Integrator’s Reference Manual
1-6 80-99208-1 Rev. D
For example, in the electric utility industry, a SCADA
application using the GSP-1620 modem could remo tely turn
on a pump, close a switch, open a gate, request a new meter
reading, monitor line voltag e, or report on power outages.
Conceptual Overview
Figure 1-3 depicts a conceptual overview of the QUALCOMM
Globalstar GSP-1620 Satellite Data Modem, including its
ports and antenna.
Figure 1-3. Conceptual Diagram of GSP-1620 Modem
Interface Port
DC Power
5.6V-16V
Serial Control Port Serial Data Port
Outdoor
Antenna
UT Program Support Tool
Diagnostic Port
(UTPST)
Tx
Rx
GSP-1620
Modem
SCADA Application Terminal
Data
or AT
commands
for service programming
Modem AT
commands