Siemens SCALANCE W788-1PRO Operating Instructions Manual page 94

Note
When using iPCF, the following maximum data rates must be taken into accoun
when setting the access point:
Wireless standard
IEEE 802.11a/h
IEEE 802.11b
IEEE 802.11g
Background scan ch. select check box
Select this check box to restrict the number of channels on which the client
searches for an access point. This results in a reduction of handover times.
Restricting the channels on which a client searches f
factor in the reduction of handover times. To use this function, activate the
Background scan
operating in iPCF m
box.
Background scan channels text box
Here, enter the channels on which access points operating in iPCF mode can be
reached by the client. If you enter more than one channel, each channel must be
separated by a blank.
Transmit power list box
When using antennas, it may be necessary to reduce the transmit power to avoid
exceeding the legal maximum transmit power or to restrict the visibility of the radio
link. If necessary, select the required reduction in transmit power here.
A reduction of transmit power may also necessary to avoid interfering with other
cells because a reduced transmit power means a reduction in the span of the cell.
Antenna Mode list box
This list box specifies the use of the antennas.
If Diversity is set, the SCALANCE W78x uses the only antenna that allows the best
possible data transmission. For each WLAN interface, both antennas must be
connected. Both antennas should also be of the same type and they should also
illuminate approximately the same space. If an access point is operated with the
diversity setting and the two antennas span different cells, this can have negative
effects.
Otherwise, you must select the connected antenna. For the IWLAN-PB LINK,
select Antenna A (see 6.3.3 section Antennas).
Operating Instructions SCALANCE W78x
C79000-G8976-C184-07
Configuration Using the Wizards of Web Based Management
Max. data rate
12 Mbps
11 Mbps
12 Mbps
ch. select list box and enter the channels on which access points
ode can actually be reached in the Background scan channels
or an access point is a major
t
94