28! Important Safety Instructions1. Read and follow all warning notices and instructions marked on the product orincluded in the manual.2. This product is intended to be used with a three-wire grounding type plug – a plugwhich has a grounding pin. This is a safety feature. Equipment grounding is vital toensure safe operation. Do not defeat the purpose of the grounding type plug bymodifying the plug or using an adapter.Prior to installation, use an outlet tester or a voltmeter to check the ac receptaclefor the presence of earth ground. If the receptacle is not properly grounded, theinstallation must not continue until a qualified electrician has corrected the problem.If a three-wire grounding type power source is not available, consult a qualifiedelectrician to determine another method of grounding the equipment.3. Slots and openings in the cabinet are provided for ventilation. To ensure reliableoperation of the product and to protect it from overheating, these slots andopenings must not be blocked or covered.4. Do not allow anything to rest on the power cord and do not locate the productwhere persons will walk on the power cord.5. Do not attempt to service this product yourself, as opening or removing covers mayexpose you to dangerous high voltage points or other risks. Refer all servicing toqualified service personnel.6. General purpose cables are provided with this product. Special cables, which maybe required by the regulatory inspection authority for the installation site, are theresponsibility of the customer.7. When installed in the final configuration, the product must comply with theapplicable Safety Standards and regulatory requirements of the country in which itis installed. If necessary, consult with the appropriate regulatory agencies andinspection authorities to ensure compliance.8. A rare phenomenon can create a voltage potential between the earth grounds oftwo or more buildings. If products installed in separate buildings areinterconnected, the voltage potential may cause a hazardous condition. Consult aqualified electrical consultant to determine whether or not this phenomenon existsand, if necessary, implement corrective action prior to interconnecting the products.9. Input power to this product must be provided by one of the following: (1) aUL-listed/CSA-certified power source with a Class 2 or Limited Power Source (LPS)output for use in North America, or (2) a certified transformer, with a Safety ExtraLow Voltage (SELV) output having a maximum of 240 VA available, for use in thecountry of installation.10. In addition, if the equipment is to be used with telecommunications circuits, take thefollowing precautions:— Never install telephone wiring during a lightning storm.— Never install telephone jacks in wet locations unless the jack is specificallydesigned for wet locations.— Never touch uninsulated telephone wires or terminals unless the telephone linehas been disconnected at the network interface.— Use caution when installing or modifying telephone lines.— Avoid using a telephone (other than a cordless type) during an electrical storm.There may be a remote risk of electric shock from lightning.— Do not use the telephone to report a gas leak in the vicinity of the leak.