IQ 710 System Manual
© 2002 ADTRAN, Inc.
61202800L1-1B
IQ 710
Section 6, Configuration Guides
Page 154
DBU Criteria
1.
From the screen shown in Figure 6, press the down arrow to select
DBU C
RITERIA
. The menu
screen shown in Figure 7 is displayed. The default values for the parameters on this screen are
shown.
Figure 7. DBU Criteria Menu
2.
Use the right arrow to select
W
ITH
N
ETWORK
F
AILURE
; then press
<Enter>
. Use the down arrow to
select
E
NABLE
; then press
<Enter>
. This allows the IQ unit to enter dial backup in the event that the
network T1 line goes into alarm.
W
ITH
N
O
LMI
is enabled by default. With this option enabled, the IQ 710 unit will go into dial
backup when the
F
RAME
R
ELAY
S
IGNALING
S
TATE
is down.
3.
Press the down arrow to select
W
ITH
PVC I
NACTIVE
; then press
<Enter>
. Use the down arrow to
select
E
NABLE
; then press
<Enter>
.
This is a global setting that affects all of the PVCs in the IQ 710 DLCI table (under
N
ETWORK
PVC
O
PTIONS
). A PVC is advertised as Inactive by the frame switch in the CO when there is a problem
at the remote end of the frame circuit. With this option enabled, the IQ 710 will attempt to estab-
lish a dial backup call with the remote unit when its corresponding DLCI is advertised as Inactive
(provided that DLCI does not have
DBU O
N
I
NACTIVE
disabled under the
N
ETWORK
PVC
options).
Once these parameters have been configured properly, the
DBU C
RITERIA
screen should look
exactly like Figure 8.