Comtech EF Data CDM-625 User manual

Part Number MN-CDM625 Revision 13
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.
CDM-
625
Advanced Satellite Modem (18 kbps – 25 Mbps)
Installation and Operation Manual
For Firmware Version 2.3.1 or higher

ER-CDM625-EA13 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! PLM CO C-0027959 Page 1of 2
Errata A
Comtech EF Data Documentation Update
Subject:ReviseAppendixD,QDIremotecommand
OriginalManualPart
Number/Rev:
MN‐CDM625Rev13
ErrataNumber/PLM
DocumentID:
ER‐CDM625‐EA13
PLMCONumber:C‐0027959
Comments:PageD‐45,QDIcommandchangesfollow.

Thisinformationwillbeaddedtothenextformalrevisionofthe
manual.


ER-CDM625-EA13 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! PLM CO C-0027959 Page 2of 2
Quad Drop &
Insert
QDI= 73 bytes Command or Query.
Quad Drop & Insert Commands (E1 CCS Only)
QDI=pccddddddddddddddddddddddddddddddddCCssssssssssssssssssssssssssssssssmrrr, where:
p = Port number 1 thru 4
cc = Number of Drop Channels, 0-32.
Used to decide Port p’s TX Tributary Rate if Interface Type is Quad Drop & Insert (TFM=8).
d = 32 bytes defining Timeslot locations (or channels)
CC = Number of Insert Channels, 0-32.
Used to decide Port p’s RX Tributary Rate if Interface Type is Quad Drop & Insert (RFM=8).
s = 32 bytes defining Timeslot locations (or channels)
Timeslot definition:
0 = Unused
1-9 for timeslots 1–9,
A=10, B=11, C=12, D=13…V=31
z=timeslot zero
m = E1 Clock Sync/Async mode (Read/Write on Port 1 string, Read-Only on other Ports strings). This is
NOT a per port setting, but a global setting. 0=E1's are asynchronous, 1=E1's are synchronous.
r = reserved (set to value 0)
Example 1:
131123456789ABCDEFGHIJKLMNOPQRSTUV031123456789ABCDEFGHIJKLMNOPQRSTUV00000
Port 1’s Drop channels 1–31 using timeslots 1–31. Same for Insert. E1 clock mode is synchronous (Read-
Write using Port 1 string).
Example 2:
30412340000000000000000000000000000204123400000000000000000000000000002001000
Port 3’s Drop channels 1–4 using timeslots 1–4. Same for Insert. E1 clock mode is asynchronous (Read-
only parameter in Port 3 string).
Note: This command is a bit forgiving in the sense that the modem accepts the command even though the
interface type is other than Quad Drop & Insert. This is intentional for use with the CRS-300 switch for 1:N
redundancy.
QDI=
QDI?
QDI*
QDI#
QDI?p
QDI?pn
(where n = 0 to 9
returns the QDI
portion of 1 of 10
stored
configurations for
a single port p)
QDI=pccddddddddd
dddddddddddddddd
dddddddCCssssssss
ssssssssssssssssss
ssssssmrrr
(Returns current
Quad D&I
configuration of a
single port p)

Copyright © 2013 Comtech EF Data. Allrights reserved. Printed in the USA.
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: [phone]
CDM-625
Advanced Satellite Modem (18 kbps – 25 Mbps)
Installation and Operation Manual
For Firmware Version 2.3.1 or higher
Part Number MN-CDM625
Revision 13

ii
This page is intentionally blank.

iii
TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................III
TABLES ................................................................................................................................XXII
FIGURES..............................................................................................................................XXIII
PREFACE........................................................................................................................... XXVII
About this Manual ....................................................................................................................... xxvii
Reporting Comments or Suggestions Concerning this Manual ............................................................................xxvii
Conventions and References ........................................................................................................ xxvii
Patents and Trademarks ........................................................................................................................................... xxvii
Warnings, Cautions, and Notes ................................................................................................................................ xxvii
Recommended Standard Designations .................................................................................................................. xxviii
Metric Conversion..................................................................................................................................................... xxviii
Safety and Compliance.................................................................................................................xxviii
Electrical Safety and Compliance ............................................................................................................................ xxviii
Grounding .................................................................................................................................................................. xxviii
Electrical Installation ................................................................................................................................................... xxix
Battery ..................................................................................................................................................................... xxix
Fuses ..................................................................................................................................................................... xxix
Operating Environment...............................................................................................................................................xxx
European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive
(1999/5/EC) and EN 301 489-1...................................................................................................................................xxx
European Union Electromagnetic Compatibility (EMC) Directive (2004/108/EC)...........................................xxx
European Union Low Voltage Directive (LVD) (2006/95/EC) ............................................................................xxxi
European Union RoHS Directive (2002/95/EC).................................................................................................. xxxii
E uropean Union Telecommunications Terminal E quipment Directive (91/263/E E C )..........xxxii
CE Mark ............................................................................................................................................................... xxxii
Warranty Policy ............................................................................................................................xxxii
Limitations of Warranty............................................................................................................................................. xxxii
Exclusive Remedies ................................................................................................................................................... xxxiii
Getting Help ................................................................................................................................xxxiv
Contacting Comtech EF Data ................................................................................................................................... xxxiv
Returning a Product for Upgrade or Repair ............................................................................................................xxxv
CHAPTER 1. INTRODUCTION............................................................................................1–1
1.1 Overview............................................................................................................................1–1

