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CDM-740
User Manual
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Comtech EF Data CDM-740 User Manual

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CD
Advanced Satellite Modem
Installation and Operation Manual
4
IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice.
Part Number
MN-CDM740 Revision 0
Errata A
Comtech EF Data Documentation Update
Errata Page 1 of 4
Subject:
Date:
Original Manual Part Number/Rev:
Errata Number/ Agile Document ID:
Agile CO Number: Comments:
Affected content:
Update CDM-740 Firmware Upgrade Procedure, Front Panel Operation, and Web Server login parameters
January 19, 2010
MN-CDM740 Rev 0
ER-MNCDM740.EA0 CO 10672 Affected manual / page content will be updated, as indicated below
and on the pages that follow, upon next formal manual revision.
• Chapter 4. FLASH UPGRADING,
Update Sect. 4.2 Ethernet Upload Procedure
• Chapter 5. FRONT PANEL OPERATION,
Replace Sect. 5.4.2.5 (CONFIG:) Rx Æ Data
• Chapter 6. ETHERNET MANAGEMENT,
Replace Sect. 6.5.3. User Login
AGILE DOC ID ER-MNCDM740.EA0 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO10672
I. Chapter 4. FLASH UPGRADING
Update Sect. 4.2 Ethernet Upload Procedure (pages 4-2, 4-3)
Instructions: Steps 3, 4, and 9 in Sect. 4.2 are replaced in their entirety as follows:
3. Download the correct firmware file to this temporary folder. As shown in Figure 4-1:
Errata Page 2 of 4
o o
1. Go online to: www.comtechefdata.com
;
2. Click on: Support tab;
3. Click on: Software Downloads drop-down or hyperlink from Support page;
4. Click on: Download Flash and Software Update Files icon;
5. Click on: (Select a Product Line) Satellite Modems hyperlink;
6. Select the CDM-740 product hyperlink;
7. Select the appropriate firmware hyperlink.
About Firmware Numbers, File Versions, and Formats: The flashable files on the download server are organized by product prefix; firmware number (verify that the correct firmware number is known – see Step 1); revision letter, if applicable; and release version.
The downloadable for the CDM-740 base modem bulk firmware is named F0000279x_V###, where “x” denotes the revision letter, and “###” the firmwar e version. The do wnl oada ble fil es are stored in two formats: *.exe (self-extracting) and *.zip (compressed). Some firewalls will not allow the downloading of *.exe files; in this case, download the *.zip file instead.
The current version firmware release is provided. If applicable, one version prior to the current release is also available. Be sure to identify and download the desired version.
For additional help with "zipped" file types, refer to PKZIP for Windows, WinZip, or ZipCentral help files. PKZIP for DOS is not
supported due to file naming conventions.
4. Extract the files into the temporary folder on the PC. At least two files should be
extracted (where the “x” in each filename represents the firmware revision letter):
• FW-0000279x.pkg, the bulk image file;
• ReleaseNotes_FW-0000279x.pdf, the firmware release notes document.
o o o o
9. Transfer the files: Type "put FW-0000279*.pkg" to begin the file transfers. It will take
a few seconds to transfer the file.
AGILE DOC ID ER-MNCDM740.EA0 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO10672
II. Chapter 5. FRONT PANEL OPERATION
Replace Sect. 5.4.2.5 (CONFIG:) Rx Æ Data (page 5-10)
Instructions: Sect. 5.4.2.5 is replaced in its entirety as follows:
Errata Page 3 of 4
AGILE DOC ID ER-MNCDM740.EA0 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO10672
III. Chapter 6. ETHERNET MANAGEMENT
Replace Sect. 6.5.3 User Login (page 6-5)
Instructions: Sect. 6.5.3 is replaced in its entirety as follows:
Errata Page 4 of 4
AGILE DOC ID ER-MNCDM740.EA0 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO10672
CDM-740
Advanced Satellite Modem
Installation and Operation Manual
Part Number MN-CDM740
Revision 0
December 17, 2009
Copyright © 2009 Comtech EF Data. All rights reserved. Printed in the USA.
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

