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7. TROUBLESHOOTING PROCEDURES
Table 8 is a troubleshooting guide for the 220/E220
HTU-C M.
Table 8. Troubleshooting Guide
C
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8. MAINTENANCE
The ADTRAN 220/E220 HTU-C M requires no
routine maintenance. In case of equipment
malfunction, use the faceplate 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 the
ADTRAN Customer Service RMA Department.
9. PRODUCT SPECIFICATIONS
Product specifications are detailed in Table 9.
61246001L2-5B
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-
8 4
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Section 61246001L2-5, Issue 2
10. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within
ten years from the date of shipment if it does not meet
its published specifications or fails while in service
(see ADTRAN Equipment Warranty, Repair, and
Return Policy and Procedure).
Return Material Authorization (RMA) is required
prior to returning equipment to ADTRAN.
r e
t
e h
For service, RMA requests, or further information,
contact one of the following numbers.
ADTRAN Customer Service:
ADTRAN Telco Technical Support .... (800) 726-8663
Standard support hours ........................ Monday-Friday
t s
Emergency support ............ 7 days/week, 24 hours/day
Sales ..................................................... (800) 827-0807
2
RMA (repair service) .......................... (256) 963-8722
Repair and Return Address:
ADTRAN, Inc.
Customer and Product Support (CAPS)
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
7 a.m. - 7 p.m. CST
19
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Troubleshooting
