This manual is based on the
GSP-1620 Satellite Data Modem.
Software or hardware changes may
have occurred after this printing.
QUALCOMM reserves the right to make changes in
hardware, software, and technical and product specifications
without prior notice.
QUALCOMM Incorporated
5775 Morehouse Drive
San Diego, CA. 92121-1714
U.S.A.
Copyright © 2001 QUALCOMM Incorporated.
All rights reserved. Printed in the United States of America.
This technology is controlled by the United States Government. Diversion contrary to U.S.
law prohibited.
QUALCOMM® is a registered trademark of QUALCOMM Incorporated.
Globalstar is a trademark of Loral QUALCOMM Satellite Services, Inc.
QUALCOMM Globalstar GSP-1620 Satellite Data Modem Integrator’s Reference Manual
80-99208-1, Rev. D
April 17, 2001
TABLE OF CONTENTS
Who Should Use This Manual .................................................................. xvii
How This Manual Is Organized............................................................... xviii
Notational Conventions ............................................................................. xix
Abbreviations and Acronyms...................................................................... xx
Related Documentation............................................................................ xxiii
Cautions and Warnings ........................................................................... xxiv
Getting Started ........................................................................................1-1
GSP-1620 Modem Overview ...................................................................... 1-2
Typical Modem SCADA Applications ......................................1-3
Conceptual Overview ................................................................1-6
What’s in the Modem Integrator’s Kit?..................................................... 1-7
What You May Need in Addition to the Kit ............................1-9
Quick Bench Set-Up ...............................................................................2-1
Connecting Hardware Components........................................................... 2-2
A Quick Tour of the Modem .....................................................2-2
Connecting the Modem Cables .................................................2-4
Connecting the Modem Interface Cable ............................2-4
Connecting Antenna Cables ...............................................2-6
Connecting the Diagnostic Cable .......................................2-7
Connecting and Mounting the Antenna ..................................2-9
Mounting the Modem .............................................................2-11
Grounding the System ............................................................2-11
Providing Power to the Modem ............................................................... 2-12
Setting Up HyperTerminal to Talk to the Modem ................................. 2-15
Testing the Modem Setup ......................................................2-16
Resetting or Powering Off the Modem ..................................2-18
Where to Go Next ..................................................................................... 2-20
80-99208-1 Rev. D iii
Integrator’s Reference Manual
Service-Programming Modems ...........................................................3-1
UTPST Overview........................................................................................ 3-2
Using the UTPST ....................................................................................... 3-2
Re-programming Default Parameters....................................................... 3-4
Bulk-Programming Modems...................................................................... 3-7
Upgrading Modem Software...................................................................... 3-7
Making Simple Data Calls ....................................................................4-1
Checking Modem Status............................................................................ 4-1
Making Simple Packet Data Calls ............................................................ 4-3
Making a Call from the Data Port ...........................................4-4
Entering Online-Command Mode ............................................4-5
Developing Modem Applications ........................................................5-1
Recommended Development Tools............................................................ 5-2
SCADA Application Components.............................................................. 5-2
Packet/Asynchronous Data Overview ....................................................... 5-4
Modem Application Scenarios ................................................................... 5-5
Working with Modem Features................................................................. 5-7
Using Data and Control Ports .................................................5-7
Data and Control Port Configurations ..............................5-8
Port Arbitration Behavior ..................................................5-9
AT Command Processing Modes ......................................5-12
Port(s) Affected by AT Commands ...................................5-13
Port Activation (DTR) Changes during Operation .........5-15
Port Use During Power On and Power Off ......................5-16
Globalstar Satellite Service ...................................................5-16
Short Messaging Service (SMS) .............................................5-17
SMS Alerts ........................................................................5-17
SMS Message Field Information ......................................5-18
SMS AT Commands ..........................................................5-18
Using SMS for Mobile-Terminated Calls ........................5-18
Globalstar Service Alerts .......................................................5-19
Service Status Message ..........................................................5-20
Position Location Determination ...........................................5-21
Using Packet Data ................................................................................... 5-21
Data Rate and Throughput ....................................................5-22
