Service Manual

6802800U74-AN
Chapter 3: Site Preparation
70
Figure 12: Suggested Expansion Cabinet Site Layout
minimum
900mm
Service Area
minimum
800mm
rack
MTS 4
Prime Cabinet
Expansion
Cabinet
570mm
Minimum 25mm; 250mm guaranteed maximum
space between PrimeCabinet and Expansion Cabinet
NOTICE: Even though Figure 12: Suggested Expansion Cabinet Site Layout on page 70
illustrates the Expansion Cabinet to the right of the Prime Cabinet, the Expansion Cabinet can
also be placed on either side of the Prime Cabinet.
WARNING: Only use RF Cable Harness provided by Motorola when connecting the Prime
Cabinet to the Expansion Cabinet since cable length is critical.
3.3
Antenna Installation Considerations
When planning site for the RF system, consider proper antennas placement.
For full instructions and guidelines, see the Motorola Standards and Guidelines for Communications
Sites, R56 manual.
RF Antenna
Place the MTS equipment near to the existing cable tray or ladder rack for RF cabling.
GPS Antenna
Mount the GPS antenna below the tallest point on the tower, pole, or roof of the MTS site.
For systems in the northern hemisphere, mount the GPS antenna to maintain a clear view of the
southern sky. For systems in the southern hemisphere, mount the GPS antenna to maintain a clear
view of the northern sky.
For more information about GPS antenna installation and cabling, see GPS Antenna Connection on
page 129.
NOTICE: Each MTS in the system must be configured for the same GNSS System.
Surge Arrestors
To prevent potential damage to the MTS, install proper surge protection on all antennas.
To transport lightning strikes away from the equipment, install the lightning arrestors.
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