Adtran NIU3 Manual Do Utilizador

61175043L3-5A

Issue 1, January 2004

5

will be recharged when normal AC voltage is restored and the 
relay will close when the battery voltage exceeds 40V.

Certain alarm features on the power supply are still powered 
by the battery after the disconnect relay is opened. These 
features slowly drain the battery. If it is known that AC power 
will be unavailable for an extended periods (greater than a 
week), ADTRAN recommends that the battery be 
disconnected from the power supply to prevent over-
discharge.

The AC/DC Power Supply and Battery Charger does not re-
quire routing maintenance for design operation.

ADTRAN does not recommend that repairs be attempted in 
the field. Repair services are obtained by returning the defec-
tive unit to ADTRAN Customer Service.

All Total Access Battery Backup systems have a 10 year war-
ranty coverage on the product.  This includes cables, hous-
ings, PCBs, and any other ADTRAN-built components 
(excluding lead acid batteries).  

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

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

ADTRAN Sales
Pricing and Availability
(800) 827-0807

ADTRAN Technical Support 
Pre sales Applications/Post-sale Technical Assistance
(888) 4-ADTRAN

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
901 Explorer Boulevard
Huntsville, Alabama 35806-2807

IC

F

C

TC

—

—

PC

R

—