Comtech EF Data CDM-600, CDM-600L User Manual
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/CDM600L.IOM Revision 3
CDM-600/600L
Open Network Satellite Modem (2.4 kbps – 20 Mbps)
CDM-600 – 70/140 MHz (Firmware Version 2.2.6 or higher)
CDM-600L – L-Band (Firmware Version 1.5.0 or higher)
Installation and Operation Manual
(see New in this Release – Section 1.4)
Note: This manual incorporates data for the CDM-600 and CDM-600L Manuals
Errata Page 1 of 4
Errata A
Comtech EF Data Documentation Update
Subject:
Date:
Original Manual Part
Number/Rev:
Errata Number/
Agile Document ID:
Agile CO Number:
Comments:
Affected content: Chapter 4 pages 4-2 and 4-3.
Update CDM-600/L Flash Upgrade Procedure
March 26, 2010
MN/CDM600L.IOM Rev 3
ER-MNCDM600L.EA3
C11327
Affected manual page content will be updated, as indicated below,
upon next formal manual revision.
Sect. 4.2 in Chapter 4 is superseded in its entirety with the pages
provided in this Errata.
AGILE DOC ID ER-MNCDM600L.EA3 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE C11327
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CDM-600/600L
Open Network Satellite Modem (2.4 kbps – 20 Mbps)
CDM-600 – 70/140 MHz (
CDM-600L – L-Band (
Installation and Operation Manual
(see New in this Release – Section 1.4)
Note: This manual incorporates data for the CDM-600 and CDM-600L Manuals
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161
Firmware Version 2.2.6 or higher)
Firmware Version 1.5.0 or higher)
Part Number MN/CDM600L.IOM
Revision 3
June 25, 2009
Copyright © 2009 Comtech EF Data. All rights reserved. Printed in the USA.
This page is intentionally blank.
Table of Contents
TABLE OF CONTENTS .............................................................................................................. III
TABLES .................................................................................................................................... XIII
FIGURES .................................................................................................................................. XIII
PREFACE .................................................................................................................................. XV
About this Manual
About the Revision Level and Information Provided in this Manual ..................................................... xv
Reporting Comments or Suggestions Concerning this Manual .............................................................. xv
Conventions and References ................................................................................................................... xvi
Metric Conversion ................................................................................................................................. xvi
Cautions and Warnings .......................................................................................................................... xvi
Recommended Standard Designations ................................................................................................... xvi
Electrical Safety ....................................................................................................................................... xvi
Fuses ..................................................................................................................................................... xvii
Environmental ....................................................................................................................................... xvii
Installation............................................................................................................................................. xvii
EMC (Electromagnetic Compatibility) ................................................................................................ xviii
Warranty Policy ....................................................................................................................................... xix
Limitations of Warranty .......................................................................................................................... xx
Exclusive Remedies ................................................................................................................................ xx
Customer Support .................................................................................................................................... xxi
Online Customer Support ...................................................................................................................... xxi
.................................................................................................................................... xv
CHAPTER 1. INTRODUCTION ............................................................................................. 1–1
1.1 Overview ...................................................................................................................................... 1–1
1.1.1 Standard Features .................................................................................................................. 1–1
CDM-600/600L Common Features .............................................................................. 1–2
CDM-600L Features ...................................................................................................... 1–2
CDM-600 Features ......................................................................................................... 1–2
1.2 Functional Description ............................................................................................................... 1–3
1.3 Features ........................................................................................................................................ 1–5
1.3.1 Physical Description ............................................................................................................. 1–5
1.3.2 Compatibility ........................................................................................................................ 1–5
1.3.3 Major Assemblies ................................................................................................................. 1–5
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1.3.4 Dimensional Envelopes......................................................................................................... 1–6
1.3.5 Physical Features .................................................................................................................. 1–8
1.3.5.1 Front Panel ........................................................................................................................ 1–8
1.3.5.2 Rear Panel ......................................................................................................................... 1–9
1.3.6 Hardware Options ............................................................................................................... 1–10
1.3.6.1 CDM-600L Hardware Option ......................................................................................... 1–10
1.3.6.2 CDM-600 Hardware Options .......................................................................................... 1–10
1.3.7 Data Interfaces .................................................................................................................... 1–12
1.3.8 Verification ......................................................................................................................... 1–12
1.3.9 AUPC .................................................................................................................................. 1–12
1.3.10 EDMAC .............................................................................................................................. 1–12
1.3.11 Flash Upgrading Modem Firmware .................................................................................... 1–13
1.3.12 Fully Accessible System Topology (FAST) ....................................................................... 1–13
FAST System Theory .................................................................................................. 1–13
FAST Implementation ................................................................................................. 1–13
FAST Accessible Options ........................................................................................... 1–14
1.3.13 Supporting Hardware and Software .................................................................................... 1–15
SatMac Complete Systems Operation ......................................................................... 1–15
Redundancy Applications ............................................................................................ 1–15
ODU Interoperability via FSK / EDMAC .................................................................... 1–15
1.4 New in this Release .................................................................................................................... 1–17
1.4.1 CDM-600L Modem Firmware Release Notes .................................................................... 1–17
Release Ver. 1.5.0 (7/9/08) ......................................................................................... 1–17
1.4.2 CDM-600 Modem Firmware Release Notess ..................................................................... 1–17
Release Ver. 2.2.6 (6/26/08) ....................................................................................... 1–17
1.5 Summary of Specifications ....................................................................................................... 1–18
1.5.1 Modulator
............................................................................................................................ 1–18
1.5.2 Demodulator ....................................................................................................................... 1–21
1.5.3 Data Interfaces .................................................................................................................... 1–25
