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DMD15/DMD15L

IBS/IDR Universal

Satellite Modem

Installation and Operation Manual

TM051 - Rev. 5.8

- NOTICE -

2005, Radyne, Inc. This manual may not in

whole or in part be copied, reproduced,

translated or reduced to any electronic or

magnetic storage medium without the written

consent of a duly authorized officer of Radyne,

Inc.

Radyne, Inc.

•

3138 E. Elwood St.

•

Phoenix, AZ 85034

•

(602) 437-9620

•

Fax: (602) 437-4811

Summary of Contents for DMD15

Page 1: ...OTICE 2005 Radyne Inc This manual may not in whole or in part be copied reproduced translated or reduced to any electronic or magnetic storage medium without the written consent of a duly authorized o...

Page 2: ......

Page 3: ...sized packets The remote M C MUST make use of the non volatile count value to index to the start of the Volatile Section If the remote M C is not aware of the newly added features to the product it s...

Page 4: ...neglect failure to use products under normal operating conditions failure to use products according to any operating instructions provided by Radyne Inc lack of routine care and maintenance as indicat...

Page 5: ...riting or by calling Radyne Inc 3138 E Elwood St Phoenix Arizona 85034 USA ATTN Customer Support Phone 602 437 9620 Fax 602 437 4811 Any product returned to Radyne Inc for examination must be sent pre...

Page 6: ...face Settings updated Specifications Section 2 1 9 16 96 Added DMD15 DMD15L Terminal Screens Appendix C added Modem Loopback Figures expanded Principles of Operation Section added IBS Conditions and F...

Page 7: ...DMD15 DMD15L IBS IDR Satellite Modem TM051 Rev 5 8 vi...

Page 8: ..._______________________ 1 2 1 1 9 Earth Station to Earth Station ES ES Communications ________________ 1 2 1 1 10 Analog AGC Voltage ___________________________________________ 1 2 1 1 11 Internal Eng...

Page 9: ...3 9 1 Asynchronous Serial Port 1 ______________________________________ 3 9 3 9 2 Serial Port 2 __________________________________________________ 3 9 3 9 3 Serial Port 3 ____________________________...

Page 10: ..._____________________ 3 16 3 16 2 PCM 30C ___________________________________________________ 3 16 3 16 3 PCM 31 ____________________________________________________ 3 16 3 16 4 PCM 31C ______________...

Page 11: ...__________________________ 4 14 4 3 6 Monitor Menu Options and Parameters _____________________________ 4 16 4 3 7 Alarms Menu Options and Parameters _____________________________ 4 17 4 3 8 System Me...

Page 12: ...1 __________________________________________________ 5 6 5 13 TERMINAL J12 ________________________________________________ 5 7 5 14 REMOTE J13 _________________________________________________ 5 7 5...

Page 13: ...nal ___________________________ 7 2 7 5 Terrestrial Interfaces ______________________________________________ 7 3 7 6 Universal Interface _______________________________________________ 7 3 7 7 Enviro...

Page 14: ...ny data rate is provided over the range of 9 6 Kbps to 10 Mbps in 1 bps steps For applications requiring system redundancy the DMD15 DMD15L Modem may be used with the Radyne Inc RCS11 1 1 Redundancy S...

Page 15: ...The 16QAM option can be added by installing 2 ICs into existing sockets 1 1 8 Sequential Decoding The DMD15 DMD15L can be equipped with a sequential decoding option that can be installed as an add on...

Page 16: ...Interface Module Synchronous Interface Module These Interface Modules are available with AC or DC Power Input Modules and the following Transmit and Receive schemes IF Transmit and Receive L Band Tran...

Page 17: ......

Page 18: ...is under any circumstances Before initially applying power to the unit it is a good idea to disconnect the transmit output from the operating ground station equipment This is especially true if the cu...

Page 19: ...tput signal integrity and proper receive operation Do not mount the DMD15 DMD15L in an unprotected outdoor location where there is direct contact with rain snow wind or sun The modem is designed for i...

Page 20: ...ssume that the DMD15 DMD15L is installed in a suitable location with prime AC power and supporting equipment available 2 5 1 Initial Power Up Before initial power up of the DMD15 DMD15L it is a good i...

Page 21: ...ng full screen access to all of the modem s parameters but requires a separate terminal or computer running a Terminal Program The unit is placed into terminal mode by setting two options via the Fron...

Page 22: ...ections Universal Interface Baseband Processing and Universal Modem 3 1 DMD15 DMD15L Functional Block Diagram Figures 3 1a through 3 1c represent the DMD15 DMD15L Functional Blocks The modem is shown...

Page 23: ...5L IBS IDR Satellite Modem 3 2 TM051 Rev 5 8 Figure 3 1b Alternate 1 DMD15 DMD15L Universal Satellite Modem Functional Block Diagram Figure 3 1c Alternate 2 DMD15 DMD15L Universal Satellite Modem Func...

Page 24: ...J3 J8 for Terrestrial Data and Clock to the Modem The UIM also contains a Connection Port for an Asynchronous Data Channel J9 for use in Earth Station to Earth Station ES ES communications Additionall...

Page 25: ...03 Receiver The G 703 Receiver recovers a clock from the data stream converts the clock and data to an RS 422 balanced format and routes the clock and data to the BB Processor The reverse process is p...

Page 26: ...ransmission to the satellite providing a far end loopback Tx Rx Loopback provides both loopbacks simultaneously Refer to Figures 3 4 through 3 6 for loopback functional block diagrams 3 7 Modem Status...

Page 27: ...Operation DMD15 DMD15L IBS IDR Satellite Modem 3 6 TM051 Rev 5 8 Figure 3 4 Loopback Functional Block Diagram...

Page 28: ...DMD15 DMD15L IBS IDR Satellite Modem Operation TM051 Rev 5 8 3 7 Figure 3 5 Loopback Functional Block Diagram Figure 3 6 Loopback Functional Block Diagram...

Page 29: ...e Tx Data and Clock enters the Baseband Processor passes through a Rate Adapting FIFO and enters the Framer Drop Processor In Closed Net Mode the data passes through the framer unaltered In IDR IBS an...

Page 30: ...is the M C Subsystem The M C contains a high performance Motorola 68302 Microprocessor and is responsible for overall command and control of modem functions The M C is constantly monitoring all subsys...