TABLE OF CONTENTS .............................................................................................................. III
TABLES ...................................................................................................................................... IX
FIGURES .................................................................................................................................... IX
PREFACE ................................................................................................................................... XI
About this Manual
Reporting Comments or Suggestions Concerning this Manual ............................................................... xi
Conventions and References ..................................................................................................................... xi
Metric Conversion ................................................................................................................................... xi
Recommended Standard Designations ..................................................................................................... xi
Trademarks .............................................................................................................................................. xi
Cautions and Warnings ............................................................................................................................ xii
Electrical Safety and Compliance ............................................................................................................ xii
Fuses ....................................................................................................................................................... xii
Low Voltage Directive (LVD) ............................................................................................................... xiii
Installation.............................................................................................................................................. xiii
Environmental .......................................................................................................................................... xiii
Telecommunications Terminal Equipment Directive ........................................................................... xiv
CE Mark ................................................................................................................................................... xiv
RoHS Compliance .................................................................................................................................... xiv
EMC (Electromagnetic Compatibility) Compliance ............................................................................. xiv
..................................................................................................................................... xi
Warranty Policy ........................................................................................................................................ xv
Limitations of Warranty .......................................................................................................................... xv
Exclusive Remedies ............................................................................................................................... xvi
Customer Support ................................................................................................................................... xvii
Online Customer Support ..................................................................................................................... xvii
CHAPTER 1.INTRODUCTION ............................................................................................. 1–1
1.1 Overview ...................................................................................................................................... 1–1
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CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
1.2 Functional Description ............................................................................................................... 1–2
1.3 Features ........................................................................................................................................ 1–4
1.3.1 Physical Description ............................................................................................................. 1–4
1.3.2 Compatibility ........................................................................................................................ 1–4
1.3.3 Major Assemblies ................................................................................................................. 1–4
1.3.4 Dimensional Envelope .......................................................................................................... 1–5
1.3.5 Physical Features .................................................................................................................. 1–6
1.3.5.1Front Panel ........................................................................................................................ 1–6
1.3.6 Rear Panel ............................................................................................................................. 1–7
1.3.7 Data Interfaces ...................................................................................................................... 1–7
1.3.11 Supporting Hardware and Software ...................................................................................... 1–9
1.4 New in this Release ...................................................................................................................... 1–9
1.5 Summary of Specifications ....................................................................................................... 1–10
1.5.1 Transmit / Modulator .......................................................................................................... 1–10
1.5.2 Receive / Demodulator........................................................................................................ 1–11
1.5.3 Data Interfaces .................................................................................................................... 1–12
1.5.4 Data Rate Ranges ................................................................................................................ 1–12
1.5.5 Miscellaneous ..................................................................................................................... 1–13
1.5.6 Approvals ............................................................................................................................ 1–13
CHAPTER 2.INSTALLATION .............................................................................................. 2–1
2.1 Unpacking and Inspectio
n .......................................................................................................... 2–1
2.2 Mounting ...................................................................................................................................... 2–2
2.2.1 Optional Rear-Mounting Support Bracket Installation ......................................................... 2–2
CHAPTER 3.REAR PANEL CONNECTOR PINOUTS ........................................................ 3–1
3.1 Connector Overview ................................................................................................................... 3–1
3.2 IF Connections ............................................................................................................................ 3–3
3.2.1 Rx IF Connectors .................................................................................................................. 3–3
3.2.2 Tx IF Connectors .................................................................................................................. 3–3
3.3 Terrestrial Data Connections ..................................................................................................... 3–3
3.3.1 GE-1 and GE-2 Ethernet Connectors, RJ-45 ........................................................................ 3–3
3.3.2 FE (Fast Ethernet) Connector, RJ-45 .................................................................................... 3–3
3.3.3 ASI IN/OUT 1 & 2 Connectors, BNC (UNUSED) .............................................................. 3–4
3.4 Utility Connections ...................................................................................................................... 3–4
3.4.1 TERM Connector, RJ-12 ...................................................................................................... 3–4
