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The Canadian Department of Communications label identifies certified equipment. This certifi-
cation means that the equipment meets certain telecommunications network protective,
operational, and safety requirements. The department does not guarantee the equipment
will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to
the facilities of the local telecommunications company. The equipment must be installed
using an acceptable method of connection. In some cases, the company’s inside wiring asso-
ciated with a single line individual service may be extended by means of a certified connec-
tor assembly (telephone extension cord). The customer should be aware that compliance
with the above condition may not prevent degradation of service in some situations.
Repairs to some certified equipment should be made by an authorized maintenance facility des-
ignated by the supplier. Any repairs or alterations made by the user to this equipment, or
any equipment malfunctions, may give the telecommunications company cause to request
the user to disconnect the equipment.
Users should ensure for their own protection that the ground connections of the power utility,
telephone lines, and internal metallic water pipe system are connected together. This pre-
caution may be important particularly in rural areas.
CAUTION: Users should not attempt to make such connections themselves but should con-
tact the appropriate electrical inspection authority or electrician as appropriate.
The RINGER EQUIVALENCE NUMBER (REN) assigned to each terminal device denotes the
percentage of the total load to be connected to a telephone loop which is used by the
device to prevent overloading. The termination on a loop may consist of any combination
of devices subject only to the requirement that the total of the REN of all devices does not
exceed five.
The REN for the MAT972 is .2A.
Canadian Ringer Equivalence Number Notice
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