1.5.4 Automatic Uplink Power Control (AUPC) ......................................................................... 1–26
1.5.5 Data Rate Ranges ................................................................................................................ 1–26
1.5.6 Framing Summary .............................................................................................................. 1–27
1.5.7 Miscellaneous ..................................................................................................................... 1–27
1.5.8 Approvals ............................................................................................................................ 1–28
1.5.9 AGC Voltage ...................................................................................................................... 1–28
CHAPTER 2. INSTALLATION .............................................................................................. 2–1
2.1 Unpacking .................................................................................................................................... 2–1
2.2 Mounting ...................................................................................................................................... 2–2
2.2.1 Optional Rear-Mounting Support Brackets .......................................................................... 2–2
2.3 Configuration .............................................................................................................................. 2–3
2.4 Select Internal IF Loop ............................................................................................................... 2–4
2.5 Connect External Cables ............................................................................................................ 2–4
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CHAPTER 3. REAR PANEL CONNECTOR PINOUTS ........................................................ 3–1
3.1 Connector Overview ................................................................................................................... 3–1
3.2 IF Connections ............................................................................................................................ 3–3
3.2.1 J1 Rx IF Connectors .............................................................................................................. 3–3
3.2.2 J2 Tx IF Connectors .............................................................................................................. 3–3
3.3 Terrestrial Data Connections ..................................................................................................... 3–4
3.3.1 P3A Overhead Data Connector, DB-25M ............................................................................ 3–4
3.3.2 P3B Data Interface Connector, DB-25F ............................................................................... 3–5
3.3.3 P4A Audio Connector, DB-9F .............................................................................................. 3–6
3.3.4 G.703 Connectors ................................................................................................................. 3–6
3.3.4.1 P7 Balanced G.703 Interface Connector, DB-15F ............................................................ 3–6
3.3.4.1.1 T1/E1 RJ-48 Connection via P7 Balanced G.703 Interface Connector ................................ 3–7
3.3.4.2 J10A IDI, J11A DDO Connectors, 75Ω BNC ................................................................. 3–7
3.3.4.3 J10B Rx and J11B Tx Unbalanced G.703 Connectors, 75Ω BNC ................................... 3–8
3.4 Utility Connections ...................................................................................................................... 3–8
3.4.1 P6 Aux Serial Receptacle, USB Type ‘B’ ............................................................................ 3–8
3.4.2 J9 Ext Clk (CDM-600L) / Ext Ref (CDM-600), 50Ω BNC .................................................. 3–8
3.4.3 P4B Remote Control Interface Connector, DB-9M .............................................................. 3–9
3.4.4 P5A IDR Alarms Connector, DB-15F .................................................................................. 3–9
3.4.5 P5B Alarms Connector, DB-15M ....................................................................................... 3–10
3.4.6 J12 Ext Ref (CDM-600L) / Ext Freq Ref (CDM-600) ....................................................... 3–11
3.5 Power / Ground Connections ................................................................................................... 3–11
3.5.1 Alternating Current (AC) Power Connector (Standard)
..................................................... 3–11
3.5.2 Direct Current (DC) Power Connector (Optional, CDM-600L only) ................................. 3–12
3.5.3 Ground Connector ............................................................................................................... 3–12
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 ............................................................................................................... 5–3
5.1.3 Front Panel Vacuum Fluorescent Display (VFD) ................................................................. 5–3
5.2 Opening Screen ........................................................................................................................... 5–4
5.3 SELECT: (Main) Menu .............................................................................................................. 5–6
5.4 (SELECT:) CONFIGURATION ............................................................................................... 5–7
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5.4.1 CONFIG: ALL ...................................................................................................................... 5–8
5.4.2 CONFIG: MODE .................................................................................................................. 5–8
5.4.3 CONFIG: TX ........................................................................................................................ 5–9
5.4.3.1 CONFIG: Tx Æ TX-IF ..................................................................................................... 5–9
5.4.3.2 CONFIG: TX Æ POWER .............................................................................................. 5–10
5.4.3.3 CONFIG: TX Æ ENCODER .......................................................................................... 5–12
5.4.3.4 CONFIG: TX Æ MOD (Modulation) ............................................................................. 5–13
5.4.3.5 CONFIG: TX Æ DATA ................................................................................................. 5–13
5.4.3.6 CONFIG: TX Æ SCRAMBLER .................................................................................... 5–14
5.4.4 CONFIG: RX ...................................................................................................................... 5–14
5.4.4.1 CONFIG: RX Æ RX-IF .................................................................................................. 5–15
5.4.4.2 CONFIG: RX Æ DECODER ......................................................................................... 5–16
5.4.4.3 CONFIG: RX Æ DEMOD (Demodulation) ................................................................... 5–17
5.4.4.4 CONFIG: RX Æ DATA ................................................................................................. 5–17
5.4.4.5 CONFIG: RX Æ DESCRAMBLER ............................................................................... 5–18
5.4.4.6 CONFIG: RX Æ EbNo ................................................................................................... 5–18
5.4.5 CONFIG: CLOCKS ............................................................................................................ 5–19
5.4.5.1 CONFIG: CLOCKS Æ TX-CLOCK .............................................................................. 5–19
5.4.5
.2 CONFIG: CLOCKS Æ RX-BUFFER/CLOCK ............................................................. 5–20
5.4.5.3 CONFIG: CLOCKS Æ EXTERNAL BASEBAND CLOCK ........................................ 5–21
5.4.5.4 CONFIG: CLOCKS Æ EXT-FREQ-REF (CDM-600 ONLY) ...................................... 5–21
5.4.5.5 CONFIG: CLOCKS Æ INT-REF (CDM-600 ONLY) ................................................... 5–21
5.4.6 CONFIG: D&I (Drop & Insert) .......................................................................................... 5–22
5.4.6.1 CONFIG: D&I Æ LOOP ................................................................................................ 5–22
5.4.6.2 CONFIG: D&I Æ DRP-TYPE or INS-TYPE ................................................................ 5–22
5.4.6.3 CONFIG: D&I Æ DROP or INSERT CHAN/TS (Channel Timeslots) ......................... 5–23
5.4.7 CONFIG: FREQ-REF (CDM-600L ONLY) ...................................................................... 5–23
5.4.8 CONFIG: EDMAC ............................................................................................................. 5–23
5.4.9 CONFIG: MISC .................................................................................................................. 5–24
5.4.9.1 CONFIG: MISC Æ G.703-LINE-CODE (Ternary Code) .............................................. 5–24
5.4.9.2 CONFIG: MISC Æ IDR-ESC-TYPE ............................................................................. 5–24
5.4.9.3 CONFIG: MISC Æ ADPCM-AUDIO-VOLUME ......................................................... 5–25
5.4.9.4 CONFIG: MISC Æ HIGH-RATE-ESC .......................................................................... 5–25
5.4.9.5 CONFIG: Misc Æ WARM-UP (CDM-600 ONLY) ...................................................... 5–26
5.4.10 CONFIG: REMOTE (Remote Control) .............................................................................. 5–26
