CommScope e-POI, Руководство по установке

Страница: 44 / 86

ERA® WCS and e-POI Subracks and Power Supply Unit Installation Guide M0201ABK_uc
Page 44 © June 2021 CommScope, Inc.
Safely Working with ERA Hardware
General Installation Safety Requirements
Guard Against Damage from Electro-Static Discharge
Compliance
1 Notice:
For installations, which have to comply with FCC RF exposure requirements, the antenna
selection and installation must be completed in a way to ensure compliance with those FCC requirements.
Depending on the RF frequency, rated output power, antenna gain, and the loss between the repeater and
antenna, the minimum distance D to be maintained between the antenna location and human beings is
calculated according to this formula:
where
•
P (mW) is the radiated power at the antenna, i.e. the max. rated repeater output power in addition to
the antenna gain minus the loss between the repeater and the antenna.
•
PD (mW/cm²) is the allowed Power Density limit acc. to 47 CFR 1.1310 (B) for general population /
uncontrolled exposures which is
–
f (MHz) / 1500 for frequencies from 300MHz to 1500MHz
–
1 for frequencies from 1500MHz to 100,000MHz
RF exposure compliance may need to be addressed at the time of licensing, as required by the responsible
FCC Bureau(s), including antenna co-location requirements of 1.1307(b)(3).
Wet conditions increase the potential for receiving an electrical shock when installing or using electrically
powered equipment. To prevent electrical shock, never install or use electrical equipment in a wet
location or during a lightning storm.
Do not remove protective caps from any of the connectors until instructed to do so.
Due to power dissipation, the Power Supply Units may reach a very high temperature if not properly
ventilated. Do not operate this equipment on or close to flammable materials.
Never operate a WCS-2 or WCS-4 Subrack without a Fan Tray installed.
This system is a RF Transmitter and continuously emits RF energy. Maintain a minimum eight-inch (20 cm)
clearance from the antenna while the system is operating. Whenever possible, shut down the RAN before
servicing the antenna.
Electro-Static Discharge (ESD) can damage electronic components. To prevent ESD damage, always wear
an ESD wrist strap when working with hardware components. Not all ERA hardware requires grounding.
For those ERA hardware components for which grounding is required, connect the ground wire on the
ESD wrist strap to an earth ground source before touching the component. Wear the wrist strap the entire
time that you work with the ERA hardware.
] / [
] [
] [
2
4
cm mW
mW
cm
PD
P
D
 