Page 31: ...AM Modulator Phase Lock Receiver Convolutional Encoder Viterbi Decoder sequential decoding option Differential Encoder Decoder and a V 35 Scrambler Descrambler 3 10 1 Modulator Processed baseband data...

Page 32: ...CTE is sometimes referred to as Tx Terrestrial Timing and for Synchronous Interfaces such as RS 422 SCTE is sometimes referred to as TT Terminal Timing 3 11 2 SCT Serial Clock Transmit This clock is a...

Page 33: ...by the Modulator Clock The Modulator Clock and Phase Locked Loop PLL in conjunction with the Dejitter FIFO reduces the input jitter Jitter reduction exceeds the jitter transfer specified in CCITT G 82...

Page 34: ...user to select the terrestrial T1 or E1 timeslots that are to be dropped off for transmission over the link in the specified satellite channels The Insert function allows the user to select the T1 or...

Page 35: ...Operation DMD15 DMD15L IBS IDR Satellite Modem 3 14 TM051 Rev 5 8 Figure 3 8 Looped Modems Figure 3 9 Looped Modems with Separate D I Trunks...

Page 36: ...s available it should be input via the Insert Data In Port The Terrestrial Data is buffered inside the Modem The RX Baseband Processor inserts satellite data into the selected timeslots in the G 704 F...

Page 37: ...he user In PCM 30 mode the user may not select timeslot 16 as a Drop or Insert Timeslot 3 16 2 PCM 30C The PCM 30C Mode of Operation supports an E1 Interface with Multiframe Alignment MFAS and Channel...

Page 38: ...n timeslots to insert where n 1 2 3 4 5 6 8 10 12 15 16 20 24 or 30 In the DMD15 DMD15L Robbed Bit Signaling RBS is handled without any need for operator intervention and is transparent to the user 3...

Page 39: ...For a modem w Drop Insert enabled at a data rate of 256 with timeslots assigned 1 1 2 2 etc At a data rate of 256 the modem will allow 4 channels to assign timeslots to Under the Tx Menu assign the t...

Page 40: ...the Receive Side 1 With Rx Side Channels configured as follows CH1 to TS1 CH2 to TS2 CH3 to TS3 and CH4 to TS4 2 After the timeslots are assigned properly scroll to the Mapping Menu and use the above...

Page 41: ...nt to the modulator where it is convolutionally encoded modulated and transmitted to the satellite When the signal is received and demodulated by the Receiving Modem it is fed to a Viterbi Decoder for...

Page 42: ...DMD15 DMD15L IBS IDR Satellite Modem Operation TM051 Rev 5 8 3 21 Figure 3 15 Reed Solomon Decoder Functional Block Diagram...

Page 43: ...896 0 0899 0 0899 4 4 4 4 9 7 2 2 8PSK 1544 2048 6312 8448 219 201 9 219 201 9 219 201 9 219 201 9 0 0896 0 0896 0 0896 0 0896 8 8 8 8 18 13 4 3 NOTES 1 n code length k information symbols and t symbo...

Page 44: ...irections simultaneously Modem A is transmitting to modem B under normal conditions and modem B has a receive Eb No of 7 5 dB Modem A has been set to an AUPC Eb No on the Front Panel of 7 5 dB and is...

Page 45: ...hanced Async IBS Async the Baud Rate is selectable but Data Rate is limited The maximum Baud Rate is 19 200 bps for IBS Async Two software controlled modes are designed into the card to best utilize t...

Page 46: ...Operation TM051 Rev 5 8 3 25 896 19200 960 19200 1024 19200 1088 19200 1152 19200 1216 19200 1280 19200 1344 19200 1408 19200 1472 19200 1536 19200 1600 19200 1664 19200 1728 19200 1792 19200 1856 19...

Page 47: ...ard IBS mode are not used an Enhanced Multiplexer Mode has been implemented that can be engaged under software control Since this mode changes the use of many of the framed non data bits this mode is...

Page 48: ...ndications are to be disabled connect the following pins of the ESC ALARMS Port Connect Pins 1 10 11 22 and 23 connect all together Pin 1 is ground and Pins 10 11 22 and 23 are the inputs of Backward...

Page 49: ...reacquisition sweep limits to acquire signal Reacquisition limits OPCode 0x2A2F 0 32000 Hz Sweep Delay 0 Normal operation Start Delay Timer Timer Expired Go back to normal sweep limits to acquire sig...

Page 50: ...DMD15 DMD15L IBS IDR Satellite Modem Operation TM051 Rev 5 8 3 29...

Page 51: ......

Page 52: ...labeling of the front panel The front panel is divided into four functional areas the LCD Front Panel Display the Cursor Control Arrow Keys the Numeric Keypad and the Front Panel LED Indicators each d...

Page 53: ...c Keypad A 10 Key Numeric Keypad with 2 additional keys for the Enter and Clear function allows the entry of data into the system Table 4 2 describes the functions available at the Front Panel Table 4...

Page 54: ...inor Alarm Yellow Indicates that a Receive Warning Condition exists Test Mode Yellow Indicates that the receiver is involved in a current Test Mode activity Modulator LED Indicators Transmit ON Green...

Page 55: ...IDR IBS Closed Net Drop Insert Used with IDR or IBS Interface Only The Mode Command sets a number of parameters within the modem to meet a set specification The purpose is to eliminate keystrokes and...

Page 56: ...Type V 35 Spectrum Mask Intelsat For Data Rates 1 544 Framing Type 1 15 IBS Scrambler Type IESS 309 Spectrum Mask Intelsat IBS Mode IESS 309 For Data Rates 2048 Framing Type 1 15 IBS Scrambler Type IE...

Page 57: ...e output power level setting crosses this threshold the modulator may glitch and undershoot the output momentarily Carrier Ctrl On Off The DMD15 transmitter will turn off the carrier output automatica...

Page 58: ...Sel None V 35 IESS V 35 CITT V 35 EF IBS CCITT V 35FC OM73 V 35EF_RS TPC SCRAMBLER Turbo Codec Allows the user to select the scrambler type Scrmbl Ctrl Allows the user to enable or disable scrambler o...

Page 59: ...ration and cannot be changed while the unit is in the given mode of operation IDR Mode IESS 308 For Data rates 1 544 2 048 6 312 8 448 Mbps Framing Type 96 Kbps IDR Descrambler type V 35 Spectrum Mask...