Networking Software and PPP Sessions ...............................5-22
Interoperability with Different Operating Systems .......5-22
iv 80-99208-1 Rev. D
T able of Contents
IP Addressing for the GSP-1620 Modem ...............................5-23
Dynamic IP Addressing ....................................................5-23
Fixed IP Addressing .........................................................5-24
Finding IP Addresses ........................................................5-24
Virtual Private Network Service .....................................5-24
Dormant Mode Service ...........................................................5-25
Mobile-Originated Packet Data Calls ....................................5-27
Mobile-Terminated Packet Data Calls ..................................5-27
Answering Calls Using the Data Port Only ....................5-28
Answering Calls Using the Data and Control Ports .......5-29
Roaming and Packet Data Service ........................................5-29
Using Asynchronous Data ....................................................................... 5-30
Data Rate and Throughput ....................................................5-32
Mobile-Originated Asynchronous Data Calls ........................5-32
Mobile-Terminated Asynchronous Data Calls ......................5-33
Accessing Packet Data Over an Asynchronous
Connection ...............................................................................5-34
Roaming and Asynchronous Data Service ............................5-35
Typical Modem Initialization Strings ..................................................... 5-36
AT Command Reference ........................................................................6-1
AT Command Quick Reference Tables...................................................... 6-2
AT Commands Overview ........................................................................... 6-7
Command Alphabet ..................................................................6-7
Case Sensitivity ........................................................................6-7
Command Line Format ............................................................6-7
Command Syntax .....................................................................6-8
Basic AT Commands .................................................................................. 6-8
Results Returned ......................................................................6-9
Command Echo (E) ...................................................................6-9
Get Info (I) .................................................................................6-9
Monitor Speaker Loudness (L) ...............................................6-10
Monitor Speaker Mode (M) ....................................................6-11
Select Pulse Dialing (P) ..........................................................6-11
Result Code Suppression (Q) ..................................................6-12
Select Tone Dialing (T) ...........................................................6-13
DCE Response Format (V) .....................................................6-13
Result Code Selection Command (X) .....................................6-14
Reset to Default Configuration (Z) ........................................6-15
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Integrator’s Reference Manual
DCE Received Line Signal Detector Behavior (&C) .............6-16
DTE Data Terminal Ready Behavior (&D) ...........................6-16
Set to Factory-Defined Configuration (&F) ...........................6-17
Basic Action Commands .......................................................................... 6-18
Answer Incoming Call (A) ......................................................6-18
Repeat Last Command (A/) ....................................................6-19
Dial (D) ....................................................................................6-20
Hook Control (H) ....................................................................6-22
Return to Online Data Mode (O) ...........................................6-23
Basic S-Registers...................................................................................... 6-24
Results Returned ....................................................................6-24
Automatic Answer (S0) ...........................................................6-25
Command Line Termination Character (S3) ........................6-25
Response Formatting Character (S4) ....................................6-26
Command Line Editing Character (S5) .................................6-27
Pause Before Blind Dialing Time (S6) ...................................6-27
Connection Completion Timeout (S7) ....................................6-28
Comma Dial Modifier Time (S8) ............................................6-29
Carrier Detect Threshold Timeout (S9) .................................6-29
Carrier Loss to Disconnect Timeout (S10) ............................6-30
DTMF Tone Duration and Spacing (S11) ..............................6-31
Globalstar-Specific S-Register Extensions.............................................. 6-31
Silent Retry Timeout (S777) ..................................................6-31
Extended Configuration AT Commands ................................................. 6-32
Set Forward MUX Option (+CMUX) .....................................6-32
Set Rm Interface Protocol (+CRM) ........................................6-33
Get Modem User Terminal ESN (+GSN) ..............................6-34
Set Character Framing (+ICF) ..............................................6-35
Set Local Flow Control (+IFC) ...............................................6-36
Set Rm Interface Command Baud Rate (+IPR) ....................6-38
Online-Command Mode Commands........................................................ 6-40
Change from Online to Online-Command Mode (+++) .........6-40
Asynchronous Data through Gateway IWF Commands ........................ 6-41
Set Remote Config String (+CFG) .........................................6-41
Data Compression Control Command (+DS) ........................6-42
Error Control Selection Command (+ES) ..............................6-45
