User Manual

28/68 Revision 2.1 December 2009
5 Configuration
All configuration operations of L-SP3 systems are carried on with the L-SP3 Configuration Utility
Software.
5.1 Chip Configuration
For optimal performance the scanning duration (T_scan) should not exceed 250ms. T_scan
is the period to scan all pedestals of a group of N pedestals, i.e. a Master and (N-1) Slave
Pedestals. Depending on your chip configuration and the number of pedestals installed you can
determine the scanning duration of your installation.
5.1.1 Scanning duration per pedestal
Table 3: Scanning Duration No Tag in field
Duration per pedestal
in ETSI mode (ms)
Duration per pedestal
in FCC mode (ms)
Synchronization process
10 10
C370/-L, Tag-It, ISO15693 EAS or one AFI,
detection only
20 100
C220/C320 EAS detection only
15 15
The scanning duration per pedestal will vary according to the configuration you selected. The
scanning duration will always include the synchronization process of 10ms.
Example 1: with a system using the 370-AFI in ETSI mode.
The scanning duration per pedestal will be: T_single _scan = (10ms+20ms) = 30ms
Example 2: with a system using the 370-AFI1-AFI2 in ETSI mode.
The scanning duration per pedestal will be: T_single _scan = (10ms+20ms+20ms) = 50ms
Example 3: with a system using the 370-EAS + C320-EAS in ETSI mode.
The scanning duration per pedestal will be: T_single _scan = (10ms+20ms+15ms) = 45ms
5.1.2 Global scanning duration
The global scanning duration (T_scan) will depend on the synchronization mode you have
selected. Hardwired synchronization is faster than wireless synchronization.
Table 4: Global scanning duration versus Synchronisation mode
Example 4: with a 4 pedestals system using 370-AFI1-AFI2 in ETSI mode.
The global scanning duration will be: T_scan = 50ms x 4 = 200ms if used hardwired.
The global scanning duration will be: T_scan = 50ms x ((2 x 4) – 2) = 300ms if used wireless.
Synchronization Mode T_scan
Hardwired = T_single_scan x Nb_Pedestals
Wireless
= T_single_scan x
((2 x Nb_Pedestals) – 2)