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DSR470 User Guide 15
Equipment Attachment Limitations
Note: This product was FCC certified under test conditions that
included the use of shielded I/O cables and connectors between
system components.To complywith FCC regulations, the usermust
use shielded cables and connectors and install them properly.
CP-01, Part 1, Section 10.1 . "NOTICE: The Canadian
Department of Communications label identifies certified
equipment. This certification 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 also be
installed using an acceptable method of connection. In some cases,
the company’s inside wiringassociated with asinglelineindividual
service may be extended by means of a certified connector
assembly (telephone extension cord). 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 made by an authorized
Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunication
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
authority, 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 ofthe Ringer Equivalence Numbers of all the devicesdoes not
exceed 5.