Page 60: ...8PSK 16QAM Allows the user to select the demodulation type Spectrl Msk Intelsat Allows the user to set the spectral shape of Tx Data Filter Swp Bound 0 32 kHz Allows the user to set the acquisition ra...

Page 61: ...Differential Decoder Having the decoder enabled ensures proper phase lock EF Mode is a special differential decoder mode that allows compatibility with certain modems when configured in QPSK modulati...

Page 62: ...y of a Tx Circuit Identifier Circuits can be given up to an 11 Character alphanumeric identity such as LINK1 Tx Type G 703 V 35 RS 232 RS 422 Allows the user to select the Transmit Type Tx Clock SCTE...

Page 63: ...er has finished editing the Tx Edit map it must be copied to the Tx Active map before it can be used by the modem Time Mark Enable Disable Allows the user to enable or disable the Time Mark Transfer T...

Page 64: ...being used by the modem For a more detailed description of this function see Section 4 6 4 SATCh TS Allows the user to edit the Tx Edit Map to specify the terrestrial slots that will be dropped into...

Page 65: ...mit Power The nominal Transmit Power is the setting that will be used when the remote modem indicates that its receiver has lost lock and commands a change to the setting indicated in the REMOTE CL AC...

Page 66: ...te in 0 5 dB steps The resulting command rate is 1 command every minute to 1 command every five seconds Local CL Action HOLD NOMINAL MAXIMUM Allows the user to set the Transmit Power Setting to be use...

Page 67: ...e the Transmit 2047 Pattern Test Mode of the remote modem Remote AUPC Monitor The REMOTE AUPC MONITOR Menu contains the remote monitor status for the AUPC Function Remote 2047 BER Reports the BER meas...

Page 68: ...cated inside the modem Buffer Displays the status of the Doppler Buffer from 0 to 100 Press Clr to Center Buffer Causes Doppler Buffer to re center BER Exponent 6 9 Allows the user to set the time bas...

Page 69: ...at the demod is unable to lock to a signal MfrSync Mask Pass Fail No Yes Indicates that the Framing Unit is unable to find the expected framing pattern FrmSync Mask Pass Fail No Yes Indicates that the...

Page 70: ...ss Fail No Yes Indicates if the Circular Redundancy Check is passing in PCM30C and PCM31C Mode RS FIFO Pass Fail No Yes Indicates status of the Tx Reed Solomon FIFO FllBack Pass Fail No Yes Indicates...

Page 71: ...Pass Fail No Yes CRC Lock Mask Pass Fail No Yes T1 Signaling Pass Fail No Yes Rx RS Faults menu Dec Lock Mask Pass Fail No Yes Indicates status of the Reed Solomon Decoder Lock Dintlvr Mask Pass Fail...

Page 72: ...battery is low RAM ROM Pass Fail No Yes Indicates M C memory fault M C uProc Pass Fail No Yes Indicates M C Microprocessor hardware failure UIO Present Pass Fail No Yes Indicates absence of Universal...

Page 73: ...ator is active Latched Alrm menu The following alarms are latched in order to catch intermittent failures Note Refer to Section 4 2 7 Active Alrms menu for an explanation of these Menu Options and Par...

Page 74: ...ck Backward Alr menu Backward alarms are alarms that are fed back to or received from the other end of the satellite link In IBS Mode including Drop Insert Backward Alarm 1 is the only one used It wou...

Page 75: ...date Time HH MM SS Allows the user to enter the current time Backlight menu Level High Low Allows the user to enter the backlight intensity level Timeout 00 99 Allows the user to enter the length of...

Page 76: ...mote Port Baud Rate 4 3 9 Test Menu Options and Parameters 2047 Test None Tx Rx Tx Rx Allows the user to enable or disable the 2047 Pattern Test Tx enables the transmit pattern generator Rx enables th...

Page 77: ...to the Tx data input to the Modem Card Tx RX BB Enables both Carrier CW Causes the Modulator to output a pure carrier Dual Causes a double sideband output Offset Causes a single sideband output Normal...

Page 78: ...PSK 32 2048 96K 3 4 IDR V 35 IESS DISABLE DISABLE QPSK 64 6312 96K 3 4 IDR V 35 IESS DISABLE DISABLE QPSK 128 8448 96K 3 4 IDR V 35 IESS DISABLE DISABLE QPSK 24 56 1 1 2 CNT V 35 IESS DISABLE DISABLE...

Page 79: ...IBS DISABLE DISABLE QPSK 52 1920 16 15 3 4 IBS IBS DISABLE DISABLE QPSK 69 6312 1 3 4 CNT V 35 IESS DISABLE DISABLE QPSK 70 8448 1 3 4 CNT V 35 IESS DISABLE DISABLE QPSK 73 3152 1 1 2 CNT V 35 IESS D...

Page 80: ...36 16 15 3 4 IBS IBS DISABLE DISABLE QPSK 30 1088 16 15 1 2 IBS IBS DISABLE DISABLE QPSK 39 1088 16 15 3 4 IBS IBS DISABLE DISABLE QPSK 43 1152 16 15 1 2 IBS IBS DISABLE DISABLE QPSK 46 1152 16 15 3 4...

Page 81: ...1 1 2 CNT V 35 IESS DISABLE DISABLE QPSK 141 3088 1 3 4 CNT V 35 IESS DISABLE DISABLE QPSK 176 4000 1 1 2 CNT V 35 IESS DISABLE DISABLE QPSK 116 4000 1 3 4 CNT V 35 IESS DISABLE DISABLE QPSK 60 1344 1...

Page 82: ...e FEC 4 5 1 Operational Case Examples Note For best results always begin setup by setting the data rate to 512 Kbps This data rate is applicable for all modes and as such provides a convenient launch...

Page 83: ...with the Data Rate 512 Kbps Modulator Method 1 Set Framing to 1 15 Set mode to IBS Under Mod Data menu Set code rate to 3 4 VIT Set data rate for 1544000 Under Interface Menu Set Interface type Set Tx...

Page 84: ...Mod IF menu Set desired Tx frequency and power level Turn IF ON Method 2 Set Mod strap code to 101 Under Interface Menu Set Interface type Set Tx clock selection Under Mod IF menu Set desired Tx frequ...