3.4.2 REDUNDANT Connector, DB-9F ....................................................................................... 3–4
3.4.3 Remote Control Interface Connector, DB-9M ...................................................................... 3–5
3.4.4 EXT/INT REF Connector, BNC ........................................................................................... 3–5
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CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
3.5 Power / Ground Connections ..................................................................................................... 3–6
3.5.1 Alternating Current Power Connector .................................................................................. 3–6
3.5.2 Direct Current (DC) Power Connector (Optional) ................................................................ 3–6
3.5.3 Chassis Ground Connector .................................................................................................... 3–6
CHAPTER 4.FLASH UPGRADING ...................................................................................... 4–1
4.1 Flash Updating via Internet ....................................................................................................... 4–1
4.2 Ethernet FTP Upload Procedure ............................................................................................... 4–2
CHAPTER 5.FRONT PANEL OPERATION ......................................................................... 5–1
5.1 Description ................................................................................................................................... 5–1
5.1.1 Front Panel LED Indicators .................................................................................................. 5–2
5.1.2 Front Panel Keypad ............................................................................................................... 5–2
5.1.3 Front Panel Vacuum Fluorescent Display (VFD) ................................................................. 5–3
5.2 Front Panel Menu ....................................................................................................................... 5–3
5.2.1 Opening Screen ..................................................................................................................... 5–3
5.2.2 CDM-740 Front Panel Menu Matrix .................................................................................... 5–4
5.3 SELECT: (Main) Menu .............................................................................................................. 5–5
5.4 SELECT: Configuration ............................................................................................................ 5–6
5.4.1 CONFIG: Tx ......................................................................................................................... 5–6
5.4.1.1(CONFIG:) Tx Æ IF ......................................................................................................... 5–6
5.4.1.2(CONFIG:) Tx Æ Freq (Frequency) ................................................................................. 5–7
5.4.1.3(CONFIG:) Tx Æ Power .................................................................................................. 5–7
5.4.1
.4(CONFIG:) Tx Æ FEC ..................................................................................................... 5–7
5.4.1.5(CONFIG:) Tx Æ Mod (Modulation) ............................................................................... 5–7
5.4.1.6(CONFIG:) Tx Æ Data ..................................................................................................... 5–8
5.4.1.7(CONFIG:) Tx Æ Scrambler ............................................................................................ 5–8
5.4.2 CONFIG: Rx ......................................................................................................................... 5–9
5.4.2.1(CONFIG:) Rx Æ IF ......................................................................................................... 5–9
5.4.2.2(CONFIG:) Rx ÆFreq (Frequency) .................................................................................. 5–9
5.4.2.3(CONFIG:) Rx Æ FEC ..................................................................................................... 5–9
5.4.2.4(CONFIG:) Rx Æ Demod (Demodulation) .................................................................... 5–10
5.4.2.5(CONFIG:) Rx Æ Data ................................................................................................... 5–10
5.4.2.6(CONFIG:) Rx Æ Descram(bler) (DVB-S2 only) .......................................................... 5–11
5.4.2.7(CONFIG:) Rx Æ Pilot (DVB-S2 only) ......................................................................... 5–11
5.4.3 CONFIG: Clocks ................................................................................................................ 5–14
5.4.3.1(CONFIG:) Clocks Æ Ext-Ref ....................................................................................... 5–14
5.4.3.2(CONFIG:) Clocks Æ Int-Ref-Adj ................................................................................. 5–14
5.4.4 CONFIG: Remote ............................................................................................................... 5–15
5.4.4.1(CONFIG:) Remote Æ Serial ......................................................................................... 5–15
5.4.5 CONFIG: IP
........................................................................................................................ 5–15
5.4.5.1(CONFIG:) IP Æ (GE1 / GE2 / MGMT) ........................................................................ 5–16
5.4.5.2(CONFIG:) IP Æ (SNMP) Read-Cmty ........................................................................... 5–17
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CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
5.4.5.3(CONFIG:) IP Æ (SNMP) Write-Cmty .......................................................................... 5–18
5.4.5.4(CONFIG:) IP Æ SNMP Æ Trap ................................................................................... 5–18
5.4.6 CONFIG: Misc .................................................................................................................... 5–18
5.5 SELECT: Test ........................................................................................................................... 5–19
5.5.1 TEST: Mode ........................................................................................................................ 5–19
5.5.2 TEST: BERT ....................................................................................................................... 5–19
5.5.2.1TEST: Pattern .................................................................................................................. 5–19
5.6 SELECT: Monitor .................................................................................................................... 5–20
5.6.1 Monitor: Live-Alarms ......................................................................................................... 5–20
5.6.2 Monitor: Stored-Events ....................................................................................................... 5–21
5.6.2.1(Monitor:) Stored-Events Æ Clear-All ........................................................................... 5–21
5.6.2.2(Monitor:) Stored-Events Æ View .................................................................................. 5–21
5.6.3 Monitor: Rx-Params ............................................................................................................ 5–21
5.6.4 Monitor: IP-Stats ................................................................................................................. 5–22
5.7 SELECT: Store/Ld ................................................................................................................... 5–23
5.8 SELECT: Utility ........................................................................................................................ 5–24
5.8.1 Utilities: Set-RTC ............................................................................................................... 5–24
5.8.2 Utilities: Display-Brightness ............................................................................................... 5–24
5.8.3 Utilities: 1:1 ........................................................................................................................ 5–24
5.8.4 Utilities: 1:N (UNUSE
D) .................................................................................................... 5–25
