Siemens SCALANCE W1780 Configuration Manual page 70

Configuring with Web Based Management
6.3 "Wizard" menu
● Frequency Band
Specify the frequency band.
– 2.4 GHz
– 5 GHz
● WLAN mode 2.4 GHz/WLAN mode 5 GHz
Select the required transmission standard for the configured frequency band. The selection
depends on the country setting.
– 802.11g
– 802.11n
– 802.11a
– 802.11ac
Note
Data rate
The data rate is adjusted automatically.
● DFS (802.11h)
– Enabled
– Disabled
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The transmission standard IEEE 802.11g (2.4 GHz) is set. This transmission standard is
downwards compatible with IEEE 802.11b.
The transmission standard IEEE 802.11n (2.4 GHz and 5 GHz) is set. This transmission
standard is downwards compatible with IEEE 802.11a and IEEE 802.11g.
The transmission standard IEEE 802.11a (5 GHz) is set.
The transmission standard IEEE 802.11ac (5 GHz) is set.
With the DFS function, it is possible to also use the higher 5 Ghz channels.
These channels are country-specific and are subject to certain DFS regulations. You can
find additional information on this in the country-specific DFS documentation.
Before the access point transmits over one of these channels, it checks for competing
radar signals for 60 seconds according to the CAC (Channel Availability Check).
The access point also does not send any beacons for the duration of the search. With
weather radar channels (5.6 - 5.65 GHz), the duration of the search is 10 minutes.
If no radar signals are detected after the search period has elapsed, the access point
transmits on the channel. Otherwise, the access point changes channel and repeats the
check.
The access point also searches for radar signals continuously during operation.
If the access point discovers a radar signal on the current channel, it changes
automatically to an alternative DFS channel and the current channel is blocked for 30
minutes.
Note
Use 160 MHz channel bandwidth
Channels available for operation at 160 MHz only if DFS is activated.
The DFS function is not used.
SCALANCE W1780/W1740 according to IEEE 802.11ac Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C485-03