5.4.10.1 CONFIG: REMOTE Æ LOCAL or REMOTE Settings.............................................
5–27
5.4.11 CONFIG: MASK ................................................................................................................ 5–28
5.4.11.1 CONFIG: MASK Æ AIS ............................................................................................ 5–28
5.4.11.2 CONFIG: MASK Æ BUFFER (Buffer Slip) .............................................................. 5–28
5.4.11.3 CONFIG: MASK Æ Rx-IF ......................................................................................... 5–28
5.4.11.4 CONFIG: MASK Æ SAT-ALM (Satellite Alarms) ................................................... 5–29
5.4.11.5 CONFIG: MASK Æ TERR-ALM .............................................................................. 5–29
5.4.12 CONFIG: IMPEDANCE (CDM-600 ONLY) .................................................................... 5–30
5.4.13 CONFIG: STATISTICS ..................................................................................................... 5–30
5.5 SELECT: TEST ........................................................................................................................ 5–31
5.6 SELECT: INFORMATION ..................................................................................................... 5–33
5.6.1 INFO: ALL ......................................................................................................................... 5–33
5.6.2 INFO: ID ............................................................................................................................. 5–33
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5.6.3 INFO: MODE ..................................................................................................................... 5–33
5.6.4 INFO: TX ............................................................................................................................ 5–34
5.6.5 INFO: RX ............................................................................................................................ 5–35
5.6.6 INFO: CLOCKS ................................................................................................................. 5–35
5.6.7 INFO: EDMAC ................................................................................................................... 5–36
5.6.8 INFO: DROP (Drop Type) ................................................................................................. 5–36
5.6.9 INFO: INSERT (Insert Type) ............................................................................................. 5–36
5.6.10 INFO: REMOTE ................................................................................................................. 5–36
5.6.11 INFO: ALARM-MASK ...................................................................................................... 5–36
5.6.12 INFO-MISC ........................................................................................................................ 5–37
5.7 SELECT: MONITOR .............................................................................................................. 5–37
5.7.1 MONITOR: LIVE-ALARMS ............................................................................................. 5–37
5.7.2 MONITOR: STORED-EVENTS ........................................................................................ 5–39
5.7.3 MONITOR: STATISTICS .................................................................................................. 5–40
5.7.4 MONITOR: RX-PARAMS ................................................................................................. 5–41
5.7.5 MONITOR: AUPC-PARAM .............................................................................................. 5–41
5.7.6 MONITOR: LNB (CDM-600L ONLY) ............................................................................. 5–41
5.7.7 MONITOR: BUC (CDM-600L ONLY) ............................................................................. 5–41
5.8 SELECT: STORE/LOAD ........................................................................................................ 5–42
5.9 SELECT: UTILITIES .............................................................................................................. 5–42
5.9.1 UTILITIES: SET-RTC ....................................................................................................... 5–42
5.9.2 UTILITIES: DISPLAY-BRIGHTNESS ............................................................................. 5–43
5.9.3 UTILITIES: LAMP............................................................................................................. 5–43
5.9.4 UTILITIES: 1:1-MANUAL-SWITCH
............................................................................... 5–43
5.9.5 UTILITIES: EDIT-CIRCUIT-ID ........................................................................................ 5–43
5.10 SELECT: ODU (OUTDOOR UNIT) ...................................................................................... 5–44
5.11 SELECT: FAST ........................................................................................................................ 5–44
5.11.1 FAST: SET .......................................................................................................................... 5–44
5.11.2 FAST: VIEW ...................................................................................................................... 5–44
CHAPTER 6. FORWARD ERROR CORRECTION OPTIONS ............................................. 6–1
6.1 Introduction ................................................................................................................................. 6–1
6.2 Viterbi .......................................................................................................................................... 6–1
6.3 Sequential ..................................................................................................................................... 6–2
6.4 Reed-Solomon Outer Codec ....................................................................................................... 6–3
6.5 Trellis Coding (FAST Option) ................................................................................................... 6–4
6.6 Turbo Product Codec (Hardware Option) ............................................................................... 6–5
6.7 TPC and Low Density Parity Check (LDPC) coding .............................................................. 6–6
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6.7.1 Introduction ........................................................................................................................... 6–6
6.7.2 LDPC versus TPC ................................................................................................................. 6–7
6.7.3 End-to-End Processing Delay ............................................................................................... 6–8
6.8 Uncoded Operation (No FEC) ................................................................................................. 6–11
CHAPTER 7. AUTOMATIC UPLINK POWER CONTROL (AUPC) ..................................... 7–1
7.1 Introduction ................................................................................................................................. 7–1
7.2 Setting AUPC Parameters .......................................................................................................... 7–1
7.2.1 AUPC Target E
............................................................................................................... 7–2
b/N0
7.2.2 AUPC Max Range ................................................................................................................ 7–2
7.2.3 AUPC Alarm ......................................................................................................................... 7–2
7.2.4 Demod Unlock ...................................................................................................................... 7–3
7.3 Compensation Rate ..................................................................................................................... 7–3
7.4 Monitoring ................................................................................................................................... 7–3