5.8.5 Utilities: Circuit-ID ............................................................................................................. 5–25
5.8.6 Utilities: Firmware .............................................................................................................. 5–26
5.8.6.1(Utilities): Firmware Æ Info ........................................................................................... 5–26
5.8.6.2(Utilities): Firmware Æ Select ........................................................................................ 5–26
5.9 SELECT: ODU .......................................................................................................................... 5–27
5.9.1 ODU: (BUC:) BUC_LO ..................................................................................................... 5–27
5.9.1.1ODU: (BUC:) Power ....................................................................................................... 5–28
5.9.1.2ODU: (BUC:) 10M-Ref .................................................................................................. 5–28
5.9.1.3ODU: (BUC) Alarm ........................................................................................................ 5–28
5.9.1.4ODU: (BUC) Monitor ..................................................................................................... 5–28
5.9.1.5ODU: (LNB) LNB_LO ................................................................................................... 5–28
5.9.1.6ODU: (LNB) 22K-Tone .................................................................................................. 5–29
5.9.1.7ODU: (LNB) Polarity ...................................................................................................... 5–29
5.10SELECT: FAST ........................................................................................................................ 5–30
5.10.1 FAST: Options .................................................................................................................... 5–30
5.10.2 FAST: Configure ................................................................................................................ 5–30
5.10.2.1 FAST: Configure Æ Word# ........................................................................................ 5–31
5.10.3 FAST: Demo-Mode ............................................................................................................ 5–31
CHAPTER 6.ETHERNET MANAGEMENT .......................................................................... 6–1
6.1 Introduction ................................................................................................................................. 6–1
6.2 Ethernet Ma
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nagement Interface Protocols ............................................................................... 6–1
CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
6.3 SNMP Interface ........................................................................................................................... 6–1
6.3.1 Management Information Base (MIB) Files ......................................................................... 6–2
6.3.2 SNMP Community Strings ................................................................................................... 6–2
6.4 Telnet Interface ........................................................................................................................... 6–3
6.5 Web Server (HTTP) Interface ................................................................................................... 6–4
6.5.1 Web Server Introduction ....................................................................................................... 6–4
6.5.2 Web Server Menu Tree ......................................................................................................... 6–4
6.5.3 User Login ............................................................................................................................ 6–5
6.5.4 Web Server Page Descriptions .............................................................................................. 6–6
6.5.4.1Home (Splash) Page .......................................................................................................... 6–6
6.5.4.2Management Pages ........................................................................................................... 6–7
6.5.4.2.1Management | Main Page ............................................................................................ 6–7
6.5.4.2.2Management | SNMP Page ......................................................................................... 6–9
6.5.4.2.3Management | FAST Page ........................................................................................ 6–10
6.5.4.2.4Management | Firmware Page ................................................................................... 6–11
6.5.4.2.5Management | Auto Logout Page .............................................................................. 6–12
6.5.4.3Network Pages ................................................................................................................ 6–13
6.5.4.3.1Network | FE Mgt Page ............................................................................................. 6–13
6.5.4.3.2Network | GE-1 and GE-2 Pages .............................................................................. 6–15
6.5.4.4DEMOD (Demodulator) | Tuner-1 Page ......................................................................... 6–16
6.5.4.5DECAP (Decapsulator) | Tuner-1 Page .......................................................................... 6–18
6.5.4.6MOD (Modulator) Page .................................................................................................. 6–20
6.5.4.7Statistics Pages ................................................................................................................ 6–23
6.5.4
.7.1Statistics | Summary Page ......................................................................................... 6–23
6.5.4.7.2Statistics | Tuner-1 Page ............................................................................................ 6–24
6.5.4.7.3Statistics | GE-1 and GE-2 Pages .............................................................................. 6–25
6.5.4.7.4Statistics | Modulator Page ........................................................................................ 6–26
6.5.4.8Monitor Page ................................................................................................................... 6–27
6.5.4.9Utility Page ..................................................................................................................... 6–28
APPENDIX A.REMOTE CONTROL .................................................................................... A–1
A.1 Overview ..................................................................................................................................... A–1
A.2 EIA-232 ....................................................................................................................................... A–1
A.3 Basic Protocol ............................................................................................................................. A–1
A.4 Packet Structure ......................................................................................................................... A–2
A.4.1 Start of Packet ...................................................................................................................... A–2
A.4.2 Target Address ..................................................................................................................... A–2
A.4.3 Address Delimiter ................................................................................................................ A–2
A.4.4 Instruction Code ................................................................................................................... A–2
A.4.5 Instruction Code Qualifier ................................................................................................... A–3
A.4.6 Optional Message Arguments .............................................................................................. A–4
A.4.7 End of Packet ....................................................................................................................... A–4
A.5 Remote Commands and Queries .............................................................................................. A–5
