Filter
Top Products
FCC regulations require that the following information be provided to the custom-
er in this manual.
1. If your telephone equipment ( ISU 128)
causes harm to the telephone network, the
telephone company may discontinue your service temporarily. If possible, they
will notify you in advance. But if advance notice isn’t practical, you will be notified
as soon as possible. You will be advised of your right to file a complaint with the
FCC.
2. Your telephone company may make changes in its facilities, equipment, operations,
or procedures that could affect the proper operation of your equipment. If they do,
you will be given advance notice so as to give you an opportunity to maintain unin-
terrupted service.
3. If you experience trouble with this equipment ( ISU 128),
please contact ADTRAN
(see inside back cover)
for repair/warranty information. The telephone company
may ask you to disconnect this equipment from the network until the problem has
been corrected, or until you are sure the equipment is not malfunctioning.
4. This unit contains no user-serviceable parts.
To ADTRAN service personnel: For continued protection against risk of fire, re-
place F1 with the same type and rating of fuse
only
: .2 A, 250 V.