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1.2 Functional Description ........................................................................................................1–2
1.3 Features .............................................................................................................................1–3
1.3.1 Physical Description..................................................................................................................................1–3
1.3.2 Modem Compatibility ..............................................................................................................................1–3
1.3.3 Ethernet/IP Interface Compatibility........................................................................................................1–4
1.3.4 Verification................................................................................................................................................. 1–4
1.3.5 Updating Modem Firmware....................................................................................................................1–4
1.3.6 Standard Data Interfaces ......................................................................................................................... 1–5
1.3.7 Optional Hardware and Accessories....................................................................................................... 1–5
1.3.8 Fully Accessible System Topology (FAST)...............................................................................................1–7
1.3.9 Supporting Hardware and Software.....................................................................................................1–10
1.3.10 Physical Features.....................................................................................................................................1–11
1.3.10.1 Dimensional Envelope .......................................................................................................................1–11
1.3.10.2 Front Panel ..........................................................................................................................................1–12
1.3.10.3 Rear Panel ...........................................................................................................................................1–13
1.4 Summary of Specifications ................................................................................................1–14
1.4.1 Modulator................................................................................................................................................1–14
1.4.2 Demodulator ...........................................................................................................................................1–16
1.4.3 Data Interfaces ........................................................................................................................................1–21
1.4.4 Automatic Uplink Power Control (AUPC).............................................................................................1–22
1.4.5 DoubleTalk® Carrier- in-Carrier®(CnC)...................................................................................................1–22
1.4.6 Framing Summary...................................................................................................................................1–23
1.4.7 Data Rate Ranges ....................................................................................................................................1–24
1.4.8 VersaFEC Adaptive Coding and Modulation (ACM)............................................................................1–29
1.4.9 Miscellaneous..........................................................................................................................................1–30
1.4.10 Approvals .................................................................................................................................................1–30
CHAPTER 2. INSTALLATION.............................................................................................2–1
2.1 Unpacking and Inspecting the Shipment ..............................................................................2–1
2.2 Installing Into a Rack Enclosure ...........................................................................................2–2
2.2.1 Installing the Optional Rear-Mounting Support Brackets Kits.............................................................2–4
2.3 Configuring the CDM-625 ....................................................................................................2–5
2.4 Selecting the Internal IF Loop ..............................................................................................2–5
2.5 Connecting the External Cables ...........................................................................................2–5
CHAPTER 3. REAR PANEL CONNECTORS AND PINOUTS ............................................3–1
3.1 CDM-625 Rear Panel Overview............................................................................................3–1
3.2 CDM-625 Cable Connections ...............................................................................................3–2
3.2.1 IF Connection Group.................................................................................................................................3–3

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3.2.1.1 Rx IF Connectors................................................................................................................................... 3–3
3.2.1.2 Tx IF Connectors ...................................................................................................................................3–3
3.2.2 Terrestrial Data Connection Group.........................................................................................................3–4
3.2.2.1 Data Interface (DB-25F) .......................................................................................................................3–4
3.2.2.1.1 HSSI Operation via the CIC-60 Interface Adapter Module..........................................3–5
3.2.2.2 G.703 Connectors.................................................................................................................................3–7
3.2.2.2.1 Balanced G.703 (DB-9F) ..............................................................................................3–7
3.2.2.2.2 Aux G.703 (DB-9F).......................................................................................................3–7
3.2.2.2.3 Quad E1 Operation via the Balanced G.703 / Aux G.703 Connectors ........................ 3–8
3.2.2.2.3.1 CA-0000163 Adapter Cable.................................................................................. 3–8
3.2.2.2.3.2 CA-0000164 Adapter Cable.................................................................................. 3–9
3.2.2.2.3.3 KT-0000122/KT-0020570 Quad E1 Balanced/Unbalanced Adapter Cable Kits.... 3–10
3.2.2.2.4 Unbal G.703 / ASI – Out (IDO), In (DDI) .................................................................... 3–11
3.2.2.2.5 G.703 IDI (Insert Data In), DDO (Drop Data Out)...................................................... 3–11
3.2.2.3 Quad 10/100 Ethernet (RJ-45)..........................................................................................................3–11
3.2.2.4 IDR Data / Alarms / Audio (HD-44F).................................................................................................3–11
3.2.2.5 ESC (DB-9F)..........................................................................................................................................3–12
3.2.3 Utility Connections Group......................................................................................................................3–12
3.2.3.1 Remote Control (DB-9M) ..................................................................................................................3–12
3.2.3.2 Alarms (DB-15M)................................................................................................................................3–13
3.2.3.3 PMSI Connector, DB-9F .....................................................................................................................3–13
3.2.3.4 1:1 Control (DB-9F).............................................................................................................................3–14
3.2.3.5 Ext Ref In/Out .....................................................................................................................................3–14
3.3 CDM-625 Ground and Power Connections .........................................................................3–15
3.3.1 Chassis Ground Interface .......................................................................................................................3–15
3.3.2 Standard 100V/240V Alternating Current (AC) Power Interface ......................................................3–16
3.3.2.1 AC Operation – CDM-625 Accessories.............................................................................................3–16
3.3.2.2 AC Operation – Applying Power .......................................................................................................3–17
3.3.2.3 AC Operation – Replacing Fuses .......................................................................................................3–17
3.3.3 Optional 48V Direct Current (DC) Power Interface.............................................................................3–18
3.3.3.1 Optional DC Operation – CDM-625 Accessories.............................................................................3–19
3.3.3.2 Optional DC Operation – Applying Power.......................................................................................3–19
3.3.3.3 Optional DC Operation – Replacing Fuses.......................................................................................3–20
CHAPTER 4. UPDATING FIRMWARE................................................................................4–1
4.1 Updating Firmware via Internet...........................................................................................4–1
4.2 About Firmware Files, Naming, Versions, and Archive Formats ............................................4–1
4.3 Firmware Update Procedure ...............................................................................................4–3
4.3.1 Getting Started: Preparing for the Firmware Download......................................................................4–3
4.3.2 Downloading and Extracting the Firmware Update .............................................................................4–5
4.3.3 Executing the Ethernet FTP Upload Procedure.....................................................................................4–7