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CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
A.5.1 Tx Parameters ...................................................................................................................... A–6
A.5.2 Rx Parameters ...................................................................................................................... A–9
A.5.3 Unit Parameters .................................................................................................................. A–12
A.5.4 Bulk Configuration Strings ................................................................................................ A–19
A.5.5 Modem Information ........................................................................................................... A–19
A.5.6 Modem Performance Information ...................................................................................... A–21
A.5.7 BUC Parameters (L-Band Device)..................................................................................... A–23
APPENDIX B. FAST ACTIVATION PROCEDURE .............................................................. B–1
B.1 FAST System Overview ............................................................................................................. B–1
B.2 FAST Activation Procedure ...................................................................................................... B–2
B.2.1 Serial Number ...................................................................................................................... B–2
B.2.2 View currently installed features ......................................................................................... B–2
B.2.3 Enter Access Codes .............................................................................................................. B–2
APPENDIX C. 1:1 REDUNDANCY ....................................................................................... C–1
C.1 Overview ..................................................................................................................................... C–1
C.2 Introduction ................................................................................................................................ C–2
C.3 CDM-740 1:1 Redundancy Setup ............................................................................................. C–3
C.3.1 User (IF) Æ CRS-175L Æ CDM-740 Æ User (Data Interface) Cabling ............................ C–3
C.3.1.1User Æ CRS-175L Æ CDM-740 IF and Control Cabling .............................................. C–4
C.3.1.2CDM-740 Æ User Data Interface Cabling Connections
................................................. C–5
C.3.2 CDM-740 1:1 Redundancy Operations via the CDM-740................................................... C–6
C.3.2.1Redundancy Operation via the Front Panel ..................................................................... C–6
C.3.2.2Redundancy Operation via Telnet Remote Control ......................................................... C–7
C.3.2.3Redundancy Operation via the Web Server Interface ...................................................... C–8
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CDM-740 Advanced Satellite Modem Revision 0 Table of Contents MN-CDM740
Tables
Table 3-1. CDM-740 Rear Panel Connectors ........................................................................................... 3–2
Table 3-2. TERM Connector Pin Assignments ....................................................................................... 3–4
Table 3-3. REMOTE Connector Pinouts ................................................................................................. 3–4
Table 3-4. Remote Control Connector Pinouts .................................................................................. ...... 3–5
Table 5-1. Tx Symbol Rate / Data Rate Ranges – TPC ............................................................................ 5–8
Table 5-2. Rx Symbol Rate / Data Rate Ranges – DVB-S ..................................................................... 5–12
Table 5-3. Rx Symbol Rate / Data Rate Range – DVB-S2 Normal FECFrame = 64,800 Bits .............. 5–12
Table 5-4. Rx Symbol Rate / Data Rate Range – DVB-S2 Short FECFrame = 16,200 Bits .................. 5–13
Figures
Figure 1-1. CDM-740 Satellite Modem .................................................................................................... 1–1
Figure 1-2. CDM-740 Network Topology ................................................................................................ 1–2
Figure 1-3. CDM-740 Dimensional Envelope .......................................................................................... 1–5
Figure 1-4. CDM-740 – Front Panel View ............................................................................................... 1–6
Figure 1-5. CDM-740 – Rear Panel View ................................................................................................ 1–7
Figure 2-1. Optional Rear-Mounting Support Bracket Installation .......................................................... 2–3
Figure 3-1. CDM-740 – Rear Panel View ................................................................................................ 3–1
Figure 4-1. Flash Update via Internet ....................................................................................................... 4–1
Figure 5-1. CDM-740 – Front Panel View ............................................................................................... 5–1
Figure 6-1. CDM-740 Advanced Satellite Modem Home (Splash) page ................................................. 6–6
Figure 6-2. Management | Main page ....................................................................................................... 6–7
Figure 6-3. Management | SNMP page ..................................................................................................... 6–9
Figure 6-4. Management | FAST page .................................................................................................... 6–10
Figure 6-5. Management | Firmware page .............................................................................................. 6–11
Figure 6-6. Management | Auto Logout page ......................................................................................... 6–12
Figure 6-7. Network | FE Management page .......................................................................................... 6–13
Figure 6-8. Network | GE-1 and GE-2 pages .......................................................................................... 6–15
Figure 6-9. DEMOD | Tuner-1 page ....................................................................................................... 6–16
Figure 6-10. Decapsulator | Tuner-1 page ............................................................................................... 6–18
Figure 6-11. Modulator page .................................................................................................................. 6–20
Figure 6-12. Statistics | Summary page ................................................................................................... 6–23
Figure 6-13. Statistics | Tuner-1 page ..................................................................................................... 6–24
Figure 6-14. Statistics | GE-1 and GE-2 pages ....................................................................................... 6–25
Figure 6-15. Statistics | Modulator page ................................................................................................. 6–26
Figure 6-16. Monitor page ...................................................................................................................... 6–27
Figure 6-17. Utility page ......................................................................................................................... 6–28
Figure C-1. CRS-175L L-Band 1:1 Redundancy Switch ......................................................................... C–1
Figure C-2. CRS-175L – 1:1 Redundancy (L-Band Simplex or Full Duplex Operation) ....................... C–2
Figure C-3. User Æ CRS-175L Æ CDM-740 IF and Control Cabling Example .................................... C–4
Figure C-4. User Æ CRS-175L Æ CDM-740 IF and Control Cabling Example .................................... C–5
Figure C-5. CDM-740 – Front Panel View .............................................................................................. C–6
Figure C-6. CDM-740 Web Server Interface Utility page ....................................................................... C–8
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x

