Installation Guide
Table Of Contents
- 1. INTRODUCTION
- 2. UNPACKING AND CHECKING
- 3. PREVIOUS CONSIDERATIONS
- 4. INFORMATION ON SAFETY AND ELECTROMAGNETIC COMPATIBILITY
- 4.1 GENERAL CONSIDERATIONS ABOUT SAFETY
- 4.2 OPERATION AND EXPOSURE TO RF ENERGY
- 4.3 IMPORTANT SAFETY NOTES ABOUT THE ANTENNA
- 4.4 ELECTROMAGNETIC COMPATIBILITY REGULATORY INFORMATION (FCC AND ISED)
- 4.5 UL / SAFETY CERTIFICATIONS
- 4.6 EMC, SAFETY AND RF EXPOSURE STANDARDS
- 4.7 MECHANICAL AND ENVIRONMENTAL STANDARDS
- 5. EQUIPMENT DESCRIPTION
- 6. INSTALLATION GUIDE
- 6.1 NECESSARY EQUIPMENT
- 6.2 BASIC PRE-CONFIGURATION
- 6.3 INSTALLATION
- 6.3.1 MAST/POLE INSTALLATION
- 6.3.2 WALL INSTALLATION
- 6.3.3 PBS ACCESSORY INSTALLATION
- 6.3.4 ANTI-VANDAL KIT INSTALLATION
- 6.3.5 REQUIREMENTS TO CONSIDER DURING THE ANTENNA INSTALLATION
- 6.3.6 CONNECTIONS
- 6.3.6.1 SUPPORTED CONFIGURATIONS
- 6.3.6.1.1 ONE MBS UNIT WITH DIVERSITY 1 IN RECEPTION
- 6.3.6.1.2 ONE MBS UNIT WITH DIVERSITY 2 IN RECEPTION
- 6.3.6.1.3 TWO MBS UNIT (SAME SUBBAND) WITH DIVERSITY 1 OR 2 IN RECEPTION
- 6.3.6.1.4 TWO MBS UNITS (DIFFERENT SUBBANDS) WITH DIVERSITY 1 IN RECEPTION
- 6.3.6.1.5 TWO MBS UNITS (DIFFERENT SUBBANDS) WITH DIVERSITY 2 IN RECEPTION
- 6.3.6.2 CONNECTION OF THE EXTERNAL POWER SUPPLY
- 6.3.6.3 ANTENNA CONNECTION
- 6.3.6.4 EXTERNAL ETHERNET CONNECTION
- 6.3.6.1 SUPPORTED CONFIGURATIONS
- 6.3.7 CONNECTING / DISCONNECTING THE MBS AC MAINS SUPPLY
- 6.3.8 CONNECTING / DISCONNECTING THE MBS FROM THE DC SUPPLY
- 7. START UP/CONFIGURATION/VERIFICATION
- 8. INCIDENTS
TETRA MBS UNIT. INSTALLATION GUIDE
F067646PT_2801
Page 40 of 62
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- Place the padlock and screw the attachment bolt to the bracket with a 0.67 in wrench and 25 Nm
torque.
6.3.5 REQUIREMENTS TO CONSIDER DURING THE ANTENNA INSTALLATION
The antennas installation always will depend on TX frequencies assigned to each MBS Units that are part of
a MBS.
As a general rule, the frequencies assigned to the MBS Units of each MBS shall comply with the following
restrictions:
Sub-band.
When the MBS Units belong to the same band, these must belong to the same sub-band. Otherwise, the
duplexer TX and RX filters do not provide the necessary insulation. For example, you should not combine a
MBS Unit with 390-395 MHz TX subband with another with 395-400 MHz TX subband.
Frequency spacing:
∆f ≠ DS/n
∆f ≠ DS/n ± 25 KHz
If DS/n is not a multiple of 25 KHz, take the multiple of 25 KHz nearest lower value to DS/n and its 2 adjacent
channels (± 25 KHz).
Where:
∆f is the TX frequency spacing between the MBS Units.
DS is the duplex spacing,
n is an integer number.
If the MBS Units are combined into one antenna, will be mandatory fulfill the restrictions listed above.
If each MBS Unit has its own antenna, there are several possible cases depending on the level of
compliance with the foregoing restrictions: