Warranty And Customer Service - ADTRAN U-BR1TE III W/PWR Installation & Maintenance

Local Performance Monitoring
Performance Monitoring of the local T1 carrier system and
2-wire U-interface of the ISDN data can be performed from
the front panel without interruption of service to the customer.
For this test, bearer channel selection is not applicable and
a test pattern source is not required. To initiate local
performance monitoring, perform the following:
1. Ensure the NORM/PTRN DIP switch is in the NORM
position, and that a bantam plug is NOT installed in
the faceplate TX bantam jack.
2. Select ADR1 using the ten-position rotary switch.
3. Depress the recessed TEST Push-button to initiate
the test. The TEST LED will illuminate GREEN.
4. The total number of Near End Block Errors (NEBE)
received are simultaneously displayed as CRC errors
with the LP and CR CRC status LEDs. (See Table D).
5. To exit Local Performance monitoring, depress the
TEST button for 2 seconds or longer.
deactivation of the test, the TEST LED will go out.
Leased Mode Testing (B1, B2, and 2B)
For leased mode applications, the D channel is typically
disabled on the U-BR1TE III w/PWR. Without the D
channel, standard ISDN loopbacks by way of the EOC
are not available across the T1 carrier system. For this
situation the ADTRAN U-BR1TE III w/PWR responds to
independent network-issued OCU latching loopback
sequences for B1 and B2, when configured as the
Adjacent-to-Customer.
Enabling OCU latching loopback sequence:
1. Minimum of 35 transition in progress (TIP) bytes
(*0111010).
2. Minimum of 35 loopback select code (LSC) bytes
(*1010101).
3. Minimum of 100 loopback enable (LBE) bytes
(*1010110).
4. Minimum of 32 far-end voice (FEV) bytes (*1011010).
* Denotes Don't Care bit -- either a 1 or a 0.
Disabling OCU latching loopback sequence:
1. Minimum of 35 TIP bytes.
The valid front panel tests in leased modes are ADR1,
CRTX, LPTX, and LPBK for all circuit positions. NT1,
ADR1-ADR6 loopback tests are valid for the Adjacent-
to-Customer circuit position only. ADR2 would be used
to test an ADTRAN U-Repeater deployed from the
U-BR1TE III w/PWR.
8
Local Performance Monitoring is available only for the U-
interface, when configured for a leased mode of operation.
See the subsections entitled Loopback Tests , Point-to-
Point Test , and Local Loopback for applicable test
descriptions.

4. WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within ten
years from the date of shipment if this product does not
meet its published specifications or if it fails while in
service.
information, refer to the ADTRAN Equipment Warranty
and Return Policy Procedure.
Return Material Authorization (RMA) is required prior to
returning equipment to ADTRAN. ADTRAN does not
recommend that repairs be performed in the field.
For Service, RMA requests, or further information, contact
Upon
one of the following numbers:
ADTRAN Customer Service:
Telco Technical Support
Standard support hours:
Emergency support:
Sales
RMA (repair service)
Repair and Return Address:
ADTRAN, Inc.
Customer Service Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
Section 61103.020L4-5A, Issue 1
For detailed warranty, repair, and return
7 a.m. - 7 p.m. CST
7 days/week, 24 hours/day
(800) 726-8663
Monday-Friday
(800) 827-0807
(205) 971-8722
61103.020L4-5A