DMD15/DMD15L
Page
 Latest Software Revision Confirmation
 Warranty Replacement and Adjustment
Warranty and Service
Warranty Period
Warranty Coverage Limitations
 Radyne, Inc
Warranty Repair Return Procedure
Non-Warranty Repair
 Revision Date Reason for Change Level
TM051 Record of Revisions
 DMD15/DMD15L IBS/IDR Satellite Modem TM051 Rev
 Table of Contents
 Operation
 DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents
 User Interfaces
 Electrical Interfaces
 Appendices
 Reed-Solomon Codec
Description
DMD15/DMD15L Available Options
Internal High Stability
 5 8PSK Modulation
Internal Engineering Service Channel ESC
Turbo Codec
Drop and Insert D&I
 Customized Options
Back Panel Options
Page
 Unpacking
Installation Requirements
Removal and Assembly
 Mounting Considerations
DMD15/DMD15L Initial Configuration Check
 Qpsk
Initial Power-Up
Modulator Checkout
Modulator
 Terminal Setup
 Theory of Operation
DMD15/DMD15L Functional Block Diagram
 Operation DMD15/DMD15L IBS/IDR Satellite Modem
 Universal Interface Module UIM
Universal Interface Modules UIM Dip Switch Settings
 G.703 Interface
Synchronous Interface
 Form-C Contacts
Open Collector Faults
Terrestrial Loopback
Modem Status
 Loopback Functional Block Diagram
 Loopback Functional Block Diagram
 Tx Baseband Processing
Baseband Processor Card
Baseband Processing
 Asynchronous Serial Port #1
Rx Baseband Processing
Clock Selection
Monitor & Control M&C Subsystem
 Program Flash ROM
Watchdog Timer
Front Panel Interface
Clock
 SCT Serial Clock Transmit
Demodulator
11 DMD15/DMD15L Clocking Options
Scte Serial Clock Transmit External
 Transmit Timing
IDI Insert Data
SCR Serial Clock Receive
EXT if REF External if Reference
 Receive
Loop Timing
Transmit RS-422 or V.35 Interface
14.2 G.703 Interface or Asymmetrical Data Rates
 Looped Modems
 Insert Only
Drop Only
 PCM-31
Mode Selection
PCM-30
PCM-30C
 SLC-96
PCM-31C
16.5 T1-D4/T1-D4-S
16.6 T1-ESF/ T1-ESF-S
 Map Copy
Drop and Insert Mapping
SATCh TS Enter to Edit
Example
 RX Active RX Edit
TX Edit TX Active
RX Edit RX Active
TX Active TX Edit
 Interleaving
Reed-Solomon Codec Refer to Figures 3-14, 3-15, and Table
Operation in the DMD15/DMD15L
Reed-Solomon Code Rate
 15. Reed-Solomon Decoder Functional Block Diagram
 8PSK
19 DMD15 Automatic Uplink Power Control Aupc Operation
IDR
 Function Description
Aupc Functions
 Kbps Baud Rate Example for Standard IBS Enhanced Mode
 DMD15/DMD15L IBS/IDR Satellite ModemOperation
 ESC Backward Alarms
Standard IBS Mode
Asynchronous Multiplexer Mode
 Reacquisition
To Disable the ESC Backward Alarms
 16. Reacquisition flow in the DMD15/DMD15L
 DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 Rev
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 Front Panel User Interface
User Interfaces
 Numeric Keypad
Edit Mode Key Functions Front Panel Only
LCD Front Panel Display
Cursor Control Arrow Keys
 LED
Front Panel LED Indicators
Parameter Setup
 Main Menus
Modulator Demodulator Interface Monitor Alarms System Test
Mode IDR, IBS, Closed Net, Drop & Insert
Front Panel Control Screen Menus
 IBS Mode
 QPSK, BPSK, OQPSK, 8PSK, 16QAM
 Allows the user to select the framing type
Used with IDR, IBS, or Asynchronous Interface Only
 Strap Code Refer to Strap Code Guide, .3, Table
Demodulator Menu Options and Parameters
 ReAcq Sweep 32000 Hz
Swp Delay 900.0 sec
Demodulation
Swp Bound ±0 32 kHz
 CSC
 ESC CH#2
Interface Menu Options and Parameters
ESC CH#1
 SATCh TS
Tx D&I menu Drop Mode Enable, Disable
Time Mark Enable, Disable
 T1E1 Frm Src Internal, External
Rx D&I menu Insert Mode Enable, Disable
Async menu ES Mode Normal, Enhanced option
Clk Polarity Normal, Inverted
 Aupc Menu Options and Parameters
 Remote CL Action
Tracking Rate
Local CL Action
HOLD, NOMINAL, Maximum
 Cber
Monitor Menu Options and Parameters
OFF, on
SER
 Alarms Menu Options and Parameters
 SigLoss Mask Pass/Fail, No/Yes
CompClk Mask Pass/Fail, No/Yes
TxSynth Mask Pass/Fail, No/Yes
Major Rx menu RxuProc Mask Pass/Fail, No/Yes
 Indicates status of the Tx Reed-Solomon Fifo
RS Fifo
 User InterfacesDMD15/DMD15L IBS/IDR Satellite Modem
 RAM/ROM
Indicates M&C memory fault
 RxIFSynLock RxOSPLLLock Buf Clk Lock
IBS BER
 UProc Ext Ref Lock Backward Alr menu
 Hhmmss
System Menu Options and Parameters
YY MM DD
 Test Menu Options and Parameters
 DMD15/DMD15L Strap Codes
 DEC
DMD15/DMD15L Strap Codes Data
Reed Code Rate
Insert
 1544
 104 576 16/15
 None CNT
Sample DMD15/DMD15L Applications
 Case 1 IDR 8.448 Mbps, 3/4 Rate Viterbi
Operational Case Examples
IBS
Closed Network
 Case 2 IBS 1.544 Mbps, 3/4 Rate Viterbi
