Gericom SilverSeraph CL10, Руководство пользователя

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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.
2 . The user manual of analog equipment must contain the
equipment’s Ringer Equivalence Number (REN) and an explanation
notice similar to the following:
The Ringer Equivalence Number (REN) of this device is 0.3B.
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 of the Ringer
Equivalence Numbers of all the devices does not exceed 5.
3 . The standard connecting arrangement (telephone jack type)
for this equipment is jack type(s): USOC RJ11C.