ADTRAN AHDSL2 Troubleshooting Procedures, Product Specifications, Warranty and Customer Service

6. TROUBLESHOOTING PROCEDURES

Table 13 is a troubleshooting guide for the Litespan H2TU-C.

7. PRODUCT SPECIFICATIONS

Product specifications for the ADTRAN H2TU-C are listed in Table 14.

8. 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.

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 13. Troubleshooting Guide
Condition		Solution
At power up, all front panel	1. Verify that the channel bank or ONU BPS power LEDs are on.
indicators are OFF	2. Make sure that the unit is fully and correctly inserted into the channel bank or ONU.
	3.	If step 1 fails, contact Alcatel customer service (800-848-0333). If step 1 passes, but step
		2 fails, replace the H2TU-C.
The STAT LED remains RED.	1. Verify that the channel bank or ONU BPS STAT LEDs are off.
	2.	Verify that the equipment type for the Litespan H2TU-C slot is AHDSL2. Using TL1,
		equipment type is shown with the command RTRV-EQPT::AID, where AID is the access
		identifier (i.e., COT-1-15).
	3.	If step 1 fails, contact Alcatel customer service (800-848-0333). If step 1 and step 2 pass,
		replace the H2TU-C. If step 1 passes but step 2 fails, delete the equipment record
		(i.e., DLT-EQPT::COT-1-15 with TL1) and reinsert the card, or equip the slot with the
		currently reserved equipment type.
The STAT LED is OFF, but the	1. Confirm that the HDSL2 loop is not open.
HLOS LED remains RED.	2. Confirm that the HDSL2 loop is not shorted.
	3.	Verify the loop conforms to CSA guidelines and is not too long. Loop loss at 200 kHz
		should be less than 35.25 dB.
	4.	Verify that the HDSL2 loop has acceptable noise limits (see Section 4).
	5.	Verify that tip and ring of the HDSL2 loop belong to the same twisted pair.
	6.	If steps 1 through 5 pass, but the HLOS LED remains red, replace the H2TU-C.
	7.	If step 6 fails, replace the H2TU-R.
The STAT LED is OFF, but the	1. Check that the framing and line coding are set appropriately for T1 data at the H2TU-R and
RLOS LED remains RED.		check for cross-connected T1 data coming to the H2TU-C.
	2.	Check that the RLOS LED at the H2TU-R is off.
	3.	If step 1 fails, change the appropriate framing and line coding. If step 1 passes but step 2 fails,
		a problem may exist at the H2TU-R T1 interface. If subsequent testing determines that the
		problem does not exist at the T1interface, replace the H2TU-C.

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