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Chapter 7. Configuring the DCE Port

7-6 IQ Probe User Manual 61200214L1-20

DLCI

Enter the DCE port's DLCI. Range is 16 to 1007.

DBU DLCI

Enter the far end DLCI for each PVC used for dial backup. Only the IQ

Probe that originates the call is required to have this option set. Range is

16 to 1007.

DBU Phone Number

The phone number entry stores the phone number that is used when the

IQ Probe triggers auto dial backup in case of port or PVC failure. The

phone number should correspond to a location that is equipped with an

“Adtran Safety Net” device that is capable of restoring the PVC which is

designated by the DBU DLCI element.

If auto DBU is triggered by port failure, then the DBU C

ALL

RDER

ele-

ment determines the order of a dialing list for alternate backup locations.

DBU on Inactive

This option works in conjunction with the dial backup criteria option W

ITH

PVC I

NACTIVE

. For DBU O

NACTIVE

option to have an effect on auto DBU

operation, the W

ITH

PVC I

NACTIVE

option must be set to E

NABLE

. See Dial

Backup Configuration on page 8-1.

If DBU

NACTIVE

is set for E

NABLED

and the PVC designated by the

DLCI element in the table entry goes to an inactive or unknown state, the

IQ Probe will dial the phone number designated by the DBU P

HONE

BER

element in the table entry.

ROUP

is a special case in which all PVCs that are part of a group must be

inactive or unknown before the auto DBU process is triggered. This special

case is treated as a port failure in which DBU C

ALL

RDER

entry applies.

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