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5. SAFETY CONSIDERATIONS
Warning:
Use of this unit in a manner other than specified in this manual may impair the pro-
tection of the unit and subject the user to a hazard. Do not attempt to operate if the unit shows
visible damage.
Cautions:
This unit may be powered from 85-264 Vac with the worldwide voltage power supply
(Model QLS-1) or from 12-30 Vac or 10-48 Vdc (Model QLS-2). Verify that you have the
proper model for the power to be used.
The 85-264 Vac power connector (P1 Pins 1-3) is colored
Green
to differentiate it from
other input and output connectors. The 12-30 Vac or 10-48 Vdc power connector is
colored
Black
. This unit has no power switch. It will be in operation as soon as power is
applied.
To avoid dangers of electrocution and/or short circuit, do not attempt to open the case
while the unit is under power
To prevent an electrical or fire hazard, do not expose the unit to excessive moisture. Do
not operate the unit in the presence of flammable gases or fumes, as such an environ-
ment constitutes an explosion hazard.
Symbols used:
Caution (refer to accompanying documents)
Earth ground
Caution, risk of electric shock
Signal or loop ground
Equipment protected throughout by double
insulation or reinforced insulation.
Both direct and alternating current.
Operating environment:
Class II (double insulated) equipment designed for use in Pollution degree 2.
