INTERCOM TALK BACK SYSTEM
4
Warnings and Precautions
1.Read all of these warnings and save them
for later reference.
2.Follow all warnings and instructions
marked on this unit.
3.Unplug this unit from the wall outlet before
cleaning. Do not use liquid or aerosol
cleaners. Use a slightly damp cloth for
cleaning.
4.Do not use this unit in or near water.
5.Do not place this unit on an unstable
surface, cart, stand, or table. The unit
may fall, causing serious damage.
6.Any slots and openings on the case
top, back, and bottom are provided for
ventilation. To ensure safe and reliable
operation of this unit, and to protect it
from overheating, do not block or cover
these openings. Do not place this unit
on a bed, sofa, rug, or similar surface,
as the ventilation openings may become
blocked. This unit should never be placed
near or over a heat source or radiator.
This unit should not be placed in a built-
in installation unless proper ventilation is
provided.
7.This product should only be operated from
the type of power source indicated on the
marking label of the AC adapter. If you are
not sure of the type of power available,
consult your Datavideo dealer or your
local power company.
8.Do not allow anything to rest on the power
cord. Do not locate this unit where the
power cord will be walked on, rolled over,
damaged or otherwise stressed.
9.If an extension cord must be used with
this unit, make sure that the total of the
ampere ratings on the products plugged
into the extension cord do not exceed the
extension cord’s rating.
10.Make sure that the total amperes of all
the units that are plugged into a single
wall outlet do not exceed 15 amperes.
11.Never push objects of any kind into this
unit through the case ventilation slots,
as they may touch dangerous voltage
points or short out parts that could result
in risk of fire or electric shock. Never spill
liquid of any kind onto or into this unit.
12.Except as specifically explained
elsewhere in this manual, do not attempt
to service this product yourself. Opening
or removing covers that are marked
“Do Not Remove” may expose you
to dangerous voltage points or other
risks, and will void your warranty. Refer
all service issues to qualified service
personnel.
13.Unplug this product from the wall outlet
and refer to qualified service personnel
under the following conditions:
a.When the power cord is damaged or
frayed;
b.When liquid has spilled into the unit;
c.When the product has been exposed
to rain or water;
d.When the product does not operate
normally under normal operating
conditions. Adjust only those controls
that are covered by the operating
instructions in this manual; improper
adjustment of other controls may result
in damage to the unit and may often
require extensive work by a qualified
technician to restore the unit to normal
operation;
e.When the product has been dropped
or the case has been damaged;
f.When the product exhibits a distinct
change in performance, indicating a
need for service.
