61200305L2-1B
© 2004 ADTRAN, Inc.
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CFG-1
Dial Backup for Dedicated T1 Circuits
Introduction
Dial backup (DBU) is an ATLAS 550 capability which allows you to create alternate data connections in
the unit to ensure data integrity in the event of a primary circuit failure. This note explains what dial
backup is and how to configure an ATLAS 550 to support it. There are three steps to configuring the
ATLAS 550 for dial backup:
1. Configure the Dedicated T1 Data Link
2. Configure the Dial Backup PRI
3. Configure the Dial Backup Endpoint
Before You Begin
This application requires an ATLAS 550 containing firmware B.01 or later, a V.35 Nx Module
(P/N 1200311L1), and a BONDing Module (P/N 1200326L1), if bonding of B channels is required.
Description
The ATLAS 550 will either originate or answer a dial backup call upon detection of a network failure or
data failure on the T1/E1. A network failure is any physical layer T1/E1 failure, such as red alarm or loss
of signal (LOS). A data failure is detected when the ATLAS 550 no longer receives keep-alive responses
over the 8K inband channel. The data criteria for dial backup can only be used when configured to monitor
the inband channel.
The primary link to be backed up must be a data link to a V.35 port. Dedicated dial backup
for T1 ports is not currently supported.
Содержание ATLAS 550
Страница 16: ...Table of Contents ATLAS 550 System Manual 16 2004 ADTRAN Inc 61200305L2 1B ...
Страница 24: ...Section 1 System Description ATLAS 550 System Manual 24 2004 ADTRAN Inc 61200305L2 1B ...
Страница 62: ...Section 3 Network Turnup Procedure ATLAS 550 System Manual 62 2004 ADTRAN Inc 61200305L2 1B ...
Страница 308: ...Section 4 User Interface Guide ATLAS 550 System Manual 308 2004 ADTRAN Inc 61200305L2 1B ...
Страница 310: ...Section 5 Detail Level Procedures ATLAS 550 System Manual 310 2004 ADTRAN Inc 61200305L2 1B ...
Страница 320: ...Section 5 DLP 4 ATLAS 550 System Manual 320 2004 ADTRAN Inc 61200305L2 1B ...
Страница 326: ...Section 5 DLP 6 ATLAS 550 System Manual 326 2004 ADTRAN Inc 61200305L2 1B ...
Страница 330: ...Section 5 DLP 7 ATLAS 550 System Manual 330 2004 ADTRAN Inc 61200305L2 1B ...
Страница 348: ...Section 5 DLP 14 ATLAS 550 System Manual 348 2004 ADTRAN Inc 61200305L2 1B ...
Страница 351: ...61200305L2 1B 2004 ADTRAN Inc 351 CONFIGURATION GUIDES CFG 1 Dial Backup for Dedicated T1 Circuits 353 ...
Страница 352: ...Section 6 Configuration Guides ATLAS 550 System Manual 352 2004 ADTRAN Inc 61200305L2 1B ...
Страница 364: ...Section 6 CFG 1 ATLAS 550 System Manual 364 2004 ADTRAN Inc 61200305L2 1B ...
Страница 378: ...Section 7 System Event Logging ATLAS 550 System Manual 378 2004 ADTRAN Inc 61200305L2 1B ...
Страница 388: ...Section 8 ADTRAN Utilities ATLAS 550 System Manual 388 2004 ADTRAN Inc 61200305L2 1B ...
Страница 412: ...Section 9 MIBs ATLAS 550 System Manual 412 2004 ADTRAN Inc 61200305L2 1B ...