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CHAPTER 5. FRONT PANEL OPERATION........................................................................5–1
5.1 Introduction .......................................................................................................................5–1
5.1.1 LED Indicators............................................................................................................................................ 5–2
5.1.2 Keypad........................................................................................................................................................ 5–3
5.1.3 Vacuum Fluorescent Display (VFD).........................................................................................................5–4
5.1.3.1 Screen Saver.......................................................................................................................................... 5–4
5.1.3.2 Opening Screen ....................................................................................................................................5–4
5.1.3.2.1 Feature Availability/Operation Indicators via the Opening Screen............................ 5–4
5.2 SELECT: (Main) Menu ..........................................................................................................5–6
5.2.1 SELECT: Configuration Menus .................................................................................................................5–8
5.2.1.1 CONFIG: All............................................................................................................................................5–9
5.2.1.2 CONFIG: Mode...................................................................................................................................5–10
5.2.1.3 CONFIG: Tx ..........................................................................................................................................5–12
5.2.1.3.1 CONFIG: Tx Tx-IF................................................................................................... 5–12
5.2.1.3.2 CONFIG: Tx Freq (Frequency)...............................................................................5–13
5.2.1.3.3 CONFIG: Tx Power................................................................................................ 5–13
5.2.1.3.3.1 CONFIG: Tx Power Mode AUPC ..........................................................5–14
5.2.1.3.4 CONFIG: Tx FEC .................................................................................................... 5–15
5.2.1.3.5 CONFIG: Tx Mod (Modulation) ............................................................................ 5–17
5.2.1.3.6 CONFIG: Tx Data................................................................................................... 5–18
5.2.1.3.7 CONFIG: Tx Symb (IP-ACM Mode Only) ...............................................................5–19
5.2.1.3.8 CONFIG: Tx Scrambler.......................................................................................... 5–20
5.2.1.4 CONFIG: Rx..........................................................................................................................................5–21
5.2.1.4.1 CONFIG: Rx Rx-IF ..................................................................................................5–21
5.2.1.4.2 CONFIG: Rx Freq (Frequency) ............................................................................... 5–22
5.2.1.4.3 CONFIG: Rx FEC .................................................................................................... 5–22
5.2.1.4.4 CONFIG: Rx Demod (Demodulation)....................................................................5–24
5.2.1.4.5 CONFIG: Rx Data .................................................................................................. 5–25
5.2.1.4.6 CONFIG: Rx Symb (IP-ACM Mode Only)............................................................... 5–26
5.2.1.4.7 CONFIG: Rx Descram (Descrambler) ....................................................................5–27
5.2.1.4.8 CONFIG: Rx Eq (Equalizer).................................................................................... 5–27
5.2.1.4.9 CONFIG: Rx EbNo ................................................................................................. 5–28
5.2.1.5 CONFIG: Clocks ...................................................................................................................................5–29
5.2.1.5.1 CONFIG: Clocks Tx Clock.......................................................................................5–29
5.2.1.5.2 CONFIG: Clocks Rx Buffer/Clock........................................................................... 5–30
5.2.1.5.3 CONFIG: Clocks Clk-Ext (G.703 Clock Extension).................................................. 5–31
5.2.1.5.4 CONFIG: Clocks Freq-Ref...................................................................................... 5–32
5.2.1.5.5 CONFIG: Clocks Int-Ref-Adjust ............................................................................. 5–32
5.2.1.6 CONFIG: D&I (Drop & Insert) ............................................................................................................5–33
5.2.1.6.1 CONFIG: D&I Loop................................................................................................5–33
5.2.1.6.2 CONFIG: D&I Drp-Type or Ins-Type...................................................................... 5–33
5.2.1.6.3 CONFIG: D&I (Drop or Insert) Chan/TS (Channel Timeslots) ............................... 5–34
5.2.1.6.4 CONFIG: Quad D&I (QDI) .......................................................................................... 5–34
5.2.1.7 CONFIG: ACM (Adaptive Coding and Modulation) (IP-ACM Mode Only) ...................................5–36
5.2.1.7.1 CONFIG: ACM Min/Max-ModCod ........................................................................5–36
5.2.1.7.2 CONFIG: ACM Unlock-Action ............................................................................... 5–36

