Spectra Precision SP90m, Руководство пользователя

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Embedded NTRIP Caster
Introduction
The Embedded NTRIP Caster is a firmware option allowing
you to build your own NTRIP network solution around the
SP90m receiver.
The embedded NTRIP caster can handle a total of 100 users
and 10 mount points. The number of 100 users should be
understood at the total number of possible users, irrespective
of the mount points they are using. For example, if 90 users
are connected to mount point
n , then only a total of 10 users
can be connected to any of the other possible mount points.
One of the distinguishing features of SP90m is its capacity to
accommodate internally two NTRIP servers directly “feeding”
the embedded NTRIP caster. The other NTRIP servers, if any
(up to 8), will therefore be all external to the SP90m.
• The two internal NTRIP servers will both provide
correction data from the “base” section of the SP90m
(see figure below), typically in different formats.
• Internal NTRIP server 1 uses Ethernet port P to deliver its
correction data to the caster. The correction data are
internally routed from the base either through the internal
modem or directly via Ethernet.
• Internal NTRIP server 2 uses Ethernet port Q to deliver its
correction data to the caster. The correction data can only
be routed internally from the base via Ethernet.
The figure below shows the internal architecture of the
SP90m when the
Embedded NTRIP Caster firmware option is
enabled and running and two internal NTRIP servers are also
set up and running.