Comtech EF Data DMD1050 User Manual
Comtech EF Data is an
AS9100 Rev B / ISO9001:2000 Registered Company
IMPORTANT NOTE: The information contained in this document supersedes all previously published information
DMD1050
Satellite Modem Board
Installation and Operation Manual
regarding this product. Product specifications are subject to change without prior notice.
MN-DMD1050 Revision 9
Errata A for MN-DMD1050 Rev 9
Comtech EF Data Documentation Update
Subject:
Table of Contents and Chapter 6, Technical Specifications Data Rates
Errata Part Number:
PLM CO Number:
Comments:
See the following pages.
ER-DMD1050-EA9 (Errata documents are not subject to revision.)
C-0028804
The new information will be included in the next released revision of the manual.
ER-DMD1050-EA9 Rev - PLM C-0028804
Table of Contents Revision 9
DMD1050 Satellite Modem Board MN-DMD1050
CHAPTER 4. REAR PANEL INTERFACE ............................................................................. 4–1
4.1 DMD1050 Connections ....................................................................................................................... 4–1
4.2 Compact Flash (J9) .............................................................................................................................. 4–5
4.3 Power Input (J7) ................................................................................................................................. 4–5
4.4 Chassis Connections (Standard) ........................................................................................................... 4–5
4.4.1 EXT REF (J8) .............................................................................................................................................. 4–5
4.4.2 TX L-Band IF (J1) ....................................................................................................................................... 4–5
4.4.3 RX L-Band IF (J2) ....................................................................................................................................... 4–5
4.4.4 ASYNC & Remote Port (J1) - 10 Pin Dual Row Header ............................................................................. 4–6
4.4.5 TERMINAL - Factory use only .................................................................................................................. 4–8
4.4.6 MIL-188-114A (J2) EIA-530 Port RS-422 ................................................................................................... 4–8
4.4.7 ETHERNET M&C (J10) ............................................................................................................................... 4–9
4.5 Ethernet Data Interface (J11) .............................................................................................................. 4–9
4.6 BUC & LNB Power Input (J3) ................................................................................................................ 4–9
CHAPTER 5. MAINTENANCE AND TROUBLESHOOTING ........................................... 5–1
5.1 Periodic Maintenance ......................................................................................................................... 5–1
5.2 Troubleshooting ................................................................................................................................. 5–1
5.2.1 Alarm Faults ............................................................................................................................................. 5–2
5.2.2 Alarm Masks ............................................................................................................................................. 5–3
CHAPTER 6. TECHNICAL SPECIFICATIONS ..................................................................... 6–1
6.1 Data Rates .......................................................................................................................................... 6–1
6.2 Modulator .......................................................................................................................................... 6–1
6.3 Demodulator ...................................................................................................................................... 6–2
6.4 Plesiochronous Buffer ......................................................................................................................... 6–2
6.5 Monitor and Control ........................................................................................................................... 6–2
6.6 Terrestrial Interfaces ........................................................................................................................... 6–2
6.7 Environmental .................................................................................................................................... 6–2
6.8 Physical .............................................................................................................................................. 6–2
6.9 Data Rate Limits ................................................................................................................. 6–3
6.9.1 Non-DVB ................................................................................................................................................... 6–3
6.9.2 DVB ........................................................................................................................................................... 6–4
v
6.1 Data Rates
BPSK Uncoded 4.8 Kbps to 10.0 Mbps
1/2 Rate BPSK 2.4 Kbps to 5.0 Mbps
3/4 Rate BPSK 3.6 Kbps to 7.5 Mbps
7/8 Rate BPSK 4.2 Kbps to 8.75 Mbps
QPSK Uncoded 9.6 Kbps to 20.0 Mbps
1/2 Rate QPSK 4.8 Kbps to 10.0 Mbps
3/4 Rate QPSK 7.2 Kbps to 15.0 Mbps
7/8 Rate QPSK 8.4 Kbps to 17.5 Mbps
Rate 2/3 8PSK 9.6 Kbps to 20.0 Mbps
3/4 Rate 16QAM 14.4 Kbps to 20.0 Mbps
7/8 Rate 16QAM 16.84 Kbps to 20.0 Mbps
Chapter 6. Technical
Specifications
6.2 Modulator
Modulation BPSK, QPSK, and OQPSK, 8PSK, 16QAM
L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps
Impedance SMA, 50 Ohm or F-Type 75 Ohm (Optional)
Connector SMA, or F-Type (Optional)
Return Loss SMA 2.0:1
Output Power 0 to -25 dB
Output Stability L-Band, ±1.0 dB Over Frequency and Temperature
Output Spectrum Selectable and Meet s MIL-188-165A or IESS 308/309/ 310
Power Spectral Mask
Spurious -55 dBc In-Band
-45 dBc Out-of-Band
On/Off Power Ratio >60 dB
Scrambler OM-73, CCITT V.35 or IBS
FEC Viterbi, K = 7 at 1/2, 3/4 and 7/8
2/3 Rate Trellis
Turbo Product Code (Optional)
BPSK 21/44
QPSK/OQPSK 1/2, 3/4, 7/8
8PSK/16QAM 3/4, 7/8
Outer Encoder Options Reed-Solomon INTELSAT (DVB Optional)
Custom (N, K) Reed-Solomon
Data Clock Source Internal, External, Rx Recovered
MN-DMD1050 6–1
Revision 9
DMD1050 Satellite Modem Board Technical Specifications
6.9 Data Rate Limits
6.9.1 Non-DVB
Modulation Code Rate Min Data Rate Max Data Rate
BPSK NONE 4800 10000000
BPSK VIT 1/2 2400 5000000
BPSK VIT 3/4 3600 7500000
BPSK VIT 7/8 4200 8750000
BPSK SEQ 1/2 2400 2048000
BPSK SEQ 3/4 3600 2048000
BPSK SEQ 7/8 4200 2048000
BPSK TPC 21/44 2400 4772727
BPSK TPC 3/4 4800 7500000
BPSK TPC 7/8 4800 8750000
QPSK NONE 9600 20000000
QPSK VIT 1/2 4800 10000000
QPSK VIT 3/4 7200 15000000
QPSK VIT 7/8 8400 17500000
QPSK SEQ 1/2 4800 2048000
QPSK SEQ 3/4 7200 2048000
QPSK SEQ 7/8 8400 2048000
QPSK TPC 1/2 4582 9545454
QPSK TPC 3/4 7200 15000000
QPSK TPC 7/8 8400 17500000
OQPSK NONE 9600 20000000
OQPSK VIT 1/2 4800 10000000
OQPSK VIT 3/4 7200 15000000
OQPSK VIT 7/8 8400 17500000
OQPSK SEQ 1/2 4800 2048000
OQPSK SEQ 3/4 7200 2048000
OQPSK SEQ 7/8 8400 2048000
OQPSK TPC 1/2 4582 9545454
OQPSK TPC 3/4 7200 15000000
OQPSK TPC 7/8 8400 17500000
MN-DMD1050 6–3
Revision 9
Comtech EF Data is an
AS9100 Rev B / ISO9001:2000 Registered Company
DMD1050
Satellite Modem Board
Installation and Operation Manual
Part Number MN-DMD1050
Revision 9
Copyright © 2011 Comtech EF Data. All rights reserved. Printed in the US A.
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333. 2200, FAX: 480.333.2161
This page is intentionally blank.
Table of Contents
CHAPTER 1. INTRODUCTION .................................................................................................. 1–1
1.1 Overview ............................................................................................................................................ 1–1
1.2 DMD1050 Configurations .................................................................................................................... 1–2
1.2.1 Features/Options Installed at Time of Order ........................................................................................... 1–2
1.2.2 Feature Upgrades ..................................................................................................................................... 1–2
