User's Manual

MPI 6000 Multi-Protocol Reader System Guide
5-8
Figure 5-3 Typical Plaza Configuration Using TDM
The frequency settings and the 9-millisecond TDM time slots were determined based
on a Title 21 tag transaction. For other installations, the frequencies and TDM dura-
tion need to be determined based on the type of transaction and expected vehicle
speeds for that installation. Figure 5-4 shows a timing diagram for the readers in each
of the time slots. Table 5-3 lists the settings for each reader in each time slot.
Figure 5-4 TDM Timing Diagram
PRELIMINARY