Modulation Selection Command (+MS) .................................6-47
vi 80-99208-1 Rev. D
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Dormant Mode Commands ...................................................................... 6-48
Set Dormant Mode Timeout Value (+CTA) ...........................6-49
Packet No Dial ($QCPKND) ..................................................6-50
SMS Commands ....................................................................................... 6-51
SMS Move/Delete ($QCSMSM) ..............................................6-51
SMS Print ($QCSMSP) ..........................................................6-52
SMS Lock ($QCSMSL) ...........................................................6-56
SMS Alert ($QCSMSA) ..........................................................6-57
SMS Info ($QCSMSI) .............................................................6-58
Error Log Services Commands ................................................................ 6-59
Retrieve Error Log ($QCERR) ...............................................6-59
Clear Error Log ($QCCLR) ....................................................6-60
Service Status Commands....................................................................... 6-61
Service Alert ($QCSA) ............................................................6-61
Service Status ($QCSTATUS) ................................................6-62
Special Calls and Services Commands.................................................... 6-64
Time of Day ($QCTOD) ..........................................................6-64
Position Location Service ($QCPLS) .....................................6-66
Markov Statistics ($QCMSTATS) ..........................................6-68
Set Mode ($QCMODE) ...........................................................6-69
Protocol Stack Modification Commands ................................................. 6-70
TCP Stack Changes ($QCTCP) ..............................................6-70
Use Van Jacobsen Header Compression ($QCVJ) ................6-73
Integrating GSP-1620 Modems
into OEM Products .................................................................................7-1
Integrating Modems into Products............................................................ 7-2
Modem Mechanical Description ...............................................7-3
Modem Board Layout .........................................................7-3
Modem Dimensions and Weight ........................................7-6
Modem Antenna Connectors ....................................................7-6
Data and Control Ports ............................................................7-6
DTR/DSR Signal and Power On/Off ..................................7-7
Changing Data and Control Port Configuration ...............7-8
Control Port Signals ...........................................................7-8
Data Port Signals ................................................................7-9
DB-25 Data and Control Port Pinouts ...............................7-9
Diagnostic Port .......................................................................7-12
Diagnostic Port Pinouts ....................................................7-13
80-99208-1 Rev. D vii
Integrator’s Reference Manual
DC Power ................................................................................7-15
Surge Protection ...............................................................7-16
EMI Filtering ....................................................................7-16
Power Consumption ..........................................................7-16
Power-On ...........................................................................7-17
Power-Off ..........................................................................7-18
Hard Power Reset .............................................................7-18
Grounding ...............................................................................7-18
Modem Mounting Guidelines .................................................7-19
QUALCOMM Mark on OEM Enclosures ........................7-20
Integrated Product Regulatory Labeling .........................7-21
Mounting Antennas On-Site.................................................................... 7-22
Modem Antenna Specifications ..............................................7-22
Antenna Dimensions and Weight ....................................7-23
Antenna Depiction ............................................................7-23
Antenna Cable Specifications ................................................7-25
Calculating Antenna Cable Length .......................................7-27
Mounting Antennas at the Field Site ....................................7-27
Finding a Good Antenna Location ...................................7-27
Securing Antenna Cables .................................................7-28
Mounting and Sealing Antennas on Flat Surfaces .........7-28
Mounting and Sealing Antennas on Poles ......................7-29
Mounting Multiple Antennas ...........................................7-29
Environmental Specifications.................................................................. 7-30
GSP-1620 Modem Environments ...........................................7-30
Temperature/Humidity ..........................................................7-30
Operational .......................................................................7-30
Non-Operational ...............................................................7-30
Thermal Radiation .................................................................7-31
Altitude ...................................................................................7-32
Operational .......................................................................7-32
Non-operational ................................................................7-32
Vibration .................................................................................7-32
Operational - Random ......................................................7-32
Non-Operational - Random ..............................................7-32
Operational - Sinusoidal ...................................................7-32
Non-Operational - Sinusoidal ..........................................7-32