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5.2.1.7.3 CONFIG: ACM Target-EbNo-Margin ..................................................................... 5–37
5.2.1.8 CONFIG: CnC .......................................................................................................................................5–37
5.2.1.8.1 CONFIG: CnC Mode .............................................................................................. 5–37
5.2.1.8.2 CONFIG: CnC CONFIG: CnC Freq-Offset ..........................................................5–38
5.2.1.8.3 CONFIG: CnC Search-Delay .................................................................................. 5–38
5.2.1.8.4 CONFIG: CnC PMSI-Control .................................................................................. 5–39
5.2.1.9 CONFIG: EDMAC.................................................................................................................................5–40
5.2.1.10 CONFIG: Misc ......................................................................................................................................5–41
5.2.1.10.1 CONFIG: Misc G.703-LineCode (Ternary Code).................................................. 5–41
5.2.1.10.2 CONFIG: Misc IDR-ESC........................................................................................ 5–41
5.2.1.10.3 CONFIG: Misc HSSI ............................................................................................. 5–42
5.2.1.10.4 CONFIG: Misc RTS .............................................................................................. 5–42
5.2.1.10.5 CONFIG: Misc Audio-Vol (ADPCM Audio Volumes) ........................................... 5–42
5.2.1.10.6 CONFIG: Misc HiRateESC....................................................................................5–43
5.2.1.10.7 CONFIG: Misc Warm-Up.....................................................................................5–44
5.2.1.10.8 CONFIG: Misc Stats (Statistics)........................................................................... 5–44
5.2.1.10.9 CONFIG: Misc MEO ............................................................................................5–45
5.2.1.10.9.1 CONFIG: Misc MEO Antenna Handover .................................................. 5–46
5.2.1.11 CONFIG: Mask.....................................................................................................................................5–46
5.2.1.11.1 CONFIG: Mask AIS .............................................................................................. 5–46
5.2.1.11.2 CONFIG: Mask Buffer or Ref............................................................................... 5–47
5.2.1.11.3 CONFIG: Mask RxIF............................................................................................. 5–47
5.2.1.11.4 CONFIG: Mask TxClk...........................................................................................5–47
5.2.1.11.5 CONFIG: Mask TxSat (Satellite Tx Alarms) ......................................................... 5–48
5.2.1.11.6 CONFIG: Mask RxSat (Satellite Rx Alarms).........................................................5–48
5.2.1.11.7 CONFIG: Mask Terr............................................................................................. 5–48
5.2.1.11.8 CONFIG: Mask ROp (RAN Optimization) (FUTURE)............................................ 5–49
5.2.1.11.9 CONFIG: Mask BUC ............................................................................................ 5–49
5.2.1.11.10 CONFIG: Mask LNB........................................................................................... 5–49
5.2.1.11.11 CONFIG: Mask CEX (G.703 Clock Extension mask)........................................... 5–49
5.2.1.12 CONFIG: Remote (Remote Control).................................................................................................5–50
5.2.1.12.1 CONFIG: Remote Local or Serial remote settings .............................................. 5–50
5.2.1.13 CONFIG: IP ...........................................................................................................................................5–50
5.2.1.13.1 CONFIG: IP Addresses ........................................................................................ 5–50
5.2.1.13.2 CONFIG: IP SNMP ............................................................................................... 5–51
5.2.1.13.3 CONFIG: IP Setup................................................................................................5–53
5.2.1.13.4 CONFIG: IP ANT (Advanced Network Timing) ....................................................5–64
5.2.1.13.4.1 CONFIG: IP ANT SNTP (Simple Network Time Protocol) ........................ 5–64
5.2.1.13.4.2 CONFIG: IP ANT PTP (Precision Time Protocol)...................................... 5–65
5.2.1.13.5 CONFIG: IP AccessList..........................................................................................5–65
5.2.1.13.6 CONFIG: IP PktP-Enable ..................................................................................... 5–66
5.2.2 SELECT: Test Menus................................................................................................................................5–67
5.2.2.1 SELECT: TEST Mode.......................................................................................................................5–67
5.2.2.2 SELECT: TEST BERT ........................................................................................................................5–69
5.2.2.2.1 SELECT: TEST BERT Config ...............................................................................5–69
5.2.2.2.2 SELECT: TEST BERT Monitor ............................................................................5–69
5.2.2.3 SELECT: TEST CnC-APC-Monitor ..................................................................................................5–69
5.2.2.4 SELECT: TEST Uncorrected-BER ...................................................................................................5–70

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5.2.3 SELECT: Monitor Menus.........................................................................................................................5–71
5.2.3.1 Monitor: Live-Alarms .........................................................................................................................5–71
5.2.3.2 Monitor: Stored Events .....................................................................................................................5–72
5.2.3.3 Monitor: ACM.....................................................................................................................................5–73
5.2.3.4 Monitor: Statistics ..............................................................................................................................5–73
5.2.3.5 Monitor: Rx Parameters ....................................................................................................................5–75
5.2.3.6 Monitor: AUPC-Parameters ..............................................................................................................5–75
5.2.3.7 Monitor: CnC-Parameters .................................................................................................................5–75
5.2.3.8 Monitor: IP Statistics ..........................................................................................................................5–76
5.2.4 SELECT: Info (Information) Menus........................................................................................................5–76
5.2.4.1 Info: All.................................................................................................................................................5–76
5.2.4.2 Info: ID .................................................................................................................................................5–76
5.2.4.3 Info: Mode...........................................................................................................................................5–77
5.2.4.4 Info: Tx .................................................................................................................................................5–77
5.2.4.5 Info: Rx.................................................................................................................................................5–77
5.2.4.6 Info: Clocks ..........................................................................................................................................5–78
5.2.4.7 Info: EDMAC........................................................................................................................................5–78
5.2.4.8 Info: Drop ............................................................................................................................................5–78
5.2.4.9 Info: Insert ...........................................................................................................................................5–79
5.2.4.10 Info: Remote .......................................................................................................................................5–79
5.2.4.11 Info: Alarms Mask...............................................................................................................................5–79
5.2.4.12 Info: Misc .............................................................................................................................................5–79
5.2.5 SELECT: Store/Ld (Store/Load) Menus .................................................................................................5–80
5.2.6 SELECT: Utility Menus.............................................................................................................................5–81
5.2.6.1 Utilities: Set-RTC .................................................................................................................................5–81
5.2.6.2 Utilities: Display-Bright.......................................................................................................................5–81
5.2.6.3 Utilities: CarrID....................................................................................................................................5–81
5.2.6.4 Utilities: LED ........................................................................................................................................5–82
5.2.6.5 Utilities: Redundancy .........................................................................................................................5–82
5.2.6.5.1 Utilities: Redundancy Traffic-IP-Addr/Range ....................................................... 5–82
5.2.6.5.2 Utilities: Redundancy 1:1 ..................................................................................... 5–82
5.2.6.5.3 Utilities: Redundancy 1:N..................................................................................... 5–82
5.2.6.6 Utilities: Circuit-ID...............................................................................................................................5–83
5.2.6.7 Utilities: Firmware ..............................................................................................................................5–84
5.2.6.7.1 Utilities: Firmware Base-Modem ......................................................................... 5–84
5.2.6.7.1.1 Utilities: Firmware Base-Modem Boot-ROM, Image#X ...........................5–84
5.2.6.7.1.2 Utilities: Firmware Base-Modem Select.................................................... 5–84
5.2.6.7.2 Utilities: Firmware Packet-Processor ...................................................................5–85
5.2.6.7.2.1 Utilities: Firmware Packet-Processor Boot-ROM, Image#X .....................5–85
5.2.6.7.2.2 Utilities: Firmware Packet-Processor Select .............................................5–85
5.2.6.8 Utilities: Em (CDM-600/600L Emulation) ........................................................................................5–86
5.2.7 SELECT: ODU Menus (Summary Only) .................................................................................................5–86
5.2.8 SELECT: FAST Menus ..............................................................................................................................5–87
5.2.8.1 FAST: Options......................................................................................................................................5–87
5.2.8.1.1 FAST: Options View Options ................................................................................5–87
5.2.8.1.2 FAST: Options Set Registers .................................................................................5–88
5.2.8.2 FAST: Demo-Mode .............................................................................................................................5–89
5.2.8.3 FAST: CnC ............................................................................................................................................5–90

