1
Warnings and Cautions
Before installation
Warning:
Before installation,
TURN OFF
the external circuit breaker
which supplies power to the device.
Before connecting the device to the power supply, verify that the output
voltage is within specifications of the power supply. (See “Technical
specifications” on page 44.)
Do not apply power to the device until
after
the installation has been
completed. The equipment can be damaged if this precaution is not
observed.
Fire Safety and Liability Notice
Warning:
Never connect card readers to any critical entry, exit door, barrier,
elevator or gate without providing
an alternative exit
in accordance with
all the fire and life safety codes pertinent to the installation.
These fire and safety codes vary from city to city and you must get
approval from local fire officials whenever using an electronic product to
control a door or other barrier. Use of egress buttons, for example, may be
illegal in some cities. In most applications, single action exit without prior
knowledge of what to do is a life safety requirement. Always make certain
that any required approvals are obtained in writing. DO NOT ACCEPT
VERBAL APPROVALS SINCE THEY ARE NOT VALID.
Damage during shipment
Caution:
IF ANY DAMAGE TO THE SHIPMENT IS NOTICED, A
CLAIM MUST BE FILED WITH THE COMMERCIAL CARRIER
RESPONSIBLE FOR THE DAMAGE.
Electrostatic discharge
Caution:
Electrostatic discharge (ESD) can damage integrated circuits and
modules.
To prevent damage always follow these procedures:
