Siemens IEEE802.11 Instructions d'exploitation Page 23

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Description
2.5 Requirements for installation and operation of SCALANCE W700 devices
SCALANCE W770/W730 to IEEE 802.11n Web Based Management
Configuration Manual, 11/2014, C79000-G8976-C323-03
23
Modulation and coding schemes
The IEEE 802.11n standard supports different data rates. The data rates are based on the
number of spatial streams, the modulation method and the channel coding. The various
combinations are described in modulation and coding schemes.
2.5
Requirements for installation and operation of SCALANCE W700
devices
Requirements for installation and operation of SCALANCE W700 devices
A PG/PC with a network connection must be available in order to configure
SCALANCE W700 devices. If no DHCP server is available, a PC on which the Primary
Setup Tool (PST) is installed is necessary for the initial assignment of an IP address to the
SCALANCE W700 devices. For the other configuration settings, a computer with Telnet or a
Web browser is necessary.
2.6
C-PLUG and KEY-PLUG
Configuration information on the C-PLUG / KEY-PLUG
The C-PLUG or KEY-PLUG stores the configuration of a device and can therefore transfer
the configuration of the old device to the new device.
NOTICE
Do not remove or insert a C-PLUG / KEY-PLUG during operation!
A PLUG may only be removed or inserted when the device is turned off.
The device checks whether or not a PLUG is present at one second intervals. If it is
detected that the PLUG was removed, there is a restart. If a valid KEY-PLUG was inserted
in the device, the device changes to a defined error state following the restart. With
SCALANCE W, the available wireless interfaces are deactivated in this case.
If the device was configured at some time with a PLUG, the device can no longer be used
without this PLUG. To be able to use the device again, reset the device to the factory
settings.
When the new device starts up with the PLUG, it then continues automatically with exactly
the same configuration as the old device. One exception to this can be the IP configuration if
it is set using DHCP and the DHCP server has not been reconfigured accordingly.
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