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CHAPTER 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT .........................6–1
6.1 Introduction .......................................................................................................................6–1
6.2 Ethernet Management Interface Protocols ..........................................................................6–1
6.3 SNMP Interface...................................................................................................................6–2
6.3.1 Management Information Base (MIB) Files...........................................................................................6–2
6.3.2 SNMP Community Strings........................................................................................................................6–3
6.3.3 SNMP Traps ...............................................................................................................................................6–3
6.4 Telnet Interface ..................................................................................................................6–5
6.4.1 Using the Telnet Interface for Remote Control Operation ..................................................................6–5
6.4.1.1 Using HyperTerminal for Telnet Remote Control Operation ..........................................................6–5
6.4.2 Using the Telnet Interface for Telnet Command Line Interface (CLI) Operation...............................6–7
6.5 Web Server (HTTP) Interface ...............................................................................................6–8
6.5.1 User Login .................................................................................................................................................. 6–8
6.5.2 Web Server Interface – Operational Features.......................................................................................6–9
6.5.2.1 Navigation ............................................................................................................................................. 6–9
6.5.2.2 Page Sections ........................................................................................................................................ 6–9
6.5.2.3 Action Buttons ......................................................................................................................................6–9
6.5.2.4 Drop-down Lists..................................................................................................................................6–10
6.5.2.5 Text or Data Entry...............................................................................................................................6–10
6.5.3 Web Server Interface – Menu Tree ......................................................................................................6–11
6.5.3.1 Conditional Access to IP Packet Processor Pages ...........................................................................6–12
6.5.4 Web Server Page Descriptions ..............................................................................................................6–13
6.5.4.1 Home Pages ........................................................................................................................................6–13
6.5.4.1.1 Home | Home ........................................................................................................... 6–13
6.5.4.1.2 Home | Contact ........................................................................................................6–14
6.5.4.1.3 Home | Support ........................................................................................................6–15
6.5.4.2 Admin Pages .......................................................................................................................................6–16
6.5.4.2.1 Admin | Access .........................................................................................................6–16
6.5.4.2.2 Admin | SNMP .......................................................................................................... 6–18
6.5.4.2.3 Admin | Firmware Pages ..........................................................................................6–19
6.5.4.2.3.1 Admin | Firmware | Base Modem..................................................................... 6–19
6.5.4.2.3.2 Admin | Firmware | Packet Processor...............................................................6–20
6.5.4.2.4 Admin | Reboot ........................................................................................................6–21
6.5.4.2.5 Admin | FAST ............................................................................................................ 6–22
6.5.4.2.6 Admin | Utilities........................................................................................................6–23
6.5.4.3 Configuration Pages ...........................................................................................................................6–24
6.5.4.3.1 Configuration | Modem............................................................................................6–24
6.5.4.3.2 Configuration | LAN Pages........................................................................................6–25
6.5.4.3.2.1 Configuration | LAN | IP ....................................................................................6–25
6.5.4.3.2.2 Configuration | LAN | ARP................................................................................. 6–29
6.5.4.3.3 Configuration | Routing Pages.................................................................................. 6–31
6.5.4.3.3.1 Configuration | Routing | Routes ......................................................................6–31
6.5.4.3.3.2 Configuration | Routing | IGMP ........................................................................6–33

