CDM-600 Modem Block Diagram | Premier Mounts specs

CDM-600 Satellite Modem	Revision 7
Functional Description	MN/CDM600.IOM

removed. Following this, the data passes to the Plesiochronous/Doppler buffer, which has a programmable size, or may be bypassed. From here, the receive clock and data signals are routed to the terrestrial interface, and are passed to the externally connected DTE equipment.

Physically the CDM-600 modem is comprised of two main card assemblies.

•The first of these is the baseband framer card, which includes all of the interface circuits, the framer/de-framer, plesiochronous/Doppler buffer, Reed Solomon outer codec, and the main microcontroller.

•The second card is the modem itself, that performs all of signal processing functions of modulation, demodulation, and Forward Error Correction.

These functions are shown in Figure 3-1.

INT CLK

AS/0423

BASEBAND

DDS (U33)

TX G703 T1/E1

MUX (U22)

FRAMING

DEFRAMER AND

CARD

INTERFACE

(U46)

TX FRAMING

TX AUDIO INTERFACE

(IBS, IDR, D&I

TX REED-

OR EDMAC)

(U43 & U50)

SOLOMON

WITH

RS-422, V.35 OR

SCRAMB-

IBS OR

LER

RS-232

(U12)

INTERFACE

EDMAC

(U63 & U67)

SCRAM-

BLER

ENC CLK

LVDS

DDS (U24)

INTERFACE

(U62 & U64)

G703 T2/E2

TX LINE

DECODING

INTERFACE

(U74)

OVERHEAD

MICROPROCESSOR (U44)

& PROCESSOR FPGA (U49)

INTERFACES

(U55, 57, 59, 68, & 75)

INS CLK

RX DE-FRAMING

RX LINE

DDS (U42)

(IBS, IDR, D&I OR

RX AUDIO INTERFACE

ENCODING

EDMAC)

(U60 & U61)

RX REED-

SOLOMON

RX G703 T1/E1

WITH DE-

SCRAMB-

BUFFER

IBS OR EDMAC

DEFRAMER AND

LER

INSERT

DESCRAMBLER

INTERFACE

(U20)

(U51)

DEMUX (U19)

INS CLK

BUFFER CLK

DDS (U42)

DDS (U41)

AS/0424

MODEM

CARD

					TXFIR (U61)
SEQ				VIT/SEQ/OM73
SEQ				VIT/SEQ/OM73
ENCODER				SCRAMBLERS
ENCODER				SCRAMBLERS


			I & Q FILTERS

				TX IF
VITERBI
& TCM
CODEC
(U48)				RX IF
TURBO CODEC		FIR/PD & I/Q
W/ SCRAMBLER		RECOVERY (U45)
& DESCRAMBLER
& DESCRAMBLER
LDPC CARD
LDPC CARD
(OPTIONAL CARD)
			CARRIER
				DACS
				(U52)

SEQ

DEC-

ODER

SYM & BIT

VIT/SEQ/OM73TIMING

DESCRAMBLERSRECOVERY

DLF/NCO (U47)

BIT/SYM

DACS (U49)