viii 80-99208-1 Rev. D
T able of Contents
Mechanical Shock ...................................................................7-34
Operational .......................................................................7-34
Non-Operational ...............................................................7-34
Acoustic Noise .........................................................................7-34
Digital Data Connector Durability ........................................7-34
Applied Forces ...................................................................7-34
Mating cycles .....................................................................7-34
RF Connector Durability ........................................................7-35
Materials .................................................................................7-35
Shipping ..................................................................................7-35
Dielectric Resonator Antenna (DRA) Environments.............................. 7-35
Temperature/Humidity ..........................................................7-35
Operational .......................................................................7-35
Non-Operational ...............................................................7-36
Thermal Radiation ..................................................................7-36
Icing/Freezing Rain/Snow ......................................................7-37
Altitude ....................................................................................7-37
Operational .......................................................................7-37
Non-Operational ...............................................................7-37
Vibration .................................................................................7-37
Operational - Random ......................................................7-37
Non-Operational - Random ..............................................7-37
Mechanical Shock ...................................................................7-38
Operational .......................................................................7-38
Non-Operational ...............................................................7-38
RF Connector Durability ........................................................7-39
Materials .................................................................................7-39
Shipping ..................................................................................7-39
Troubleshooting ......................................................................................8-1
Globalstar Background ........................................................................A-1
Space Segment........................................................................................... A-2
Ground Segment........................................................................................ A-2
Coverage .................................................................................................... A-2
Carriers...................................................................................................... A-4
Distributors and OEMs for User Terminals ............................................ A-5
80-99208-1 Rev. D ix
Integrator’s Reference Manual
RF Certification/Restrictions .............................................................B-1
Certification............................................................................................... B-1
Federal Communications Commission (FCC) ........................B-2
European R&TTE Directive 1999/5/EC .................................. B-2
RF Restrictions.......................................................................................... B-3
Radio Astronomy Zones ........................................................... B-3
GPS Interference Elimination ................................................ B-3
Radio Frequency Exposure Restrictions .................................................. B-3
Electronic Device Restrictions.................................................................. B-4
Pacemakers .............................................................................. B-4
Hearing Aids ............................................................................ B-5
Other Medical Devices ............................................................. B-5
Warranty ..................................................................................................C-1
Product Support ....................................................................................D-1
QUALCOMM Globalstar Customer Service ............................................ D-1
Technical Support Information ............................................... D-1
Order Fulfillment Information ...............................................D-2
Website Information ................................................................D-3
Contacting QUALCOMM Customer Service ..........................D-3
Contact information ........................................................... D-4
Specification Summary ........................................................................ E-1
x 80-99208-1 Rev. D
LIST OF FIGURES
Figure 1-1. Typical Modem SCADA Application Using
Packet Data ...................................................................1-4
Figure 1-2. Typical Modem SCADA Application Using
Asynchronous Data .......................................................1-5
Figure 1-3. Conceptual Diagram of GSP-1620 Modem ..................1-6
Figure 2-1. Simplified Top View of GSP-1620 Modem ...................2-3
Figure 2-2. Modem Interface Cable Bridle .....................................2-4
Figure 2-3. Modem Diagnostic Cable ..............................................2-8
Figure 2-4. Antenna Base Showing Connectors ...........................2-10
Figure 5-1. DCE - DTE Application Components ...........................5-3
Figure 5-2. DTE-to-DCE Rm Interface ...........................................5-7
Figure 5-3. Asynchronous Data Call Components .......................5-31
Figure 7-1. GSP-1620 Modem Board Layout (Top View) ...............7-4
Figure 7-2. GSP-1620 Modem Board Layout
(Side/ Bottom Views) .....................................................7-5
