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NX25 Pre-installation Manual
About this manual
This manual provides information about preparing for the delivery and installation of an NX25 transmitter. This manual is intended for use by field technicians, site managers, and installation planners.
Using this manual
Read the task list provided in Section 2, “Pre-installation tasks” on page 2-1 . The task list describes the preparations you must make prior to receiving and installing the NX25 transmitter.
Later sections of the manual provide reference information regarding physical, cooling, electrical, and antenna requirements.
Technical support
Nautel offers technical support to customers over the Internet and by telephone. Nautel’s customer support team will answer your questions and work with you to identify and resolve problems.
For 24-hour technical support, call toll free at 1.877.628.8353 (in USA and Canada only) or call
1.902.823.5100 (international) or find us on the Internet at http://www.nautel.com
.
For parts and tools information, see “Parts and tools” on page 9-1 of the
NX25 Pre-Installation
Manual .
For extended warranty information, see “Pre-installation assistance” on page 10-1 of the
NX25 Pre-Installation Manual .
Issue 3.2 2016-02-08 Page xi
NX25 Pre-installation Manual
NX25 transmitter manuals
The NX25 documentation suite includes the following documents:
NX25 Pre-installation Manual, NX25-PREINST.
Provides instructions and reference information needed when planning and preparing for the installation of an NX25 transmitter.
Nautel Site Protection Manual.
Provides detailed information about protecting your site from lightning-related hazards.
NX25 Installation Manual, NX25-INST.
Provides instructions and reference information needed when installing an NX25 transmitter.
NX25 Operating and Maintenance Manual, NX25-OPS-MAINT.
Provides instructions for operating, maintaining and troubleshooting an NX25 transmitter. It also provides reference information needed when performing diagnostic procedures.
NX25 Troubleshooting Manual, NX25-TROUBLE.
Provides detailed technical information about the NX25 transmitter, including electrical schematics and mechanical drawings.
Nautel website / Online resources
The Nautel website provides useful resources to keep you up to date on your NX25.
Nautel User Group (NUG)
The website includes a special section that customers can log into in order to access the Nautel customer newsletter, product manuals, frequently asked questions (FAQ), information sheets, quick guides and information about field upgrades.
Page xii Issue 3.2 2016-02-08
NX25 Pre-installation Manual
Figure 3.1: Accessing the NUG www.nautel.com
TOP BANNER OF NAUTEL’S HOME
NUG SIGN-IN
Documentation: online and printed
The website’s NUG section provides online access to all the documentation for your NX25.
Documentation is provided in Acrobat (PDF) format. You can use the documentation online or print the sections that you need.
When using online documents:
• Click on the blue hyperlinks to jump to a related section, or to get additional information
(e.g., view a term’s definition).
• To search a document to find keywords, use Find in Acrobat Reader’s Edit menu.
• To quickly find a specific section, click the section in the PDF file’s Bookmarks list.
Issue 3.2 2016-02-08 Page xiii
NX25 Pre-installation Manual
When using printed documents:
• To find keywords, go to the Index section at the end of the manual.
• To find a specific term, go to the List of Terms section near the end of the manual.
Page xiv Issue 3.2 2016-02-08
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Table of contents
- 9 Release control record
- 11 About this manual
- 12 Nautel User Group (NUG)
- 15 About Safety
- 15 Electrical Hazards
- 16 Lightning Hazards
- 16 RF Hazards
- 16 Toxic Hazards
- 16 Other Hazards
- 17 Safety Precautions
- 17 Personal Safety
- 17 Training
- 17 Site Orientation
- 18 Voltage Awareness
- 18 First Aid
- 18 Site Safety
- 18 Controlling Access
- 19 Marking Hazards
- 19 Qualifying Site Personnel
- 19 Ac Power Protection
- 19 RF Protection
- 20 Safety Interlocks
- 20 Ac Disconnect Switch
- 20 Equipment Safety
- 20 Electrostatic Protection
- 20 Surge Protection
- 20 Lightning Protection
- 21 Physical Protection
- 21 Earthquake Protection
- 23 Section 1: Description
- 23 Capabilities
- 23 Power
- 23 Modulation
- 23 Antenna tolerance
- 24 Remote control and monitoring
- 24 Redundancy
- 24 Ac power
- 25 Options
- 25 IBOC
- 25 DRM
- 25 Open/closed air cooling
- 25 GPS Sync Card
- 25 USB sound card
- 25 Spares
- 27 Section 2: Pre-installation tasks
- 27 Preparing for installation
- 29 Selecting a location for the transmitter
- 29 Installing an antenna feedline
- 31 Section 3: Physical requirements
- 31 Dimensions
- 32 Clearances
- 37 Weight
- 39 Section 4: Cooling requirements
- 39 Air flow in the transmitter
- 39 Open air configuration
- 40 Closed air configuration
- 41 Cooling
- 41 Cooling plant requirements
- 42 Closed loop or forced air cooling systems
- 42 Heating
- 43 Section 5: Electrical requirements
- 43 Electrical power
- 43 Voltage stability
- 43 Power consumption
- 43 Ac wiring
- 45 Ac power switch
- 45 Ac transient power protection
- 46 Station reference ground
- 47 Section 6: RF output requirements
- 47 Antenna feed cable
- 47 Maximum voltage
- 47 High voltage feed throughs
- 48 Small radius conductors
- 48 Feedline testing
- 49 Antenna system
- 51 Section 7: Planning audio inputs
- 51 Analog inputs
- 51 Balanced (mono)
- 52 AES/EBU
- 52 Digital inputs
- 52 IBOC
- 52 DRM
- 53 Other considerations
- 53 Frequency synchronization signals
- 53 Audio Player via USB
- 53 DRM Simulcast
- 55 Section 8: Planning control/monitor connections
- 55 AUI control (local and remote)
- 56 External system interlock
- 58 External PDM inhibit
- 59 Remote inputs
- 61 External switching circuit requirements
- 62 Backup control switches
- 62 Remote input connections
- 63 Remote outputs
- 63 LED configuration
- 63 Remote output connections
- 66 Analog outputs
- 66 Analog output connections
- 67 Web based control
- 67 Remote Access
- 68 SNMP Control/Monitoring
- 68 Email Server
- 68 Nautel Phone Home
- 71 Section 9: Parts and tools
- 71 Contacting Nautel
- 71 Parts supplied by Nautel
- 71 Ancillary parts kit
- 72 Documentation
- 72 Parts not supplied by Nautel
- 72 Parts ordering
- 72 Module replacement program
- 73 Tools for installation
- 75 Section 10: Pre-installation assistance
- 75 Pre-installation consulting
- 75 Installation and commissioning service
- 76 Online documentation
- 77 On-site support
- 77 Training
- 78 NX series on-site or factory training
- 78 Extended warranties
- 78 Coverage
- 79 Purchasing a one- or two-year Extended Warranty Plan
- 79 Using the Extended Warranty Plan
- 81 SECTION 11: List of terms