Sharp Mobilon HC-4000 Operation Manual page 72

In Canada:
"NOTICE: The Industry Canada label identifies certified equipment. This
certification means that the equipment meets telecommunications network
protective, operational and safety requirements as prescribed in the appropriate
Terminal Equipment Technical Requirements document(s). 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 also be installed using an acceptable method of connection. The
customer should be aware that compliance with the above conditions may not
prevent degradation of service in some situations.
Repairs to certified equipment should be coordinated by a representative
designated by the supplier. Any repairs or alternations made by the user to this
equipment, or 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 electrical ground connections
of the power utility, telephone lines and internal metallic water pipe system, if
present, are connected together. This precaution may be particularly important in
rural areas.
Caution: Users should not attempt to make such connections themselves, but
should contact the appropriate electric inspection, or electrician, as appropriate."
"NOTICE: 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 telephone 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 Number of all the devices does not exceed 5."
The Ringer Equivalence Number: 0.1
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