1.3 Function Accessibility .......................................................................................................................... 1–2
CHAPTER 2. INSTALLATION .................................................................................................... 2–1
2.1 Installation Requirements ................................................................................................................... 2–1
2.2 Unpacking .......................................................................................................................................... 2–2
2.3 Removal and Assembly ....................................................................................................................... 2–2
2.4 Installation Considerations ................................................................................................................. 2–2
2.5 DMD1050 Initial Configuration Check .................................................................................................. 2–2
2.5.1 Standard DMD1050 Factory Configuration Settings ................................................................................ 2–3
2.6 Modulator Checkout ........................................................................................................................... 2–4
2.6.1 Initial Power-Up ....................................................................................................................................... 2–4
2.6.2 M&C Web Browser Setup ........................................................................................................................ 2–4
2.6.3 M&C Terminal Setup ................................................................................................................................ 2–5
2.7 Storage ............................................................................................................................................... 2–6
CHAPTER 3. THEORY OF OPERATION ............................................................................... 3–1
3.1 DMD1050 Hardware ........................................................................................................................... 3–1
3.1.1 DMD1050 L-Band Printed Circuit Card ..................................................................................................... 3–2
3.1.2 DMD1050 Baseband Processing Printed Circuit Card .............................................................................. 3–2
3.2 DMD1050 Functional Block Diagram ................................................................................................... 3–4
3.2.1 Baseband Processing ................................................................................................................................ 3–4
3.2.2 Tx Baseband Processing ........................................................................................................................... 3–4
3.2.3 Rx Baseband Processing ........................................................................................................................... 3–5
3.3 Monitor & Control (M&C) ................................................................................................................... 3–5
3.3.1 Terminal Port/ES-ES Communications (J1) ............................................................................................... 3–6
3.3.2 Terminal Mode Control ............................................................................................................................ 3–6
3.3.3 Modem Terminal Mode Control .............................................................................................................. 3–6
3.3.4 Modem Setup for Terminal Mode ........................................................................................................... 3–7
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3.3.5 Connecting the Terminal .......................................................................................................................... 3–7
3.3.6 Terminal Screens ...................................................................................................................................... 3–8
3.4 Modem Remote Communications (RLLP) ............................................................................................. 3–8
3.4.1 RLLP Protocol Structure ........................................................................................................................... 3–8
3.5 Modem Setup for Ethernet M&C (J10) ................................................................................................ 3–8
3.6 M&C Default/Reset Plug Settings (JP5 & JP6) ...................................................................................... 3–9
3.7 Ethernet Data Interface – (J11) ............................................................................................................ 3–9
3.8 Internal Clock ................................................................................................................................... 3–13
3.9 Loopback Features (Terrestrial & IF) .................................................................................................. 3–14
3.10 DMD1050 Clocking Options ............................................................................................................... 3–17
3.10.1 TX Clock Options ................................................................................................................................ 3–17
3.10.2 RX Buffer Clock Options ..................................................................................................................... 3–19
3.10.3 RX SAT Clock ...................................................................................................................................... 3–19
3.10.4 SCTE: Serial Clock Transmit External .................................................................................................. 3–19
3.10.5 SCT: Serial Clock Transmit .................................................................................................................. 3–19
3.11 Ethernet Data Interface .................................................................................................................... 3–20
3.12 Reed-Solomon Codec ........................................................................................................................ 3–20
3.12.1 Reed-Solomon Operation in the DMD1050 ....................................................................................... 3–20
3.12.2 Reed-Solomon Code Rate .................................................................................................................. 3–20
3.12.3 Interleaving ........................................................................................................................................ 3–21
3.13 DMD1050 Automatic Uplink Power Control (AUPC Operation) .......................................................... 3–22
3.13.1 Radyne AUPC ..................................................................................................................................... 3–22
3.13.2 EF AUPC ............................................................................................................................................. 3–23
3.13.3 Near Side AUPC .................................................................................................................................. 3–23
3.14 Asynchronous Overhead Operation (J1) ............................................................................................ 3–25
3.15 Standard IBS ES to ES Mode .............................................................................................................. 3–27
3.16 Enhanced Asynchronous Mode (Radyne Proprietary) ........................................................................ 3–28
3.17 Satellite Control Channel (SCC) - J1 .................................................................................................... 3–28
3.17.1 SCC Framing Structure ....................................................................................................................... 3–29
3.17.2 Aggregate Data Rate .......................................................................................................................... 3–30
3.17.3 Overhead Rate Comparison ............................................................................................................... 3–31
3.17.4 Actual Overhead Rate Calculation ..................................................................................................... 3–32
3.17.5 SCC Overhead Channel Setup ............................................................................................................ 3–33
3.18 DMD1050 ID Codes (Feature Upgrades) ............................................................................................ 3–35