CHAPTER 8. CLOCKING MODES AND DROP AND INSERT (D&I) ................................... 8–1
8.1 Introduction ................................................................................................................................. 8–1
8.2 Transmit Clocking ...................................................................................................................... 8–1
8.2.1 Internal Clock ........................................................................................................................ 8–1
8.2.2 Tx Terrestrial Clock .............................................................................................................. 8–2
8.2.3 Rx Loop-Timed, Rx=Tx ....................................................................................................... 8–2
8.2.4 Rx Loop-Timed, Rx<>Tx (Asymmetric Loop Timing) ........................................................ 8–2
8.2.5 External Clock ...................................................................................................................... 8–2
8.3 Receive Clocking ......................................................................................................................... 8–3
8.3.1 Buffer Disabled (Rx Satellite) ............................................................................................... 8–3
8.3.2 Buffer Enabled, Tx=Rx (Tx Terrestrial or External Clock) .................................................. 8–3
8.3.3 Buffer Enabled, Rx<>Tx (Tx Terrestrial or External Clock) ............................................... 8–3
8.4 X.21 Notes .................................................................................................................................... 8–3
8.5 Drop and Insert (D&I) with ESC and AUPC ........................................................................... 8–6
8.6 Frame Formats ............................................................................................................................ 8–7
8.7 Time Slot Selection ...................................................................................................................... 8–8
8.8 Drop and Insert (D&I) Clocking
............................................................................................... 8–9
8.9 Rx Buffer Clock = Insert (D&I only) ...................................................................................... 8–10
8.10 Single-Source Multiple Modems .............................................................................................. 8–10
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CHAPTER 9. EDMAC CHANNEL ......................................................................................... 9–1
9.1 Theory Of Operation .................................................................................................................. 9–1
9.2 M&C Connection ........................................................................................................................ 9–2
9.3 Setup Summary ........................................................................................................................... 9–3
CHAPTER 10. ESC++ ......................................................................................................... 10–1
10.1 Introduction ............................................................................................................................... 10–1
10.2 Overhead Details ....................................................................................................................... 10–1
10.3 Available Baud Rates ................................................................................................................ 10–2
10.4 Configuration ............................................................................................................................ 10–2
10.5 Effect on Eb/No performance .................................................................................................. 10–2
CHAPTER 11. OFFSET QPSK OPERATION ..................................................................... 11–1
CHAPTER 12. OPEN NETWORK OPERATIONS............................................................... 12–1
12.1 Introduction ............................................................................................................................... 12–1
12.2 IBS .............................................................................................................................................. 12–2
12.2.1 IBS Clock/data recovery and De-jitter ................................................................................ 12–2
12.2.2 IBS Framing ........................................................................................................................ 12–2
12.2.3 IBS Engineering Service Channel ....................................................................................... 12–2
12.2.4 IBS Scrambling ................................................................................................................... 12–2
12.3 Drop and Insert ......................................................................................................................... 12–3
12.3.1 D&I Primary Data Interfaces .............................................................................................. 12–3
12.3.2 D&I Framing ....................................................................................................................... 12–3
12.4 IDR ............................................................................................................................................. 12–4
12.4.
1 IDR Primary Data Interfaces ............................................................................................... 12–4
12.4.2 IDR Framing ....................................................................................................................... 12–4
12.4.3 IDR Engineering Service Channel ...................................................................................... 12–5
APPENDIX A. CABLE DRAWINGS ...................................................................................... A-1
A.1 Introduction ................................................................................................................................. A-1
A.1.1 RS-530 to RS-422/449 Data Cable ....................................................................................... A-2
A.1.2 RS-530 to V.35 Data Cable ................................................................................................... A-3
A.1.3 RS-530 to V.35 Data Cable ................................................................................................... A-4
A.1.4 RS-530 Conversion Cable ..................................................................................................... A-5
A.1.5 Switch Programming Cable .................................................................................................. A-6
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A.1.6 E1/T1 Adapter ....................................................................................................................... A-7
APPENDIX B. E
MEASUREMENT ................................................................................ B–1
B/N0
APPENDIX C. FAST ACTIVATION PROCEDURE .............................................................. C–1
C.1 Introduction ................................................................................................................................ C–1
C.2 Activation Procedure ................................................................................................................. C–1
C.2.1 Serial Number ...................................................................................................................... C–1
C.2.2 View currently installed features ......................................................................................... C–1
C.2.3 Enter Access Codes .............................................................................................................. C–2
APPENDIX D. SERIAL REMOTE CONTOL ......................................................................... D–1
D.1 Overview ..................................................................................................................................... D–1
D.2 RS-485 ......................................................................................................................................... D–1
