Siemens IEEE802.11 Instructions d'exploitation Page 268

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Configuring with Web Based Management
5.10 "iFeatures" menu
SCALANCE W770/W730 to IEEE 802.11n Web Based Management
268 Configuration Manual, 11/2014, C79000-G8976-C323-03
Description
The page contains the following boxes:
"Enable iPCF-MC" check box
Enable or disable the iPCF-MC mode of the device.
For PNIO communication, we recommend enabling the iPCF-MC mode. By enabling
iPCF-MC, the data rates provided by the access point are adapted.
We strongly recommend that you retain the default setting for the data rates (802.11 a/b/g
= 6, 9 and 12 Mbps and 802.11n = MCS 2).
"iPCF Cycle Time" drop-down list
(only in access point mode)
Select the PNIO update time configured for the network to which the access point is
connected. The lowest value for the update time is 32 ms.
"Management Scan Period" drop-down list
(only in client mode)
This parameter specifies the time between two client management channel scans
(specified in iPCF cycles). If, for example, you select two, the client runs a management
channel scan only in every second iPCF cycle.
A lower value for the scan interval provides the basis for fast roaming, however this
means that no high data throughput can be achieved. A higher value should be selected
for a high data throughput.
5.10.3
iREF
Note
This tab is available only in access point mode.
This WBM page can only be configured with the following KEY-PLUG:
Access point: W780 iFeatures (MLFB 6GK5 907-8PA00)
When should iREF be used?
With iREF, the data can be sent with the highest possible transmit power. This applies in
particular to use cases in which MIMO cannot be used, is of no advantage or when using
sector antennas.
Note
Use of iREF with other iFeatures
iREF and other iFeatures (e.g. iPCF, iPCF
-MC) are not compatible with each other and
cannot be used at
the same time on a device.
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