Page 85: ...ode such as T1 ESF with the mod data rate set to 1920000 bps a valid E1 D I rate but not a valid T1 rate will result in the error message INVALID DROP MODE and the selection will not be allowed Trying...

Page 86: ...ot mappings in the following manner The selection of T1 D4 T1 ESF or SLC 96 type terrestrial framing format limits the terrestrial timeslots to values from 1 24 The selection of PCM 30 or PCM 30C type...

Page 87: ...Frame Source selection should be made prior to attempting to change the Buffer Clock In most instances the Insert Terrestrial Frame Source selection will be set to External and the Buffer Clock will...

Page 88: ...Under Interface Under RX Setup Set Rx Type according to your hardware configuration Set Buff Size to desired depth Under Rx D I Set Insert Mode T1 D4 Set T1 E1 Frm Src External Use SATCh TS edit capa...

Page 89: ...to desired depth Under Rx D I Set Insert Mode T1 D4 Set T1 E1 Frm Src External Use SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots For Satellite Cha...

Page 90: ...DMD15 DMD15L IBS IDR Satellite Modem User Interfaces TM051 Rev 5 8 4 39 Figure 4 4 Single Trunk Figure 4 5 Rx Only With Trunk Figure 4 6 Rx Only No Trunk...

Page 91: ...the modem and remain unchanged after a power down Table 4 5 D I Multiplexer Map Locations Used Data Rate Kbps Map Locations Used n 1 2 4 8 16 24 30 64 1 128 1 2 256 1 4 384 1 6 512 1 8 768 1 12 1024 1...

Page 92: ...the Rx Active Map Two additional maps exist the Tx Edit Map and the Rx Edit Map The Edit Maps are the buffer areas that are used when creating or modifying a map through the modem s LCD when editing...

Page 93: ...from and or inserted into the first eight time slots of the T1 or E1 frame The Multiplexer would know to look only at the first eight entries in the Active map s and would ignore the other 22 entries...

Page 94: ...y or data rate This type of input is followed by pressing the Enter or carriage return key An input can be aborted at any time by pressing the ESC key Invalid input keys cause an error message to be d...

Page 95: ...usually reserved for the M C computer 4 9 1 2 Protocol Wrapper The Radyne COMMSPEC is byte oriented with the Least Significant Bit LSB issued first Each data byte is conveyed as mark space information...

Page 96: ...to perform a specific function or series of functions Acknowledgment and error codes are returned in this field 1 Byte for the DMD5000 protocol and 2 Bytes for the DMD15 protocol DATA The Data field c...

Page 97: ...luded in every message packet and increments sequentially When the M C computer or bus linked equipment initiates a message it assigns the FSN as a tag for error control and handshaking A different FS...

Page 98: ...ted as valid The device that receives the valid message then exchanges the SOURCE ID with the DESTINATION ID sets the OPCODE to zero in order to indicate that a good message was received and returns t...

Page 99: ...ROR 0x0414 MPARM_TERRLOOPBACK_ERROR 0x0415 MPARM_BASELOOPBACK_ERROR 0x0416 MPARM_CLOCKCONTROL_ERROR 0x0417 MPARM_CLOCKPOLARITY_ERROR 0x0418 MPARM_FRAMING_ERROR 0x0419 MPARM_DROPMODE_ERROR 0x041A MPARM...

Page 100: ...ARM_AUPCREMOTEBBLOOPBACK_ERROR 0x043A MPARM_AUPCREMOTE2047_ERROR 0x043B MPARM_AUPCEBNO_ERROR 0x043C MPARM_AUPCMINPOWER_ERROR 0x043D MPARM_AUPCMAXPOWER_ERROR 0x043E MPARM_AUPCNOMINALPOWER_ERROR 0x043F...

Page 101: ...BEREXPONENT_ERROR 0x0619 DPARM_CIRCUITID_ERROR 0x061A DPARM_TERRLOOPBACK_ERROR 0x061B DPARM_BASELOOPBACK_ERROR 0x061C DPARM_IFLOOPBACK_ERROR 0x061D DPARM_INTERFACETYPE_ERROR 0x061E DPARM_INTERFACENOTP...

Page 102: ...el both will attempt to respond to the M C computer when the computer generates a multi drop override ID of 22 If their actual setup parameters status or internal timing differs they will both attempt...

Page 103: ...M N Switch 10 DMD15 Modulator 20 DMD15 Demodulator 21 DMD15 Modem 22 DVB3000 3030 Video Modulator DM240 23 RCS20 M N Switch 24 RCS10 M N Switch 25 RCS11 1 1 Switch 26 Reserved for future equipment ty...

Page 104: ...pment with different revision software they may respond with two different sized packets The remote M C MUST make use of the non volatile count value to index to the start of the Volatile Section If t...

Page 105: ...hronization the IOPT keeps track of error laden packets and packets intended for other equipment for the duration of each received packet Once the packet is complete the IOPT invokes an I 0 wait state...

Page 106: ...e the message is to be sent 1 byte FSN Frame sequence number ensures correct packet acknowledgment and data transfers 1 byte OPCODE This byte identifies the message type associated with the informatio...

Page 107: ...Modem Drop Insert Map 2402h Query Modems Identification 2403h Query Modem Control Mode 2404h Query Modulator Latched Alarms 2405h Query Demodulator Latched Alarms 2406h Query Modem Latched Alarms 240...

Page 108: ...Command Modulator SCT Source 260Dh Command Modulator Drop Mode 260Eh Command Modulator Output Level 260Fh Command Modulator Reed Solomon 2610h Command Modulator Spectrum 2611h Command Modulator Operat...

Page 109: ...Transfer 2638h Command Demodulator Configuration 2A00h Command Demodulator Frequency 2A01h Command Demodulator Data Rate 2A02h Command Demodulator Strap Code 2A03h Command Demodulator Sweep Boundary 2...

Page 110: ...al EXC Source 2A23h Clear Latched Alarm 1 2A24h Clear Latched Alarm 2 2A25h Clear Latched Alarm 3 2A26h Clear Latched Alarm 4 2A2Eh Command Demod Reacquisition Sweep 2A2Fh Command Demod N K Codes 2A32...

