SCALANCE network components
4.6 SCALANCE W components for the Industrial Wireless LAN
Industrial Ethernet
204 System Manual, 09/2019, C79000-G8976-C242-10
To protect against unauthorized access, the products provide modern standard mechanisms
for user identification (authentication) and encryption of data and can furthermore be
integrated easily into existing security concepts.
● Access points
Access points are the central base stations for infrastructure networks. They coordinate
and control the wireless traffic within a wireless cell. If there are two or more access
points in a wireless network with the same wireless network name (SSID), the client
module can move between the wireless cells formed by the individual access points
(roaming). The wireless connection is retained during roaming. This technique is used
when the required wireless coverage is greater than the distance that can be covered by
a single access point. All access points can also be configured so that their functionality
is restricted to that of a client.
● Direct Access Points
The direct access points have integrated controller functions and allow for centralized
management of up to 128 access points. They are designed according to the IWLAN
standard IEEE 802.11ac Wave 2 and are used wherever only very high data rates are
required.
● Client modules
Client modules of the SCALANCE W product line are used as gateways between
wireless and wired network segments (bridge function). Normally, they communicate with
an access point (infrastructure network). All access points can also be configured as
client modules.
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