Figure 7-3. QUALCOMM Mark for OEM Enclosures ..................7-21
Figure 7-4. DRA Side View ............................................................7-22
Figure 7-5. DRA View Showing Connectors .................................7-23
Figure 7-6. DRA Top and Side Views ............................................7-24
Figure 7-7. DRA Bottom View and Mounting Hole Locations .....7-25
Figure 7-8. GSP-1620 Modem Temperature/Humidity
Envelope ......................................................................7-31
Figure 7-9. GSP-1620 Modem Random Vibration Spectra ...........7-33
Figure 7-10. DRA Temperature/Humidity Envelope .....................7-36
Figure 7-11. DRA Random Vibration Spectrum .............................7-38
Figure A-1. Globalstar Coverage Availability ................................ A-3
80-99208-1 Rev. D xi
Integrator’s Reference Manual
xii 80-99208 -1 Rev. D
LIST OF TABLES
Table 1-1. Typical GSP-1620 Modem Applications ......................1-3
Table 1-2. Checklist of Modem Integrator’s Kit Components ......1-8
Table 2-1. DTR Switch Positions ...................................................2-8
Table 3-1. Service Programming Parameters You Must Set ......3-5
Table 3-2. Bulk Service-Programming Options ............................3-7
Table 5-1. Packet vs. Asynchronous Data ...................................5-4
Table 5-2. Port Signal Lines ..........................................................5-8
Table 5-3. Port Arbitration Behavior .........................................5-10
Table 5-4. Port(s) Affected by AT Commands ............................5-14
Table 5-5. Sample Typical Modem Initialization Strings .........5-36
Table 6-1. Operational AT Commands .........................................6-2
Table 6-2. Non-Operational AT Commands .................................6-6
Table 6-3. Result Codes for Basic AT Parameter Commands ......6-9
Table 6-4. Common Result Codes for S-Register Commands ....6-24
Table 6-5. SMS Print Command Field Definitions ....................6-54
Table 6-6. SMS Info Command Field Definitions ......................6-59
Table 6-7. Modem Status Information .......................................6-63
Table 7-1. Interface Connector Pinouts ......................................7-10
Table 7-2. Diagnostic Port Pinouts .............................................7-14
Table 7-3. Modem DC Power Consumption Estimates
at 12 V DC Input .........................................................7-17
Table 7-4. Suggested RF Cable and Connector Suppliers ..........7-26
Table 7-5. Swept Sine Vibration Definition ...............................7-33
Table 8-1. Troubleshooting Modem Problems ..............................8-1
Table E-1. Specification Summary — GSP-1620 Modem .......... E-1
Table E-2. Specification Summary — Dielectric Resonator
Antenna (DRA) ............................................................E-3
80-99208-1 Rev. D xiii
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xiv 80-99208-1 Rev . D
REVISION HISTORY
Version Release Date Notes
Rev. A August 23, 2000 First Production Release
Rev. B October 13, 2000 Revised hardware specifications
Rev. C January 25, 2001 Release to accompany GSP-1620 modem software
Rev. D April 17, 2001 Updates and corrections:
version 5.2:
■ Changed modem name and manual title
(removed “packet”)
■ Added information about asynchronous data,
especially in Chapters 5 and 6
■ Revised Diagnostic cable graphic and
procedures in Chapter 2
■ Revised Customer Service information in
Appendix D
■ Added antenna specifications to Appendix E
■ Revised some AT command descriptions or
parameter values in Chapter 6
■ Added pinout information for Diagnostic port
in Chapter 7
■ Added references to the Modem Operation
Monitor in Chapters 2 and 6
■ Applied new document layout design
80-99208-1 Rev. D xv
Integrator’s Reference Manual
xvi 80-99208-1 Rev . D
This QUALCOMM Globalstar GSP-1620 Satellite Data
Modem Integrator’s Reference Manual, also referred to as the
Integrator’s Reference Manual, provides the information
needed to install and use the QUALCOMM Globalstar
GSP-1620 Satellite Data Modem, also referred to as the
GSP-1620 modem in this document.
Who Should Use This Manual
This manual is intended for the following users:
• People who set up the modem from the Modem
Integrator’s Kit on a bench for development and testing
• Application developers who create software applications
that work with the GSP-1620 modem
• Developers and OEMs who service-program modems to
make them work with Globalstar Service Providers
• OEMs or system integrators who incorporate GSP-1620
modem hardware into commercial products (for example,
oil pipeline monitors)
ABOUT THIS MANUAL
• OEM field technicians who install those products on site
Getting Started on page 1-1 includes a roadmap pointing
different users to relevant sections in this manual.
80-99208-1 Rev. D xvii
Integrator’s Reference Manual
How Th is Manual Is Organized
This following table summarizes how information is
organized in this manual.
Chapter Description
Chapter 1. Getting Started Introduction to the GSP-1620 modem and
Chapter 2.
Quick Bench Set-Up
Chapter 3.
Service-Programming Modems
Chapter 4.
Making Simple Data Calls
Chapter 5.
Developing Modem Applications
Chapter 6.
AT Command Reference
Chapter 7.
Integrating GSP-1620 Modems
into OEM Products
Chapter 8. Troubleshooting Suggested solutions for modem problems.
Appendix A.
Globalstar Background
Appendix B.
RF Certification/ Restrictions
the Modem Integrator’s Kit.
Quick instructions for connecting and
powering up the modem and sending
commands via HyperTerminal.
Coordinating with Service Providers and
re-programming default modem
parameters.
Quick tutorial on setting up a PC for
packet data, making mobile-originated
packet data calls, and using modem ports.
Developing software applications that
work with modem features.
Developer’s reference for AT commands,
syntax, and values.
Hardware descriptions of the modem and
antenna, mounting guidelines, and
environmental specifications.
Globalstar space and ground segments,
coverage and carriers.
Certification compliance and RF
restrictions for the modem and antenna.
Appendix C. Warranty QUALCOMM warranty information for
Appendix D. Product Support How to contact QUALCOMM Globalstar
Appendix E.
