Prontonet User’s Manual v410 88
How does the ProntoNet work?
Given the different nature of the three communication standards that the
ProntoNet supports, the unit has to adopt different configurations while adapting
to the characteristics of each network. What’s more, in certain situations,
ProntoNet is capable of dealing with two independent communications at the
same time. This can be a cause of confusion for the user, who may be expecting
a certain behaviour or action from the unit but observes another. This chapter is
therefore a practical guide to help in understanding just how the ProntoNet unit
works under different configurations, especially the more unusual ones.
V.4 Selecting the communications interface
Firstly, when we refer to the ‘communications interface’ we are always refering
to the communications port that is used for the transmission of ‘audio data’. The
NET option in the main menu is for setting this up. There are three settings
available with the ProntoNet:
a. ProntoNet operating as “IP CODEC”: The ProntoNet will be configured
to establish communications via the ethernet port using the IP
protocol.
b. ProntoNet operating as “ISDN CODEC”: The ProntoNet will be
configured to establish communications via a basic access ISDN
connection. The ProntoNet has a multi-protocol ISDN terminal socket
ready for connection to a basic rate 2B+D interface.
c. ProntoNet operating as “X21 CODEC”: The ProntoNet can be
configured to establish communications via dedicated digital lines at
64, 128, 192, 256 and 384 Kbps.
The Ethernet interface is always available for remote control of the unit, even
if it is configured to operate as an ISDN or X21 codec.
You should first select the network type - i.e. the communications interface - to
be used for audio data transmission and reception. The menu will only show the
configuration options relevant to the network type selected. Of course, there are
a number of general parameters that will be the same across all network types
and so will not be affected when the network type is changed.
Chapter VI
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