Integrator’s Reference Manual
2-2 80-99208-1 Rev. D
Connecting Hardware Components
The setup process for the GSP-1620 modem includes:
• A quick tour of the modem
• Connecting the modem cables
❑Connecting the Interface cable (Data port, Contr ol
port, power) to the modem and to your PC
❑Connecting the antenna cables (Tx, Rx ) to the modem
❑Connecting the Diagnostic cable (if you want to power
the modem from its AC adapter, service-program the
modem, or monitor some modem functions)
• Connecting and mounting the antenn a
• Mounting the modem (optional)
• Grounding the system
• Providing power to the modem
• Setting up HyperTerminal to talk to the modem and
testing your connection
Tip
A Windows PC is recommended for modem bench setup and
application development. Modems must be s ervice programmed using
the Globalstar UT Program Support Tool, which is a Windows soft ware
application.

A Quick Tour of the Modem

For quick bench set-up, first remove the GSP-1620 modem
from the GSP-1620 Modem Integrator’s Kit.
Caution
When handling the modem, observe precautions necessary to avoi d
damage by electrostatic discharge (ESD).
Compare the GSP-1620 modem to Figure 2-1. This
illustration shows the connectors and compo nents you will
use in the following sections.