3.19 Strap Codes ...................................................................................................................................... 3–35
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DMD1050 Satellite Modem Board MN-DMD1050
CHAPTER 4. REAR PANEL INTERFACE ............................................................................. 4–1
4.1 DMD1050 Connections ....................................................................................................................... 4–1
4.2 Compact Flash (J9) .............................................................................................................................. 4–5
4.3 Power Input (J7) ................................................................................................................................. 4–5
4.4 Chassis Connections (Standard) ........................................................................................................... 4–5
4.4.1 EXT REF (J8) .............................................................................................................................................. 4–5
4.4.2 TX L-Band IF (J1) ....................................................................................................................................... 4–5
4.4.3 RX L-Band IF (J2) ....................................................................................................................................... 4–5
4.4.4 ASYNC & Remote Port (J1) - 10 Pin Dual Row Header ............................................................................. 4–6
4.4.5 TERMINAL - Factory use only .................................................................................................................. 4–8
4.4.6 MIL-188-114A (J2) EIA-530 Port RS-422 ................................................................................................... 4–8
4.4.7 ETHERNET M&C (J10) ............................................................................................................................... 4–9
4.5 Ethernet Data Interface (J11) .............................................................................................................. 4–9
4.6 BUC & LNB Power Input (J3) ................................................................................................................ 4–9
CHAPTER 5. MAINTENANCE AND TROUBLESHOOTING ........................................... 5–1
5.1 Periodic Maintenance ......................................................................................................................... 5–1
5.2 Troubleshooting ................................................................................................................................. 5–1
5.2.1 Alarm Faults ............................................................................................................................................. 5–2
5.2.2 Alarm Masks ............................................................................................................................................. 5–3
CHAPTER 6. TECHNICAL SPECIFICATIONS ..................................................................... 6–1
6.1 Data Rates .......................................................................................................................................... 6–1
6.2 Modulator .......................................................................................................................................... 6–1
6.3 Demodulator ...................................................................................................................................... 6–2
6.4 Plesiochronous Buffer ......................................................................................................................... 6–2
6.5 Monitor and Control ........................................................................................................................... 6–2
6.6 Terrestrial Interfaces ........................................................................................................................... 6–2
6.7 Environmental .................................................................................................................................... 6–2
6.8 Physical .............................................................................................................................................. 6–2
6.9 DMD2050 Data Rate Limits ................................................................................................................. 6–3
6.9.1 Non-DVB ................................................................................................................................................... 6–3
6.9.2 DVB ........................................................................................................................................................... 6–4
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6.10 DMD1050 BER Specifications .............................................................................................................. 6–6
6.10.1 BER Performance (Viterbi) ................................................................................................................... 6–6
6.10.2 BER Performance (Sequential) ............................................................................................................. 6–7
6.10.3 BER Performance (Viterbi with Reed-Solomon) .................................................................................. 6–8
6.10.4 BER Performance (8PSK Trellis) ........................................................................................................... 6–9
6.10.5 BER Performance (16QAM Viterbi) .................................................................................................... 6–10
6.10.6 BER Performance (16QAM Viterbi with Reed-Solomon) ................................................................... 6–11
6.10.7 BER Performance ((O)QPSK Turbo) .................................................................................................... 6–12
6.10.8 BER Performance (8PSK Turbo) ......................................................................................................... 6–13
6.10.9 BER Performance (16QAM Turbo) ..................................................................................................... 6–14
6.10.11 ACG Output Voltage ........................................................................................................................... 6–18
CHAPTER 7. WEB BROWSER.................................................................................................. 7–1
7.1 Web Browser User Interface ............................................................................................................... 7–1
7.2 Configuring Your PC ............................................................................................................................ 7–1
7.2.1 Appearance .............................................................................................................................................. 7–2
7.2.2 Navigation ................................................................................................................................................ 7–2
7.2.3 LED Indicators ........................................................................................................................................... 7–3
7.3 GUI Screen Menus .............................................................................................................................. 7–4
7.3.1 Introduction Menu ................................................................................................................................... 7–5
7.3.2 Password Setup ........................................................................................................................................ 7–7
7.3.3 IP and Application Administration ........................................................................................................... 7–9
7.3.4 Monitor and Control Menu .................................................................................................................... 7–14
APPENDIX A. PRODUCT OPTIONS ............................................................................................ A–1
A.1 Hardware Options ............................................................................................................................. A–1
A.2 Internal High-Stability ........................................................................................................................ A–1
A.3 Customized Options ........................................................................................................................... A–1
