Safety information, Installation recommendations – NEXCOM NCr-302-VHR User Manual
Page 7

Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved.
vii
Preface
NCr-302-VHR User Manual
Warnings
Read and adhere to all warnings, cautions, and notices in this guide and 
the documentation supplied with the chassis, power supply, and accessory 
modules. If the instructions for the chassis and power supply are inconsistent 
with these instructions or the instructions for accessory modules, contact 
the supplier to find out how you can ensure that your computer meets 
safety and regulatory requirements. 
Cautions
Electrostatic discharge (ESD) can damage system components. Do the 
described procedures only at an ESD workstation. If no such station is 
available, you can provide some ESD protection by wearing an antistatic 
wrist strap and attaching it to a metal part of the computer chassis. 
Safety Information
Before installing and using the device, note the following precautions:
▪ Read all instructions carefully.
▪ Do not place the unit on an unstable surface, cart, or stand.
▪ Follow all warnings and cautions in this manual.
▪ When replacing parts, ensure that your service technician uses parts
specified by the manufacturer.
▪ Avoid using the system near water, in direct sunlight, or near a heating
device.
▪ The load of the system unit does not solely rely for support from the
rackmounts located on the sides. Firm support from the bottom is highly 
necessary in order to provide balance stability. 
▪ The network camera is provided with a battery-powered real-time clock
circuit. There is a danger of explosion if battery is incorrectly replaced. 
Replace only with the same or equivalent type recommended by the 
manufacturer. Discard used batteries according to the manufacturer’s 
instructions.
Installation Recommendations
Ensure you have a stable, clean working environment. Dust and dirt can get 
into components and cause a malfunction. Use containers to keep small 
components separated. 
Adequate lighting and proper tools can prevent you from accidentally 
damaging the internal components. Most of the procedures that follow 
require only a few simple tools, including the following: 
▪ A Philips screwdriver
▪ A flat-tipped screwdriver
▪ A grounding strap
▪ An anti-static pad
Using your fingers can disconnect most of the connections. It is recommended 
that you do not use needle-nose pliers to disconnect connections as these 
can damage the soft metal or plastic parts of the connectors.
