Government Requirements And Equipment Return; United States - Paradyne Comsphere 3920Plus Installation And Operation Manual

COMSPHERE 392xPlus Modems
The Model 3921Plus derives ac power from the COMSPHERE 3000 Series Carrier's backplane,
which is a common bus to all devices installed in the carrier. The user interface to any
Model 3921Plus is through the shared diagnostic control panel (SDCP), an optional feature which
operates in a manner similar to the DCP on the Model 3920Plus. For a better understanding of
DCP operation, refer to Chapter 3, DCP Operation.
The COMSPHERE 3000 Series Carrier has a total of 17 slots. The first slot, Slot 0, is reserved for
the shared diagnostic unit (SDU) while the remaining 16 slots can house up to 8 Model 3921Plus
modems, or a combination of Model 3921Plus modems and other units. For more details on the
COMSPHERE 3000 Series Carrier, refer to the COMSPHERE 3000 Series Carrier, Installation
Manual.

Government Requirements and Equipment Return

Certain governments require that instructions pertaining to modem connection to the public
switched telephone network be included in the installation and operation manual. Specific
instructions are listed in the following sections.

United States

NOTICE TO USERS OF THE PUBLIC SWITCHED TELEPHONE NETWORK
1. This equipment complies with Part 68 of the FCC rules. On the equipment is a label that
2. Page A of this manual contains the Universal Service Order Codes (USOC) associated with
3. An FCC compliant telephone cord and modular plug is provided with this equipment. This
4. The ringer equivalence (REN) is used to determine the quantity of devices which may be
5. If the 392xPlus modem causes harm to the telephone network, the telephone company will
6. The telephone company may make changes in its facilities, equipment, operations, or
1-6
contains, among other information, the FCC registration number and ringer equivalence
number (REN) for this equipment. The label is located on the bottom of the
Model 3920Plus modem. This label is located on the Model 3921Plus modem's circuit
card assembly. If requested, this information must be provided to the telephone company.
the services on which the equipment is to be connected.
equipment is designed to be connected to the telephone network or premises wiring using a
compatible modular jack which is Part 68 compliant. See Installation Instructions for
details.
connected to the telephone line. Excessive RENs on the telephone line may result in the
devices not ringing in response to an incoming call. In most, but not all areas, the sum of
the RENs should not exceed five (5.0). To be certain of the number of devices that may be
connected to the line, as determined by the total RENs, contact the telephone company to
determine the maximum RENs for the calling area.
notify you in advance that temporary discontinuance of service may be required. But if
advance notice is not practical, the telephone company will notify the customer as soon as
possible. Also, you will be advised of your right to file a complaint with the FCC if you
believe it is necessary.
procedures that could affect the operation of the equipment. If this happens, the telephone
company will provide advance notice in order for you to make the necessary modifications
in order to maintain uninterrupted service.
April 1995 3920-A2-GN31-10