APPENDIX B. CARRIER CONTROL ...................................................................................... B–1
B.1 States ................................................................................................................................................. B–1
B.2 Carrier Off .......................................................................................................................................... B–1
B.3 Carrier On ........................................................................................................................................... B–1
B.4 Carrier Auto ........................................................................................................................................ B–1
B.5 Carrier VSat ........................................................................................................................................ B–2
B.6 Carrier RTS .......................................................................................................................................... B–2
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APPENDIX C. TCP/IP ETHERNET SETUP ........................................................................... C–1
C.1 Introduction ....................................................................................................................................... C–1
C.2 TCP/IP Network Configuration ............................................................................................................ C–1
C.3 Network Configuration Summary ........................................................................................................ C–3
C.4 Ethernet Test ...................................................................................................................................... C–3
C.5 Testing the Ethernet Connection using the Ping Program (Optional) .................................................... C–6
APPENDIX D. WEB BROWSER SETUP GUIDE ............................................................... D–1
D.1 Introduction ...................................................................................................................................... D–1
D.2 Required Items .................................................................................................................................. D–1
D.3 Web Interface Setup Guidelines ......................................................................................................... D–1
D.3.1 Preparing the DMD1050 for Web Setup ................................................................................................. D–1
D.4 IP Network Change from the Initial Web Setup .................................................................................. D–4
D.4.1 Configuring the modem .......................................................................................................................... D–4
D.4.2 Configuring the Computer ...................................................................................................................... D–5
D.5 WEB Users Setup and Configurations Controls Options ....................................................................... D–6
D.5.1 Change Authentication Password ........................................................................................................... D–7
D.5.2 Boot Mode Options (Reference only) ..................................................................................................... D–8
APPENDIX E. USER INTERFACE CONNECTIONS .......................................................... E–1
E.1 User Interface Connections ................................................................................................................. E–1
APPENDIX F. ETHERNET DATA INTERFACE ................................................................... F–1
F.1 Introduction ....................................................................................................................................... F–1
F.2 Point-to-Point Applications ................................................................................................................. F–2
F.3 The Importance of Transparent Operation .......................................................................................... F–3
F.4 Point-to-Multipoint Applications ......................................................................................................... F–4
F.5 High Speed Mesh Applications ............................................................................................................ F–5
F.6 Low Speed Mesh Applications ............................................................................................................. F–6
F.7 Remote Monitor and Control via SNMP .............................................................................................. F–7
F.8 Enhanced Quality of Service (QOS) ...................................................................................................... F–8
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F.8.1 Normal QOS ............................................................................................................................................. F–9
F.8.2 Port Based QOS ........................................................................................................................................ F–9
F.8.3 Fair Weighted Queuing ............................................................................................................................ F–9
F.8.4 Strict Priority Queuing .............................................................................................................................. F–9
F.8.5 Satellite Packet Error Checking .............................................................................................................. F–10
F.8.6 Automatic Learning and Aging ............................................................................................................... F–10
F.8.7 Internal Buffer and Throttle ................................................................................................................... F–10
F.8.8 Adding Acceleration, Compression, Network Security, and Traffic Shaping .......................................... F–11
F.8.9 Any Data Rate, Any Modulation Type, Any FEC, Any Application .......................................................... F–11
APPENDIX G. DMD1050 STRAP CODES .................................................................................. G–1
G.1 Introduction ...................................................................................................................................... G–1
APPENDIX H. SOFTWARE UPGRADE PROCEDURE .................................................... H–1
H.1 Software Upgrade Procedure ............................................................................................................. H–1
H.2 Terminal Software Upgrade ............................................................................................................... H–1
H.3 Required Equipment .......................................................................................................................... H–1
H.4 Upgrade Procedure ............................................................................................................................ H–1
H.5 Demonstration Procedure .................................................................................................................. H–2
H.6 Canceling Demonstration Mode ......................................................................................................... H–3
H.7 Web Browser Software Upgrade ........................................................................................................ H–4
H.8 Monitor and Control .......................................................................................................................... H–4
viii
About this Manual
This manual describes the installation and operation of the DMD1050.
Conventions and References
Trademarks
Product names mentioned in this manual may be trademarks or registered trademarks of their
respective companies and are hereby acknowledged.
Related Documents
• Department of Defense (DOD) MIL-STD-188-165A, Interoperability and Performance
Standards for SHF Satellite Communications PSK Modems (FDMA Operation) (dated
November 2005)
• Department of D efense (DOD) MIL-STD -188-114A, Electrical Characteristics of Digital
Interface Circuits
PREFACE
• EN300-421 and EN301-210 ETSI
• INTELSAT Earth Station Standards IESS-308, -309, -310, and -315
Cautions and Warnings
IMPORTANT or NOTE indicates a statement associated with the tas k
IMPORTANT
CAUTION
being performed or information critical for proper equipment function.
