ADTRAN T200 H4TU-R specifications Maintenance, Specifications, Warranty and Customer Service

8. MAINTENANCE

The T200 H4TU-R requires no routine maintenance for normal operation. In case of equipment malfunction, use the front panel bantam jack connectors to help locate the source of the problem. Verification of possible trouble indications may be accomplished using the Troubleshooting Guide in Table 9.

ADTRAN does not recommend that repairs be attempted in the field. Repair services may be obtained by returning the defective unit to ADTRAN. Refer to the Warranty and Customer Service section for further information.

9. SPECIFICATIONS

Specifications for the T200 H4TU-R are detailed in Table 10.

10.WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifi- cations or fails while in service. Warranty information can be found at www.adtran.com/warranty.

U.S. 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.

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

Table 9. Troubleshooting Guide

Condition: All front panel indicators are off.

Solutions:

1.Make sure the H4TU-R is properly seated in the housing.

2.Verify that the enclosure is delivering sufficient voltage to the unit.

If steps 1 and 2 pass and front panel indicators remain off, replace the H4TU-R.

Condition: DSL 1/DSL 2 LED is red.

Solutions:

1.Verify that loss (attenuation) on Detailed System Status screen is < 32 dB on the first segment of the circuit and < 28 dB on the second and third segments of the circuit.

2.Verify that the loop meets requirement stated in the HDSL4 Deployment Guidelines section of this practice.

3.Verify that noise on the HDSL4 loops is within acceptable limits.

If steps 1-3pass and LED is red, replace the H4TU-R.

61223424L2-5A Issue 1, December 2003 19