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- Stand-alone
ISDN backup units for customer premises
and small PoP sites. Designed to
provide immediate ISDN backup for
leased lines, Frame Relay and TETRA
networks with objective of maintaining
user sessions, DLIs etc. Support
for V.35, X.21/V.11, G.703 and
channelised G.704 services.
- The DB120 chassis-based system
with a number of backup and other
cards gives customers the ability
to use this in larger locations
and PoP sites with more circuits
and ISDN. Cards for backup of V.35,
V.11/X.21, G.703 and G.704 services.
The DB120 inter-works with all
the stand-alone units.
- The DataBand
Dial range of inverse
muxes (or multiplexers) delivers
N*64kbps V.35, X.21/V.11 and G.703
circuits on-demand using multiple
ISDN “B” channels from
BRI or PRI.
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General
information in Leased
Line Backup Application area
Leased line backup Application Note
Frame
Relay backup application note.
Brief movie on ISDN backup
How quickly can ISDN backup be
established?
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