ABSTRACT
This chapter explores some of the protocols used for linking interrogators with the host computers using as examples the different protocols employed by some interrogators manufactured by Texas Instruments. It describes the TIRIS Bus Protocol, developed by Texas Instruments. The TIRIS protocol can distinguish between two groups of transponder identification: animal code numbers and industrial code numbers. The chapter examines how the ASCII protocol is used in some commercial interrogators. It explains the protocol used in some low frequency (LF) interrogators manufactured by Texas Instruments. The Series 2000 RFID interrogators operate in the LF range. The chapter also describes the communication protocols used in interrogators operating in the high frequency (HF) range. The Series 6000 Reader System interrogators are radiofrequency identification (RFID) interrogators operating in the HF band, manufactured by Texas Instruments. These interrogators use a RS232 line to communicate with the host computer. The interrogators are also able to distinguish between three types of transponders: read-only, read/write, and multipage.