CAUTION indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury. CAUTION may also be used to indicate other
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
i
DMD1050 Revision 9
Preface MN-DMD1050
Warranty Policy
Comtech EF Data products are warranted against defects in material and workmanship
for a period of two years from the date of shipment. During the warranty period, Comtech
EF Data will, at its option, repair or replace products that prove to be defective.
are warranted for the remainder of the original two year warranty, or a 90 day extended
warranty, whichever is longer.
For equipment under warranty, the owner is responsibl e for freight to Comtech EF Data
and all related customs, taxes, tariffs, insurance, etc. Comtech EF Data is responsible for
the freight charges only for return of the equipment from the factory to the owner.
Comtech EF Data will return the equipment by the same method (i.e., Air, Express,
Surface) as the equipment was sent to Comtech EF Data.
All equipment returned for warranty repair must have a valid RMA number issued prior to
return and be marked clearly on the return packaging. Comtech EF Data strongly
recommends all equipment be returned in its original packaging.
Comtech EF Data Corporation’s obligations under this warranty are limited to repair or
replacement of failed parts, and the return shipment to the buyer of the repaired or
replaced parts.
Repairs
Limitations of Warranty
The warranty does not apply to any part of a product that has been installed, altered,
repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation,
would affect the reliability or detracts from the performance of any part of the product, or
is damaged as the result of use in a way or with equipment that had not been previously
approved by Comtech EF Data Corporation.
The warranty does not apply to any product or parts thereof where the serial number or the
serial number of any of its parts has been altered, defaced, or removed.
The warranty does not cover damage or loss incurred in tr ansportation of the product .
The warranty does not cover replacement or repair necessitated by loss or damage from
any cause beyond the control of Comtech EF Data Corporation, such as lightning or
other natural and weather related events or wartime environments.
The warranty does not cover any labor involved in the removal and or reinstallation of
warranted equipment or parts on site, or any labor required to diagnose the necessity for
repair or replacement.
The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or
consequential damages arising from the use of the equipment or
use them either separate from or in co mbination w ith any oth er equipmen t or pr oducts.
A fixed charge established for each product will be imposed for all equipment returned
for warranty repair where Comtech EF Data Corporation cannot identify the cause of the
reported failure.
products, or for any inability to
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DMD1050 Revision 9
Preface MN-DMD1050
Exclusive Remedies
Comtech EF Data Corporation’s warranty, as stated is in lieu of all other warranties,
expressed, implied, or statutory, including those of merchantability and fitness for a
particular purpose. The buyer shall pass on to any purchaser, lessee, or other user of
Comtech EF Data Corporation’s products, the aforementioned warranty, and shall
indemnify and hold harmless Comtech EF Data Corporation from any claims or liability
of such purchaser, lessee, or user based upon allegations that the buyer, its agents, or
employees have made additional warranties or representations as to product preference
or use.
The remedies provided herein are the buyer’s sole and exclusive remedies. Comtech
EF Data shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
iii
DMD1050 Revision 9
Preface MN-DMD1050
Customer Support
Support Business Hours - Monday through Friday - 8:00 a.m. to 5:00 p.m. (MST)
Comtech EF Data & Radyne
• Satellite Modems
• Modem Accessories
• Amplifiers
• Converters
• Transceivers
• Terminals
• IP-Enabled Satellite Modems
• IP-Based Modem Accessories
• Encapsulators, Receivers, Filtering &
Encryption
• turboIP® Performance Enhancement
Proxies (PEP)
• SkyWire™ MDX420 Satellite Network
Gateway
• Vipersat Network Products
• IP-Enabled Satellite Modems used in
conjunction with VMS
After Hours and Weekends:
Comtech
Tel: +1.480.333.4357
Memotec Products
• CX-U: RAN Optimization
• NetPerformer: Satellite Routers
Stampede Technologies
• FX Series Application Delivery Controllers
• FX Series WAN Optimization Controllers
Tel: +1.480.333.4357
Fax: +1.480.333.2500
Email: techsupport@comtechefdata.com
Tel: +1.480.333.2433
Fax: +1.480.333.2161
Email: cdmipsupport@comtechefdata.com
Tel: +1.510.252.1462 - select option #2
Fax: +1.510.252.1695
Email: supportcvni@comtechefdata.com
Radyne
Tel: +1.602.980.5220
Tel: +1.514.738.4781
Fax: +1.514.738.4436
Email: memotecsupport@memotec.com
Business Hours - Monday Through Friday
8:00 a.m. to 5:00 p.m. (EST)
Tel: +1.937.291.5035
Fax: +1.937.291.5040
Email: stampedesupport@comtechefdata.com
Business Hours - Monday Through Friday
8:30 a.m. to 5:30 p.m. (EST)
After Hours and Weekends: +1.937.291.5035
iv
This chapter provides an overview of the DMD1050 Satellite Board Modem, which is designed
for satellite IP, telecom, video and internet applications.
1.1 Overview
• Duplex L-Band modem
• MIL-STD-188-165A standards
• IDR, IBS and DVB
• Data rates up to 20 Mbps
Chapter 1. Introduction
Figure 1-1. DMD1050 Satellite Board Modem (Top Vi ew)
MN-DMD1050 1–1
Revision 9
DMD1050 Satellite Modem Board Introduction
The DMD1050's impressive remote accessibility rivals all others in the field. Remote control via
RLLP (Radyne Link Level Protocol), Ethernet 10 Base-T SNMP and Web Browser includes
control of all the modem's features plus so f tware maintenance. The unit presents monitor and
control functions on the screen.
