PMP Synchronization Solutions User Guide Installing the CMM5PMP-0297 007v001 (January, 2017) 2-35Installing the CMM5Ensure that you comply with standard local or national electrical and climbing procedureswhen you install the CMM5.WARNING!Installing a CMM involves electrical power and can involve height andexposure to RF (Radio Frequency) energy. To avoid personal injury,know and follow applicable national and local safety regulations andindustry best practices, and follow the specific guidelines in thisdocumentAvoiding HazardsUse simple precautions to protect staff and equipment. Hazards include exposure to RFwaves, lightning strikes, power lines, and power surges. This section specificallyrecommends actions to abate these hazards.Grounding EquipmentEffective lightning protection diverts lightning current safely to ground, Protective Earth(PE) . It neither attracts nor prevents lightning strikes.Grounding Infrastructure EquipmentTo protect both your staff and your infrastructure equipment, implement lightningprotection as follows:Observe all local and national codes that apply to grounding for lightning protection.Before you install your modules, perform the following steps:• Engage a grounding professional if you have any questions on grounding.• Install lightning arrestors to transport lightning strikes away from equipment. Forexample, install a lightning rod on a tower leg other than the leg to which you mountyour module.• Connect your lightning rod to ground.• Plan to use an appropriate surge suppressor on any Ethernet cable at the point where itenters any building or structure.Install your modules at least 2 feet (0.6 meters) below the tallest point on the tower, pole, orroof.