Black Box HS205A Headphones User Manual

Items (b) and (d) can be found on the unit’s FCC label. The ringer equivalence number (REN) is used
to determine how many devices can be connected to your telephone line. In most areas, the sum of the
RENs of all devices on any one line should not exceed five (5.0). If too many devices are attached, they
may not ring properly.
6. In the event of an equipment malfunction, all repairs should be performed by your supplier or an
authorized agent. It is the responsibility of users requiring service to report the need for service to the
supplier or to an authorized agent.
The Canadian Department of Communications label identifies certified equipment. This certification means
that the equipment meets certain telecommunications-network protective, operation, 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 wiring associated with a single-line individual service may be
extended by means of a certified connector assembly (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—in this case,
your 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.