Specification Summary
xviii 80-99208-1 Rev. D
the GSP-1620 modem.
Customer Service.
Quick reference list of hardware
specifications for the GSP-1620 modem
and antenna.
Notational Conventions
The following table shows the notational conventions that
convey specific types of information in this manual.
Convention Description
About This Manual
Commands, parameters,
values, filenames,
directory locations
Items shown in courier typeface
indicate commands, parameters,
filenames, and directory locations.
<Non-literal elements> Items shown within angle brackets
and
<courier> indicate non-literal
elements for which you type a
substitute.
Menu items and buttons Menu items, commands, and buttons
Dialog box and window titles Dialog box and window titles appear in
Book titles and section references Book titles and section references
Steps
1
2
3
Note
Tip
Tip
appear in bold sans serif.
bold sans serif.
appear in italics.
This symbol identifies “how-to”
procedure. Follow these steps to
accomplish a specific task.
This symbol identifies related
information that deserves emphasis.
This symbol identifies a shortcut or
information that you might find
handy.
Caution
Warning
80-99208-1 Rev. D xix
This symbol identifies a potentially
hazardous situation which, if not
avoided, could damage equipment or
property.
This symbol and bold text identify
potential danger, which, if not
avoided, could cause serious injury or
death.
Integrator’s Reference Manual
Abbreviations and Acronyms
AC Alternating Current
API Application Programming Interface
AT Attention
CCA Circuit Card Assemblies
CDMA Code Division Multiple Access
CDR Call Detail Record
CD-ROM Compact Disc Read-Only Memory
CE Community European
CFR Code of Federal Rules
CP Control Port
CTS Clear To Send
DC Direct Current
DCD Data Carrier Detect
DCE Data Communications Equipment
DM Diagnostic Monitor
DN Directory Number
DNI Do Not Install
DNS Domain Name Server
DP Data Port
DRA Dielectric Resonator Antenna (see ODU)
DSR Data Set Ready
DTE Data Terminating Equipment
DTR Data Terminal Ready
EIRP Equivalent Isotropic Radiated Power
ESD Electrostatic Discharge
ESN Electronic Serial Number
FAX Facsimile
FCC Federal Communications Commission
xx 80-99208-1 Rev. D
About This Manual
FDX Full-Duplex
GAI Globalstar Air Interface
GEO geostationary-Earth-orbit
GLP Globalstar Limited Partnership
GMT Greenwich Mean Time
GND Ground or Signal Common
GPS Global Positioning System
GW Gateway
IMSI International Mobile Subscriber Identity
IP Internet Protocol
ISP Internet Service Provider
IWF Interworking Function (Gateway)
LCD Liquid Crystal Display
LEO low-Earth-orbit
LNA Low Noise Amplifier
MCC Mobile Country Code
MCX Miniature Coaxial Connector
MEO medium-Earth-orbit
MIK Modem Integrator’s Kit
MNC Mobile Network Code
MPE Maximum Permissible Exposure
MSIN Mobile Station Identification Number
MSS Mobile Satellite System
NAM Number Assignment Module
ODU Outdoor Unit (see DRA)
OEM Original Equipment Manufacturer
OSPL Overall Sound Pressure Level
PC Personal Computer
PDF Portable Document File
PDT Pacific Daylight Time
80-99208-1 Rev. D xxi
Integrator’s Reference Manual
PLS Position Location Service
POS Point of Sale; or Position
PPP Point-to-Point Protocol
PST Pacific Standard Time
PSTN Public Switched Telephone Network
PT Pacific Time
QA Quality Assurance
RF Radio Frequency
RFR Ready For Receive
RI Ring Indicator
RLSD Received Line Signal Detector
RMA Return Material Authorization
RSSI Received Signal Strength Indicator
RTS Ready To Send
RTU Remote Termination Unit
R
X Receive
R
XD Receive Data
SCADA Supervisory Control and Data Acquisition
SLIP Serial Line Internet Protocol
SMA Subminiature type “A” Connector
SMS Short Messaging Service
SMT Surface Mount Technology
SP Service Provider
SPC Service Programming Code
TCP Transmission Control Protocol
TCXO Temperature Compensated Crystal
Oscillator
TSS Technical Support Specialist
TTL Transistor Transistor Logic
T
X Transmit
xxii 80-99208 -1 Rev. D
TXDTransmit Data
UCT Universal Coordinated Time
URL Uniform Resource Locator
UT User Terminal
UTC Universal Time Coordinated
UTPST User Terminal Program Support Tool
VPN Virtual Private Network
VSWR Voltage Standing Wave Ratio
Related Document ation
Globalstar UT Program Support Tool User’s Guide,
80-98225-1.