D.3 RS-232 ......................................................................................................................................... D–2
D.4 Basic Protocol ............................................................................................................................. D–2
D.5 Packet Structure ......................................................................................................................... D–3
D.5.1 Start of Packet ...................................................................................................................... D–3
D.5.2 Target Address ..................................................................................................................... D–3
D.5.3 Address Delimiter ................................................................................................................ D–3
D.5.4 Instruction Code ................................................................................................................... D–4
D.5.5 Instruction Code Qualifier ................................................................................................... D–4
D.5.6 Optional Message Arguments .............................................................................................. D–5
D.5.7 End of Packet ....................................................................................................................... D–5
D.6 Remote Commands and Queries .............................................................................................. D–6
Section D.6 Notes: ....................................................................................................... D–7
D.6.1 Transm
it (Tx) Commands and Queries ................................................................................ D–8
D.6.2 Receive (Rx) Commands and Queries ............................................................................... D–15
D.6.3 Unit Commands and Queries ............................................................................................. D–20
D.6.4 Queries ............................................................................................................................... D–26
D.6.5 Bulk Commands ................................................................................................................. D–31
D.6.6 BUC Commands and Queries (CDM-600L ONLY) ......................................................... D–34
D.6.7 LNB Commands and Queries (CDM-600L ONLY) .......................................................... D–36
D.6.8 High-Stability Reference Option Commands and Queries (CDM-600 ONLY) ................ D–37
APPENDIX E. ODU (CSAT-5060, KST-2000A/B) OPERATION VIA THE CDM-600 .......... E–1
E.1 Introduction ................................................................................................................................ E–1
E.2 ODU Operations via Serial Remote Control ........................................................................... E–2
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E.2.1 Remote Control Address Setup ............................................................................................. E–2
E.3 ODU Operations via the CDM-600 Front Panel ..................................................................... E–3
E.3.1 ODU Operation – Front Panel Menu Tree (Basic) ............................................................... E–4
E.3.2 (SELECT:) (Main) Menu ...................................................................................................... E–5
E.3.3 (SELECT:) ODU – Product-specific Menu Operations ........................................................ E–5
E.3.3.1 (SELECT:) ODU (CSAT-5060 Transceiver) .................................................................... E–8
E.3.3.1.1 ODU: ENABLE Æ SYSTEM TYPE=STANDALONE ...................................................... E–8
E.3.3.1.2 ODU: ENABLE Æ SYSTEM TYPE=1:1 ............................................................................. E–8
1:1 MONITOR & CONTROL ÆODU#1 or ODU#2 .................................................. E–9
1:1 MONITOR & CONTROL ÆREDUNDANCY-BOX ........................................... E–9
E.3.3.1.3 COMMON ‘ODU SELECT’ SUBMENU .......................................................................... E–10
E.3.3.1.3.1 ODU SELECT: CONFIGURATION ................................................................ E–10
CONFIGURATION Æ TX-PARAMETERS ............................................................. E–10
CONFIGURATION Æ TX-PARAMETERS Æ SLOPE.................................................. E–11
CONFIGURATION Æ RX-PARAMETERS ............................................................. E–11
CONFIGURATION Æ RX-PARAMETERS Æ SLOPE ................................................. E–11
CONFIGURATION Æ LNA-PARAMETERS .......................................................... E–11
CONFIGURATION Æ MISCELLANEOUS ............................................................. E–12
E.3.3.1.3.2 ODU SELECT: MONITOR .............................................................................. E–13
MONITOR: TRANSMIT ........................................................................................... E–13
MONITOR: RECEIVE ............................................................................................... E–13
MONITOR: MISCELLANEOUS ............................................................................... E–13
MONITOR: POWER-SUPPLIES ............................................................................... E–13
E.3.3.1.3.3 ODU SELECT: ALARMS ................................................................................ E–14
ALARMS: CURRENT-ALARMS ............................................................................. E–14
ALARMS: STORED-ALARMS ................................................................................ E–14
E.3.3.
1.3.4 ODU SELECT: INFORMATION ..................................................................... E–15
INFORMATION: MODEL ........................................................................................ E–15
INFORMATION: TX ................................................................................................. E–15
INFORMATION: RX ................................................................................................. E–15
INFORMATION: MISC ............................................................................................. E–15
INFORMATION: LNA .............................................................................................. E–16
E.3.3.2 (SELECT:) ODU (KST-2000A/B Transceiver) .............................................................. E–16
ODU: STANDALONE Æ KST SELECT .................................................................. E–16
E.3.3.2.1 KST SELECT: CONFIGURATION .................................................................................... E–16
CONFIGURATION Æ TX-PARAM ......................................................................... E–17
CONFIGURATION Æ RX-PARAM ......................................................................... E–17
CONFIGURATION Æ RX-PARAM Æ BAND ........................................................ E–18
CONFIGURATION Æ MISCELLANEOUS ............................................................. E–18
E.3.3.2.2 KST SELECT: INFORMATION ......................................................................................... E–18
INFORMATION Æ MODEL ..................................................................................... E–19
INFORMATION Æ TX+RX-PARAM ...................................................................... E–19
INFORMATION Æ MISC ......................................................................................... E–19
INFORMATION Æ NUMBERS ............................................................................... E–19
E.3.3.2.3 KST SELECT: ALARMS ..................................................................................................... E–20
APPENDIX F. ODU (BUC, LNB) OPERATION VIA THE CDM-600L ................................... F–1
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F.1 Introduction ................................................................................................................................. F–1
