4 | Installation Guide |
Warnings and Cautions
WARNING
Before installation, TURN OFF the external circuit breaker which supplies power to the system.
Before connecting the device to the power supply, verify that the output voltage is within specifications of the power supply.
Do not apply power to the system until after the installation has been completed. Personal injury or death could occur, and the equipment could be damaged beyond repair if this precaution is not observed!
WARNING
Fire Safety and Liability Notice
Never connect card readers to any critical entry, exit door, barrier, elevator or gate without providing an alternative exit in accordance with all fire and life safety codes pertinent to the installation. These fire and safety codes vary from city to city and approval from local fire officials is required 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 applica- tions, 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 AC-
CEPT VERBAL APPROVALS, AS THEY ARE NOT VALID.
Northern never recommends using the
WARNING
EARTH ground all enclosures, for proper installation.
EARTH ground can be obtained through the power supply or by grounding the cabinet,
BUT NOT BOTH!
WARNING
Use suppressors on all door strikes. Use
The information in this document is subject to change without notice.