Globalstar User Terminal Service Programming Guide,
80-98482-1.
Globalstar UTPST Script API Reference Manual, 80-99114-1.
QUALCOMM Globalstar Data User Guide, 80-99126-1.
About This Manual
QUALCOMM Globalstar Modem Operation Monitor User’s
Guide, 80-99399-1.
80-99208-1 Rev. D xxi ii
Integrator’s Reference Manual
Warning
Caution
Caution
Cautions and Warnin gs
Before working with the modem hardware or power connections,
remove rings, watc hes, and other metallic objects that could cause
electrical shock or burns.
Use proper elect rostatic dis charge (ESD) equipment and procedures to
avoid damage to the modem.
Any changes or mod ification s to this equipm ent not expr essly appr oved
in this doc ument coul d v oid your warra nty and y our authori ty t o operat e
this equipment .
xxiv 80-99208-1 Rev. D
1 GETTING STARTED
Welcome to the Integrator’s Reference Manual for the
QUALCOMM Globalstar GSP-1620 Satellite Data Modem.
The GSP-1620 modem offers data communication solutions,
particularly for Remote Monitoring and Supervisory Control
and Data Acquisition (SCADA) applications in locations such
as power substations, telecommunication concentration
nodes, oil and gas wells, pipes, and offshore facilities.
Whether you are an application developer, system integrator,
or Original Equipment Manufacturer (OEM), this
Integrator’s Reference Manual contains information you need.
If you want to: Go to:
■ Bench-set up, connect, and power-up the
GSP-1620 modem in the Modem
Integrator’s Kit, and get HyperTerminal
to talk to the modem
■ Service-program modems to work with
your Service Provider (SP) and within the
Globalstar system
■ Set up your computer for packet data and
make a simple packet data call
■ Develop market-specific application
software to work with the GSP-1620
modem (using packet data or
asynchronous data)
■ Understand modem AT commands
■ Mount GSP-1620 modems and antennas
for market-specific OEM products
(including all hardware and
environmental specifications)
■ Troubleshoot modem problems
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
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Tip
Note
GSP-1620 Modem Overview
The QUALCOMM Globalstar GSP-1620 Satellite Data
Modem delivers reliable digital data communications
wherever Globalstar data service is available, using
QUALCOMM’s patented CDMA technology and the
Globalstar Communications System’s constellation of 48
low-Earth-orbit (LEO) satellites.
The GSP-1620 modem handles two kinds of data connections:
• Packet — over the Internet or other TCP/IP
packet-switched network
• Asynchronous — routed through the Public Switched
Telephone Network (PSTN) to a destination modem
QUALCOMM Globalst ar p acket d ata ser vi ce has a lowe r overh ead a nd
faster connection time than asynchronous data does. If a SCADA
application d oes n ot specif ical ly need asynchr onous data, it s hould us e
packet data instead.
As an OEM, you directly integrate the GSP-1620 modem into
a market-specific product, to resell to a business/industrial
customer.
For additio nal information about t he Globalstar system, see Globalstar
Background, page A-1. For information about buying bul k modems from
QUALCOMM, contact QUALCOMM Glob alstar Customer Service as
described in Appendix D.
1-2 80-99208-1 Rev. D
Typical Modem SCADA Applications
In remote settings or difficult-to-access sites, acquiring and
responding to process control and alarm data can be
challenging and costly. For both system integrators and
OEMs, the QUALCOMM Globalstar GSP-1620 Satellite Data
Modem provides real-time, low cost, bi-directional data
communication solution applications in remote locations for
fixed or mobile use.
The GSP-1620 modem lets you retrieve data automatically
from remote sites. Unmanned sensors connected to the
GSP-1620 modem can monitor remote operations and initiate
alert notifications.
Table 1-1 lists some typical Remote Monitoring and
Supervisory Control and Data Acquisition (SCADA)
applications.