F.2 ODU Operations via Serial Remote Control ............................................................................ F–1
F.2.1 Remote Control Address Setup ............................................................................................. F–1
F.3 ODU Operations via the CDM-600L Front Panel ................................................................... F–2
F.3.1 ODU Operation – Front Panel Menu Tree ............................................................................ F–3
F.3.2 Front Panel Menu Operations ............................................................................................... F–4
F.3.3 SELECT: (Main) Menu ........................................................................................................ F–4
F.3.4 (SELECT:) ODU (Outdoor Unit) ......................................................................................... F–5
F.3.4.1 ODU: BUC-FSK ............................................................................................................... F–5
F.3.4.2 ODU: BUC-CONFIG ....................................................................................................... F–6
F.3.4.3 ODU: BUC-LO ................................................................................................................. F–6
F.3.4.4 ODU: LNB-CONFIG ........................................................................................................ F–7
F.3.4.5 ODU: LNB-LO ................................................................................................................. F–7
F.3.5 (SELECT:) MONITOR ......................................................................................................... F–8
F.3.5.1 MONITOR: LNB .............................................................................................................. F–8
F.3.5.2 MONITOR: BUC .............................................................................................................. F–8
APPENDIX G. BUC FSK COMMUNICATIONS (CDM-600L) ............................................... G–1
APPENDIX H. DST SETUP (CDM-600L) ............................................................................. H–1
H.1 Overview ..................................................................................................................................... H–1
H.2 Initial Operation ......................................................................................................................... H–1
H.2.1 Prior to Turning On Power ................................................................................................... H–1
H.2.2 Initial Power Up – Modem Only .......................................................................................... H–2
H.3 LO, Mix, and Spectrum (Inversion) Settings ........................................................................... H–2
H.4 Applying Power To The
BUC ................................................................................................... H–3
H.5 Tx Side Setup .............................................................................................................................. H–4
H.6 Initial Operation of the Modem with the BUC and LNB ....................................................... H–5
H.6.1 RX Side Setup ...................................................................................................................... H–5
APPENDIX J. KT/11202-1 STEP ATTENUATOR KIT (CDM-600L) ..................................... J–1
J.1 Introduction ................................................................................................................................. J–1
J.2 Kit Installation ............................................................................................................................ J–1
J.3 Front Panel Operation ................................................................................................................ J–3
CONFIG: TX Æ POWER ............................................................................................ J–3
CONFIG: TX Æ POWER Æ MODE Æ MANUAL ................................................... J–3
CONFIG: TX Æ POWER Æ MODE Æ MANUAL-LOW ......................................... J–3
CONFIG: TX Æ POWER Æ MODE Æ AUPC .......................................................... J–4
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CONFIG: TX Æ POWER Æ MODE Æ AUPC-LOW ................................................ J–4
CONFIG: TX Æ POWER Æ MODE Æ AUPC Æ TARGET-EbNo/RANGE ........... J–4
CONFIG: TX Æ POWER Æ MODE Æ AUPC-LOW Æ TARGET-EbNo/RANGE . J–4
CONFIG: TX Æ POWER Æ MODE Æ AUPC/AUPC-LOW Æ ALARM/ACTION J–4
J.4 Remote Control Operation ......................................................................................................... J–5
Tables
Table 1-1. CDM-600/600L Rear Panel Connectors .................................................................................. 1–7
Table 3-1. Rear Panel External Connections ............................................................................................ 3–2
Table 6-1. Viterbi Decoding Summary ..................................................................................................... 6–2
Table 6-2. Sequential Decoding Summary ............................................................................................... 6–3
Table 6-3. Concatenated Reed-Solomon Coding Summary ..................................................................... 6–4
Table 6-4. 8-PSK/TCM Coding Summary ............................................................................................... 6–5
Table 6-5. Available TPC and LDPC Modes ........................................................................................... 6–8
Table 6-6. Turbo Product Coding Processing Delay Comparison ............................................................ 6–9
Table 6-7. Comparison of all Comtech EF Data TPC and LDPC Modes ............................................... 6–10
Table 6-8. TPC and LDPC Summary ..................................................................................................... 6–10
Figures
Figure 1-1. CDM-600/600L Open Network Satellite Modem (CDM-600L shown) ................................ 1–1
Figure 1-2. CDM-600/600L Open Network Satellite Modem Block Diagrams ....................................... 1–4
Figure 1-3. CDM-600L Dimensional Envelope ....................................................................................... 1–6
Figure 1-4. CDM-600 Dimensional Envelope .......................................................................................... 1–7
Figure 1-5. Front Panel View (CDM-600L shown) .................................................................................. 1–8
Figure 1-6. Rear Panel View ..................................................................................................................... 1–9
Figure 2-1. Optional Rear-Mounting Support Brackets Installation ......................................................... 2–3
Figure 3-1. CDM-600/600L Rear Panel ................................................................................................... 3–1
Figure 3-2. CN-0000268 DB-15M Æ RJ-48F Adapter for T1/E1 Operation........................................... 3–7
Figure 4-1. Flash Update via Internet ....................................................................................................... 4–1
Figure 5-1. CDM-600/600L – Front Panel View (CDM-600L shown) .................................................... 5–1
Figure 5-2. CDM-600/600L – Principle Menu Tree ................................................................................. 5–5
Figure 5-3. Loopback Modes .................................................................................................................. 5–32
Figure 6-1. Viterbi Decoding .................................................................................................................. 6–13
Figure 6-2. Sequential Decoding 64 kbps .............................................................................................. 6–14
Figure 6-3. Sequential Decoding 1024 kbps ........................................................................................... 6–15
Figure 6-4. Sequential Decoding 2048 kbps ........................................................................................... 6–16
Figure 6-5. Viterbi with concatenated Reed-Solomon Outer Code ........................................................ 6–17