Page 111: ...256 kHz to 10 MHz In 8 kHz increments 0 Internal 1 External 2 High stability 0 QPSK 1 BPSK 2 8PSK 3 16QAM 4 OQPSK 0 None 1 Viterbi 1 2 Rate 2 Viterbi 2 3 Rate 3 Viterbi 3 4 Rate 4 Viterbi 5 6 Rate 5 V...

Page 112: ...equal 0 for all channels 1 Frame 12 s bits equal 1 0 None or else a 1 in the following bits means force Bit 0 Backward Alarm 1 IDR and IBS Bit 1 Backward Alarm 2 IDR only Bit 2 Backward Alarm 3 IDR on...

Page 113: ...pares 0 Mask 1 Allow 11 ASCII characters 20 to 10 10 dBm to 20 dBm two s compliment 20 to 10 10 dBm to 20 dBm two s compliment 0 G703 B T1 AMI 1 G703 B T1_B8ZS 2 G703 B E1 3 G703 B T2 4 G703 U E1 5 G7...

Page 114: ...nable 2 FM Only 0 Off 1 On 0 Off 1 On 0 Off 1 On 0 Hold 1 Nominal 2 Maximum 0 Hold 1 Nominal 2 Maximum 0 0 5 dB Min 1 1 0 dB Min 2 1 5 dB Min 3 2 0 dB Min 4 2 5 dB Min 5 3 0 dB Min 6 3 5 dB Min 7 4 0...

Page 115: ...and 7 Spares Bit 0 12V alarm 1 Fail Bit 1 12V alarm 1 Fail Bit 2 5V alarm 1 Fail Bit 3 Reserved Bit 4 Battery 1 Fail Bit 5 RAM and ROM alarm flag 1 Fail Bits 6 and 7 Spares Bit 0 M C processor fault...

Page 116: ...ex 49 4 9 V 12V Implied decimal point ex 121 12 1 V 12V Implied decimal point and minus sign ex 118 11 8 V Degrees C Implied decimal point ex 490 49 0 C Not Implemented 0 Internal 1 External Bit 0 Ba...

Page 117: ...ctivity Bit 3 Tx data activity detect 1 Activity Bit 4 Terrestrial AIS Tx data AIS detect 1 AIS Fail Bit 5 Tx clock fallback 1 Fail Bits 6 and 7 Spares Bit 0 12V alarm 1 Fail Bit 1 12V alarm 1 Fail Bi...

Page 118: ...ved 1 Received Bit 7 CRC calculation error 1 Fail 0 Offline 1 Online 5V Implied decimal point ex 49 4 9 V 12V Implied decimal point ex 121 12 1 V 12V Implied decimal point and minus sign ex 118 11 8 V...

Page 119: ...l Bit 1 12V alarm 1 Fail Bit 2 5V alarm 1 Fail Bit 3 Reserved Bit 4 Battery 1 Fail Bit 5 RAM and ROM alarm flag 1 Fail Bits 6 and 7 Spares Bit 0 M C processor fault 1 Fail Bit 1 U IO card present Faul...

Page 120: ...E1 CRC enabled 1 Fail Bit 3 T1 yellow alarm received 1 Received Bit 4 E1 FAS alarm received 1 Received Bit 5 E1 MFAS alarm received Not valid in FAS mode 1 Received Bit 6 E1 CRC alarm received 1 Rece...

Page 121: ...ential 3 4 Rate 10 Sequential 5 6 Rate 11 Sequential 7 8 Rate 12 Sequential 8 9 Rate 13 Trellis 1 2 Rate 14 Trellis 2 3 Rate 15 Trellis 3 4 Rate 16 Trellis 5 6 Rate 17 Trellis 7 8 Rate 18 Trellis 8 9...

Page 122: ...Bit 0 Transmit processor Fault Bit 1 Transmit output power level Fault Bit 2 Transmit Oversample PLL lock Bit 3 Composite clock PLL lock Bit 4 IF synthesizer lock Bit 5 IDR 96 PLL lock Bit 6 RS FIFO...

Page 123: ...32 0 Disabled 1 Enabled 0 Disabled 1 Enabled Bit 0 Frame lock mask Bit 1 Multiframe lock mask Valid in E1 PCM30 and PCM30C Bit 2 CRC lock mask Valid in T1ESF and E1 CRC enabled Bit 3 T1 yellow alarm r...

Page 124: ...Singed value 50 to 200 with implied decimal point 49 4 9 dBm two s compliment 0 Disable 1 Enable Unsigned Binary 4 to 16 Inclusively Reserved Reserved 0 Disable 1 Enable Opcode 2602h Command a modula...

Page 125: ...tion for compatibility Opcode 2609h Command a modulator s carrier control 1 Carrier Control 0 Off 1 On Opcode 260Ah Command a modulator s carrier selection 1 Carrier Selection 0 Normal 1 CW 2 Dual 3 O...

Page 126: ...1 Mode 0 Closed Net 1 IDR 2 IBS 3 D I Opcode 261Ah Command a modem s external EXC clock 4 External EXC Clock Binary value 1 Hz steps 256 kHz to 10 MHz In 8 kHz increments Opcode 261Bh Command a modem...

Page 127: ...AUPC Eb No 2 AUPC Target Eb No Target Eb No at Receiver Opcode 2631h Command AUPC Minimum Power 2 AUPC Minimum Power Singed value 50 to 200 with implied decimal point 49 4 9 dBm two s compliment Opcod...

Page 128: ...on Interleaver Depth Opcode 2638h Command a modulator s Time Mark Transfer 1 1 Time Mark Transfer Enable Time Mark Transfer Pattern Length 0 Disable 1 Enable Unsigned Binary 4 to 16 Inclusively 4 9 5...

Page 129: ...e 17 Trellis 7 8 Rate 18 Trellis 8 9 Rate 19 SEQ 3 4 Rate 20 TPC 793 2D 21 TPC 495 3D 22 TPC 325 3D 0 Disable 1 Enable 0 Off 1 On 2 EF Mode Available in uncoded QPSK modulation for compatibility 0 Dis...

Page 130: ...7 test pattern lock Bit 6 External reference PLL lock Bit 7 IDR 96K PLL Lock 0 Mask 1 Allow Bit 0 Buffer clock activity detect Bit 1 External BNC activity detect reserved in RCS10 10L mode Bit 2 Rx sa...

