background image

U-BR1TE WITH  POWER

JOB

A

ID

61180020L2-22A  

0307

U-BR1TE

1180020L2

STATUS

REM

AP

RX

TX

LOGIC

U-BR1TE

CLEI: SIC2XYLK_ _

DESCRIPTION

The U-BR1TE with power plugs into a single channel slot of a Total Access

®

1500 

chassis.  It provides an ISDN U-interface and allows the transport of Basic Rate 2B+D
information over T1 carriers.  The U-BR1TE features:

18kft nominal range in mixed gauge wire

ISDN 2B1Q interface

Internal testing of individual B channels

All Layer 1 maintenance functions

Provides repeater powering and DDS IDSL support

INSTALLATION AND TURN-UP

Unpack the Total Access 1500 U-BR1TE access module and inspect for damage. If
damage is has ocurred, file a claim with the carrier and then contact ADTRAN.

Verify SW1 is provisioned properly for the intended application. Refer to the table
below for default provisioning and other provisioning options. Make changes to
SW1 options as necessary.

SW SETTINGS

Switch Label

Function/Description

SW1-1

LULT/LUNT

Termination Mode

*ON…LULT Mode (RT Typical)

OFF…LUNT Mode (COT Typical)

SW1-2

SX

Sealing Current

*ON…DC sealing current provided

(Adjacent to switch or customer)

OFF…DC sealing current not provided (Tandem office installation)

SW1-3

B1

Service Level Station (Enables B1 Channel)

SW1-4

B2

(Enables B2 Channel)

SW1-5

D

(Enables D Channel)

Service 

SW1-3

SW1-4

SW1-5

Option

(B1)

(B2)

(D)

2B+D

*ON

*ON

*ON

2B

ON

ON

OFF

B1+D

ON

OFF

ON

B2+D

OFF

ON

ON

B1

ON

OFF

OFF

B2

OFF

ON

OFF

D

OFF

OFF

ON

SW1-6

ZBS

Zero Byte Substitution

ON....Enable ZBS

*OFF…Disable ZBS

SW1-7

PWR ON

Enables Repeater Powering 

* Factory Default

Insert U-BR1TE access module into a Total Access 1500 chassis slot 1-24. To insert,
hold the U-BR1TE access module by the front panel while supporting the bottom
edge of the module. Align the access module edge with the guide groove in the Total
Access 1500 chassis. Insert into chassis until the edge module connector seats 
firmly into the chassis backplane. Lock the access module in place by pushing in on
the locking lever.

Monitor Status LED for operational status.

LED STATUS 

STATUS

Off

Indicates both loop and carrier synchronization have
been established

Red

Solid indicates neither loop nor carrier synchronization
has been established.  

Flashing

Once every two seconds indicates loop synchronization
has been established, but carrier synchronization has not.

✷✷

✷✷

Flashing 

Twice every second indicates carrier synchronization has
been established, but loop synchronization has not.

Green

Indicates that Layer 1 is established from the ISDN switch
to the customer ISDN terminal equipment.

Yellow

Solid when a front panel test has been initiated or when 
responding to 2B+D loopback request.

Flashing 

Flashes once every two seconds when responding to a B1 
loopback request.

✷✷

✷✷

Flashing 

Flashes twice every two seconds when responding to B2 
loopback request.

REM

Green

Indicates the unit has been provisioned by the SCU. 

AP PUSHBUTTON

AP

Pushbutton

Alternative provisioning switch.  Changes provisioning
source from remote to manual.

PROVISIONING

The Total Access 1500 supports two types of provisioning modes, local and
remote. Local provisioning results in the unit operating as defined by the
onboard switches. Remote provisioning, if chosen, results in the unit operating as
defined by the system controller menu settings (onboard switches are ignored).
The operational mode is indicated by the REM LED and can be changed by 
activating the AP (Alternate Provisioning) front panel switch

Connect VT100 compatible terminal to SCU front panel ADMIN port. The ADMIN
port issued for provisioning, testing, and performance monitoring functions.

Connect DB-9 cable

Run terminal emulation program

If using Windows HyperTerminal, open by selecting 
Programs/Accessories/Hyperterminal

Login and navigate through ADMIN port menu structure

NOTE

: To ensure proper display background, select VT100 Terminal Emulation 

under settings.

■  

For a complete Installation and Maintenance Practice (P/N 61180020L2-5): 877-457-5007,

Faxback Document 942.  Please have your fax number ready. 

LUL

T

LUNT

SX

B1

B2

1

1

1

O
N

O
N

O
N

O
N

2

2

2

3

3

3

4

4

4

D

ZBS

PWR

5

5

5

6

6

6

7

7

7

1

C A U T I O N 

C A U T I O N ! 

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

2

3

4

5

6

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