Figure 6-6. Sequential with concatenated Reed-Solomon Outer Code ................................................... 6–18
Figure 6-7. 8-PSK/TCM Rate 2/3 with and without concatenated Reed-Solomon Outer Code ................ 6–19
Figure 6-8. Comtech EF Data Turbo Product Codec Rate 3/4 QPSK/OQPSK, 8-PSK and 16-QAM ............ 6–20
Figure 6-9. Comtech EF Data Turbo Product Codec Rate 7/8 QPSK/OQPSK, 8-PSK and 16-QAM ... 6–21
Figure 6-10. Rate 1/2 QPSK, Rate 0.95 QPSK and Rate 0.95 8-PSK ........................................................... 6–22
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Figure 6-11. Rate 21/44 BPSK and Rate 5/16 BPSK Turbo .................................................................... 6–23
Figure 6-12. 16-QAM Viterbi, Rate 3/4 and Rate 7/8 with 220,200 Reed-Solomon Outer Code ........... 6–24
Figure 6-13. Differential Encoding – No FEC, No Scrambling ............................................................... 6–25
Figure 6-14. LDPC, Rate 1/2, BPSK, (O)QPSK ...................................................................................... 6–26
Figure 6-15. LDPC, Rate 2/3, (O)QPSK / 8-PSK / 8-QAM .................................................................... 6–27
Figure 6-16. LDPC, Rate 3/4, (O)QPSK / 8-QAM ................................................................................. 6–28
Figure 6-17. LDPC, Rate 3/4, 8-PSK / 16-QAM ..................................................................................... 6–29
Figure 8-1. Tx Clock Modes ..................................................................................................................... 8–4
Figure 8-2. Rx Clock Modes ..................................................................................................................... 8–5
Figure 8-3. Supported T1 and E1 Framing formats .................................................................................. 8–7
Figure 8-4. Drop and Insert Clocking ....................................................................................................... 8–9
Figure 8-5. Single-Source Multiple Modems (Looming) ....................................................................... 8–10
Figure 8-6. Single-Source Multiple Modems (Daisy-chain) ................................................................... 8–10
Figure A-1. DCE Conversion Cable: RS-530 to RS-422/449 (CA/WR0049) ......................................... A-2
Figure A-2. DCE Conversion Cable: RS-530 to V.35 (CA/WR0059) .................................................... A-3
Figure A-3. DCE Conversion Cable: RS-530 (CA/WR9718-1) .............................................................. A-4
Figure A-4. DCE Conversion Cable: RS-530 to V.35 ............................................................................. A-5
Figure A-5. Switch Programming Cable .................................................................................................. A-6
Figure A-6. E1/T1 DB-15 Æ RJ-48 Adapter (CN-0000268) .................................................................. A-7
Figure E-1. CDM-600 Front Panel View .................................................................................................. E–3
Figure E-2. CDM-600 ODU Operation Principal Menu Tree .................................................................. E–4
Figure E-3. (SELECT:) ODU Æ CSAT-5060 Transceiver Menu Tree ................................................... E–6
Figure E-4. (SELECT:) ODU Æ KST-2000A/B Transceiver Menu Tree ................................................ E–7
Figure F-1. CDM-600L Front Panel View ................................................................................................ F–2
Figure F-2. CDM-600L ODU Operation Principal Menu Tree ................................................................ F–3
Figure J-1. KT/11202-1 External 20 dB Step Attenuator Kit ................................................................... J–2
xiv
PREFACE
About this Manual
This manual provides installation and operation information for the Comtech EF Data CDM-600 and
CDM-600L Open Network Satellite Modems. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of the
CDM-600/600L.
These two modems are essentially identical in their operation:
• The CDM-600 operates in the 70/140MHz IF band and includes support for externally
connected Comtech EF Data Transceivers (CSAT-5060, KST-2000A/B)
• The CDM-600L operates at L-Band and includes support for externally connected Block
Upconverters (BUCs) and Low-Noise Block Downcoverters (LNBs).
About the Revision Level and Information Provided in this Manual
This revision incorporates the CDM-600 Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM600.IOM Revision 7). It is intended replace both CEFD MN/CDM600.IOM
and the previous version of this document, CEFD P/N MN/CDM600L.IOM (Revision 2) in their
entirety. All content from both documents has been integrated and reorganized to conform to
current Comtech EF Data Technical Publications Standards and Practices.
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
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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.
Cautions and Warnings
CAUTION indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury. CAUTION may also be used to
CAUTION
WARNING
IMPORTANT
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.
Indicates information critical for proper equipment function.
Recommended Standard Designations
Recommended Standard (RS) is equivalent to the new designation of the Electronic Industries
Association (EIA). While either designation is acceptable, Comtech EF Data has elected to
continue use of the old (RS) designation in its documentation.
Electrical Safety
The user should make special note of the following information and instructions:
IMPORTANT
The CDM-600/600L Satellite Modem has been sh own to com ply with t he follow ing safety s tandard:
• EN 60950: Safety of Information Technology Equipment, including Electrical Business
Machines.
The equipment is rated for operation over the range 100 - 240 VAC.
The CDM-600 has a maximum power consumption of 40 Watts and draws a maximum of 400mA.
The CDM-600L has a maximum power consumption of 290 Watts including maximum BUC
power supply load, and draws a maximum of 2.9 A. The CDM-600L DC-powered version is
rated for operation over the range of 38 to 60 VDC input.
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Fuses
The AC-powered CDM-600/600L is fitted with two fuses – one each for line and neutral
connections. These are contained within the body of the IEC power inlet connector, behind a small
plastic flap.
For the CDM-600:
• For 115 VAC operation, use T1.25A, slow-blow 20mm fuses.
• For 230 VAC operation, use T0.75A, slow-blow 20mm fuses.
For the CDM-600L:
• For 115 and 230 VAC operation, use T5.0A, slow-blow 20 mm fuses (P/N FS/5ASB-IEC).
The DC-powered CDM-600L is fitted with two fuses – one each for positive and negative
connections. These are contained within the body of the power inlet, behind a small plastic flap.
• For 38 to 60 VDC operation if the modem has no BUC power supply, use T3.15A,
slow-blow 20mm fuses
• For 38 to 60 VDC operation if the modem is fitted with internal BUC power supply,
use T8.0A, slow-blow 20mm fuses.
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
CAUTION
THE CORRECT TYPE AND RATING.
Environmental
The CDM-600/600L 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% RH, altitudes (non-pressurized) greater than
2000 meters, excessive dust or vibration, flammable gases, 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.
Installation
CDM-600/600L AC Modem Installation: The installation and connection to the line supply
must be made in compliance to local or national wiring codes and regulations.
The CDM-600/600L is designed for connection to a power system that has separate ground, line
and neutral conductors. The equipment is not designed for connection to a power system that has
no direct connection to ground.
The CDM-600/600L 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
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CDM-600/600L Open Network Satellite Modem Revision 3
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acceptable connector ratings include VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO,
DEMKO, BS1636A, BSI, SETI, IMQ, KEMA-KEUR and SEV.