Page 131: ...1 3 G703 B T2 4 G703 U E1 5 G703 U T2 6 G703 U E2 7 RS 422 8 V 35 9 RS 232 Bit 0 Frame lock Bit 1 Multiframe lock Valid in E1 PCM30 and PCM30C Bit 2 CRC lock Valid in T1ESF and E1 CRC enabled Bit 3 T1...

Page 132: ...eive processor fault 1 Fail Bit 1 Carrier Loss 0 pass 1 Fail Bit 2 Multiframe Sync Loss 0 pass 1 Fail Bit 3 Frame Sync Loss 0 pass 1 Fail Bit 4 IBS BER Alarm 0 pass 1 Fail Bit 5 Satellite AIS 0 pass 1...

Page 133: ...t 1 U IO card present 1 Present reserved in RCS10 10L mode Bit 2 IF card present 1 Present Bits 3 7 Spares Bit 0 Receive processor fault Alarm 1 Fail Bit 1 Carrier Loss 1 Fail Bit 2 Multiframe Sync Lo...

Page 134: ...S Bit 1 Backward Alarm 2 IDR only Bit 2 Backward Alarm 3 IDR only Bit 3 Backward Alarm 4 IDR only Bits 4 7 Reserved 0 No 1 Yes Binary value Binary value Bytes 1 2 Binary value Raw BER 896 8 96 Bytes 1...

Page 135: ...tivity detect Not Latched reserved in RCS10 10L mode Bit 2 Rx satellite clock activity detect 1 Fail Bit 3 Insert clock activity detect 1 Fail Bit 4 External reference PLL activity Not Latched reserve...

Page 136: ...ctivity detect 1 Activity Bit 3 Insert clock activity detect 1 Activity Bit 4 External reference PLL activity 1 Activity reserved in RCS10 10L mode Bit 5 High Stability reference PLL activity 1 Activi...

Page 137: ...Not Latched Bit 5 Rx 2047 test pattern lock Not Latched Bit 6 External reference PLL lock Not Latched Bit 7 IDR 96 PLL Lock 1 Fail Bit 0 12V alarm 1 Fail Bit 1 12V alarm 1 Fail Bit 2 5V alarm 1 Fail B...

Page 138: ...t 1 Multiframe lock fault Valid in E1 PCM30 and PCM30C 1 Fail Bit 2 CRC lock fault Valid in T1ESF and E1 CRC enabled 1 Fail Bit 3 T1 yellow alarm received 1 Received Bit 4 E1 FAS alarm received 1 Rece...

Page 139: ...l Bit 5 RS De Interleaver Fault 1 Fail Bit 6 RS Decoder Uncorrectable Word 1 Fail Bit 7 Summary Fault 1 Fail Bit 0 IF synthesizer lock detect Fault 1 Fail Bit 1 Rx Oversample PLL lock detect 1 Fail Bi...

Page 140: ...RS De Interleaver Fault 1 Fail Bit 6 RS Decoder Uncorrectable Word 1 Fail Bit 7 Summary Fault 1 Fail Bit 0 IF synthesizer lock detect 1 Lock Bit 1 Rx Oversample PLL lock detect 1 Lock Bit 2 Buffer cl...

Page 141: ...ial Decoder Descrambler Control 0 Closed Net 1 IDR 2 IBS 3 D I Selects the IF frequency in Hz The range is 50 MHz to 180 MHz for the 70 140 MHz type modems and 950 MHz to 1750 MHz for the L Band Modem...

Page 142: ...3 PCM 30 4 PCM 30C 5 PCM 31 6 PCM 31C 7 SLC 96 8 T1 D4 S 9 T1 ESF S 0 Internal 1 External Timeslots to insert organized by satellite channel 0 No framing 1 96K 2 1 15 3 EF AUPC 1 15 0 Stop 1 2047 test...

Page 143: ...ct Bit 3 Insert clock activity detect Bit 4 External reference PLL activity reserved in RCS10 10L mode Bit 5 High Stability reference PLL activity reserved in RCS10 10L mode Bit 6 Rx clock fallback Bi...

Page 144: ...arm received Bit 5 E1 MFAS alarm received Not valid in FAS mode Bit 6 E1 CRC alarm received Bit 7 CRC calculation error 0 Mask 1 Allow 2 255 Reed Solomon code word length 1 254 Reed Solomon message le...

Page 145: ...rbi 2 3 Rate 3 Viterbi 3 4 Rate 4 Viterbi 5 6 Rate 5 Viterbi 7 8 Rate 6 Viterbi 8 9 Rate 7 Sequential 1 2 Rate 8 Sequential 2 3 Rate 9 Sequential 3 4 Rate 10 Sequential 5 6 Rate 11 Sequential 7 8 Rate...

Page 146: ...Command a demodulator s operating mode 1 Operating Mode 0 Stop 1 2047 test Opcode 2A18h Command map summary to backward alarm 1 Map Summary To Backward Alarm 0 None 1 BK1 2 BK2 3 BK1 2 4 BK3 5 BK1 3 6...

Page 147: ...e 2A2Fh Command a demodulator s reacquisition sweep 2 Reacquisition Sweep Unsigned Binary 0 32000 Opcode 2A32h Command a demodulator s Reed Solomon N K Codes Interleaver Depth 1 1 1 Rx Reed Solomon N...

Page 148: ...il Bit 2 Buffer under 10 1 Fail Bit 3 Buffer over 90 1 Fail Bit 4 RS Decoder Lock Fault 1 Fail Bit 5 RS De Interleaver Fault 1 Fail Bit 6 RS Decoder Uncorrectable Word 1 Fail Bit 7 Summary Fault 1 Fai...

Page 149: ...fault 1 Fail Bit 1 Transmit output power level 1 Fail Bit 2 Transmit Oversample PLL lock 1 Lock Bit 3 Composite clock PLL lock 1 Lock Bit 4 IF synthesizer lock 1 Lock Bit 5 IDR 96 PLL lock 1 Lock Bit...

Page 150: ...l reference PLL lock 1 Lock Bit 7 IDR 96K PLL Lock 1 Lock Bit 0 Buffer clock activity detect 1 Activity Bit 1 External BNC activity detect 1 Activity reserved in RCS10 10L mode Bit 2 Rx satellite cloc...