Figure 3-1. CDM-600 Modem Block Diagram

3–2

Image 48

Premier Mounts specifications CDM-600 Modem Block Diagram

Contents

CDM-600 RevisionPage Errata a APP= APP? APP# Errata B Errata C Input power range CDM-570 Desired Carrier -30 to -60 dBm +40 dBc maximum composite, up to -10 dBm, absolute max Filename Terrata BER=10-5 DB 4.0 dB DB 6.6 dB DB 7.7 dB BER=10-8 DB 4.2 dB DB 6.8 dB DB 7.9 dB Comtech Turbo Product Codec Errata F AGC Voltage \tpubs\manuals\releasedword\modems\cdm600rev7\errata f.doc Errata G \tpubs\manuals\releasedword\modems\cdm600rev7\errata g.doc \tpubs\manuals\releasedword\modems\cdm600rev7\errata g.doc This page intentionally left blank Part Number MN/CDM600.IOM MN/CDM600.IOM Table of Contents External Frequency Reference Connector J12 CDM-600 Satellite ModemPreface MN/CDM600.IOM Forward Error Correction Options Front Panel Operation 10.1 10-110.2 10-3 Buffer Enabled, Rxtx TX Terrestrial or External Clock 12.2.3 Alarm 12-3 12.2.410.3 10-3 10.4 10-6 13.5 15.1 Modulator 15-1 15.215-3 15.3 Tables Appendix D. ODU Operation Figures Customer Service Preface About this Manual Conventions and References Metric ConversionRecommended Standard Designations Reporting Comments or Suggestions Concerning this Manual Electrical Safety FusesEnvironmental Installation Telecommunications Terminal Equipment Directive EMC Electromagnetic Compatibility Warranty Policy Limitations of WarrantyExclusive Remedies Disclaimer Introduction CDM-600 Standard Features Aupc Software Flash Upgrading VerificationData Interfaces Assembly Description Major AssembliesFast Options and Hardware Options Order to operate in Turbo TPC Mode Fast Accessible Options Fast System TheoryImplementation Hardware Options Supporting Hardware and Software Compatibility New in this Release This page is intentionally blank Installation Unpacking Mounting Optional Mounting Kit , KT/6228-2 Installation of the Optional Mounting Bracket, KT/6228-2 Configuration Select Internal if LoopConnect External Cables Functional Description CDM-600 Modem Block Diagram Physical IntroductionFront Panel IEC Line Input Connector Name Ref Des Connector Type FunctionRear Panel Rx and Tx if Connectors J1 and J2 Overhead Data Connector P3AData Interface Connector P3B External Reference Connector J9 Remote Control connector P4B IDR Alarm connector P5AForm C Traffic Alarm Connector P5B Auxiliary Serial Connector P6 12 IDI, DDO Connectors J10A and J11A External Frequency Reference Connector J12Unbalanced G.703 Tx/Rx J10B and J11B Dimensional Envelope Dimensional Envelope Connector Connector Overview BNC Connectors Overhead Interface Connector P3ABNC Connectors Overhead Interface Connector Pin Assignments Data Interface Connector Pin Assignments RR B Audio Interface Connector P4A Remote Control Interface Connector P4BAudio Interface Connector Pin Assignments Remote Control Interface Connector Pin Assignments IDR Backward Alarms Connector P5A Unit Alarms P5BIDR Alarm Interface Connector Pin Assignments Alarm Interface Connector Pin Assignments Auxiliary Serial Connector USB Type B Socket 10. Balanced G.703 Interface Connector Pin AssignmentsPin # Signal Function Name Direction AC Power Connector Ground ConnectorAC Power Specifications This page is intentionally left blank Front Panel Description Front Panel LED Indicators LEDColor Condition Function of these keys is as follows EnterClear Selection Menu Trees Opening Screen Main MenuComtech CDM-600 Open Network Modem Turbo TPC/LDPC VER Comtech CDM-600E Open Network Modem Turbo TPC/LDPC VER Config Config ALL Config ModeMode TX=RS422NONE ALL = Start STOP, Start Config TX Config TX TX-IFTX-IF Power Encoder MOD Data Scrambler TX-IF Carrier = on ON,OFF,RTI Config TX Power Output Power Mode = Manual MANUAL,AUPCOutput Power Level = -20.0 dBm Output Power Mode = Aupc MANUAL,AUPC Config TX Encoder TPC Turbo Hardware option Config TX Encoder REED-SOLOMON on