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6.5.4.3.3.3 Configuration | Routing | DHCP ........................................................................ 6–35
6.5.4.3.3.4 Configuration | Routing | DNS .......................................................................... 6–36
6.5.4.3.4 Configuration | Managed Switch.............................................................................. 6–37
6.5.4.3.5 Configuration | WAN Pages......................................................................................6–39
6.5.4.3.5.1 Configuration | WAN | QoS Pages.....................................................................6–39
6.5.4.3.5.1.1 Configuration | WAN | QoS Pages – Max/Priority, Min/Max Modes ........ 6–40
6.5.4.3.5.1.2 Configuration | WAN | QoS Pages – DiffServ Mode...................................6–44
6.5.4.3.5.2 Configuration | WAN | Compression ................................................................ 6–46
6.5.4.3.5.3 Configuration | WAN | Encryption ....................................................................6–47
6.5.4.3.6 Configuration | Overhead......................................................................................... 6–49
6.5.4.3.7 Configuration | Utilities ............................................................................................ 6–51
6.5.4.3.8 Configuration | D&I (Drop and Insert)......................................................................6–54
6.5.4.3.9 Configuration | BUC (Block Up Converter) ...............................................................6–55
6.5.4.3.10 Configuration | LNB (Low Noise Block Down Converter) ....................................... 6–55
6.5.4.3.11 Configuration | ANT (Advanced Network Timing) Pages .......................................6–56
6.5.4.3.11.1 Configuration | ANT | PTP (Precision Time Protocol) ..................................... 6–56
6.5.4.3.11.2 Configuration | ANT | SNTP (Simple Network Timing Protocol) ..................... 6–58
6.5.4.3.12 Configuration | MEO (Mid-Earth Orbit)..................................................................6–59
6.5.4.4 Status Pages ........................................................................................................................................6–60
6.5.4.4.1 Status | Modem Status.............................................................................................6–60
6.5.4.4.2 Status | Modem Logs................................................................................................ 6–61
6.5.4.4.2.1 Status | Modem Logs | Base Modem................................................................6–61
6.5.4.4.2.2 Status | Modem Logs | Packet Processor.......................................................... 6–63
6.5.4.4.3 Status | Modem Info.................................................................................................6–64
6.5.4.4.4 Status | Traffic Statistics Pages.................................................................................6–65
6.5.4.4.4.1 Status | Traffic Statistics | Ethernet .................................................................. 6–65
6.5.4.4.4.2 Status | Traffic Statistics | Router .....................................................................6–66
6.5.4.4.4.3 Status | Traffic Statistics | Managed Switch......................................................6–67
6.5.4.4.4.4 Status | Traffic Statistics | WAN ........................................................................ 6–68
6.5.4.4.4.5 Status | Traffic Statistics | Compression ........................................................... 6–69
6.5.4.4.4.6 Status | Traffic Statistics | QoS.......................................................................... 6–70
6.5.4.4.4.7 Status | Traffic Statistics | PTP ..........................................................................6–71
6.5.4.4.4.8 Status | Traffic Statistics | MAC Table............................................................... 6–73
6.5.4.4.4.9 Status | Traffic Statistics | Clear Counters.........................................................6–74
6.5.4.4.5 Status | Performance Pages .....................................................................................6–75
6.5.4.4.5.1 Status | Performance | Performance ................................................................ 6–75
6.5.4.4.5.2 Status | Performance | Graphs .........................................................................6–76
6.5.4.5 ODU (Outdoor Unit) Pages (Summary Only)...................................................................................6–77
6.5.4.6 Redundancy page...............................................................................................................................6–78
CHAPTER 7. FORWARD ERROR CORRECTION OPTIONS............................................7–1
7.1 Introduction .......................................................................................................................7–1
7.2 Viterbi ................................................................................................................................7–1
7.3 Sequential ..........................................................................................................................7–2

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7.4 Reed-Solomon Outer Codec ................................................................................................7–3
7.4.1 Closed Network Modes............................................................................................................................7–3
7.4.2 Open Network Modes..............................................................................................................................7–4
7.5 Trellis Coding (FAST Option) ................................................................................................7–4
7.6 Turbo Product Codec (Hardware Option) .............................................................................7–5
7.7 TPC and Low Density Parity Check (LDPC) coding .................................................................7–6
7.7.1 Introduction...............................................................................................................................................7–6
7.7.2 LDPC versus TPC........................................................................................................................................7–7
7.7.3 End-to-End Processing Delay.................................................................................................................7–10
7.8 VersaFEC (Short-block LDPC)..............................................................................................7–11
7.8.1 VersaFEC Extensions...............................................................................................................................7–13
7.8.1.1 Extended CCM Codes.........................................................................................................................7–13
7.8.1.2 Ultra-Low-Latency (ULL) Codes.........................................................................................................7–13
7.9 Uncoded Operation (No FEC).............................................................................................7–14
CHAPTER 8. AUTOMATIC UPLINK POWER CONTROL (AUPC) ....................................8–1
8.1 Introduction .......................................................................................................................8–1
8.2 Setting AUPC Parameters ....................................................................................................8–2
8.2.1 Target Eb/No ............................................................................................................................................. 8–2
8.2.2 Max Range .................................................................................................................................................8–2
8.2.3 Alarm .......................................................................................................................................................... 8–3
8.2.4 Demod Unlock........................................................................................................................................... 8–3
8.3 Compensation Rate.............................................................................................................8–3
8.4 Monitoring .........................................................................................................................8–4
CHAPTER 9. CLOCK MODES AND DROP AND INSERT (D&I)........................................9–1
9.1 Introduction .......................................................................................................................9–1
9.2 Transmit Clocking ...............................................................................................................9–1
9.2.1 Internal Clock............................................................................................................................................. 9–1
9.2.2 TX Terrestrial.............................................................................................................................................. 9–2
9.2.3 RX Loop-Timed, RX=TX ............................................................................................................................. 9–2
9.2.4 RX Loop-Timed, RX<>TX (Asymmetric Loop Timing) ............................................................................9–2
9.2.5 External TT with ST = RX Satellite ............................................................................................................ 9–2
9.3 Receive Clocking .................................................................................................................9–4
9.3.1 Buffer Disabled (RX Satellite) ...................................................................................................................9–4
9.3.2 Buffer Enabled, TX=RX (TX Terrestrial or Int (SCT) Clock).....................................................................9–4

