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FCC regulations require that the following information be provided in this manual:
1. This equipment complies with Part 68 of FCC rules. On the back of the equipment housing is
a label showing the FCC registration number and ringer equivalence number (REN). If
requested, provide this information to the telephone company.
2. If this equipment causes harm to the telephone network, the telephone company may
temporarily discontinue service. If possible, advance notification is given; otherwise,
notification is given as soon as possible. The telephone company will advise the customer of
the right to file a complaint with the FCC.
3. The telephone company may make changes in its facilities, equipment, operations, or
procedures that could affect the proper operation of this equipment. Advance notification and
the opportunity to maintain uninterrupted service are given.
4. If experiencing difficulty with this equipment, please contact ADTRAN for repair and
warranty information. The telephone company may require this equipment to be disconnected
from the network until the problem is corrected or it is certain the equipment is not
malfunctioning.
5. This unit contains no user-serviceable parts.
6. An FCC compliant telephone cord with a modular plug is provided with this equipment. This
equipment is designed to be connected to the telephone network or premises wiring using an
FCC compatible modular jack, which is Part 68 compliant.
7. The following information may be required when applying to the local telephone company for
leased line facilities:
8. The REN is useful in determining the quantity of devices you may connect to your telephone
line and still have all of those devices ring when your number is called. In most areas, the sum
of the RENs of all devices should not exceed five. To be certain of the number of devices you
may connect to your line as determined by the REN, call your telephone company to
determine the maximum REN for your calling area.
9. This equipment may not be used on coin service provided by the telephone company.
Connection to party lines is subject to state tariffs. Contact your state public utility
commission or corporation commission for information.
Service Type SOC REN FIC USOC
1.544 Mbps–SF 04DU9.BN N/A 6.0N RJ-48C
SF and B8ZS 04DU9.DN
ESF 04DU9.1KN
ESF and B8ZS 04DU9.1SN