I

IBM Corporation, 259

ICNIRP (International Commission on Non-ionizing Radiation Protection), 246

ICOH (International Commission on Occupational Health), 246

ICs in tags, 93

IEC (International Electrotechnical Commission), 234

ILO (International Labour Organization), 246

impedance

antenna, 4

cable, 135

impedance matches

cable, 132, 132

tags, 93

Impinj, Inc., 260

in-bound doors, readings at, 190

inductive coupling

in passive systems, 120

for tag communication, 83–85, 84

Industrial, Scientific, and Medical (ISM) band, 12, 59

infrastructure analysis checklists, 182

installation

printers, 149–151

system. See deployment and installation

integrated tags, 98

interference

with coaxial cable, 132

in site analysis, 64

in tag placement, 105

troubleshooting, 207–210, 209

in UHF systems, 127

of waves, 6–9

Intermec Technologies Corporation, 260–261

intermodulation, 59

International Commission on Non-ionizing Radiation Protection (ICNIRP), 246

International Commission on Occupational Health (ICOH), 246

International Electrotechnical Commission (IEC), 234

International Labour Organization (ILO), 246

International Organization for Standardization (ISO), 90, 231–234

international standardization organizations

IEC, 234

ISO, 231–234

ITU, 234–235

UPU, 235–236

International Telecommunication Union (ITU), 234–235

interrogation zones, 23–25

antenna performance, 34–40, 35, 37

anticollision mechanisms, 42–43

dense reader mode, 40–41

dwell time, 34, 35

exam essentials, 45–46

interrogators

communication in, 29–30

construction, 25

dumb readers vs. smart readers, 28

firmware upgrades, 31

I/O capability, 26–27

read/write capability, 26

tag population management, 30–31

types, 32–34

user interface, 27–28

key terms, 47

review questions, 48–53

shielding, 40

summary, 43–44

synchronization, 41

intersecting waves, 6–7

Inventory command, 31

I/O capability in interrogators, 26–27

IP addresses

interrogators, 27

printers, 153

readers, 178

ISM (Industrial, Scientific, and Medical) band, 59

ISO (International Organization for Standardization), 90, 231–234

isolation steps in troubleshooting, 216–217

ITU (International Telecommunication Union), 234–235