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Chapter 2 Installing the D OC SIS Wireless Residential Gateway with Voice
Installation Preparations
Before installing the residential gateway, make sure that your system meets or
exceeds the requirements listed in this section. Also, make sure that you have
prepared your home and home devices as described in this section.
What Are the System Requirements for Internet Service?
To ensure that your residential gateway operates efficiently for high-speed Internet
service, you must have an Internet-capable PC, Mac, or Internet appliance equipped
with an Ethernet port or Wi-Fi capability.
Note: You will also need an active cable input line and an Internet connection.
What Are the Requirements for Telephone Service?
If you intend to use the residential gateway for digital telephone service, verify that
your home meets or exceeds all of the following requirements.
Maximum Number of Telephones
The RJ-11 telephone-style connectors on the residential gateway can each provide
telephone service to multiple telephones, fax machines, and analog modems.
The maximum number of telephone devices connected to each RJ -11 port is limited
by the total Ringing Load of the telephone devices that are connected. Many
telephone devices are marked with a Ringer Equivalent Number (REN). Each
telephone port on the residential gateway can support up to a 5 REN load.
The sum of the REN load on all of the telephone devices attached to each port must
not exceed 5 REN.
Telephone Device Types
You can use telephone devices that are not labeled with a REN number, but the
maximum number of attached telephone devices cannot be accurately calculated.
With telephone devices that are not labeled, each device should be connected and
the ring signal should be tested before adding more devices. If too many telephone
devices are attached and the ring signal can no longer be heard, telephone devices
should be removed until the ring signal works properly.
Telephones, fax machines, and other telephone devices use the center 2 pins of the
RJ-11 connectors to connect to your primary service. The outer 2 pins of the
connector may be provisioned to provide a second telephone line. Contact your
service provider for more information.
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