access Category_Best Effort
AC_BK = Access Category_Background
AC_VI = Access Category_Video
AC_VO = Access Category_Voice
CWMin = Contention Window Minimum
CWMax = Contention Window Maximum
AIFSn = Arbitration inter-frame spacing (AIFS), in wireless LAN communications, is a method of
prioritizing one Access Category (AC) over the other, such as giving voice or video priority over email .