Additional options and configuration (such as Monitor and Control (M&C) Functions) can be
activated in seconds via the Web Browser.
Compatibility with current modems, such as the DMD2050, DMD50, DMD20 and the DISA
certified MIL-188-165 compliant DMD15L are maintained for seamless substitution and addition
to existing systems.
This unit offers built in Standard Inter f aces that are selectable from MIL-188-114A and a Dual
Port Ethernet Bridge.
1.2 DMD1050 Configurations
The DMD1050 can be configured in the following different ways:
• Features and options that are installed when the unit is ordered
• Feature upgrades
• Hardware options that the user can install at their own location
• Options that are installed to a unit that is sent to a comtech service center
1.2.1 Features/Options Installed at Time of Order
Features installed at the time of ordering are the options pre-installed/initialized in the factory
prior to shipment. These can be reviewed f r om the web browser. Refer to Section 4, User
Interfaces for information on how to view these features.
Factory installed options are chassis and board configurations that are introduced during
manufacture.
1.2.2 Feature Upgrades
Feature Upgrades are a simple and quick way of changing the feature set of an installed modem.
Feature upgrades are how most DMD1050 options are implemented. Features may be purchased
at any time by contacting a salesperson. Refer to Section 3 and Appendix D, for information on
how upgrade features.
1.3 Function Accessibility
All functions can be accessed with a terminal or personal computer via a serial link for complete
remote monitoring and control capability.
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WARNINGS
inside the DMD105.
CAUTION
Make sure to obey proper ESD practices to avoid damaging the unit.
Chapter 2. Installation
This section provides instructions on unpacking and installation, as well as storage of the unit.
2.1 Installation Requirements
Installation of the DMD1050 Modem Board requires adequate planning by the user to ensure no
damage will occur to the unit. Package design considerations for the modem board include
mounting, temperature limits, adequate ventilation, limited vibration, no exposure to
condensation/ moisture and a stable power source.
Mating connectors are supplied with each unit. A full description of the modems pin outs can be
found in Section 4. Appendix E gives details of the various connectors and mating connectors
supplied.
1. The DMD1050 contains a Lithium Battery. DANGER OF
Before connecting power to the unit, disconnect the transmit output from the
operating ground station equipment. Communication traffic can be disrupted
by connecting power to a unit when the configuration settings are not known
and may be incorrect.
EXPLOSION exists if the battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries in accordance with local and national
regulations
2. Make sure to eliminate the potential for Static Discharge that can
damage the Modem Board.
3. There are no user-serviceable parts or configuration sett ings located
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DMD1050 Satellite Modem Board Installation
CAUTION
First, make sure to select the DMD1050 Int erf ace Type (MIL-188-114A or
2.2 Unpacking
The DMD1050 Universal Satellite Mod em was carefully packaged to avoid damage an d should
arrive complete with the following items for proper installation:
• DMD1050 Modem Board
• Installation and Operation Manual
2.3 Removal and Assembly
The DMD1050 Modem Unit is shipped fully assembled.
Make sure to obey proper ESD practices to avoid damaging the unit.
Carefully unpack the unit and ensure that all of the above items are in the carton. If the available
Power cable and Data cables can be supplied.
2.4 Installation Considerations
User must consider adequate ventilation when installing the DMD1050 into the final package.
The recommended ambient temperature for the modem board should be between 10° and 35°C,
and held constant for best equipment operation. Ventilated air should be clean and relatively dry.
Modem board must have adequate spacing between other products to avoid cross talk or electrical
shorts. Modems should not be placed immediately above a high-heat or EMF Generator to ensure
the output signal integrity and proper receive operation.
Do not install the DMD1050 in an unprotected outdoor location where there is direct contact with
rain, snow, wind or sun. The only tools required for installing the DMD1050 are five (5)
mounting holes. Caution should be exercised when installing the modem board to ensure the
modem board is not bent, warped or compressed to ensure the unit does not get damaged.
2.5 DMD1050 Initial Configuration Check
The DMD1050 is shipped from the factory with preset factory defaults. Upon initial power-up, a
user check should be performed to verify the shipped modem configuration. Refer to Section 4;
User Interfaces, to locate and verify that the following configuration settings are correct:
Ethernet Data Interface) BEFORE you install the mating connectors. Failure
to do this can damage the Data Interface.
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DMD1050 Satellite Modem Board Installation
Using the modem’s loopback capabilities with the Ethernet data interface can cause
loopback, the results will not be as desired.
IMPORTANT
Implementing Strap Code 26 can set the following modem configuration.
the strap code.
IMPORTANT
2.5.1 Standard DMD1050 Factory C onfi guration Settings
Refer to Table 4-4 for an explanation and tabular listing of available Strap
Codes. The Frequency and Modulator Output Power are set independently of
Modulator:
Data Rate: 2.048 Mbps
Mode: Closed Network
Satellite Framing: None
Scrambler: V.35 (IESS)
Inner FEC: 1/2 Rate Viterbi
Outer FEC: Disabled
Modulation: QPSK
Frequency: 950 MHz
Modulator Output Power: -20 dBm
Demodulator:
Data Rate: 2.048 Mbps
Mode: Closed Network
Satellite Framing: None
Scrambler: V.35 (IESS)
Inner FEC: 1/2 Rate Viterbi
Outer FEC: Disabled
Modulation: QPSK
Frequency: 950 MHz
To lock up the modem, enter ‘IF Loopback Enable’ under the Test Menu, or connect a Loopback
Cable from TX port to RX port.
undesirable network loops. Before you do any data test with an Ethernet interface,
make sure to use two modems connected back-to-back. If you use one modem and a
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DMD1050 Satellite Modem Board Installation
IMPORTANT
Make sure that the modem’s input DC power is clean, stable and free of spikes.
and may be incorrect.