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9.3.3 Buffer Enabled, RX<>TX (TX Terrestrial or Int (SCT) Clock)...................................................................9–4
9.4 X.21 Notes ..........................................................................................................................9–6
9.5 Drop and Insert...................................................................................................................9–6
9.6 Frame Formats....................................................................................................................9–7
9.7 Timeslot Selection...............................................................................................................9–8
9.8 Drop and Insert (D&I) Clocking ............................................................................................9–9
9.9 RX Buffer Clock = Insert (D&I only) ....................................................................................9–10
9.10 Single-Source Multiple Modems ........................................................................................9–10
9.11 G.703 Clock Extension .......................................................................................................9–11
9.11.1 Clock Extension Mode 1.........................................................................................................................9–11
9.11.2 Clock Extension Mode 2.........................................................................................................................9–12
9.11.3 Clock Extension Mode 3.........................................................................................................................9–12
9.12 Quad E1 Operation ...........................................................................................................9–16
CHAPTER 10. DOUBLETALK CARRIER-IN-CARRIEROPTION .....................................10–1
10.1 Introduction .....................................................................................................................10–1
10.2 What is DoubleTalk Carrier-in-Carrier? ..............................................................................10–1
10.3 Application Requirements................................................................................................. 10–2
10.3.1 Operational Recommendations............................................................................................................10–4
10.4 System Functionality and Operational Considerations........................................................10–5
10.4.1 DoubleTalk Carrier-in-Carrier Cancellation Process............................................................................10–7
10.4.2 Margin Requirements ............................................................................................................................10–9
10.4.3 Carrier-in-Carrier Latency.......................................................................................................................10–9
10.4.4 Carrier-in-Carrier and Adaptive Coding and Modulation ...................................................................10–9
10.4.5 Carrier-in-Carrier Link Design.................................................................................................................10–9
10.4.5.1 Symmetric Data Rate Link .............................................................................................................. 10–10
10.4.5.2 Asymmetric Data Rate Link ............................................................................................................ 10–12
10.4.5.3 Power Limited Links ........................................................................................................................ 10–13
10.4.6 Carrier-in-Carrier Commissioning and Deployment ........................................................................ 10–15
10.4.7 Validating Carrier-in-Carrier Performance ........................................................................................ 10–16
10.5 Operational References................................................................................................... 10–17
10.5.1 Carrier-in-Carrier Link Budget Calculation ........................................................................................ 10–17
10.5.2 Estimating PSD Ratio ........................................................................................................................... 10–18
10.5.2.1 Estimating PSD Ratio from LST....................................................................................................... 10–18
10.5.2.2 Estimating PSD Ratio from Satmaster........................................................................................... 10–19

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10.5.2.3 Estimating PSD Ratio Using Spectrum Analyzer .......................................................................... 10–19
10.6 Carrier-in-Carrier Automatic Power Control (CnC-APC)..................................................... 10–20
10.6.1 Introduction.......................................................................................................................................... 10–20
10.6.2 AUPC and Carrier-in-Carrier in the CDM-625 ................................................................................... 10–20
10.6.3 The CnC Automatic Power Control Algorithm.................................................................................. 10–20
10.6.4 CnC-APC Framing ................................................................................................................................. 10–23
10.6.5 Solving the Problem of Self-Locking................................................................................................... 10–24
10.6.6 CnC-APC Response Time ..................................................................................................................... 10–24
10.6.7 CnC-APC Setup ..................................................................................................................................... 10–24
10.6.8 CnC-APC Redundancy Support Notes ............................................................................................... 10–28
10.7 DoubleTalk Carrier-in-Carrier Specifications..................................................................... 10–29
10.8 Carrier-in-Carrier Summary ............................................................................................. 10–30
10.9 Glossary.......................................................................................................................... 10–30
CHAPTER 11. EDMAC CHANNEL....................................................................................11–1
11.1 Theory of Operation..........................................................................................................11–1
11.1.1 EDMAC .....................................................................................................................................................11–1
11.1.2 Drop & Insert ++......................................................................................................................................11–2
11.1.3 EDMAC-3..................................................................................................................................................11–2
11.2 M&C Connection............................................................................................................... 11–2
11.3 Setup Summary ................................................................................................................11–4
CHAPTER 12. ESC++........................................................................................................12–1
12.1 Introduction .....................................................................................................................12–1
12.2 Overhead Details ..............................................................................................................12–1
12.3 Available Baud Rates.........................................................................................................12–2
12.4 Configuration....................................................................................................................12–2
12.5 Effect on Eb/No Performance ............................................................................................12–2
CHAPTER 13. OFFSET QPSK OPERATION....................................................................13–1
CHAPTER 14. OPEN NETWORK OPERATIONS .............................................................14–1
14.1 Overview..........................................................................................................................14–1
14.2 IBS....................................................................................................................................14–1

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14.2.1 IBS Clock/Data Recovery and De-jitter .................................................................................................14–2
14.2.2 IBS Framing ..............................................................................................................................................14–2
14.2.3 IBS Engineering Service Channel ...........................................................................................................14–2
14.2.4 IBS Scrambling .........................................................................................................................................14–2
14.3 Drop and Insert (D&I)........................................................................................................14–3
14.3.1 D&I Primary Data Interfaces..................................................................................................................14–4
14.3.2 D&I Framing.............................................................................................................................................14–4
14.4 IDR ...................................................................................................................................14–5
14.4.1 IDR Primary Data Interfaces...................................................................................................................14–6
14.4.2 IDR Engineering Service Channel ..........................................................................................................14–6
CHAPTER 15. IP SUB-MUX ..............................................................................................15–1
15.1 Introduction .....................................................................................................................15–1
15.2 Available Ratios ................................................................................................................15–1
15.3 Data Rate vs. Composite Rate............................................................................................15–2
CHAPTER 16. ETHERNET NETWORK CONFIGURATION..............................................16–1
16.1 Introduction .....................................................................................................................16–1
16.2 CDM-625 Ethernet Overview............................................................................................. 16–1
16.2.1 Interface Architecture ............................................................................................................................16–1
16.2.2 Modes of Ethernet Operation ...............................................................................................................16–2
16.2.3 Ethernet Networking Loops...................................................................................................................16–2
16.2.3.1 Networking Loops in Managed Switch Mode.................................................................................16–3
16.2.3.1.1 Hub-to-Hub using Ethernet Switches ..................................................................... 16–3
16.2.3.1.2 Hub-to-Hub using Ethernet Routers ....................................................................... 16–4
16.2.3.1.3 Hub-to-Remotes using Ethernet Switches or Routers............................................16–5
16.2.3.2 Networking Loops in Router Mode (with IP Packet Processor)....................................................16–6
16.3 Ethernet Network Configurations in Managed Switch Mode ..............................................16–7
16.3.1 Point-to-Multipoint Hub-to-Remotes, Split-path Traffic Using Routers ........................................16–7
16.3.2 Point-to-Multipoint Hub-to-Remotes, Split-path Traffic Using Switches ......................................16–8
16.4 Ethernet Network Configurations in Router Mode (with IP Packet Processor)..................... 16–9
16.4.1 Point-to-Multipoint (Router Multipoint Hub) Mode ..........................................................................16–9
16.4.1.1 Router Multipoint Hub Configuration..............................................................................................16–9
16.4.2 Multicast Routing Mode ..................................................................................................................... 16–11
16.4.2.1 Multicast Routing Configuration ................................................................................................... 16–12
16.5 Ethernet Overhead over WAN Interface .......................................................................... 16–13
16.5.1 Managed Switch Mode (without IP Packet Processor) ................................................................... 16–13
16.5.2 Router Mode or Managed Switch Mode (with IP Packet Processor) ............................................ 16–13

