TABLE OF CONTENTS
1 GUARDIAN OVERVIEW ........................................................................................................................................... 9
1.1 General Description ............................................................................................................................................ 9
1.2 Operational Characteristics ............................................................................................................................... 9
1.3 Physical Description ......................................................................................................................................... 10
1.3.1 Front PanelThe front panel has the following connections: ........................................................................ 10
1.3.1 The front panel has the following connections: .......................................................................................... 11
1.3.2 LED Panel ................................................................................................................................................... 11
1.3.3 User Interface Port ...................................................................................................................................... 11
1.3.4 SETUP and COM Ports .............................................................................................................................. 12
1.3.5 Power Connector ........................................................................................................................................ 12
1.3.6 Antenna Connector ..................................................................................................................................... 13
1.3.7 Chassis Dimensions .................................................................................................................................... 13
1.4 Part Numbers and Availability ........................................................................................................................ 14
1.4.1 Guardian Radio ........................................................................................................................................... 14
1.4.2 Accessories and Options ............................................................................................................................. 14
1.5 Product Warranty ............................................................................................................................................ 15
1.6 RMA Request .................................................................................................................................................... 16
1.7 Documentation and Downloads ....................................................................................................................... 16
2 SYSTEM ARCHITECTURE AND NETWORK PLANNING ................................................................................. 17
2.1 Single Coverage Area ....................................................................................................................................... 17
2.2 Network Architecture ....................................................................................................................................... 17
2.2.1 Point-to-Point .............................................................................................................................................. 17
2.2.2 Point-to-Multipoint ..................................................................................................................................... 18
2.2.3 Multiple Point-to-Point ............................................................................................................................... 18
2.2.4 Peer-to-Peer ................................................................................................................................................ 18
2.2.5 Store and Forward ....................................................................................................................................... 18
2.2.6 Network Using a T-Base ............................................................................................................................. 18
2.2.7 NETWORK USING A T-BASE REPEATER ........................................................................................... 19
2.2.8 NETWORK USING A GUARDIAN FOR ONLINE DIAGNOSTICS ..................................................... 19
2.3 Extending the Coverage Area with a Relay Point .......................................................................................... 19
2.3.1 Understanding RF Path Requirements ........................................................................................................ 20
2.4 Site Selection and Site Survey .......................................................................................................................... 20
2.4.1 Site Selection .............................................................................................................................................. 20
2.4.2 Site Survey .................................................................................................................................................. 21
2.5 Selecting Antenna and Feedline ....................................................................................................................... 21
2.5.1 Antenna Gain .............................................................................................................................................. 21
2.5.2 Omni Directional Antenna .......................................................................................................................... 21
2.5.3 Yagi Antenna .............................................................................................................................................. 22
2.5.4 Vertical Dipoles .......................................................................................................................................... 22
2.5.5 Feedline ...................................................................................................................................................... 22
2.5.6 RF Exposure Compliance Requirements .................................................................................................... 22
2.6 Terrain and Signal Strength ............................................................................................................................ 23
2.7 Radio Interference ............................................................................................................................................ 24
3 Setup and Configuration ........................................................................................................................................... 25
3.1 Install the Antenna ........................................................................................................................................... 25
3.2 Measure and Connect Primary Power ............................................................................................................ 25
3.3 Connect Guardian to Programming PC ......................................................................................................... 25