2.6 Modulator Chec kout
The following descriptions assume that the DMD1050 is installed in a suitable location with
clean, stable DC power. Make sure that DC spikes are not present during initial power up.
2.6.1 Initial Power-Up
If the input DC power is of poor quality, it will damage the unit .
Before connecting power to the unit, disconnect the transmit output from the
operating ground station equipment. Communication traffic can be disrupted
by connecting power to a unit when the configuration settings are not known
New units are shipped with the transmit carrier set to OFF.
The initial field checkout of the modem can be accomplished from the Web Browser or Terminal
Mode. The Web Browser and Terminal Mod e has the advantage of providing full screen acce ss
to all of the modem’s parameters, but requires a separate terminal or computer running a
Terminal Program. The modem is configured with the Web Browser enabled.
2.6.2 M&C Web Browser Setup
The Ethernet M&C Interface requires a standard RJ45 Male connector. The Ethernet Interface is
shipped from the factory in an addressable defaulted condition that allows the user to access the
unit. This condition is identified as IP TEST MODE. .
Boot Modes: IPTEST
IP Address Mask: 255.255.255.000
Modem IP Address: 192.168.0.238
Server IP Address: 192.168.000.101
Router IP Address: 192.168.000.102
Refer to section C & D for proper setup of the Ethernet M&C Interface.
Connect an Ethernet cable between the unit and a computer that has web browser capability.
Access the browser and enter the default web address for the unit.
Refer to Section 4
Refer to Appendix C
Setup.
for a complete description of the GUI Interface operation and parameters.
and Appendix D for proper setup of the TCP-IP interface and Web Browser
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DMD1050 Satellite Modem Board Installation
Web Browser and Terminal Interfaces Reset
See Section 3 for more information.
IMPORTANT
2.6.3 M&C Terminal Setup
The initial field checkout of the modem can also be accomplished from the Terminal Mode. The
Terminal Mode has the advantage of providing full screen access to the modem’s para met er s, but
requires a separate terminal or computer running a Terminal Program such as Hyp er-ter minal an d
connection to the applicable pins on the M&C connector J1. The recommended terminal setup is
as follows (These settings can be changed via the Web Browser):
Emulation Type: VT-100
Baud Rate: 19.2 K
Data Bits: 8
Parity: No Parity (Fixed)
If you cannot access the Web Browser or Terminal interface, reset the
interface defaults. To reset the interface defa ults, use the shorting plug
(CNRSHUNT). Obey these steps:
1. Make sure the electrical power to the unit is disconnected.
2. Find the JP5 and JP6 connectors.
3. Find pins 1 and 2 on the JP5 and JP6 connectors.
4. Install the CNRSHUNT shorting plug on pins 1 and 2 of JP5 and pins
1 and 2 of JP6.
5. Connect the electrical power to the unit.
6. This will reset the interface defaults.
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DMD1050 Satellite Modem Board Installation
2.7 Storage
It is recommended that the unit be stored in its original sealed packing. The unit should be stored
in a dry location where the temperature is stable, away from direct contact with rain, snow, wind,
sun, or anything that may cause damage.
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L - Band
IF
Card
Digital
Baseband
Card
(
Interface
&
Turbo
)
Cable
Chapter 3. Theory of Operation
3.1 DMD1050 Hardware
The DMD1050 is based on a two printed circuit card design. The standard configuration consists
of an L-Band Assembly and a Digital Baseband Assembly. This configuration includes built in
Data interfaces and a number of different software upgrade options. A block diagram of the
DMD1050E is shown in Figure 3-1.
Figure 3-1. DMD1050 Block Diagram
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DMD1050 Satellite Modem Board Theory of Operation
Quadrature
Demodulator
IF Board Connector (40-Pin Header)
Demodulator I
Demodulator I Inv.
Demodulator Q
Demodulator Q Inv.
AGC
L-Band
Synthesizer
PDA
Analog Q Inv.
Analog I Inv.
L-Band
Synthesizer
Quadrature
Modulator
Analog Q
Analog I
LPF
LPF
Switch
RxLB
TxLB
Coupler
DCSA
3.1.1 DMD1050 L-Band Printed Circuit Card
The L-Band/IF Printed Circuit Card consists of an analog modulation function, an analog
complex down conversion, and two wide-band digital synthesizers. The block diagram of the LBand Assembly is shown in Figure 3-2.
Figure 3-2. L-Band Assembly
In the modulator, analog in-phase (I) and quadrature (Q) signals are generated on the Digital
Baseband Printed Circuit Card, routed to the L-Band Printed Circuit Card, and modulated at the
desired frequency. The L-Band modulated signal is then passed through a microprocessor
controlled variable attenuator providing gain control of the output signal.
In the complex downconverter, the signal for demodulation is amplified and sent through a
variable wideband attenuator for AGC. Th e gain-controlled signal is then passed through a
complex downconverter to a low IF.