PREFACE

About this Manual

This manual provides installation and operation information for the Comtech EF Data CDM-740 Advanced Satellite Modem. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the CDM-740.

Reporting Comments or Suggestions Concerning this Manual

Comments and suggestions regarding the content and design of this manual will be appreciated. To submit comments, please contact the Comtech EF Data Technical Publications Department:
TechnicalPublications@comtechefdata.com

Conventions and References

Metric Conversion

Metric conversion information is located on the inside back cover of this manual. This information is provided to assist the operator in cross-referencing non-Metric to Metric conversions.

Recommended Standard Designations

Recommended Standard (RS) Designations have been superseded by the new designation of the Electronic Industries Association (EIA). References to the old designations are shown only when depicting actual text displayed on the screen of the unit (RS-232, RS-485, etc.). All other references in the manual will be shown with the EIA designations.

Trademarks

Product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.
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CDM-740 Advanced Satellite Modem Revision 0 Preface MN-CDM740
The user should carefully observe the following information:
IMPORTANT

Cautions and Warnings

IMPORTANT or NOTE indicates a statement associated with the task being
IMPORTANT
CAUTION
WARNING
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.
Examples of Multi-Hazard Formats

Electrical Safety and Compliance

The CDM-740 has been shown to comply with the EN 60950 Safety of Information Technology Equipment, Including Electrical Business Machines safety standard.
The equipment is rated for operation over the range 100-240 volts AC or, appropriately equipped, 36-60 volts DC. It has a maximum power consumption of 300 watts.

Fuses

FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
CAUTION
The CDM-740 is fitted with two fuses – one each for line and neutral connections. These fuses are contained within the body of the IEC power inlet connectors, behind a hinged plastic flap.
Observe the following:
THE CORRECT TYPE AND RATING.
• For 230/115 volt AC operation, use T5A 20mm slow-blow fuses.
• For 48 volt DC operation, use a T8A 20mm blow-blow fuses.
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CDM-740 Advanced Satellite Modem Revision 0 Preface MN-CDM740

Low Voltage Directive (LVD)

The following information is applicable for the European Low Voltage Directive (2006/95/EC):
Symbol Description
<HAR>
!
Symbol Definition Symbol Definition
Type of power cord required for use in the European Community.
CAUTION: Double-pole/Neutral Fusing ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung
International Symbols
IMPORTANT

Installation

The installation and connection to the line supply must be made in compliance to local or national wiring codes and regulations.
The CDM-740 is designed for connection to a power system that has separate ground, line and neutral conductors. The equipment is not designed for connection to power system that has no direct connection to ground.
The CDM-740 is shipped with a line inlet cable suitable for use in the country of operation. If it is necessary to replace this cable, ensure the replacement has an equivalent specification. Examples of acceptable ratings for the cable include HAR, BASEC and HOXXX-X. Examples of acceptable connector ratings include VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO, DEMKO, BS1636A, BSI, SETI, IMQ, KEMA-KEUR and SEV.
Alternating
Current
Fuse
Protective
Earth
Chassis
Ground
For additional symbols, refer to Cautions and Warnings listed earlier in this Preface.

Environmental

The CDM-740 must not be operated in an environment where the unit is exposed to extremes of temperature outside the ambient range 0° to 50°C (32° to 122°F); precipitation, condensation, or humid atmospheres above 95% relative humidity; altitudes (un-pressurized) greater than 2000 metres; excessive dust or vibration; flammable gases; or corrosive or explosive atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide a stable environment is permitted. If such vehicles do not provide a stable environment, safety of the equipment to EN60950 may not be guaranteed.
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Telecommunications Terminal Equipment Directive

In accordance with the Telecommunications Terminal Equipment Directive 91/263/EEC, this equipment should not be directly connected to the Public Telecommunications Network.

CE Mark

Comtech EF Data declares that the CDM-740 modem meets the necessary requirements for the CE Mark.

RoHS Compliance

This unit satisfies (with exemptions) the requirements specified in the European Union Directive on the Restriction of Hazardous Substances, Directive 2002/95/EC, (EU RoHS).

EMC (Electromagnetic Compatibility) Compliance

In accordance with European Directive 89/336/EEC, the CDM-740 Modem has been shown, by independent testing, to comply with the following standards:
Emissions: EN 55022 Class B - Limits and methods of measurement of radio
interference characteristics of Information Technology Equipment. (Also tested to FCC Part 15 Class B)
Immunity: EN 50082 Part 1 - Generic immunity standard, Part 1: Domestic,
commercial and light industrial environment.
Additionally, the CDM-740 has been shown to comply with the following standards:
EN 61000-3-2 Harmonic Currents Emission EN 61000-3-3 Voltage Fluctuations and Flicker EN 61000-4-2 ESD Immunity EN 61000-4-4 EFT Burst Immunity EN 61000-4-5 Surge Immunity EN 61000-4-6 RF Conducted Immunity EN 61000-4-8 Power frequency Magnetic Field Immunity EN 61000-4-9 Pulse Magnetic Field Immunity EN 61000-4-11 Voltage Dips, Interruptions, and Variations Immunity EN 61000-4-13 Immunity to Harmonics
To ensure that the Modem continues to comply with these standards, observe
IMPORTANT
the following instructions:
• Connections to the transmit and receive IF ports (BNC female connectors) should be
made using a good quality coaxial cable - for example RG58/U (50Ω or RG59/U (75Ω).
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• All 'D' type connectors attached to the rear panel must have back-shells that provide
continuous metallic shielding. Cable with a continuous outer shield (either foil or braid, or both) must be used, and the shield must be bonded to the back-shell.
• The equipment must be operated with its cover on at all times. If it becomes necessary to
remove the cover, the user should ensure that the cover is correctly re-fitted before normal operation commences.

