Verilink QPRI 2921 (880-503143-001) Product Manual - Manual (Page 17)

Verilink QPRI 2921 2-1
Chapter
2
Quick Set-Up
This chapter provides step-by-step procedures as an example for
setting up your QPRI 2921 module and creating an ISDN dial-
backup circuit.
NOTE: Use the following information as a guide for the
configuration process. Complete descriptions of the various
screen options and suggestions for their applicability to your
situation are given in the following chapter.
For ISDN functionality, the QPRI 2921 ASCII interface must be
accessed from the NCM 2000 module. The NCM 2000 uses the
QPRI 2921 to allow access to ISDN dial-backup circuits or alternate
T1 circuits under defined line failure conditions. When installed in
a Multi-Line Shelf (MLS), the NCM/QPRI combination provides
backup network access for other application modules on the shelf.
NOTE: For the most effective and efficient set-up, have all required
planning data such as your intended use, network (telco)
provider specifications, channel and line requirements,
circuit configurations, and other important information
handy. For your convenience, worksheets are provided on the
following page and the beginning of this manual in addition
to those available in the AS2000 Basics Manual, Chapter 2—
Site Planning.
For information on accessing the QPRI 2921 directly with the
Craft/Local port, see the DCSU 2911 User Manual.
Figure 2-1 Hypothetical ISDN Dial-Backup Configuration
ISDN
CO
PRI PRI
NCM
QPRI
NCM
QPRI