Chapter 1: Introduction
Copyright © 2009, Impinj, Inc. 4
Supported Communication Protocol
For client control of the reader, Speedway/R supports the EPCglobal Low Level Reader
Protocol (LLRP) v1.0.1. LLRP is an EPCglobal standard interface that allows communi-
cation with the reader and with EPCglobal Generation 2 (Gen 2) RFID tags.
Antenna Requirements
Depending on the reader model you are installing, Speedway/R is equipped with two
(R220) or four (R420) monostatic antenna ports (independent, bidirectional, and full
duplex TX/RX).
Antenna requirements vary by regulatory region. For details about the requirements in a
specific region, see the relevant antenna section in “Appendix A: Information Specific to
Regions of Operation” on page 19.
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