Warrant y Policy

Comtech EF Data products are warranted against defects in material and workmanship for a specific period from the date of shipment, and this period varies by product. In most cases, the warranty period is two years. During the warranty period, Comtech EF Data will, at its option, repair or replace products that prove to be defective. Repairs are warranted for the remainder of the original warranty or a 90 day extended warranty, whichever is longer. Contact Comtech EF Data for the warranty period specific to the product purchased.
For equipment under warranty, the owner is responsible 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.

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 transportation 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.
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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 products, or for any inability to use them either separate from or in combination with any other equipment or products.
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.

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.
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Customer Support

Refer to p. xv in this Preface for information regarding this product’s Warranty Policy.
Contact the Comtech EF Data Customer Support Department for:
• Product support or training
• Reporting comments or suggestions concerning manuals
• Information on upgrading or returning a product
A Customer Support representative may be reached at:
Comtech EF Data Attention: Customer Support Department 2114 West 7th Street Tempe, Arizona 85281 USA
480.333.2200 (Main Comtech EF Data number)
480.333.4357 (Customer Support Desk)
480.333.2161 FAX
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or replaceme nt:
• Contact the Comtech EF Data Customer Support Department. Be prepared to supply
the Customer Support representative with the model number, serial number, and a description of the problem.
• Request a Return Material Authorization (RMA) number from the Comtech EF Data
Customer Support representative.
• Pack the product in its original shipping carton/packaging to ensure that the product
is not damaged during shipping.
• Ship the product back to Comtech EF Data. (Shipping charges should be prepaid.)

Online Customer Support

An RMA number request can be requested electronically by contacting the Customer Support Department through the online support page at
• Click on the “Service” hyperlink, then read the “Return Material Authorization”
section for detailed instructions on our return procedures.
• Click on the “RMA Request Form” hyperlink, then fill out the form completely
before sending.
• Send e-mail to the Customer Support Department at service@comtechefdata.com.
www.comtechefdata.com/support.asp:
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Notes:
xviii

1.1 Overview

The CDM-740 Advanced Satellite Modem (Figure 1-1) is Comtech EF Data’s point-to-multipoint IP satellite modem that provides integrated DVB-S/S2 CCM and VCM demodulation with low latency Turbo Product Coding (TPC) return modulation technology. The CDM-740 was developed as the “spoke” or remote site equipment in hub and spoke network topologies that require high quality, ‘always-on’ availability.
Featuring dual Gigabit Ethernet interfaces and industry-leading packet per second (pps) processing and throughput, the CDM-740 offers the ideal platform for Internet Service Providers (ISPs), Satellite Service Providers, Enterprise Networks, Offshore, and Broadcasters for a wide range of applications – point-to multipoint IP networks, rapid ISP market penetration, high speed communications, high speed content delivery (digital signage and cinema), and IPTV / business television.

Chapter 1. INTRODUCTION

Figure 1-1. CDM-740 Satellite Modem
The CDM-740’s high-performance architecture allows efficient IP networking and transport over satellite links while supporting a wide range of applications and network topologies. Key operational features include:
• Transmit data rate: TPC 16 kbps to 9.98 Mbps
• Receive data rate: DVB-S/S2 up to 167 Mbps
• Transmit IF: 950 to 2150 MHz or 50 to 180 MHz
• Receive IF: 950 to 2150 MHz
• Data Interfaces: 2X 10/100/1000 BaseT Ethernet
• Management: 10/100 BaseT Ethernet with web and SNMP, EIA-232 with CLI
• Modulation types: TPC QPSK, 8-QAM, 16-QAM
• Demodulation: DVBS – QPSK; DVB-S2 – LDPC+BCH QPSK, 8-PSK, 16-APSK
• Firmware – Flash Upgrading
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• 1:1 redundancy switch compatibility
• The CDM-740 front panel features a Video Fluorescent Display (VFD) and keypad for
local configuration and control; additionally, the unit may be remote-controlled.
• The CDM-740 is compact – 1RU high X 18.14” deep – and consumes 80 watts
(maximum, without BUC supply) or 300 watts (maximum, with BUC supply).
• Multiple configurations available, including receive-only and duplex.

