CDM-Qx
Revision
Page
Errata a
Acquisition range
Page
Errata B
Page
Errata C
Rx Rs n/k ENT IESS-310 network 219/201
Page
Errata D
Tx Rs n/k ENT IESS-310 network 219/201
Page
Part Number MN/CDMQx.IOM Revision January 20,2007
Customer Support
Table of Contents
Chapter Functional Description External Connections
Evolution of TPC in Comtech Products
Comparison of all TPC Modes
11-1
Management Information Base MIB Files
About this Manual
Electrical Safety
International Symbols
CE Mark
Warranty Policy
CDM-Qx Satellite Modem Revision Preface MN/CDMQx.IOM Xii
Introduction
CDM-Qx/QxL
Features
Verification
DoubleTalk Carrier-in-Carrier
Software Flash Upgrading
Turbo Product Coding
Remote Control
Data Interfaces
Assembly Description
Major Assemblies
Fast Options and Hardware Options
Fast
Fast Accessible Options
Fast System Theory
Implementation
Hardware Options
Supporting Hardware and Software
Band
Compatibility
CDM-Qx Satellite Modem Revision Introduction MN/CDMQx.IOM
Installation
Unpacking
Optional Rear-Mounting Installation Bracket
Mounting
Installation of the Optional Mounting Brackets
Configuration
Select Internal if Loop
Connect External Cables
Observe the following
Functional Description
Page
Modem Block Diagram
Page
Connections
Front Panel
LED
Rear Panel
Rear Panel
Page
Modem Rear Panel Connectors
Name Ref. Desig Connector Type Function
BNC
IEC
RF Output 75 or 50Ω
2 M&C 10/100BaseT Connector
3 485/232 Connector
Remote Control Interface Connector Pin Assignments
Use for 2-wire RS-485 operation
Pin # Signal Function Name
Alarms Connector
Alarm Interface Connector Pin Assignments
Balanced G.703 Connector Tx/Rx Connector
Unbalanced G.703 Tx/Rx Connectors
Balanced G.703 Interface Connector Pin Assignments
Pin # Signal Function Name Direction
7 RS-530 Data Interface Connector
Pin # Generic Signal Description Direction RS-422 RS
Lvds
RS-232 Circuit #
Quad E1 Data Interface Connectors
Xx6. Quad E1 Data Interface J1 Connector Pin Assignments
RX and TX if Connectors
AC Power Connector
DC Power Connector
AC Power Specifications
Ground Connector
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Operation
Color Condition
Front Panel LED Indicators
LED
CLR
Diamond Keypad Presently used on all Units
ENT
Left-Hand Display Area
Modems
Right Hand Display Area
TXF
Redundancy
MD MD
Accessing the Display Area
Spectrum Analyzer
Right-Hand Display Area
RXS
Principle Menu Tree
Main Menu Config Monitor Test Info Save/Load Util ODU
Opening Screen
Comtech EF Data CDM-Qx Firmware Version
ODU
Config
Config Remote Tx Rx Group Frame Interface Ref Mask ODU
ConfigRemoteSerialInterface
ConfigRemote Remote Control
ConfigRemoteSerial
ConfigRemoteEthernet
ConfigRemoteSerialInterfaceRS485 RS-485 Bus Address
ConfigRemoteSerialBaudrate
ConfigRemoteEthernetGateway
ConfigRemoteEthernetAddress
ConfigRemoteEthernetMAC
ConfigRemoteEthernetSNMP
