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Repairs to certified equipment should be made by an authorized Canadian mainte-
nance facility designed by the supplier. Any repairs or alterations made by a user to
this equipment or equipment malfunctions, may give the telephone communications
company cause to request the user to disconnect the equipment.
For your own protection, make sure that the electrical ground connections of the
power utility, telephone lines and internal metallic water pipes systems, if present,
are connected together. This precaution may be particularly important in rural areas.
Caution: Do not attempt to make electrical ground connections yourself, contact the
appropriate electric inspection authority or an electrician.
The Ringer Equivalence Number (REN) assigned to each terminal device provides
an indication of the maximum number of terminals allowed to be connected to a tele-
phone interface. The termination on an interface may consist of any combination of
devices subject only to the requirement that the sum of the Ringer Equivalence
Numbers of all devices does not exceed 5.
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