Laird Controls North America Inc. 814A Manuale Utente
CommandPro
®
23 Series
User Manual
14
142133 Rev B
Figure 4: 23 Series receiver: 23R22
4.1 Receiver/Decoder
The receivers use an advanced synthesized FM Receiver designed to work in the presence of potential
interfering signals that might be encountered from pagers, cell phones, two way radios, etc. The
microprocessor-based decoder ensures a great deal of safety as well as versatility. Commands are received
on one of 81 possible frequencies and are checked against a 16-bit address code for proper identity and
further tested against a 10-bit CRC check. This ensures only valid information meant only for the particular
unit is decoded. The microprocessor contains a programmable memory that retains the frequency, address,
and particular operating parameters of the system.
The receiver uses robust 8 Amp relays to ensure long, reliable life of the system.
The receiver uses robust 8 Amp relays to ensure long, reliable life of the system.