Section 10: POTS Operation and Usage Tips
T
ieline
Page 74
T E C H N O L O G Y
Figure 20: New POTS G3 Module
Recommendation for Bonded Mono & Bonded Stereo Connections
Where possible we recommend that you use the same type of POTS modules in
the dialing codec when creating bonded connections between two codecs (i.e.
bonded mono and bonded stereo connections). It is possible that bonded
connections may not bond reliably when dialing bonded connections and using
different POTS modules. To circumvent this possibility use the same type of
POTS modules in the dialing codec. If you must use different types of POTS
modules, always dial the first connection of a bonded connection from a POTS
G3 module. (Please note: The on-board POTS hardware on an
i
-Mix
G
3
codec is
the same as a POTS module, not a POTS G3 module. Dial this connection
second for bonded connections).
10.11.
Stability of Tieline POTS Modules
Both
T
ieline
POTS modules create stable connections because they measure the
amount of fluctuation in line quality before working out the optimal bit-rate
setting to connect at. This provides very stable POTS connections.
10.11.1.
Features of the POTS G3 Module
DAAs are required for codecs, and any other devices, that connect to
POTS/PSTN networks. The new
T
ieline
POTS G3 module contains a
SmartDAA™
12
(Smart Data Access Arrangement), which is different to the
original
T
ieline
POTS module DAA.
DAAs are line interfaces that isolate electronic devices from voltages on
phone lines. The new SmartDAA is more tolerant of variations in line voltage.
In addition, when you select the country that you are dialing from in your
codec, the SmartDAA automatically adjusts for the line voltage present in
each particular country.
Important note:
Please ensure that the
Country Selection
in
Unit Options
is set correctly for
your POTS and POTS G3 modules to ensure the correct settings are
programmed into the codec before dialling connections.
12
SmartDAA is a trademark, patent pending, of Conexant Systems, Inc in the United States and/or
other countries.
