i
Contents 
CHAPTER 1  GENERAL DESCRIPTION .....................................................................................1-1 
1.1  IRRInet-XL - RTU Wall Mount and Housing Options..........................................................1-1 
1.2  RTU Models ..........................................................................................................................1-4 
1.3  I/O & Communication Modules............................................................................................1-5 
1.4  Power Supply and Backup Battery Options .......................................................................1-6 
CHAPTER 2  INSTALLATION......................................................................................................2-1 
2.1  Before Mounting the RTU ....................................................................................................2-1 
2.2  Wall Mounting of RTU Without Housing Enclosure...........................................................2-2 
2.3  Wall Mounting of RTU in NEMA4X Housing Enclosure .....................................................2-3 
2.4  Wall Mounting of RTU with NEMA4 Housing Enclosure....................................................2-4 
2.5  Electrical Connections.........................................................................................................2-5 
2.5.1  Ground Connection...........................................................................................................2-5 
2.5.2  Main Power Connections..................................................................................................2-6 
2.5.3  Electrical Connections For 8 Ampere Power Supply .........................................................2-8 
2.5.4  8 Ampere Power Supply Field Replaceable Parts...........................................................2-11 
2.5.5  Electrical Connections for 45 VA Power Transformer .....................................................2-11 
2.5.6  45 VA Transformer Field Replaceable Parts...................................................................2-14 
2.6  Backup Battery Connections.............................................................................................2-14 
2.6.1  5AH Backup Battery .......................................................................................................2-14 
2.6.2  5AH Backup Battery Field Replaceable Parts.................................................................2-15 
2.6.3  3AH Backup Battery .......................................................................................................2-16 
2.6.4  3AH Backup Battery Field Replaceable Parts.................................................................2-16 
2.7  Radio Connections.............................................................................................................2-17 
2.7.1  Mobile Radio...................................................................................................................2-17 
2.7.2  Mobile Radio Field Replaceable Parts ............................................................................2-18 
2.7.3  Portable Radios..............................................................................................................2-19 
2.7.4  Portable Radio Field Replaceable Parts .........................................................................2-21 
2.8  RTU Configuration Block Diagrams..................................................................................2-22 
2.8.1  Basic Interconnection Block Diagram..............................................................................2-22 
2.8.2  Connecting the RTU by Wire Line...................................................................................2-23 
2.8.3  Connecting the RTU by Single Mobile Radio ..................................................................2-24 
2.8.4  Connecting the RTU by Two Separate Mobile Radios ....................................................2-25 
2.9  Installation of Plug-in Modules and Units.........................................................................2-26 
2.10  Module Replacement........................................................................................................2-27 
2.10.1  Removing the Power Supply Module ............................................................................2-27 
2.10.2  Installing the Power Supply Module ..............................................................................2-27 
2.11  Radio Antenna Placement ...............................................................................................2-28 
2.12  IRRInet-XL Field Replaceable Parts ................................................................................2-29