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16.6 Ethernet Redundancy...................................................................................................... 16–14
16.7 Advanced Network Timing .............................................................................................. 16–15
16.7.1 Overview............................................................................................................................................... 16–15
16.7.2 SNTP (Simple Network Time Protocol).............................................................................................. 16–15
16.7.3 PTP (Precision Time Protocol)............................................................................................................. 16–15
CHAPTER 17. ADAPTIVE CODING AND MODULATION (ACM) .....................................17–1
17.1 Introduction .....................................................................................................................17–1
17.2 Background ......................................................................................................................17–2
17.3 Requirements for ACM......................................................................................................17–3
17.4 An Existing Satellite ACM Scheme......................................................................................17–5
17.5 Disadvantages of DVB-S2 ..................................................................................................17–5
17.6 VersaFEC ACM ..................................................................................................................17–6
17.7 VersaFEC ACM Latency......................................................................................................17–8
17.8 Configuring VersaFEC ACM in the CDM-625 .......................................................................17–9
17.9 Monitoring ACM performance......................................................................................... 17–11
17.10 ACM Congestion Control ............................................................................................. 17–12
17.11 Notes and Recommendations ...................................................................................... 17–13
17.12 VersaFEC ACM – Summary of Specifications................................................................. 17–15
CHAPTER 18. IP PACKET PROCESSOR OPTION..........................................................18–1
18.1 Introduction .....................................................................................................................18–1
18.1.1 IP Packet Processor – Operational Requirements ..............................................................................18–1
18.1.2 Interoperability Compatibility/Limitations...........................................................................................18–2
18.2 IP Packet Processor Features .............................................................................................18–3
18.2.1 Streamline Encapsulation (SLE) .............................................................................................................18–3
18.2.2 Modes of Operation ...............................................................................................................................18–3
18.2.3 Subsystem Multiplex (Sub-Mux) ...........................................................................................................18–3
18.2.4 Adaptive Coding and Modulation (ACM).............................................................................................18–3
18.2.5 FAST Options ...........................................................................................................................................18–4
18.2.5.1 Header Compression .........................................................................................................................18–4
18.2.5.2 Payload Compression ........................................................................................................................18–5
18.2.5.3 Advanced Quality of Service (QoS)...................................................................................................18–5
18.2.5.4 Advanced Encryption Standard (AES) Encryption ..........................................................................18–5

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18.3 CDM-625 Operation with IP Packet Processor ....................................................................18–6
18.3.1 Front Panel Operation............................................................................................................................18–6
18.3.2 Ethernet-based Remote Product Management .................................................................................18–6
18.3.2.1 SNMP Interface...................................................................................................................................18–6
18.3.2.2 Telnet Interface ..................................................................................................................................18–7
18.3.2.3 Web Server (HTTP) Interface ............................................................................................................18–7
18.4 List of Supported Internet RFCs (Requests for Comment) ...................................................18–8
18.5 IP Packet Processor Field Upgrade Procedure .................................................................... 18–9
18.5.1 Overview..................................................................................................................................................18–9
18.5.2 Requirements for Field Upgrade...........................................................................................................18–9
18.5.3 Field Upgrade Procedure .................................................................................................................... 18–10
CHAPTER 19. CARRIER ID (METACARRIER®) ...............................................................19–1
19.1 Introduction .....................................................................................................................19–1
19.2 About MetaCarrier............................................................................................................19–1
19.3 Functional Description ......................................................................................................19–2
19.4 Configuring the CDM-625 for Carrier ID Operation .............................................................19–3
19.4.1 Enabling Carrier ID Operation................................................................................................................19–4
19.4.1.1 Enabling Operation via the CDM-625 Front Panel and VFD..........................................................19–4
19.4.1.2 Enabling Operation via the CDM-625 Web Server (HTTP) Interface............................................19–4
19.4.2 Creating the MetaCarrier Custom Message ........................................................................................19–5
19.4.2.1 Creating the Message via the CDM-625 Front Panel and VFD .....................................................19–5
19.4.2.2 Creating the Message via the CDM-625 Web Server (HTTP) Interface .......................................19–6
CHAPTER 20. QUALITY OF SERVICE (QOS)..................................................................20–1
20.1 Overview..........................................................................................................................20–1
20.1.1 QoS Terminology.....................................................................................................................................20–1
20.2 Layer 2 QoS.......................................................................................................................20–2
20.2.1 Modem Tx Data Rate vs. QoS Tx Data Rate.........................................................................................20–2
20.2.2 Flow Control ............................................................................................................................................20–3
20.2.3 Port-based Layer 2 QoS..........................................................................................................................20–3
20.2.4 VLAN-based Layer 2 QoS........................................................................................................................20–6
20.3 Layer 3 QoS..................................................................................................................... 20–10
20.3.1 Layer 3 QoS Max-Pri Mode................................................................................................................. 20–10
20.3.2 Layer 3 QoS Min-Max Mode............................................................................................................... 20–12
20.3.3 Layer 3 QoS DiffServ Mode................................................................................................................. 20–14
20.3.3.1 Layer 3 QoS Congestion Avoidance............................................................................................... 20–14
20.3.3.2 Layer 3 QoS List of Supported RFCs (Requests for Comment)................................................... 20–15