Snmp
ConfigRemoteEthernetSNMPCommunities
ConfigRemoteEthernetSNMPTraps
Trap Community , ENT comtech
Trap Version ENT SNMPv1 SNMPv2
Trap IP Addr#1 ENT
Trap IP Addr#2 ENT
ConfigTx Transmit
Tx FEC Mod Code Data Freq On/Off Pwr Scram Clk Inv Txα
ConfigTxFEC TX FEC Type
ConfigTxMod Modulation Scheme
Tx FEC Vit Vit+RS TCM+RS
TPC
ConfigTxCode TX Code Rate
ConfigTxData TX Data Rate
Tx Code Rate 5/16 21/44 1/2 3/4 17/18
Tx Data Rate 05000.000kbps Sym02500.000ksps
ConfigTxFreq TX if Frequency
Tx if Freq 1156.3456 MHz
ConfigTxOn/Off Transmit ON/OFF Control
Tx if Freq 1156.3456 MHz RF=14156.3456 ENT
Tx Output State On Off RxTxInhibit Common , ENT
Tx Common Output State Off On
ConfigTxPwrAUPC Aupc Mode
ConfigTxPwr Transmit Power Level Mode
ConfigTxPwrManual Manual Mode
ConfigTxPwrAUPC Target Eb/No
ConfigTxPwrAUPC MAX Range
ConfigTxPwrAUPC Alarm
ConfigTxPwrAUPC DEMOD-UNLOCK
ConfigTxClk TX Clocking Mode
ConfigTxPwrCombined Combined Transmit Power
ConfigTxScram Scrambler
ConfigTxInv TX Inversion Functions
Tx Inversion functions Spectrum Data Clock ,ENT
Tx Spectral Inversion Normal Inverted
Tx Data Sense
ConfigTxTxα TX Roll-Off α factor
ConfigRx Receive
Tx Roll-off 20% 35% ENT
RxFEC Demod Code Data Freq Acq Descram Buf Inv Misc CnC
ConfigRxFEC RX FEC Type
Rx FEC Vit Vit+RS
TCM+RS
Case Rules Comment
ConfigRxDemod Demodulation Scheme
ConfigRxCode RX Code Rate
Demodulation Bpsk Qpsk 8-PSK 16-QAM
Rx Code Rate 5/16 21/44 1/2 3/4 7/8 17/18
ConfigRxData RX Data Rate
Rx Data Rate 05000.000kbps Sym02500.000ksps
ConfigRxFreq RX Frequency
ConfigRxAcq Demod Acquisition Range
Rx if Freq1156.3456 MHz RF=12156.3456 ENT
Demod Acquisition Range
ENT
ConfigRxDescram Descrambler
ConfigRxBuf RX Buffer Clock Source
ConfigRxInv RX Inversion Functions
ConfigRxMisc Rx Miscellaneous
ConfigRxCnC CARRIER-IN-CARRIER→
ConfigRxMiscEbNo Eb/No Alarm
ConfigRxMiscRxα RX Roll-Off α factor
ConfigRxCnCMode CnC→ Mode of Operation
ConfigRxCnCFrqOffs CnC Frequency Offset
Please Check TX Power Level
Please Wait
ConfigRxCnCSrchDelay CnC Search Delay
ConfigRxCnCReAcq CnC RE-ACQUISITION Time
ConfigGroup Grouping MOD/DEMOD Cards
ConfigGroupModem
ConfigGroupRedundancy
ConfigGroupRedundancyConfig
ConfigGroupRedundancyConfig 11
ConfigGroupRedundancyConfig 12
ConfigGroupRedundancyMode
ConfigGroupRedundancyModeManual
ConfigFrame Framing Mode
ConfigFrameUnframed Unframed
Edmac Mode
Framing mix AUPC-Only
AUPC+EDMAC
Master Slave
ConfigFrameD&I++ D&I++
Distant-end Base Address
0240
Address This Slave Unit ENT
ConfigInterface Data Interface
Interface RS422 V.35 RS232
Hssi ASI G.703 QDI None
RTS/CTS operation , ENT Loop,RTS Controls Tx Out
HDB3 AMI
T1 Line Length Feet
703 E1 Line Code HDB3 AMI , ENT
HDB3 AMI
ConfigRef Reference Oscillator
ConfigMask Mask
Alarm Mask Transmit Receive Reference BUC LNB ,ENT
Frequency Reference Internal MHz ENT