REED-SOLOMON Encoding = ON200/180 Config TX Modulation MODULATION= Qpsk B,Q,OQ-PSKFEC Rate = 1/2 1/2,3/4,7/8 Config TX Data Config TX ScramblerData Invert = OFF ON,OFF TX Scrambler = on ON,OFF Frame Scrambler Config RX Config RX RX-IF Config RX Decoder Config RX Decoder REED-SOLOMON on REED-SOLOMON Decoding = ON200/180 Config RX Demodulation Config RX DataDemodulation = QPSKB,Q,OQ,8PSK,16QAM FEC Rate = 1/2 3/4,7/8 Config RX Descrambler RX Descrambler = on ON,OFF Frame Descrambler Config RX EbNo Config ClocksConfig Clocks TX Clock Clocking TX-CLOCK Configclocks RX BUFFER/CLOCK CLK= RX-SAT RX-SAT,TX-TERR,EXT-CLK,INSBUFFER-SIZE = 00016bytes00002ms Center Config Clocks RX BUFFER/CLOCK Center Config Clocks EXT-BASEBAND-CLOCKConfig Clocks EXT-FREQ-REF Config Clocks Internal Reference Config Drop & Insert Config Drop & Insert Drop Channel TimeslotsDRP-TYPE= T1-D4 CHAN/TS LOOP=Y Y/N INS-TYPE= T1-D4 CHAN/TS DRP-CH 1 2 3 TS 01 02 03 Config Drop & Insert Insert Channel Timeslots Config EdmacConfig Misc Edmac Mode = Master IDLE/MASTER/SLAVE Edmac Address = Config Misc G.703 Code Config Misc IDR-ESC-TYPEConfig Misc Adpcm Audio Volume VOLUME= Config Misc HIGH-RATE-ESC Config Misc WARM-UPHIGH-STAB Reference POWER-UP WARM-UP No DELAYINSTANT-ON INSTANT-ON,DELAY Config Remote Control Onfig Remote Control Interface Config Remote Control Char Format Config MaskConfig Mask AIS Configure Alarm Mask AIS Buffer Rxif SAT-ALM TERR-ALM Config Mask Buffer Slip Config Mask RX-IFConfig Mask Satellite Alarms Config Mask Satellite Alarms TX Config Mask Satellite Alarms RX Config Mask TERR-ALMConfig Impedance Config Statistics Modem Test Mode = Normal NORM,TX-CW,TX-1/0,IF↓,RF↓,DIG↓,I/O↓ Test Loopback Modes Info Mode InformationInfoall Info ID Info TX Info RXTop Line Bottom line Info Clocks Info EdmacInfo Drop Type Info Insert Type Info Alarms Mask Info RemoteInfo Misc Monitor LIVE-ALARMS Live UNIT= None NET= Alarms RECV=DEMOD Lock XMT=Hi-Stab Freq Ref Module Ref Activity Fault Monitor Monitor Stored Events Stored Events Clear ALL no NO,YES #199 FT-FRAME Sync23/07/01 Network Monitor Statistics AUPC-PARAMS Remote EbNo=6.8dB Transmit Power INCREASE=1.2dB Configuration 0 Load Store AvailableMonitor RX Parameters Monitor AUPC-PARAMS STORE/LOAD Override Configuration UtilitiesUtilities SET-RTC Utilities Brightness Utilities 11 Manual Switch Utilities LampUtilities Circuit ID 7 ODU FastFast SET Fast View Forward Error Correction Options Viterbi Sequential Viterbi Decoding SummaryFor Against Reed-Solomon Outer Codec Sequential Decoding Summary Code Rate Mode Concatenated RS Coding Summary Trellis Coding Fast Option PSK/TCM Coding Summary Turbo Product Codec Hardware Option TPC and Low Density Parity Check Ldpc coding Introduction Ldpc versus TPC Available TPC and Ldpc Modes TPC Code Rate/Modulation Data Rate RangeLdpc Code Rate/Modulation Data Rate Range End-to-End Processing Delay Turbo Product Coding Processing Delay ComparisonFEC Mode 64 kbps data rate End-to-end delay, ms Qpsk Rate 1/2 Viterbi Uncoded Operation No FEC TPC and Ldpc Summary MN/CDM600.IOM Viterbi Sequential Decoding Sequential Sequential Decoding 2048 kbps Viterbi with With PSK/TCM Rate 2/3 Rate 3/4 QPSK/OQPSK Performance with CDM-600 Firmware Version Or higher Rate 7/8 QPSK/OQPSK Rate 1/2 QPSK/OQPSK Comtech Turbo Product Codec Rate 21/44 Bpsk 220,200 RS Differential Encoding LDPC, BPSK, Qpsk QPSK/OQPSK/8-PSK QPSK/OQPSK Ldpc Rate 3/4 PSK/16-QAM This page is intentionally blank Offset Qpsk Operation CDM-600 Satellite Modem Revision Offset Qpsk Operation Open Network Operations IBS IBS Clock/data recovery and De-jitter IBS Engineering Service ChannelIBS Framing IBS Scrambling 1 D&I Primary Data Interfaces 2 D&I Framing IDR Ccitt G.721 IDR Engineering Service Channel IDR Primary Data Interfaces This page is intentionally blank Clock Modes and Drop and Insert D&I Transmit ClockingInternal Clock Tx Terrestrial Rx Loop-Timed, RX=TXRx