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ADTRAN U-BR1TE ISDN 2B1Q Brochure page 4

Isdn 2b1q interface
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U-BR1TE SPECIFICATIONS
Loop Interface:
Line:
2-Wire (TIP and Ring)
Operating Mode:
Full-duplex
Data Rate:
160 kbps total; 144 kbps available to customer
Signal Format:
2B1Q
Output Amplitude:
2.5 Volt, Zero-to-Peak
Tx Source Impedance:
As per ANSI T1.601-1992
Rx Source Impedance:
As per ANSI T1.601-1992
Receiver Sensitivity:
As per ANSI T1.601-1992
DS1 Facility Interface: Fully compatible with WECO D4 Channel Bank Equipment
Network Compatibility:
ISDN and other digital service, according to TR-NWT-000397
Faceplate Controls and Indicators:
Controls:
B1/B2
LP/CR
Select
Test
Indicators:
Four-character display is used to select loopback address and display loopback status.
Test:
Bantam test jacks for TPI 108/109 RT II or equivalent test sets
Display
ACTV
IN
PROG
LOOP
lS
DOWN
ADR#
LOOP
BACK
NT1
LOOP
BACK
B1
LOOP
BACK
B2
LOOP
BACK
2B+D
LOOP
BACK
BANK
CR
FAIL
XMIT
CR
SIDE
XMIT
LP
SIDE
MADE
B1
LPBK
MADE
B2
LPBK
CHCK
TEST
SET
FAR
END
OPEN
Mechanical:
Size:
4.4" H x 10" D x 1.4" W
Weight:
10 oz.
Mounting:
Mounts in WECO D4 Channel Bank/SLC-96 terminals
Power:
Current Drain
-48 V: 40 m A (in LUNT mode)
5V: 5 m A Display OFF (normal operating mode)
45 m A Display ON
ORDERING INFORMATION: The part numbers for the U-BR1TE are provided below.
901 Explorer Boulevard • Huntsville, Alabama • 35806-2807 • (205) 971-8000 • FAX (205) 971-8699
Bearer channel Select switch
Loop or carrier direction Select switch
Scrolls through valid loopback addresses on four-character display
Activates selected loopback
Interpretation
Activation in progress, the 2-wire loop is attempting to activate.
The 2-wire loop is not activated.
A distant unit with address # is in a loopback commanded from this card.
The NT1 is in loopback as commanded from this card.
This card is currently looping back channel B1 as commanded from a far unit.
This card is currently looping back channel B2 as commanded from a far unit.
This card is currently looping back all channels as commanded from a far unit.
Bank carrier fail, the channel bank is not receiving data from the T carrier.
Transmit carrier side, forcing the injection of 64 kbps data into a Bearer channel from the front panel Bantam jack into the carrier direction.
Transmit loop side, forcing the injection of 64 kbps data into a Bearer channel from the front panel Bantam jack into the loop direction.
Made B1 loopback, manually forced the Bearer channel B1 loopback in both the network and customer directions.
Made B2 loopback, manually forced the Bearer channel B2 loopback in both the network and customer directions.
Check test set, ensure test set Tx probe is properly inserted into faceplate Bantam jack and configured as NEAR LOGIC.
The unit on the far end of the carrier is not present or not configured properly.
Equipment
Part Number
U-BR1TE
1100020L1
U-BR1TE MLT
1100020L2
BR1/8 BR1TE BANK
1150018L1
On-Card Dissipation
1.95 W maximum
61100.020L1-8C
August 1993
Printed in U.S.A.
Specifications subject to change without notice.

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