Tx Alarm Mask Tx-FIFO BPV Tx-AIS ENT
Tx-FIFO Alarm ENT Active Masked
Rx Alarm Mask AGC Eb/No Rx-AIS Buffer
AGC Alarm
LNB Alarm
Reference Alarm
BUC Alarm
ConfigODU Outdoor Unit for L-Band Unit Only
ConfigODUBUC Block Upconverter BUC
ODU
BUC LNB
ConfigODUBUCM&C-FSK M&C FSK
ConfigODUBUCM&C-FSKAddress FSK Comms
ConfigODUBUCM&C-FSKAddress FSK Address
BUC M&C
ConfigODUBUCM&C-FSKTx-On/Off FSK TX-ON/OFF
ConfigODUBUCDC-Pwr BUC DC Power
ConfigODUBUC10MHz BUC 10MHz
ConfigODUBUCAlarm BUC Alarm
ConfigODUBUCDelay BUC Delay
BUC Current Alarm Upper Limit1200mA
BUC Current Alarm Lower Limit1200mA
Power-On Delay
ConfigODUBUCLO BUC LO
ConfigODUBUCMix BUC MIX
LNB DC
ConfigODULNB LNB
ConfigODULNBVoltage LNB Voltage
ConfigODULNBAlarm LNB Alarm
ConfigODULNBPower-On/Off LNB POWER- ON/OFF
ConfigODULNB10MHz LNB 10MHz
ConfigODULNBLO LO
ConfigODULNBMix MIX
LNB Current Alarm Lower Limit 050mA ENT
LNB Frequency Mix
MonitorAlarms Alarms
MonitorAlarmsUnit Unit Alarms
MonitorAlarmsODU Outdoor Unit Alarms
MonitorAlarmsReceive Receive Alarms
MonitorAlarmsTransmit Transmit Alarms
MonitorRx-Params RECEIVE-PARAMETERS
MonitorEvent-Log EVENT-LOG or Stored Events
Log 024 30/11/97 Clear Demod Lock 3 ,ENT
Log 023 30/11/02 Fault Demod Lock 3 ,ENT
MonitorEvent-LogView View Stored Events
MonitorStatsView View Link Statistics
Link Statistics View Clear-All Config ENT
MonitorStats Link Statistics for grouped as modem only
MonitorStatsConfig Configure Stats
Stats Logging Interval Disabled,ENT
MonitorStatsClear-All Clear ALL Stats
Clear all Stored Stats? No Yes
MonitorAUPC Monitor AUPCfor grouped as modem only
MonitorCnC Monitor CARRIER-IN-CARRIER CnC
MonitorODU Monitor ODU for L-Band Unit only
ODU LNB
Test
Test Mode Bist ENT Spec-Analyzer
Mode Norm if 2 Dig 2 I/O 2 RF Tx-CW Tx1-0 ENT
TX-1,0
Norm If Loop Dig Loop RF Loop
TX-CW
Bist BERT-Config BERT-Mon BERT-Control ENT
Bert Config Tx=ON Rx=ON Tx-Pat=2047 Rx-Pat=2047
Bert Monitor Errs=0000253 BER=8.5E-07
Bert Control 10E-3Err=OFF Restart=NO SyncThres=256
Mode Config
Spectrum Analyzer Mode
Config Spectrum Analyzer CenterFreq Span
Spectrum Analyzer
If Loopback
Info Rem Tx Rx Buffer Frame Interface Mask Ref ID
InfoRem Remote Control Information
Info Information
Tx C N N
InfoTx TX Information
Tx 1140.000 05000.000 TUR 8P 17/18 S EXT -20.0 on N
InfoRx RX Information
Rx 1140.000 05000.000 TUR 8P 17/18 D RX BUF +/-32k N
Rx C N N
Demod Sweep Acquisition range
Buffer Enabled Tx=Rx ENT
InfoBuffer Buffer Information
InfoFrame Framing and Edmac Information
InfoInterface Interface Information
InfoMask Alarm Mask Information
InfoRef Frequency Reference
InfoID Circuit Identification
Character TST Message
Save/LoadSave Save Configuration
No YES
Save/LoadLoad Load Configuration
New Config has been Loaded From Location
Empty ENT
Contains No Data! ENT
UtilityRxBuffer Buffer Recenter
UtilityClock REAL-TIME Clock
