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7. MAINTENANCE
The ADTRAN H4TU-C requires no routine
maintenance. In case of equipment malfunction, use
the front panel bantam jack connectors to help locate
the source of the problem.
ADTRAN does not recommend that repairs be
performed in the field. Repair services may be
obtained by returning the defective unit to ADTRAN.
For more information refer to Warranty and Customer
Service section.
8. PRODUCT SPECIFICATIONS
Product specifications are detailed in Table 9.
9. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within
the warranty period if it does not meet its published
specifications or fails while in service. Warranty
information can be found at
www.adtran.com/warranty.
USA and Canada customers can also receive a copy of
the warranty via ADTRAN's toll-free faxback server
at 877-457-5007.
• Request Document 414 for the U.S. and Canada
Carrier Networks Equipment Warranty.
• Request Document 901 for the U.S. and Canada
Enterprise Networks Equipment Warranty.
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Refer to the following subsections for sales, support,
CAPS requests, or further information.
ADTRAN Sales
Pricing/Availability:
800-827-0807
ADTRAN Technical Support
Pre-Sales Applications/Post-Sales Technical Assistance:
800-726-8663
Standard hours: Monday - Friday, 7 a.m. - 7 p.m. CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Repair/CAPS
Return for Repair/Upgrade:
(256) 963-8722
Repair and Return Address
Contact Customer and Product Service (CAPS) prior
to returning equipment to ADTRAN.
ADTRAN, Inc.
CAPS Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
61222401L1-5C
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