Verilink DIU 2130 (880-503297-001) Product Manual - Manual (Page 50)

T1 Dial Backup Option Overview
5-2 Verilink
Features The T1 Dial Backup Option offers the following features:
• Backs up n
×
56 or n
×
64 kbit/s T1 circuits
• Automatically dials and switches to the backup circuit on loss of
frame or Dataphone Digital Service (DDS) Abnormal Station Code
(ASC)
• Failed circuit remains accessible for troubleshooting
• Initiates the backup from either end in the event of a circuit failure
• Dial backup automatic mode can be controlled manually
• The Verilink Access Manager 2000 (AM2000) monitors the status
of the switching and manages alarms and testing
• Available in pre-configured and field upgrade versions
• Downloads into existing DIU 2130 plug-in module using Verilink
Advanced Programmable Architecture™ (APA)
Available
configurations
The T1 Dial Backup Option is a factory-ordered item available in
three forms:
• Plug-in module (DIU 2130/DBU)
• EPROM upgrade kit
• Download upgrade kit
You can download the software upgrade version of the T1 Dial
Backup Option into the RAM of a standard DIU 2130.
Compatibility
and
requirements
TheT1 Dial Backup Option is compatible with installed-base AS2000
hardware. The T1 Dial Backup Option requires the following:
• Verilink DIU2130/DBU at the central site
• Compatible DBU or another DIU 2130/DBU at the far-end
• A DCE to the dial backup circuit in the form of a dedicated Verilink
ConnecT 56K DSU, user-supplied analog modem, or user-supplied
ISDN BRI DSU device
• SW56, analog modem, or ISDN BRI circuit available at each end
• NCC plug-in module of Rev. 4.6 or higher
• AM2000 (Release 3.2A or higher) installed in a PC connected to
the AS2000 Node Controller and Channel Service Unit (NCC)
plug-in module.
AM2000 is used for downloading the upgrade, and for
configuring and testing of the backup circuit. Once the backup
is operational, you can use the AM2000 for monitoring,
managing, and testing.