Page 151: ...R Binary value 1 decimal point implied 700 7 00 Byte 3 Binary value exponent Byte 3 Binary value exponent Bit 0 Raw BER and corrected BER status 1 Valid Bit 1 Test 2047 BER status 1 Valid Bits 2 3 EbN...

Page 152: ...ve map 2 Drop edit map 3 Insert edit map 4 11 User map 1 through 8 12 19 ROM maps 1 8 Opcode 2C00h Command drop and insert map copy 1 1 From Map To Map 0 Drop active map 1 Insert active map 2 Drop edi...

Page 153: ...l Emulation 0 Adds Viewpoint 1 VT100 2 WYSE50 Opcode 2C0Ch Command Modem Baud Rate 1 Terminal Baud Rate 0 300 1 600 2 1200 3 2400 4 4800 5 9600 6 19200 7 38400 8 150 Opcode 2C0Dh Command Configuration...

Page 154: ...beled connectors located on the rear of the unit refer to Figures 5 1 through 5 5 The connector definitions below are those on the DMD15 DMD15L unit Any connection interfacing to the DMD15 DMD15L must...

Page 155: ...Module AC Input Module Figure 5 1 power is applied to the port with the supplied power cable is 10 240 VAC 50 60 Hz Integrated into the Power Input Module is the Power On Off Rocker Switch Power consu...

Page 156: ...75 Ohm Female BNC Connector The power level is programmable from 20 to 5 dBm in 0 1 dBm steps The IF Frequency can be programmed to 50 90 MHz or 100 180 MHz in 1 Hz steps If an L Band IF is ordered t...

Page 157: ...ta In EXC IDI B Input 5 10 SYNC DATA J8 The Synchronous Data Interface Port is a 37 Pin Female D Connector Refer to Table 5 2 for pinouts Table 5 2 Synchronous Data Port RS 422 RS 485 RS 232 V 35 37 P...

Page 158: ...Receive Octet A RX 0 A Output 34 Receive Octet B RX 0 B Output 17 Terminal Timing A TT A Input 35 Terminal Timing B TT B Input 1 19 20 37 Signal Ground GND 5 11 ASYNC J9 The Asynchronous Data Interfac...

Page 159: ...o Direction 5 Demod Fault NC DF NC No Direction 6 Demod Fault NO DF NO No Direction 7 Common Equipment Fault C CEF C No Direction 8 Common Equipment Fault NC CEF NC No Direction 9 Common Equipment Fau...

Page 160: ...on 3 Transmit Data TxD Output 2 Receive Data RxD Input 5 Ground GND 7 Request to Send RTS Input 8 Clear to Send CTS Input 5 14 REMOTE J13 The Remote Port is a RS 485 Connection for remote monitor and...

Page 161: ...r J15 Pin No Signal Name Signal Direction 1 Receive Octet B ESCRXO B Output 2 Receive Clock B ESCRXC B Output 3 Receive Data B ESCRXD B Output 4 No Connection NC 5 No Connection NC 6 Transmit Data A E...

Page 162: ...put Rx Data 64K B Output 8 ESCAUDTX 2A Tx Audio 2A Input Tx Clock 64K A Output 9 ESCAUDRX 2A Rx Audio 2A Output Rx Clock 64K A Output 5 17 ESC ALARMS J17 The ESC Alarms Port is a 25 Pin Female D Conne...

Page 163: ...G 703B SD A Input 2 Synchronous Data Send Data Input A SYNC SD A Input 3 IDR ESC Backward Alarm Out 1 Common ESCBWO 1C 4 G 703 Insert Data Input A G 703B IDI A Input 5 Synchronous Data Send Timing Ou...

Page 164: ...t 8 Kbps Output Data ESCTXD A Input 26 IDR ESC Receive 8 Kbps Output Clock ESCRXC A Output 27 IDR ESC Receive 8 Kbps Output Data ESCRXD A Output 28 IDR ESC Backward Alarm Output 4 Normally Closed ESCB...

Page 165: ...ESC Audio Input Channel 2B ESCAUDTX 2B Input 51 IDR ESC Audio Output Channel 1B ESCAUDRX 1B Output 52 IDR ESC Audio Output Channel 2B ESCAUDRX 2B Output 53 IDR ESC Backward Alarm Input 4 ESCBWI 4 54...

Page 166: ...8 5 13 64 Synchronous Data Data Mode Out B SYNC DM B Output 65 Synchronous Data Clear to Send B SYNC CS B Input 66 IBS Receive Octet Output B RXO B Output 67 Synchronous Data Request to Send B SYNC R...

Page 167: ...User Interfaces DMD15 DMD15L IBS IDR Satellite Modem 5 14 TM051 Rev 5 8...

Page 168: ...that the LNA is turned on If a spectrum analyzer is available locate and measure the receive level which should not be below 65 dBm absolute 50 dBm is nominal Possible Cause Receive carrier frequency...

Page 169: ...ed into Transmit alarms and Receive alarms Transmit and Receive are completely independent 6 2 2 2 Minor Alarms Minor alarms indicate that a problem may persist outside the modem such as loss of Terre...

Page 170: ...DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem Maintenance TM051 Rev 5 8 6 3 Table 6 1 DMD15 DMD15L Interface Common Equipment Fault Matrix Table 6 2 DMD15 DMD15L RX Fault Matrix...

Page 171: ...identify The top horizontal column indicates the various actions that the modem will undertake These actions may be in the form of a relay a switch or an LED 6 3 2 IBS Fault Conditions and Actions Fi...

Page 172: ...rompt Service Alarm AS1 IBS Prompt Alarm AS1 IBS Prompt Alarm AS1 IBS Prompt Alarm AS1 IBS Prompt Alarm Action to Terrestrial Across Interface H AH2 1 in Bit 3 of NFAS TSO Yellow Alarm AH2 1 in Bit 3...

Page 173: ...ellite Input FA5 Alarm Indication Received From Satellite Input AS1 2 IBS Prompt Service Alarm AS1 2 IBS Prompt Service Alarm AS1 2 IBS Prompt Service Alarm AS2 IBS Service Alarm AH1 3 AIS in TS s 111...

Page 174: ...CITT V 35 or IBS others optional FEC Viterbi K 7 at 1 2 3 4 and 7 8 Rate Sequential 1 2 3 4 7 8 optional Trellis 2 3 optional Turbo Product Code optional Rate 3 4 0 793 64 57 x 64 57 Rate 1 2 0 495 32...

