ADTRAN DE-4E specifications Maintenance, Troubleshooting Procedures, Product Specifications

7. MAINTENANCE

The ADTRAN FT1 DP requires no routine maintenance. In case of equipment malfunction, use the features supplied with the FT1 DP 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.

8.TROUBLESHOOTING PROCEDURES

Use Table 7 to troubleshoot the FT1 DP.

9.PRODUCT SPECIFICATIONS

Specifications for the FT1 DP are provided in Table 8.

10.WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within 10 years from the date of shipment if it does not meet its published specifications or fails while in service (see ADTRAN Carrier Networks Equipment Warranty, Repair, and Return Policy and Procedure, document 60000087-10A).

Contact Customer and Product Service (CAPS) prior to returning equipment to ADTRAN.

For service, CAPS requests, or further information, contact one of the following numbers:

ADTRAN Sales

Pricing/Availability (800) 827-0807

ADTRAN Technical Support

Presales Applications/Postsales 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

ADTRAN, Inc.

CAPS Department

901 Explorer Boulevard

Huntsville, Alabama 35806-2807

Table 7. Troubleshooting Guide

Condition	Solution
All front panel indicators are off.	1.	Verify that the FT1 DP is properly seated in the housing.
	2.	Make sure power supply feeding the FT1 DP is good.
	3.	If Steps 1 and 2 pass, replace the FT1 DP.
Power OK but does not achieve Loop Sync (DSL LED is off).	1.	Verify that the loop conforms with CSA guidelines
		(not too long, etc.).
	2.	Verify that the Loop Loss at 200 kHz is not greater
		than 36 dB.
	3.	Verify that noise on the DSL Loop is within acceptable
		limits.
	4.	If Steps 1 through 3 pass and Loop Sync is still not
		available, replace the unit with an FT1 DP unit known to be
		in good working condition.

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