1.2 Functional Description

Figure 1-2. CDM-740 Network Topology
Figure 1-2
illustrates the CDM-740 Advanced Satellite Modem as deployed in a typical satellite-
based communications network. The CDM-740 utilizes a high performance processor and a real-time operating system (RTOS)
combined with multiple Field Programmable Gate Arrays (FPGAs) for optimal performance. All non-volatile memory is provided by both onboard and Compact Flash devices. Field upgrades are easily loaded via the Ethernet port; software-based options are added to the unit via FAST (Fully Accessible System Topology) upgrade.
The CDM-740 runs on an embedded operating system and does not have moving parts for media storage. This design provides carrier class reliability and high speed, purpose-driven processing. The unit can be managed through multiple interfaces providing options for both in-band and out­of-band monitor and control:
• SNMP MIB II and Private MIB, HTTP Web-based Management
• Telnet (CLI), Terminal Port (CLI)
• Serial 232/485 and Front Panel control
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The platform includes support for constant coding and modulation (CCM) and variable coding and modulation (VCM) operation. VCM allows operators to define groups of remotes that can have different modulation and coding parameters to improve efficiency on existing satellite capacity.
The CDM-740 supports reception and transmission of IP data over satellite links via two fundamentally different types of interface – IF and data:
• The IF interface provides a bidirectional link with the satellite via the uplink and downlink
equipment.
• The data interface is a bidirectional path, which connects with the customer’s equipment
(assumed to be the DTE) and the modem (assumed to be the DCE). All terrestrial data is connected using up to two (2) available 10/100/100 BaseT Ethernet interfaces.
On the transmit side: The return modulator transmits IP datagrams and is compatible with the Comtech EF Data’s CDM-570/L modems and CDD-562L/564/564L demodulators located at a hub site.
Transmit data is received by the terrestrial interface wher e line receivers convert the data signals to CMOS levels for further processing. A small FIFO follows the terrestrial interface to facilitat e the various framing options.
In the FEC encoder, the data is differentially encoded, scrambled, and then TPC-encoded. Following the encoder, the data is fed to the tran smit digital filters, which perfo rm spectral sh aping on the data signals. The resultant I and Q signals are then fed to the QPSK, 8-QAM, or 16-QAM modulator. The carrier is generated by a frequency synthesizer, and the I and Q signals directly modulate this carrier to produce an IF output signal.
Turbo Product Codec (TPC) Return Modulator Hardware Option: The CDM-740 has an optional return modulator providing a very low latency SCPC return link with data rates from 16Kbps to
9.98Mbps. Available modulations are QPSK, 8-PSK and 16-QAM with FEC rates of 21/44, 3/4, 7/8 and 0.95 providing numerous options to balance power and bandwidth on duplex circuits.
On the receive side: The DVB-S / DVB-S2 demodulator supports MPE/IP Decapsulation (ETSI EN 301 192 Multi-Protocol Encapsulation) and Program Identifier (PID) filtering for up to 256 unique PIDs.
DVB-S and DVB-S2 Receiver: The CDM-740’s demodulator supports DVB-S QPSK up to 45Msps, DVB-S2 QPSK, 8-PSK and 16-APSK demodulation up to 62 Msps with receive d ata rates up to 167 Mbps depending on the modulation type and code rate. In DVB-S2 operation, the receiver operates in the CCM and VCM modes. The receiver automatically detects for pilots ON/OFF and supports spectral rolloff of 20%, 25% or 35%.
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1.3 Features

1.3.1 Physical Description

The CDM-740 Advanced Satellite Modem is constructed as a 1RU-high rack-mounting chassis, which can be free-standing if desired. Rack handles at the front to facilitate removal from and placement into a rack.
The CDM-740 is comprised of two printed circuit board assemblies. All operational upgrades and enhancements are afforded via remote firmware upgrade.

1.3.2 Compatibility

The CDM-740 Satellite modem transmits industry standard TPC interoperable with Comtech EF Data’s CDM-570/L, CDM-562L, and CDM-564/L modems up to 9.98 Mbps. The receive side supports DVB-S/S2 operation at L-Band up to 62 Msps, and is compatible with Comtech EF Data’s CDM-710 Broadcast Satellite Modulator for CCM operation, or Comtech EF Data’s Radyne DM240XR Digital Video Broadcast Modulator for CCM and VCM operation.

1.3.3 Major Assemblies

Assembly Description
PL-0000591 Chassis - AC PL-0000492 PCB Main Board and Modem Card PL-0000344 Turbo Product Code Card
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1.3.4 Dimensional Envelope

Figure 1-3. CDM-740 Dimensional Envelope
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1.3.5 Physical Features

1.3.5.1 Front Panel
LED
Indicators
Keypad
Vacuum Fluorescent
Display (VFD)
Figure 1-4. CDM-740 – Front Panel View
Figure 1-4 shows the front panel of t
he modem. The CDM-740 front panel features (from left):
eight LED indicators; a keypad; and a Vacuum Fluorescent Display (VFD):
• The LEDs indicate, in a summary fashion, the status of the unit.
• The user enters data via the keypad, which is comprised of six individual keyswitches
featuring a positive ‘click’ action (providing tactile feedback).
• Messages and command prompts are displayed on the VFD.
The function and behavior of the LED indicators, keypad, and VFD is described in detail in Chapter 5. FRONT PANEL OPERATION.
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