Connecting The Wan; Connecting To The Public Telephone Network - SMC Networks D3CM1604V Administrator's Manual

Connecting the WAN

To connect the EMTA to a Wide Area Network (WAN) interface:
1. Connect a coaxial cable to the port labeled CABLE on the rear panel of the EMTA from a
cable port in your home or office (see Figure 1-2 on page 13). Use only manufactured
coaxial patch cables with F-type connectors at both ends for all connections.
2. Hand-tighten the connectors to secure the connection.
3. If the modem was not installed by your cable provider (ISP) or is replacing another cable
modem, contact your cable operator to register the D3CM1604V . If the modem is not
registered with your cable operator, it cannot connect to the cable network system.

Connecting to the Public Telephone Network

The rear panel of the EMTA has two RJ-11 telephone-style connectors labeled TEL1 and
TEL2. Each of these connectors can 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 EMTA 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.
Before you use the EMTA's RJ-11 connectors to power the analog devices in your home or
office, disconnect the telephone lines from any other provider at the demarcation point. If the
incoming phone line is connected to another provider, such as an incumbent telephone
company, it can result in potentially harmful voltage to the analog telephone line.
Note: The customer or the customer's wire contractor is responsible for adhering to all local
codes for wiring.
To set up the ability to place calls using a regular analog telephone line (PSTN), perform the
following procedure.
1. Disconnect the phone lines from any other provider at the demarcation point, if appropriate.
2. Connect the RJ-11 cable on an analog device to the TEL1 connector on the rear panel of
the EMTA.
3. Connect the RJ-11 cable on another analog device to the TEL2 connector on the rear
panel of the EMTA.
Installing the EMTA
D3CM1604V EMTA Cable Modem Administrator Manual
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