User Manual

Library Security Pedestal 2
28/62 Revision 4.2 July 2008
3- Slave2 scan the configured chip, and then send the synchronization burst back to the
master.
This process is repeated in an infinite loop mode.
In case of the master does not receive back the synchronization burst from the last slave after a
defined period, it will automatically restart the synchronization process.
5.2.3 Wireless Synchronization
The L-SP2 is provided with a wireless synchronization system, however slaves too far from
the Master pedestal cannot be reached and the air synchronization signal is not transmitted to the
slaves pedestal, in this case synchronization by wire is mandatory.
When more than two pedestals are installed, it is recommended to install the Master in the middle
of the slave’s line for a better propagation and detection of the air synchronization burst.
Figure 12 below shows an example of optimal configuration.
Figure 12: Configuration sample
In this particular mode we recommend to install a maximum of 3 pedestals in order to avoid
deteriorating the Tscan duration described in section 5.1”Chip Configuration”.
In Standard Synchronization mode, section 5.2.1, if more than 5 pedestals are to be installed
or distance between pedestals exceeds the recommendation of section 4.3.2 “Placement of
Pedestals”, wire synchronization is mandatory.