Contents
Installation & User Guide .........................................................................................................VIII
Chapter 1 System introduction ................................................................................................... 1
1.1 Overview ...................................................................................................................................................................... 1
1.2 Functions and features ................................................................................................................................................ 3
1.3 System technology ...................................................................................................................................................... 4
1.3.1 Basic system concept .................................................................................................................................................. 4
1.3.2 IR radiation .................................................................................................................................................................. 4
1.3.3 Carriers and channels ................................................................................................................................................. 4
1.4 Factors impacting infrared signal transmission ............................................................................................................ 5
1.4.1 Ambient lighting ........................................................................................................................................................... 5
1.4.2 Objects, surfaces and reflections ................................................................................................................................ 5
Chapter 2 Digital IR Wireless System Main Unit ........................................................................ 6
2.1 Overview ...................................................................................................................................................................... 6
2.2 Functions and indications ............................................................................................................................................ 7
2.3 Installation .................................................................................................................................................................... 9
2.4 Connection ................................................................................................................................................................. 10
2.4.1 To other auxiliary devices .......................................................................................................................................... 10
2.4.2 To recording device ................................................................................................................................................... 10
2.4.3 To speaker ................................................................................................................................................................ 10
2.4.4 To central control system .......................................................................................................................................... 11
2.5 Configuration and operation ...................................................................................................................................... 12
2.5.1 Mic Sens. .................................................................................................................................................................. 12
2.5.2 Line In Vol. ................................................................................................................................................................ 13
2.5.3 EQ Setting ................................................................................................................................................................. 13
2.5.4 Auto Fade .................................................................................................................................................................. 13
2.5.5 FB Suppress ............................................................................................................................................................. 13
2.5.6 Line In 1 Set. ............................................................................................................................................................. 14
2.5.7 Language .................................................................................................................................................................. 14
2.5.8 Factory Reset ............................................................................................................................................................ 14
2.5.9 About ......................................................................................................................................................................... 14
2.6 USB LINK .................................................................................................................................................................. 16
2.6.1 Installation of USB LINK ............................................................................................................................................ 16
2.6.2 Digital audio input ...................................................................................................................................................... 17
2.6.3 Digital audio output .................................................................................................................................................... 18
2.6.4 PPT-page switch ....................................................................................................................................................... 19
Chapter 3 Digital infrared receiver ............................................................................................ 20
3.1 Overview .................................................................................................................................................................... 20
3.2 Functions and indications .......................................................................................................................................... 20
3.3 Position planning ....................................................................................................................................................... 21
3.3.1 Precautions in planning the digital infrared receiver .................................................................................................. 21
3.3.2 Example for planning the receiver ............................................................................................................................. 22
3.4 Installation .................................................................................................................................................................. 23
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