Technical Manual

Technical Manual AM Systems
Terms and abbreviations v4.4 Page 2 of 72
Table of contents
Technical Manual AM Systems .................................................................................................. 1
1 Terms and abbreviations ...................................................................................................... 5
2 Introduction ........................................................................................................................... 6
2.1 Available AM systems ................................................................................................... 6
2.2 Field Bus Network structure .......................................................................................... 6
2.3 Visitor counting .............................................................................................................. 6
2.4 Restrictions and limitations ............................................................................................ 8
2.4.1 AM systems versus RF systems ....................................................................... 8
2.4.2 Model restrictions .............................................................................................. 8
2.4.3 Software restrictions .......................................................................................... 8
2.4.4 Detection distances ........................................................................................... 8
3 General AM and EAS issues ................................................................................................ 9
3.1 Noise sources ................................................................................................................ 9
3.2 Installation guidelines .................................................................................................... 9
4 Equipment and tools ........................................................................................................... 11
4.1 General installation tools ............................................................................................. 11
4.2 Laptop computer .......................................................................................................... 11
4.3 Software ...................................................................................................................... 11
5 AM operating principle ....................................................................................................... 12
5.1 Synchronization principle ............................................................................................ 13
6 Connections......................................................................................................................... 15
6.1 “A” and “B” side of the antenna ................................................................................... 15
6.2 How to access the electronic boards........................................................................... 16
6.3 Field Bus connections ................................................................................................. 17
6.3.1 Bus connections with laptop ............................................................................ 17
6.4 Field Bus termination ................................................................................................... 18
6.4.1 TRX bus termination ........................................................................................ 18
6.4.2 RX bus termination .......................................................................................... 18
6.5 Power supply unit AM systems ................................................................................... 19
6.6 Power supply specifications ........................................................................................ 20
6.7 Switching to a different mains voltage ......................................................................... 20
6.8 Power supply restrictions ............................................................................................ 20
6.8.1 Power supply for a single system (mono) ....................................................... 21
6.8.2 Power supply for a dual system ...................................................................... 21
6.8.3 Power supply for a triple system ..................................................................... 22
6.8.4 Power supply for large system setup .............................................................. 23