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FCC regulations require that the following information be provided to the
customer in this manual.
1. This equipment complies with Part 68 of the FCC rules. The required label is affixed to the
bottom of the chassis.
2. If your telephone equipment TSU 600 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.
3. Your telephone company may make changes in its facilities, equipment, operations, or proce-
dures 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 uninterrupted service.
4. If you experience trouble with this equipment TSU 600, please contact ADTRAN Customer
Service for repair/ warranty information (see the inside back cover of this manual). 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.
5. This unit contains no user serviceable parts.
6. The following information may be required when applying to your local telephone company for
leased line facilities.
Digital Facility Service Order Network
Service Type Interface Code Code Jacks
1.544 Mbps Digital Interface SF 04DU9-B 6.0F RJ48C
1.544 Mbps Digital Interface ESF 04DU9-C 6.0F RJ48C
1.544 Mbps Digital Interface ESF with B8ZS 04DU9-S 6.0F RJ48C
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT:
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the instuction manual,
may cause harmful interference to radio frequencies. Operation of this equipment in a residential area is likely
to cause harmful interference in which case the user will be required to correct the interference at his own
expense.
Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.
WARNING: Change or modifications to this unit not expressly approved by the party respon
sible for compliance could void the user’s authority to operate the equipment.