Instruction manual

Section 4 User Interface Guide Total Access 850 System Manual
112 © 2004 ADTRAN, Inc. 64203376L1-1B
Sink positions. Default is LULT.
Figure 7. UBR1TE Network Configurations
INTERFACE (UBR1TE) > CONFIG > SERVICE
Allows the user to select the ISDN channels transmitted over the T1 facility. Each channel requires one
DS0 of the T1 in which to transmit and receive data. All switched applications will require the D channel.
Choices are 2B+D, B1+D, B2+D, B1+B2, B1, B2, and D. Default is 2B+D.
INTERFACE (UBR1TE) > CONFIG > ZERO BYTE SUB
For proper operation, the ZBS (zero byte substitution) for two U-BR1TE ports connected by a T1 facility
must be the same value. The ENABLE parameter for ZBS must be selected if the T1 is using AMI line
coding. If the T1 facility is using B8ZS line coding, the DISABLE parameter may be chosen. Default is
E
NABLED.
The user must provision the proper number of consecutive DS0s of the T1 facility for
proper operation.
ISDN
S
witch
U-BR1TE
Port
TA 850
U-BR1TE
Port
TA 850
Customer
NT1
U-BR1TE
Port
TA 850
Customer
NT1
Customer
NT1
U-BR1TE
Port
TA 850
2-Wire
T Carrier
2-Wire
Loop
2-Wire
2-Wire
T Carrier
T Carrier
2-Wire
Loop
2-Wire
Loop
Adjacent to
Switch
Adjacent to
Customer
Adjacent to
Switch
Tandem Office
(Source)/U-Repeater
Tandem Office (Sink)
Adjacent to Customer
U-BR1TE
Port
TA 850
U-BR1TE
Port
TA 850
L
U
L
T
L
U
N
T
L
U
L
T
L
U
L
T
L
U
N
T
U-BR1TE
Port
TA 850
2-Wire
2-Wire
T Carrier
Adjacent to
Switch
Tandem Office
(Source)/U-Repeater
U-BR1TE
Port
TA 850
U-Repeater
L
U
L
T
L
U
N
T
L
U
N
T
RP