JOBAID
U-BR1TE WITH POWER
LED STATUS
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
O O 1 2 3 4 5 6 7
N N
■ All Layer 1 maintenance functions
■ Provides repeater powering and DDS IDSL support
STATUS
AP
PWR
ZBS
D
B2
●
Red
✷
Flashing
Green
Unpack the Total Access 1500 U-BR1TE access module and inspect for damage. If
1 damage
is has ocurred, file a claim with the carrier and then contact ADTRAN.
●
Yellow
SW1 is provisioned properly for the intended application. Refer to the table
2 Verify
below for default provisioning and other provisioning options. Make changes to
✷
Flashing
SW SETTINGS
TX
Off
✷✷ Flashing
✷✷ Flashing
SW1 options as necessary.
RX
●
●
INSTALLATION AND TURN-UP
REM
STATUS
LUNT
U-BR1TE
1180020L2
B1
®
LULT
CLEI: SIC2XYLK_ _
DESCRIPTION
SX
U-BR1TE
61180020L2-22A
0307
REM
Switch Label
Function/Description
SW1-1
Termination Mode
*ON…LULT Mode (RT Typical)
OFF…LUNT Mode (COT Typical)
Sealing Current
*ON…DC sealing current provided (Adjacent to switch or customer)
OFF…DC sealing current not provided (Tandem office installation)
Service Level Station (Enables B1 Channel)
(Enables B2 Channel)
(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
Zero Byte Substitution
ON....Enable ZBS
*OFF…Disable ZBS
Enables Repeater Powering
LULT/LUNT
LOGIC
SW1-2
SX
SW1-3
SW1-4
SW1-5
B1
B2
D
SW1-6
SW1-7
ZBS
PWR ON
●
Green
Indicates both loop and carrier synchronization have
been established
Solid indicates neither loop nor carrier synchronization
has been established.
Once every two seconds indicates loop synchronization
has been established, but carrier synchronization has not.
Twice every second indicates carrier synchronization has
been established, but loop synchronization has not.
Indicates that Layer 1 is established from the ISDN switch
to the customer ISDN terminal equipment.
Solid when a front panel test has been initiated or when
responding to 2B+D loopback request.
Flashes once every two seconds when responding to a B1
loopback request.
Flashes twice every two seconds when responding to B2
loopback request.
Indicates the unit has been provisioned by the SCU.
AP PUSHBUTTON
AP
Pushbutton
PROVISIONING
Alternative provisioning switch. Changes provisioning
source from remote to manual.
Total Access 1500 supports two types of provisioning modes, local and
5 The
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
VT100 compatible terminal to SCU front panel ADMIN port. The ADMIN
6 Connect
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.
* Factory Default
U-BR1TE access module into a Total Access 1500 chassis slot 1-24. To insert,
3 Insert
hold the U-BR1TE access module by the front panel while supporting the bottom
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
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.
4 Monitor Status LED for operational status.
■ For a complete Installation and Maintenance Practice (P/N 61180020L2-5): 877-457-5007,
Faxback Document 942. Please have your fax number ready. ■
PRICING AND AVAILABILITY 800.827.0807
TECHNICAL SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61180020L2-22A
U-BR1TE WITH POWER
7 Navigate through the menus to perform the desired function.
NOTE: To traverse through the menus, select the desired entry, and press Enter. To work backward in
the menu, press Esc (escape key).
8
Test functions can be activated through front panel bantam jacks, the ADMIN port, or in-band
loopback sequences.
TESTING
■ Loopback tests – initiated from either the ISDN switch or the front panel via the local craft
interface in the Network-to-Customer direction
■ Point-to-point test – initiated via the local craft interface toward either the U-interface or the T1
carrier interface
■ Local Loopback – initiated from the local craft interface for either bearer channel
■ Leased Mode Testing – responds to independent network-issued OCU and CSU latching
MLT3.0/ISDN CHANNEL TEST
Channel Test (LUNT Mode)
Upon detection of the Test Initiative Voltage (116 VDC behind 8kΩ applied to Tip with Ring open) the
LUNT does the following:
■ Sends a Channel Test mp-eoc message downstream to the LULT, signaling the request for a MLT
channel test
■ Notifies the SCU that an MLT test is underway
■ Sends a 333.3 Hz tone between the Tip and Ring leads. This tone is compliant with TR-TSY-00465
■ When the Test Initiative Voltage is removed, the active test status indication to the SCU is
removed, a Return to Normal mp-eoc message is sent to the LULT, and the U-Interface attempts
re-synchronization.
Channel Test (LULT Mode)
loopback sequences for B1 and B2, when configured Adjacent-to-Customer and the D channel is
disabled
■ DS0 DP Latching Loopback sequences in B1 when D channel is off (B1, 2B)
■ EOC remapping of subsequent DS0 DP Latching Loopbacks to downstream elements
CONNECTIONS
■ All connections are made through the 50-pin amphenol connector on the Total Access 1500
Upon receipt of the Channel Test mp-eoc message, the LULT does the following:
■ Notifies the SCU that an MLT test is underway
■ Connects the bypass pair. This connects the customer drop to the common equipment through
TEST_R and TEST_T. The setup sequence is complete.
■ Upon completion of the automatic test the bypass relay de-energizes
■ Attempts to re-synchronize the U-interface between the LULT and the NT1.
BANTAM TEST JACKS
backplane
■ Accommodate DS0 Logic Testers such as the TPI 108/109 RT II or an equivalent test set to
SPAN POWER
perform upstream and downstream testing.
The U-BR1TE span powers the IDSL OCU-R or a U-Repeater. Voltage measurements from Tip to
Ring is –120 VDC (with no termination). Tip to GND is 0. Ring to GND is –120 VDC (with no
termination) or less depending on voltmeter impedance.
COMPLIANCE
This product is intended to be installed in products providing a Type “B” or “E” enclosure, and in
a Restricted Access Location.
DDS APPLICATION
Customer Premises
Channel Bank
■ NEBS Level 3 compliant
■ Operating temperature range of –40ºC to +65ºC
T-Carrier
U-BR1TE
4-Wire Customer
Interface
2-Wire Loop
IDSL
OCU-R
Code
DSU/CSU
T/R Pair
T1
U-BR1TE
ISDN
Switch
U-BR1TE
T1
“U”
U-BR1TE
T1
“U”
Input
Output
F, C
X
A
C
X
–
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
ISDN APPLICATIONS
“U”
Power Code (PC)
Telecommunication Code (TC)
Installation Code (IC)
U-BR1TE
“U”
U-BR1TE
NT 1
NT 1
Customer
Premises
“U”
“U”
U-BR1TE
U-Repeater
Customer Premises
Changes or modifications not expressly approved by ADTRAN could void the user’s authority to
operate this equipment.
WARRANTY
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 customer Faxback: 877-457-5007, Document 414
">
