Document version: V1.0
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2.3 Installations preparations
2.3.1 Safety precautions
Check the following working environment and installation requirements:
−During installation, wear ESD wrist straps or gloves. And the OLT should be powered
off.
−Please use the included power adapter/power cord.
−Ensure that the input voltage is within the input range indicated on the OLT.
−The device should be installed in a dry, cool place and at least have a 10 cm space
away from its surroundings at both sides for ventilation.
−The device should be located far away from the heat source or other sources of strong
electromagnetic interference (such as power lines, lights, power grid).
−Keep the air in the operating environment clean. Remove dust of the OLT regularly.
−Disconnect the power supply before cleaning the OLT. Do not clean the OLT with any
liquid.
−Do not open the chassis of the OLT.
−Do not place heavy objects on the OLT.
2.3.2 Preparations before installations
−Ensure that the related cables (such as optical fibers, Ethernet cables, grounding
cables) are properly routed.
−Ensure that the cable and connectors used for installation are normal.
−If the OLT adopts rack mounting method, ensure that you have prepared the
necessary mounting screws, nuts and tools (such as ladders, screwdrivers).
−If the OLT adopts DC power supply mode, prepare cables for connecting the -48 V DC
power supply to the -48 V DC power input port of the OLT device (two cables for
connecting the positive and negative terminals of the power supply respectively).
−Prepare the following items to connect to the OLT for network connectivity and
network management checks:
⚫A management platform, such as a computer
⚫RJ45/DB9 RS232 Console line
⚫Universal USB Type-C cable (for Console management)