Prontonet User’s Manual v410 102
speed rates when the audio compression rate is high, that is, when the audio
speed transmission is low because the ancillary data are included in the
compressed audio frame at the expense of replacing audio bits.
When the ProntoNet works as “dual codec” there are two RS232 ports. The
port A is assigned to the line 1 and the B port is assigned to the line 2.
GPIO port: This port has general purpose inputs and outputs to allow end to
end remote control. They work in transparent mode, that is, the outputs
follow their homologous inputs.
V.12 How the backup mode works
ProntoNet when is configured as IP codec or X21 codec (NET = IP o NET = X21)
can use the ISDN connection as backup line, that is, the ISDN will be an
alternative communication line when the IP or X21 line is dropped.
This option is available in the SYS menu:
V.12.1 MASTER & SLAVE Configuration
The backup operation is based on the interaction between two ProntoNets, 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 ProntoNet 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 or X21 communication) has been
re-established.
The ProntoNet 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 ProntoNet backup application to note the
differences between both working modes.
SYS MENU »
{LOOP}PLL BACKUP FAN
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