Page 175: ...Transmit External Rx Recovered or SCT Internal 7 3 Monitor and Control Transmit and Receive Frequencies Transmit and Receive Data Rates and Code Rate Differential Encoding On Off Scrambler On Off Spec...

Page 176: ...ced and 120 Ohm balanced HDB3 G 703 T2 DSX2 6 312 Mbps 75 Ohm unbalanced and 110 Ohm balanced B8ZS and B6ZS G 703 E2 8 448 Mbps 75 Ohm BNC unbalanced HDB3 ITU V 35 Differential Clock and Data only RS...

Page 177: ...K 3 4 9450 9750000 19042 9750000 QPSK 7 8 11025 10000000 22216 10000000 QPSK 495 6226 6423976 12546 6423976 QPSK 793 9975 10000000 20100 10000000 OQPSK NONE 12600 10000000 25390 10000000 OQPSK 1 2 630...

Page 178: ...dB 8 6 dB 5 2 dB 6 3 dB 6 6 dB 7 9 dB 10 7 6 6 dB 8 2 dB 9 3 dB 5 9 dB 6 9 dB 7 3 dB 8 6 dB 10 8 7 1 dB 8 7 dB 10 2 dB 6 4 dB 7 5 dB 7 8 dB 9 4 dB 8PSK Trellis Decoder 8PSK BER Specification Typical...

Page 179: ...1 2 FEC Rate 3 4 FEC 10 6 4 1 5 6 10 7 4 2 5 8 10 8 4 4 6 0 10 10 5 0 6 3 16 QAM BER Performance Viterbi Decoder Specification Typical BER 1 2 Rate 3 4 Rate 7 8 Rate 1 2 Rate 3 4 Rate 7 8 Rate 10 3 n...

Page 180: ...5 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem Technical Specifications TM051 Rev 5 8 7 7 10 6 n a 9 1 dB 10 5 dB n a 8 6 dB 0 2 dB 10 7 n a 9 3 dB 10 8 dB n a 8 8 dB 10 4 dB 10 8 n a 9 5 dB 11 0 dB n...

Page 181: ...Technical Specifications DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem 7 8 TM051 Rev 5 8...

Page 182: ...DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem Technical Specifications TM051 Rev 5 8 7 9...

Page 183: ...Technical Specifications DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem 7 10 TM051 Rev 5 8...

Page 184: ...4 5 6 8 4 6 7 9 5 6 7 8 10 5 7 8 9 11 6 8 9 10 12 6 8 9 10 11 13 7 9 10 11 12 14 7 10 11 12 13 15 8 10 12 13 14 16 8 11 12 13 14 15 17 9 12 13 14 15 16 18 9 12 14 15 16 17 19 10 13 15 16 17 18 20 10 1...

Page 185: ...39 20 26 30 32 33 34 35 36 37 38 40 20 27 30 32 34 35 36 37 38 39 41 21 28 31 33 35 36 37 38 39 40 42 28 32 34 35 36 37 38 39 40 41 43 29 33 35 36 37 38 39 40 41 42 44 30 33 36 37 38 39 40 41 42 43 4...

Page 186: ...61 62 63 64 65 66 67 69 52 56 58 60 61 62 63 64 65 66 67 68 70 53 56 59 60 62 63 64 65 66 67 68 69 71 54 57 60 61 63 64 65 66 67 68 69 70 72 54 58 60 62 63 64 65 66 67 68 69 70 71 73 55 59 61 63 64 65...

Page 187: ...80 83 85 87 88 90 91 92 93 94 95 96 97 98 100 80 84 86 88 89 90 91 92 93 94 95 96 97 98 99 101 81 85 87 89 90 91 92 93 94 95 96 97 98 99 100 102 82 85 88 90 91 92 93 94 95 96 97 98 99 100 101 103 83...

Page 188: ...119 120 121 122 123 124 125 126 128 110 112 114 116 117 118 119 120 121 122 123 124 125 126 127 129 111 113 115 117 118 119 120 121 122 123 124 125 126 127 128 130 112 114 116 117 119 120 121 122 123...

Page 189: ...151 152 153 154 155 157 138 140 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 158 139 141 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 159 140 142 144 145 146 147 148 149...

Page 190: ...78 179 180 181 182 183 184 186 166 168 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 187 167 169 170 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 188 168 170 171 173 1...

Page 191: ...07 208 209 210 211 212 214 195 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 215 196 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 216 197 198 200 201 202 2...

Page 192: ...25 226 227 228 229 230 231 232 233 234 235 236 237 239 220 221 222 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 240 220 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 2...

Page 193: ...48 249 250 252 233 234 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 253 234 235 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 254 235 236 238 239 240 241 242 243 2...

Page 194: ...DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem Glossary TM051 Rev 5 8 5 11...

Page 195: ......

Page 196: ...ASIC Application Specific Integrated Circuit ATE Automatic Test Equipment B BER Bit Error Rate BERT Bit Error Rate Test Bit BIT Binary Digit or Built In Test BITE Built In Test Equipment bps Bits Per...

Page 197: ...roadcast D I Drop and Insert E Eb N0 Ratio of Energy per bit to Noise Power Density in a 1 Hz Bandwidth EEPROM Electrically Erasable Programmable Read Only Memory EIA Electronic Industries Association...

Page 198: ...Input Output IEEE International Electrical and Electronic Engineers IESS INTELSAT Earth Station Standards IF Intermediate Frequency INTELSAT International Telecommunication Satellite Organization ISO...

Page 199: ...e Mod Modulator or Modulated ms Millisecond M C Monitor and Control N NC Normally Closed NO Normally Open ns Nanoseconds NVRAM Non Volatile Random Access Memory N C No Connection or Not Connected O OQ...

Page 200: ...es are block based error correcting codes with a wide range of applications in digital communications and storage S SEQ Sequential SYNC Synchronize T TBD To Be Designed or To Be Determined TM Technica...

Page 201: ...Glossary DMD15 DMD15L DMD15 DMD15LL DMD15 DMD15LIBS IDR Satellite Modem G 6 TM051 Rev 5 8 W X Y Z W Watt Misc s Microsecond Ohms 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying...

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