8-4 Getting Started GuideRepairs to the certified equipment should be made by an authorized Canadian maintenance facilitydesignated by the supplier. Any repairs or alterations made by the user to this equipment, or equipmentmalfunctions, may give the telecommunications company cause to request the user to disconnect theequipment.Users should ensure for their own protection that the electrical ground connections of the power utility,telephone lines, and internal metallic water pipe system, if present, are connected together. This precautionmay be particularly important in rural areas.CautionUsers should not attempt to make such connections themselves, but should contact the appropriate electricinspection authority, or electrician, as appropriate.The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximumnumber of terminals allowed to be connected to a telephone interface. The termination on an interface mayconsist of any combination of devices subject only to the requirement that the sum of the Ringer EquivalenceNumbers of all the devices does not exceed 5.Important Safety InstructionsAustralian Safety InformationThe following safety information is provided in conformance with Australian safety requirements:CautionDO NOT USE BEFORE READING THE INSTRUCTIONS: Do not connect the Ethernet ports to a carrier or carriageservice provider’s telecommunications network or facility unless: a) you have the written consent of the networkor facility manager, or b) the connection is in accordance with a connection permit or connection rules.Connection of the Ethernet ports may cause a hazard or damage to the telecommunication network or facility,or persons, with consequential liability for substantial compensation.Caution• The direct plug-in power supply serves as the main power disconnect; locate the direct plug-in power supplynear the product for easy access.• For use only with CSA Certified Class 2 power supply, rated 12VDC, 1.0A.Telecommunication installation cautions• Never install telephone wiring during a lightning storm.• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected atthe 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 riskof electric shock from lightning.• Do not use the telephone to report a gas leak in the vicinity of the leak.