NEN ISO/IEC 18000-4:2018 EN

Specifies the air interface for radio frequency identification (RFID) devices operating in the 2,45 GHz Industrial, Scientific, and Medical (ISM) band used in item management applications.

This document defines the air interface for radio frequency identification (RFID) devices operating
in the 2,45 GHz industrial, scientific, and medical (ISM) band used in item management applications.
This document provides a common technical specification for RFID devices that can be used by
ISO committees developing RFID application standards. This document is intended to allow for
compatibility and to encourage inter-operability of products for the growing RFID market in the
international marketplace. This document defines the forward and return link parameters for technical
attributes including, but not limited to, operating frequency, operating channel accuracy, occupied
channel bandwidth, maximum equivalent isotropically radiated power (EIRP), spurious emissions,
modulation, duty cycle, data coding, bit rate, bit rate accuracy, bit transmission order, and where
appropriate, operating channels, frequency hop rate, hop sequence, spreading sequence, and chip rate.
This document further defines the communications protocol used in the air interface.This document contains four modes. Mode 1 is an interrogator talks first with passive tag. Mode 2 is a tag
talks first with battery-assisted passive tag. Mode 3 is a globally available, ubiquitous network supporting
(but not limited to) the logistics and transportation industry; agnostic to any device, commercial or
otherwise, requiring global availability. Mode 4 is a configurable data rate active RFID system. It provides
the functions of long range objects identification and environmental sense, and it is intended to realize
the low cost device and low power consumption, long range identification, fast and reliable tags access.
The detailed technical differences between the modes are shown in the parameter tables.