Product Specs

Packet Modem Spec Rev6.doc 6 06/09/00
2. Module Description
<Venkat Rangan has the original drawing>
Globalstar Packet Data
Module
Interface
Port
D
M
Por
t
Field
Upgrad
e
Port
DC
Power
5.2V-
16V
User
Data
Applicatio
n
User
Module
Controlle
r
Serial
Control
port
Serial
Data
Port
Outdoor Unit
(Antenna)
Diagnostic
Monitor/
Programming Support
Tool
The GSP 1620 Packet Data Modem is a bare board “sandwich” stack of CCAs (Circuit
Card Assemblies) comprised of a Globalstar RF board, and a Globalstar Digital board.
The digital board contains all the digital electronics required by the modem and some of
the power management electronics. The RF board contains the baseband converters,
receiver, RF power amp, upconverters and downconverters, TCXO, synthesizers, and the
remaining power electronics.
The module is offered without a mechanical enclosure as it is anticipated that the OEM
VAR will be integrating and packaging the module with the end users application.