Demodulator Method
 Case 4 Loop Timing Example Method
Case 3 Closed Network, 3/4 Rate Viterbi, IBS Overhead
 Data Rate
Configuring the DMD15/DMD15L for Drop and Insert
 Insert Terrestrial Frame Source
Operational Mode
Terrestrial Framing Drop Mode/Insert Mode
 4 D&I Sample Configurations and D&I Clock Setup Options
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 Transmit Trunk and Receive Trunk
 Single Trunk
 D&I Maps and Map Editing
 ROM
D&I ROM Maps T1/E1 Time Slot
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 Modem Setup for Terminal Mode
Terminal Mode Control
Modem Terminal Mode Control
 Byte Count
Protocol Structure
Protocol Wrapper
Sync
 Frame Sequence Number
Byte Field Data Content Running Checksum
Source ID
Destination ID
 Frame Description and Bus Handshaking
 Response Opcodes Response Opcode Description
DMD15 Response Error Code Descriptions
Global Response Operational Codes
 Mparmreedsolomonerror
Mparmextrefsourceerror
Mparmmodulationtypeerror
Mparmconvencodererror
 Mparmsummaryfaulterror
Mparmsymbolrateerror
Mparmnotimplementederror
Mparmtransfertypeerror
 Dparmspectrumerror
Dparmdifferentialdecodererror
Dparmdescramblercontrolerror
Dparmdescramblertypeerror
 Collision Avoidance
 Directly-Addressed Equipment Multi-Drop Override ID
 Flow Control and Task Processing
Software Compatibility
 Rllp Summary
 FSN
Remote Port Packet Structure
Sync Count SRC Dest FSN Opcode Data Checksum Addr Bytes
DEST. ID
 Command Opcode
3 DMD15/DMD15L Opcode Command Set
Modem Command Set
 Command
 User InterfacesDMD15/DMD15L IBS/IDR Satellite Modem
 Detailed Command Descriptions 4.9.5.1 DMD15/DMD15L Modulator
 = INTELSAT, 1 = EUTELSAT, 2 = Closed NET1
Configuration Bytes
Query Response
 T1 ESF S
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 Status Bytes
 Alarm
 Online Flag
 Opcode 240Bh Query a Modulator’s Status
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 Opcode 2405h Query a modulator’s latched alarms
 Opcode 2601h Command a modulator’s configuration
 T1 ESF S
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 Satellite
 Opcode 2606h Command a modulators modulation type
 Opcode 2618h Command a modulators baseband loopback
 Opcode 262Ah Command Aupc Remote Enable
 5.2 DMD15/DMD15L Demodulator
 T1 ESF S
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 Unsigned Binary Value, 0-99, Implied Decimal Point
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 Query Response
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 Bits 4 7 = Spares
 Opcode 2406h Query a demodulator’s latched alarms
 Query Response
 Bit 4 = E1 FAS alarm received = Received
 T1 ESF S
 User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 Opcode 2A0Dh Command a demodulator’s descrambler control
 Opcode 2A15h Command a demodulator’s T1E1 frame source
 Modem Queries & Commands
 Opcode 2407h Query a modems latched alarms
 Query Response
 DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
 Opcode 240Fh Query date Query Response
Opcode 240Eh Query time Query Response
 Opcode 2C05h Command set date
Opcode 2C04h Command set time
 102
 DMD15/DMD15L G.703 Interface Module w/ESC
DMD15/DMD15L Connections
 DC Power Input Module
Power Inputs
AC Power Input Module
 DDO J4
TX J1
RX J2
SD J3
 Sync Data J8
 Async J9
 Prompt C
S6 AGC Out/Prompt C Switch Positions
Status J11
 Remote J13
S6 Ground/Deferred C Switch Positions AGC Out
Terminal J12
 ESC 8K Data J15
 ESC Voice J16
ESC Alarms J17
 Switch J18
 MOD FLT
Escaud RX 1A
Escaud RX 2A
TXD-A BWI
 TX-B BWI
Sync TT-B
DDO-B RT-B
IDO-B RD-B
 Sync RS-B
Sync DM-B
Sync CS-B
RXO-B
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 DMD15/DMD15L Fault Philosophy
Periodic Maintenance
Troubleshooting
 Latched Alarms
Alarm Masks
Active Alarms 6.2.2.1 Major Alarms
Minor Alarms
 TM051 Rev
 Interpreting the Matrices
IBS Fault Conditions and Actions
DMD15/DMD15L TX Fault Matrix
 Fault Detected From Satellite Across Interface E
 TM051 Rev
 FEC
Modulator Specifications
Demodulator Specifications
 DMD15/DMD15L Drop and Insert Optional
Plesiochronous Buffer
Monitor and Control
 Physical
Terrestrial Interfaces
Universal Interface
Environmental
 DMD15 Data Rate Limits
 BER
10 DMD15 BER Specifications
IBS IDR
 10-6 10-7 10-8
 10-6 10.5 dB 10-7 10.8 dB 10.4 dB 10-8 11.0 dB 10.7 dB
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 Valid Values for k
Appendix a Reed-Solomon Codes
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 Amsl
ADC
AGC
AIS
 DTE
DAC
DCE
Dpll
 Iess
Hssi
IBS
Ieee
 PLL
Mfas
MIB
Nvram
 Sync
RAM
ROM
SEQ
 8PSK
Y Z
Misc
16QAM