Product Characteristics - Siemens SIMATIC NET SCALANCE W760 Series Configuration Manual

Description

2.3 Product characteristics

Possible applications of the SCALANCE W722
The SCALANCE W722 is equipped with an Ethernet interface and a WLAN interface. This
makes the device suitable for the following applications:
● The SCALANCE W722 can be used as a gateway from a wired to a wireless network.
● The SCALANCE W722 can be used with iPCF as a client.
● The SCALANCE W722 supports protection class IP20.
Possible applications of the SCALANCE W721
The SCALANCE W721 is equipped with two Ethernet interfaces and a WLAN interface. This
makes the device suitable for the following applications:
● The SCALANCE W721 can be used as a gateway from a wired to a wireless network.
● The SCALANCE W721 supports protection class IP20.
2.3 Product characteristics
Properties of the SCALANCE W700 devices
● The Ethernet interface supports the following:
– 10 Mbps and 100 Mbps both in full and half duplex
– Autocrossing
– Autopolarity
● Operating the WLAN interface in the frequency bands 2.4 GHz and 5 GHz.
● The WLAN interface is compatible with the standards IEEE 802.11a , IEEE 802.11b , and
IEEE 802.11g. In the 802.11a and 802.11g mode, the gross transmission rate is up to 54
Mbps.
● IEEE 802.11n
High-speed WLAN standard (wireless LAN) and can operate in the 2.4 GHz and in the 5
GHz range.
● IEEE 802.11h - Supplement to IEEE 802.11a
In the 802.11h mode, the methods "Transmit Power Control (TPC)" as well as "Dynamic
Frequency Selection (DFS)" are used in the range 5.25 - 5.35 and 5.47 - 5.75 GHz. In
some countries, this allows the frequency subband of 5.47 - 5.725 GHz to be used in the
outdoor area even with higher transmit powers.
TPC is a method of adapting the transmit power.
With DFS, the access point searches for primary users for 60 seconds before starting
communication on the selected channel. During this time the access point does not send
beacons. If signals are found on the channel, the channel is blocked for 30 minutes, the
access point changes channel and repeats the check. Primary users are also searched
for during operation.
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SCALANCE W760/W720 to IEEE 802.11n Web Based Management
Configuration Manual, 11/2014, C79000-G8976-C350-03