Utility RxBuffer Clock Ref ID Display Firmware Fast
Real-Time Clock , ,ENT Time=120000 Date24/04/03
UtilityRef Reference Adjust
Warm-up delay ENT
UtilityID Circuit Identification
Internal Freq
UtilityDisplay Display Brightness
UtilityFirmware Firmware
Programming Cpld
Current Active Image #1 Next Reboot Image #1 #2
Update Cpld to v1.x.x? No Yes ENT
UtilityFAST Fast Code Options
Fast
View Options ENT Redun Not Installed
Edit 20 digit Fast Code 00000000000000000000 ENT
Forward Error Correction Options
For Against
Viterbi
Viterbi Decoding Summary
Reed-Solomon Outer Codec
Closed Network Modes
Concatenated R-S Coding Summary
Trellis Coding
PSK/TCM Coding Summary
Turbo Product Codec Hardware Option Introduction
Evolution of TPC in Comtech Products
Available TPC Modes
End-to-End Processing Delay
Turbo Product Coding processing delay comparison
Comparison of all TPC Modes
Turbo Product Coding Summary
Viterbi Decoding
BER
Viterbi with
PSK/TCM Rate 2/3
Decoding, with
Without 219, 201 RS
Outer Code
CDM-Qx Satellite Modem Forward Error Correction Options
Comtech Turbo Product Codec Rate 3/4 QPSK, 8-PSK 16-QAM
Comtech Turbo Product Codec Rate 7/8 QPSK, 8-PSK 16-QAM
Comtech Turbo Product Codec
Rate 21/44 Bpsk and Rate 5/16 Bpsk Turbo
BPSK/QPSK
BER
Page
Edmac Channel
Theory Of Operation
M&C Connection
Setup Summary
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Automatic Uplink Power Control
Max Range
Setting Aupc Parameters
Target Eb/No
Compensation Rate
Alarm
Demod Unlock
Monitoring
DoubleTalk Carrier-in-Carrier
Page
Transponder Utilization with and without CnC→
Page
Redundancy
CDM-Qx Satellite Modem Revision Redundancy MN/CDMQx.IOM 10-2
Management
Ethernet Management Interface Protocols
Web Server Http Interface
Web
Level
Web Server Menu Tree
Web Server Menu Tree
11-4
11-5
11-6
11-7
Snmp Interface
Management Information Base MIB Files
Snmp Community Strings
Snmp Traps
Alarms and Faults SNMPv2 notifications
Telnet Interface
11-11
11-12
Page
Page
Modulator
FEC
Power Spectral Density
Referred to symbol rate
Comtech EF Data
CDM-Qx Transmit
Demodulator
Viterbi
PSK/TCM Codec
Turbo Product
Coding
HIGHER-ORDER
Modulation
Automatic Uplink Power Control Future
Hssi
Data Rate Ranges
FCC
Framing Summary Future
Miscellaneous
Page
Ethernet FTP upload procedure
Appendix B. Flash Upgrading
Construction
Sector
CDM-Qx Satellite Modem Revision Flash Upgrading MN/CDMQx.IOM
Appendix C. Remote Control
RS-485
RS-232
Basic Protocol
Packet Structure
Start Of Packet
Controller-to-target
Example 0135/TRQ=70.2345CR Target-to-controller
Slot Address
Address
Instruction Code
Instruction Code Qualifier
‘=’ code Target to Controller is used in two ways
$ code target-to-controller is only used as follows
End Of Packet
Remote Commands
Message Arguments
CDM-Qx Satellite Modem Revision Remote Control MN/CDMQx.IOM
TX Remote Commands
TCR=
TCR?