3.1.2 DMD1050 Baseband Processing Printed Circuit Card
The advent of million-plus gate count FPGAs, advanced logic syn thesis tools, and DSPs
providing hundreds of MIPs enabled the design of a software configurable mod em. Large, fast
FPGAs now provide designers with what is essentially an on the fly programmable ASIC . High
speed, complex digital logic functions that previously could only be implemented in dedicated
integrated circuits are now download ed from a micro-controller through a serial or peripheral
interface. When a new digital logic function is needed, a new configuration file is loaded into the
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DMD1050 Satellite Modem Board Theory of Operation
Battery
Xtal
uProcessor
PCMCIA
Controller
SCC2
SMC2
SCC3
GPIO
uProc
Bus
SPI
40
MHz
x2
Compact
Flash
Demodulator
FPGA
SDRAM
2 x
Boot
Flash
8 Mbx8
256 Mbx16
25 MHz
Xtal
Ethernet
PHY
Relays
Fault
(DB9)
RLLP
Terminal
Ethernet
DAC
AGC
Modulator
FPGA
SCT/SCTE
Rx SAT
Loopback
80 MHz
uProc Bus
SPI Bus
I/Q
TP
2 x
r2r
Q
I
ADC
ADC
Analog I Filter
Analog I Inv Filter
Analog Q Inv Filter
Analog Q Filter
Alias
Filter
Alias
Filter
Analog I Unfilter
Analog I Inv Unfilter
Analog Q Unfilter
Analog Q Inv Unfilter
DMD1050 IF Board Connector (40-Pin Header)
I
Q
Analog Q Inv Unfilter
Analog Q Unfilter
Analog I Inv Unfilter
Analog I Unfilter
Analog I Filter
Analog I Inv Filter
Analog Q Filter
Analog Q Inv Filter
Alias
Filter
Alias
Filter
ADC
ADC
DB-25 Sync Data (RS-422, MIL-STD-188-114A) & Ethernet 10Base-T
TPC Codec
ADC
Serial
EEPROM
SPI Bus
SPI Bus
Terrestrial Data
LPF
DAC
Tx
Clk
SCT
LPF
R2R
SCT
R2R
LPF
Insert DSP
Mem Space DMA
Drop DSP
Mem Space DMA
Buf
SRAM
40 MHz
40 MHz
Async (DB-9)
Buffers
Terrestrial Data
Buffers
Terrestrial Data
Buffers
10 Mhz
OCXO
PLL
Buffers
Buffers
FPGA. There is no limit to the number of digital logic configurations available to the FPGA,
aside from the amount of Flash memory availabl e to the system microprocessor for storage of
configuration files.
The DMD1050 Baseband Processing Printed Circuit Card provides a flexible architecture that
allows many different modes of terrestrial and satellite framing, various FEC options, digital
voice processing, and several different modulation/demodulation formats. Also included on the
Baseband Printed Circuit Card is a MIL-188-114A/RS-422 synchronous interfaces and a two port
10/100 Ethernet Bridge interface.
A block diagram of the Baseband Processing Card is shown in Figure 3-3.
Figure 3-3. DMD1050 Baseband Processing Card B lock Diagram
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DMD1050 Satellite Modem Board Theory of Operation
The DMD1050 supports IBS & IDR compatible framing modes. Since
supported in a Closed network Mode.
IMPORTANT
The Baseband Printed Circuit Card also contains the Monitor and Control (M&C) Circuitry
responsible for:
Programmable part setup and initiali zation
Continuous control and adjustment of some functions
Calibration
Monitoring fault status
Calculating and displaying measurements
Calculations
User monitor and control interface including front panel and remote
Unit’s configuration and feature set
The M&C System is based on a powerful microprocessor with a large amount of Flash memory.
Several bus architectures are used to interconnect the M&C to all components of the DMD1050.
Communication to the outside world is done via connections to the remote port, terminal port,
Ethernet port, and alarm ports. The M&C runs off software programmed into its Flash memory.
The memory can be reprogrammed via the E thernet port to facilitate changes in software.
3.2 DMD1050 Functional Block Diagram
Figure 3-4 represents the DMD1050 Functional Blocks. The modem is shown in a typical
application with customer data, Tx/Rx RF equipment and an antenna.
3.2.1 Baseband Proces si ng
The Baseband Processor performs all of the functions required for an IBS/IDR Framing Unit, a
Reed-Solomon Codec. In addition, the Baseband Processing Section provides for transmit clock
selection and rate adaptation as well as a rate adapter and Plesiochronous/Dopp ler (PD) Buffer in
the receive direction. A multiplexer is also provided for the SCT Clock Source for Loop Timing
Applications. The transmit and receive paths may be configured independently under processor
control.
the modem does not have all supporting interfaces as stipulated by
IESS308/309, it is not 100% compliant. IBS and IDR framing modes are
3.2.2 Tx Baseband Proces si ng
The Tx Data and Clock enters the Baseband Pr ocessor, passes through a Rate Adapting F I FO and
enters the Framer Processor. In Closed -Net Mode, the data passes through the framer unaltered.
In IDR & IBS framining enabled, it adds the appropriate framing as defined in IESS-308 and
309. The data is then sent to the Reed-Solomon Encoder.
The Reed-Solomon Encoder, encodes the data into Reed-Solomon Blocks. The blocks are then
interleaved and synchronized to the frame pattern as defined by the selected specification (IESS308, IESS-309, DVB, etc.). After Reed-Solomon Encoding, the composite data and clock are
applied to the BB Loopback Circuit.
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