International Symbols
Symbol Definition Symbol Definition
~
CDM-600L DC Modem Installation: The DC input CDM-600L is connected to a nominal 48
VDC prime power source. The DC input is isolated from the chassis and from the DC output to
the BUC if equipped with internal BUC power supply. The chassis may be connected to a local
system ground using a separate wire to the ground stud on the back of the chassis. Since the DC
input is isolated, either the positive or the negative side of the DC input may be common with
local ground. Labeling on the back of the chassis indicates the positive and negative terminals of
the input power socket.
The modem is supplied with a 2-wire power cable (CEFD part number CA/WR10327-1) with one
end terminated with a connector that mates with the modem input power socket. Positive DC
input is on the red wire, while negative DC input is on the black wire. The DC input connector is
Molex PN 03-12-1026 with Molex PN 08-12-1222 pins.
Alternating Current
Fuse
Protective Earth
Chassis Ground
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.
EMC (Electromagnetic Compatibility)
In accordance with European Directive 89/336/EEC, the CDM-600/600L 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-600/600L 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
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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,
IMPORTANT
• Connections to the transmit and receive IF ports (Type ‘BNC’ female connectors for the
• All 'D' type connectors attached to the rear panel must have back-shells that provide
• The equipment must be operated with its cover on at all times. If it becomes necessary to
observe the following instructions:
CDM-600, Type ‘N’ or ‘F’ female connectors for the CDM-600L) should be made using
a good quality coaxial cable; e.g., RG58/U (50Ω) or RG59/U (75Ω).
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.
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.
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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.
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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CDM-600/600L Open Network Satellite Modem Revision 3
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Customer Support
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
replacement:
• 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 th at 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 “Service” 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.
For information regarding this product’s warranty policy, refer to the Warranty Policy, p.xix.
www.comtechefdata.com/support.asp:
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Notes:
xxii
Chapter 1. INTRODUCTION
1.1 Overview
The CDM-600/600L Open Network Satellite Modem is intended for both Intelsat and closed
network applications. Apart from the IF frequency band, the two modems are essentially
identical: The CDM-600L (Figure 1-1) operates on the L-Band freq
the 70/140 MHz IF version of the same modem.
Figure 1-1. CDM-600/600L Open Network Satellite Modem (CDM-600L shown)
1.1.1 Standard Features
uency, while the CDM-600 is
The CDM-600/600L provides a wealth of standard features which go far beyond the basic requirements
of the Intelsat specifications:
• Low rate variable data rates – 2.4 kbps to 5.0 Mbps
• Mid-rate variable data rates – 2.4 kbps to 10.0 Mbps
• High-rate variable data rates – 2.4 kbps to 20.0 Mbps
• Selectable 50Ω / 75Ω IF port impedance (CDM-600)
• Asymmetric Loop Timing
• Modulation Types – BPSK, QPSK, and OQPSK
• Embedded Distant-end Monitor and Control (EDMAC) (see Note)
• Automatic Uplink Power Control (AUPC)
• Firmware – Flash Upgrading
• 1:1 and 1:10 redundancy switch compatibility
1–1
CDM-600/600L Open Network Satellite Modem Revision 3
Introduction MN/CDM600L.IOM
EDMAC Note: In EDMAC mode, an additional 5% overhead is combined with the traffic
data (1.5% in Turbo BPSK modes, Turbo Rate 1/2 QPSK/OQPSK, and all data rates greater
than 2 Mbps), which permits Monitor & Control (M&C) information to be added
transparently to the user, allowing access to the distant-end modem. This mode does not
require any additional cabling at either the local or distant-end modems; access to EDMAC is
via the standard M&C control port.
Full M&C is possible and, importantly, the on/off status of the carrier at the distant-end carrier
can be controlled. In addition, as of Firmware Ver. 1.2.0 (CDM-600L) or 1.5.0 (CDM-600) and
higher, the proprietary D&I++ framing mode is available. This combines Drop & Insert (D&I)
operation with a similar EDMAC link and a 2.2% overhead.
CDM-600/600L Common Features
• Compliance with IESS-308 / -309/ -310 / -315 specifications, with significant features
added in Closed Network modes.
• Variable data rates from 2.4 kbps to 20 Mbps, in BPSK, QPSK, Offset QPSK, 8-PSK,
8-QAM, and 16-QAM modes are offered.
• Viterbi, Sequential, concatenated Reed-Solomon (RS), Trellis Coded Modulation
(TCM), Turbo Product Coding (TPC), and Low Density Parity Check Coding (LDPC)
are provided as Forward Error Correction (FEC) options.
• A full range of interface types is built-in and available on demand – no plug-in cards are
required. This includes all G.703 types and D&I (both Open and Closed Network) operation.
• The CDM-600/600L front panel features a Video Fluorescent Display (VFD) and keypad
for local configuration and control; additionally, the unit may be remote-controlled.
CDM-600L Features
• IF frequency range covers 950 to 1950 MHz, and supports external Block Upconverters
(BUCs) and Low-Noise Block Downconverters (LNBs).
• A programmable 13, 18, or 24V LNB power supply at the Rx IF connector center conductor,
and optionally includes a 24 or 48V BUC power supply at the Tx IF connector center
conductor.
• A low phase noise 10 MHz reference output is available at both the Tx and Rx IF
connectors for use by the BUC or LNB.
• The CDM-600L is compact – 1RU high and 18 inches deep, and consumes 57 watts
(typical), excluding BUC and LNB power supply loads
.
CDM-600 Features
• IF frequency range simultaneously covers 52-88 MHz and 104-176 MHz, and supports
external Comtech EF Data RF Transceivers (CSAT-5060, KST-2000A/B).
Note: Units manufactured after February 2005 cover 50-90 MHz and 100-180 MHz. The
opening screen for these enhanced operation units displays CDM-600(E)– meaning
Extended IF range.
• The CDM-600 is compact – 1RU high and 13.1 inches deep, and consumes only 25
Watts (typical).
Refer to Sect. 1.3 for in-depth product information and Sect. 1.5 for the CDM-600/600L Summary of
Specifications.
1–2
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