TCR
TCR#
TSI=
TSI= TSI?
TSI
TSI# TSI$
TCK=
TCK= TCK?
TCK
TCK#
RFQ=
RFQ= RFQ?
RFQ
RFQ# RFQ$
RMD=
RMD= RMD?
=BPSK RMD
=QPSK RMD#
RDR=
RDR= RDR?
RDR
RDR#
RSW=
RSW= RSW?
RSW
RSW#
EBA=
EBA= EBA?
EBA
EBA# EBA$
ITF=
ITF= ITF?
ITF
ITF#
ESA=
ESA= ESA?
ESA
ERF=
TST=
TST= TST?
TST
TST#
AUP=
AUP= AUP?
AUP
AUP#
LBO=
LBO= LBO?
LBO
LBO#
Hssi
HHC=
HHC?
HHC
Applies to
CST=
CST?
CST
CST#
TIM=
TIM= TIM?
TIM
TIM#
IRM=
IRM = IRM?
IRM
IRM#
FBU=
FBU= FBU?
FBU
FBU#
CSD=
CSD?
CSD
CSD#
Query Commands
EID?
Bytes
UID?
=Change in fault
FLT?
WHO?
REB?
CC is Fault Code numbers, as in FLT? Or Infor Code, which
RNE=
RNS=CR
RSL?
RX BER
CRM?
CDM?
FRW?
CFM?
SWR?
IMG=
IMG= IMG?
IMG
IMG#
ITP?
Bulk Commands
OGC=
OGC= OGC?
OGC
OGC#
Band Unit Only
Arguments For Command or Response to Query
BAD=
BOE=
BCH=
BCL=
BUC LO BLO=
BUC
BUT?
BPA?
BSV?
Parameter Instruction Type Code Qualifier LNB Power
Control Band Unit Only
Parameter Instruction Type Code Qualifier
Parameter Command Instruction Type Code Qualifier
BCT=
BCT= BCT?
BCT#
BCT$
SPM=
SPF=
SPS=
SPM= SPM?
DNI=
DNI= DNI? DNI# DNI$ DNI
Applies to Cards grouped As modem
Parameter Instruction Type Code Qualifier Drop Timeslot
DTS=
CDM-Qx Satellite Modem Revision Remote Control MN/CDMQx.IOM
Performance Characterization
Carrier-in-CarrierDescription
Degradation Due To Carrier Spacing
Figure D-1. Adjacent Carrier a As Tested and BAs Plotted
Carrier Spacing For
20% Rolloff
Degradation ≤ 0.5 dB
Carrier Spacing For 35% Rolloff
PSK 3/4 Turbo, α = 35%
Selecting The Adjacent Carrier Curve
Figure D-5. Adjacent Carrier Cases
Curve To Use In Figure D-2, Error
Carrier-in-Carrier Ratio CnC Ratio
Case Desired Adjacent Carrier
Found., or D-4
Figure D-7. CnC Ratio For Qpsk and 8-PSK
1st CnC Example Adjacent Carriers, CnC Ratio and Rain Fade
Symbol Rate Ratio
CnC Carrier Offset
DL Fade UL Fade Site a Site B
Site a Site B
Comment
Per Figure D
Figure D-10. Link With Fading At Site a
2nd CnC Example CnC Ratio With Asymmetric Links
Link parameters and results are summarized in the table
Parameters Site a Site B
Per Figure D- Qpsk
3rd CnC Example Asymmetric Link With Rain Fade
Eb/No Degradation At Site a Parameter Due To Fade At
Conclusion
Eb/No Degradation At Site B Parameter Due To Fade At
Metric Conversions
480 333 2200 Phone 480 333 2161 FAX