Cisco 1605-R How To Use Manual page 31

Industry Canada CS-03
The following information applies to models used in Canada.
Ringer Equivalence Number
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 Numbers of all the
devices does not exceed 5.
Equipment Attachment Limitations
The Industry Canada label identifies certified equipment. This certification means that the
equipment meets certain telecommunications network protective, operational, and safety
requirements as prescribed in the appropriate Terminal Equipment Technical Requirement
Documents. 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 alterations 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.
Users should not attempt to make connections themselves, but should contact the
Caution
appropriate electric inspection authority, or electrician, as appropriate.
Overview of Cisco WAN and Voice Interface Cards 1-23
Industry Canada CS-03