ProntoNetLC User Manual
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How does the ProntoNetLC work?
Given the different nature of the three communication standards that the
ProntoNetLC supports, the unit has to adopt different configurations while
adapting to the characteristics of each network. What’s more, in certain
situations, ProntoNetLC 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 ProntoNetLC unit works under different
configurations, especially the more unusual ones.
VI.1 Selecting the communications interface
Firstly, when we refer to the ‘communications interface’ we are always referring
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 ProntoNetLC:
a. ProntoNetLC operating as “IP CODEC”: The ProntoNetLC will be
configured to establish communications via the Ethernet port using the
IP protocol.
b. ProntoNetLC operating as “ISDN CODEC”: The ProntoNetLC will be
configured to establish communications via a basic access ISDN
connection. The ProntoNetLC has a multi-protocol ISDN terminal
socket ready for connection to a basic rate 2B+D interface.
c. ProntoNetLC operating as “X21 CODEC”: The ProntoNetLC can be
configured to establish communications via dedicated digital lines at
64, 128, 192, 256, 384 and 576 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.
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