PortaNet User Manual
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Line 2 will connect but the audio will still not be decoded since these
modes are not allowed on Line 2. The display shows “
STOP
” to indicate
the situation.
IX.10
How the backup mode works
PortaNet when is configured as IP codec (NET = IP) can use the ISDN
connection as backup line, that is, the ISDN will be an alternative communication
line when the IP line is dropped.
This option is available in the SYS menu:
IX.10.1
MASTER & SLAVE Configuration
The backup operation is based on the interaction between two PortaNets, one of
them working in MASTER mode and the other end configured as SLAVE. The
user must configure each unit in one of these modes before to enable the
backup facility. The option SYS – BACKUP - MODE allows the selection of Master
or Slave.
Once the backup option has been validated, the PortaNet configured as MASTER
monitors continuously if the main line is working appropriately in order to decide
if the main line is dropped
or, in case the unit is working in backup mode (ISDN
connection), if the main line (IP) has been re-established.
The PortaNet MASTER uses the information stored in the index 1 of the
phone book to configure the unit and to call to the stored numbers.
The Pronto Backup SLAVE only works in backup mode depending on if there is
communication by the ISDN line.
Please, find below an example of PortaNet backup application to note the
differences between both working modes.
L 1
C O N N E C T E D F R A M E D
L 2
C O N N E C T E D S T O P
S Y S M E N U »
{ L O O P } P L L B A C K U P F A N