T able 1-1. T ypical GSP-1620 Modem Applications
Getting Started
Electric Utility Industry Remote Security Systems
Oil and Gas Wells, Tanks,
Pipelines, Offshore Platforms
Water Treatment Plants Retail Point of Sale (POS)
Remote Inventory
Management
Electronic Billboards Agriculture
Highway Traffic Monitoring Aircraft Weather/Messaging
Monitoring
Energy Management
Transactions
Remote Banking
for Commercial and General
Aviation
Figure 1-1 depicts a typical use of the GSP-1620 modem for a
SCADA application using packet data.
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Integrator’s Reference Manual
Figure 1-1. Typi cal Modem SCADA Appl ication Usi ng Pack et Data
Satellite
Remote
DTE
SCADA Terminal
Outdoor Antenna
Rx
Tx
Globalstar
Gateway
DCE
GSP-1620
Modem
Internet
Data Port
Control Port
Host
Server
For packet data connections, the GSP-1620 modem
essentially functions as a “node” on the Internet and, with its
fixed or dynamically assigned IP address, can be addressed in
real time as often as necessary to maintain application
control over the remote devices.
Figure 1-2 depicts a typical use of the GSP-1620 modem for a
SCADA application using asynchronous data.
1-4 80-99208-1 Rev. D
Getting Started
Figure 1-2. Typical Modem SCADA Application Using
Asynchronous Data
Satellite
Remote
DTE
SCADA Terminal
Outdoor Antenna
Data Port
Control Port
Globalstar
Tx
Rx
Gateway
DCE
Gateway IWF Modem
GSP-1620
Modem
PSTN
Host Modem
Host
Server
For asynchronous data connections, the GSP-1620 modem
can dial or be dialed by a host modem, connecting through the
Globalstar Satellite Communications System and the PSTN.
You can think of the GSP-1620 modem in Figure 1-1 and
Figure 1-2 as a 9600 bps full duplex satellite modem. The
modem uses typical Hayes AT commands (see Chapter 6, AT
Command Reference). Standard RS-232 interfaces facilitate
ease of use and OEM application integration.
For either packet or asynchronous connections, OEMs
provide the host application (server), which uses the
GSP-1620 modem to communicate with a custom SCADA
application on data terminating equipment (DTE) at a remote
site. The host application manages the field processing of
data and reports process exceptions, performance reports,
alarm conditions—in short, any data needed from the
remote site.
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Integrator’s Reference Manual
For example, in the electric utility industry, a SCADA
application using the GSP-1620 modem could remotely turn
on a pump, close a switch, open a gate, request a new meter
reading, monitor line voltage, 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
Outdoor
Antenna
Rx
Tx
Diagnostic Port
GSP-1620
Modem
Interface Port
Serial Control Port
Modem AT
commands
SCADA Application Terminal
Serial Data Port
Data
or AT
commands
UT Program Support Tool
(UTPST)
for service programming
DC Power
5.6V-16V
1-6 80-99208-1 Rev. D
Getting Started
The GSP-1620 modem is a bare board “sandwich” stack of
Circuit Card Assemblies (CCA) containing two boards:
• Globalstar RF board — includes the LNA, RF power amp,
upconverters and downconverters, TCXO, synthesizers,
and the remaining power electronics.
• Globalstar Digital board — includes the processor, the
modem, and some of the power management electronics.
QUALCOMM offers the GSP-1620 modem without a
mechanical enclosure, anticipating that OEMs will integrate
and package the modem with the end-user’s application.
The GSP-1620 modem operates in the “Globalstar (or
satellite) data mode only,” as opposed to the GSP-1600
Tri-Mode Phone, which has additional terrestrial cellular
(analog and digital) and voice capabilities. The GSP-1620
modem is powered by an external power source provided by
the user.
A weatherproof Dielectric Resonator Antenna (DRA),
sometimes referred to as an Outdoor Unit (ODU), comes with
each modem. OEMs provide antenna cables (SMA to MCX
connectors), to meet customer antenna-cable length needs.
A single DB-25 (male) connector is used for the user interface
port. The DB-25 carries DC power, as well as the Data and
Control RS-232 signals, between the SCADA application
(DTE) and the modem (DCE).
A Diagnostic port on the modem allows network provisioning
(service programming) and software upgrades.
What’s in the Modem Integrator’s Kit?
Your GSP-1620 Modem Integrator’s Kit (MIK) is designed to
help you rapidly develop user applications for GSP-1620
modems.
Table 1-2 shows the items contained in your GSP-1620
Modem Integrator’s Kit (QUALCOMM part number: MCN
65-82317-1).
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