User's Manual

CSL CS469-2 EPC CLASS 1 GEN 2 RFID FIXED READER USER'S MANUAL, VERSION 0.0

5.2 Maximum Permissible Exposure (MPE)

5.2.1 Introduction

This section has been prepared on behalf of CSL FHSS RFID Device to show compliance with

the RF exposure requirements as defined in FCC §1.1307.

5.2.2 Requirements

Three different categories of transmitters are defined by the FCC in OET Bulletin 65. These

categories are fixed installation, mobile, and portable and are defined as follows:

 Fixed Installations: fixed location means that the device, including its antenna, is

physically secured at a permanent location and is not able to be easily moved to another

location. Additionally, distance to humans from the antenna is maintained to at least 2

meters.

 Mobile Devices: a mobile device is defined as a transmitting device designed to be used

in other than fixed locations and to be generally used in such a way that a separation

distance of at least 20 centimeters is normally maintained between the transmitter's

radiating structures and the body of the user or nearby persons. Transmitters designed to

be used by consumers or workers that can be easily re-located, such as a wireless modem

operating in a laptop computer, are considered mobile devices if they meet the 20

centimeter separation requirement. The FCC rules for evaluating mobile devices for RF

compliance are found in 47 CFR §2.1091.

 Portable Devices: a portable device is defined as a transmitting device designed to be

used so that the radiating structure(s) of the device is/are within 20 centimeters of the

body of the user. Portable device requirements are found in Section 2.1093 of the FCC's

Rules (47 CFR§2.1093).

This CSL RFID device with 5dBiC antenna (CS771S-2) is considered a fixed installation as it

is used for the purpose of reading tags.

The FCC also categorizes the use of the device as based upon the user’s awareness and ability

to exercise control over his or her exposure. The two categories defined are Occupational/

Controlled Exposure and General Population/Uncontrolled Exposure. These two categories

are defined as follows: