User's Manual

12.1.6.1
Electrical Ground
Ground wires carrying electrical current from circuitry or equipment at the site is included in the
category of electrical ground. Examples include the AC or DC electrical power used to source
equipment located at the site, and wires or cables connected to alarms or sensors located at the site.
12.1.6.2
RF Ground
This type of ground is related to the bypassing of unwanted radio frequency energy to earth ground. An
example of RF grounding is the use of shielding to prevent or at least minimize the leakage of
unwanted RF energy from communications equipment and cables.
12.1.6.3
Lightning Ground
Providing adequate lightning protection is critical to a safe reliable communications site. RF
transmission cables, and AC and DC power lines must all be protected to prevent lightning energy from
entering the site.
Comprehensive coverage of site grounding techniques and lightning protection is not within the scope
of this instruction manual, but there are several excellent industry sources for rules and guidelines on
grounding and lightning protection at communications sites.
NOTICE: Motorola Solutions recommends the following reference source:
Motorola Solutions Quality Standards Fixed Network Equipment Installation Manual R56: (which
can be obtained by ordering CDROM 9880384V83).
12.1.6.4
Equipment Grounding
The SLR 5000 Series Repeater is equipped with a ground screw on the rear of the repeater power
supply module. This screw is used to connect the repeater to the site grounding. All antenna cables,
and AC and DC power cabling, should be properly grounded and lightning protected by following the
rules and guidelines provided in the previous sections. Failure to provide proper lightning protection
may result in permanent damage to the repeater.
12.1.7
Recommended Tools and Equipment
In addition to the typical compliment of hand tools, the following tools and equipment are
recommended for proper installation of the repeater equipment.
• Tarpaulin or plastic drop cloth or cover surrounding equipment while drilling concrete anchor holes
(for installations where cabinet or rack is being anchored to concrete).
• Vacuum cleaner for removing concrete dust caused by drilling.
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Chapter 12: SLR 5000 Series Installation
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