UNDER DEVELOPMENT
Page 3
Powering down before servicing
Always power down and unplug the equipment before servicing.
Lightning protection unit (LPU)
Hazardous voltages are present within the LPU. Do not remove the insulation tape or printed
circuit board when the LPU is connected to the power supply.
Primary disconnect device
The main power supply is the primary disconnect device.
External cables
Safety may be compromised if outdoor rated cables are not used for connections that will be
exposed to the outdoor environment.
Drop cable tester
The drop cable tester must NEVER be used at the ODU end connected to power from the PIDU.
It must only be used at the bottom of the mast with a multimeter. This is because the PIDU
voltage exceeds the limit allowed in some countries for safe handling in wet conditions and
therefore may create a safety hazard.
RF exposure near the antenna
Strong radio frequency (RF) fields will be present close to the antenna when the transmitter is
on. Always turn off the power to the ODU before undertaking maintenance activities in front of
the antenna.
Minimum separation distances
Ensure that personnel are not exposed to unsafe levels of RF energy. The units start to radiate as
soon as they are powered up. Never work in front of the antenna when the ODU is powered.
Install the ODUs so as to provide and maintain the minimum separation distances from all
persons. For minimum separation distances, see the
PTP 650 Series User Guide
.
Before connecting or disconnecting the drop cable from the PSU or ODU, always power down
the PSU.
Grounding and lightning protection requirements
Ensure that the installation meets the requirements defined in the
PTP 650 Series User Guide
.