Loop-Timed, Rxtx Asymmetric Loop Timing External Clock Buffer Disabled RX Satellite Buffer Enabled, TX=RX TX Terrestrial or External ClockBuffer Enabled, Rxtx TX Terrestrial or External Clock Receive Clocking Tx Clock Modes Rx Clock Modes 10-6 Frame Formats Supported T1 and E1 Framing formats Time Slot Selection Drop and Insert Clocking Drop and Insert Clocking Rx Buffer Clock = Insert D&I only Single-Source Multiple ModemsReceive Transmit Single-Source Multiple Modems Daisy Chain 10-12 Edmac Channel Theory Of Operation 11.2 M&C Connection Setup Summary Drop & Insert ++ Automatic Uplink Power Control Setting Aupc Parameters Target Eb/NoMax Range Alarm Demod UnlockCompensation Rate Monitoring ESC++ Overhead Details Available Baud Rates Effect on Eb/No performance Flash Upgrading CDM-600 Satellite Modem Revision Flash Upgrading Summary of Specifications Modulator CDM-600 Satellite Modem Revision Summary of Specifications Power Spectral Density Referred to symbol rate Comtech EF Data CDM-600 Transmit 15-4 CDM-600 Satellite Modem Revision Remote Control Codec BER Data Interfaces Automatic Uplink Power Control Data Rate Ranges Miscellaneous Front panel 15-10 Remote Control EIA-485 EIA-232 Basic Protocol Packet Structure Start Of PacketAddress Instruction Code Instruction Code Qualifier Message Arguments End Of Packet Alphabetical list of Remote Commands TFQ= TFQ= TFQ?TFQ TFQ# TFT= TFT= TFT?TFT TFT# TCR= TCR= TCR?TCR TCR# TRS= TRS= TRS?TRS TRS# TXO= TXO= TXO?TXO TXO# REB? PLI?TCK= TCK= TCK? TTA= TTA= TTA?TTA TTA# TIP= TIP= TIP?TIP TIP# RFM= RFM= RFM?RFM =IBS RFM# =IDR =INSERT RMD= RMD= RMD?=BPSK RMD =QPSK RMD# =OQPSK RDR= RDR= RDR?RDR RDR# REF= REF= REF?REF# RRS= IRD= IRD= IRD?IRD IRD# RVL= RVL= RVL?RVL RVL# RET= RET= RET?RET RET# ESC= ESC= ESC?ESC ESC# EFR= EFR= EFR?EFR EFR# CTD= CTD= CTD?CTD CTD# CID= CID= CID?CID CID# MGC= MGC= MGC? MGC=FFF.FFFFDDDMGC? DD.DDDGYRMVSPP MGC CST= CST?CST CST# SSI= SSI= SSI?SSI SSI# CAS= CAS?CAS CAS# RNE? CAE=CAE? CAE IEP= IEP#EBN? RSL? BER? RED?LRS= LRS= LRS? FCS=BootXXXX FCS?FPGA=ZZZZ TMP? EID? EID=abbbcdefghHardware Bytes HRV? FLT? DNI= DNI= DNI?DNI DNI# ITS= ITS= ITS?ITS ITS# OUS? OUS=xxxxxxFSW= Appendix A. Cable Drawings CDM-600 Satellite Modem Revision Cable Drawings MN/CDM600.IOM MN/CDM600.IOM Appendix B. Eb/No Measurement Example Bpsk Qpsk PSK This page is intentionally blank Appendix C. Fast Activation Procedure Activation Procedure Serial Number View currently installed features Enter Access Codes Appendix D. ODU Operation Functions are Menu Trees Modem Main Menu Enable 2 ODU3 ODU 4 ODU,ENABLE,11 5 ODU,ENABLE,11ODU,ENABLE,11 CSAT#2 ODU,ENABLE,STANDALONE Csat Redundancy BOX 6 ODU,ENABLE,11,CSAT#1 ConfigurationAMP=OFF MUTE=UNMUTED Slope TX Slope MODE=MANUAL MANUAL,CAL SLOPE=0.3 RX Slope MODE=MANUAL MANUAL,CAL SLOPE=0.2 FAULT-LOGIC LNA StateCalibrate LNA-CURRENT Misc COLD-START=DISABLE XREF=NO REF-ADJUST=087 RTC=OFF 13 ODU,ENABLE,11,CSAT#1 ODU,ENABLE,11,CSAT#2 Monitor ODU,ENABLE,STANDALONE Csat Alarms CURRENT-ALARMS STORED-ALARMS Current Status TX RX = OK POWER-SUPPLY 21 ODU,ENABLE,11,CSAT#1 ODU,ENABLE,11,CSAT#2 Information ODU,ENABLE,STANDALONE CsatReading Stored Faults Please Wait Stored Alarms CLEAR-ALL no NO,YES Info Txoff AmpoffInfo Rxon Unmuted ENABLE,STANDALONE KST 28 ODU,ENABLE,STANDALONE KST Configuration27 ODU 29 ODU,ENABLE,STANDALONE KST,CONFIG 30 ODU,ENABLE,STANDALONE KST,CONFIG31 ODU,ENABLE,STANDALONE KST,CONFIG Misc 32 ODU,ENABLE,STANDALONE KST Information 33 ODU,ENABLE,STANDALONE KST,INFO Model34 ODU,ENABLE,STANDALONE KST,INFO TX+RX-PARAM 35 ODU,ENABLE,STANDALONE KST,INFO Misc 36 ODU,ENABLE,STANDALONE KST,INFO Numbers 37 ODU,ENABLE,STANDALONE KST Alarms Index Statistics Utilities MN/CDM600.IOM CDM-600 Comtech EF Data is an ISO 9001 Registered Company New Features/Changes Description of D&I with ESC and Aupc Aupc MN/CDM600.AA7 TSR= Metric Conversions 480 333 2200 Phone 480 333 2161 FAX