Page 1 User Manual MTD200 MPEG Test Decoder 070-9951-00...
Page 2 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
Page 5: Table Of Contents
......... . 5–12 MTD200 MPEG Test Decoder User Manual...
Page 6 Interfaces for Descrambling and Flash ROM card ..... . . A–10 Appendix B: Specifications Glossary Index MTD200 MPEG Test Decoder User Manual...
Page 7 Figure 4–18: MONITORING/PARAMETER GROUP menu ..4–15 Figure 4–19: MONITORING/LIMITS menu ....4–16 MTD200 MPEG Test Decoder User Manual...
Page 8 ... . . A–8 Figure A–2: Wiring diagram for hardware handshake ... . A–9 MTD200 MPEG Test Decoder User Manual...
Page 9 ........5–67 Table 5–19: Definitions of Library Calls ..... . . 5–68 MTD200 MPEG Test Decoder User Manual...
Page 10 ......B–4 Table B–7: Physical Characteristics ......B–4 MTD200 MPEG Test Decoder User Manual...
Page 11 Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel. Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. MTD200 MPEG Test Decoder User Manual...
Page 12 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated viii MTD200 MPEG Test Decoder User Manual...
Page 13 Preface This manual provides operating information for the MTD200 MPEG Test Decoder and supports firmware version 2.02 and up. The manual is divided into nine sections, containing the following information: Section 1 contains introductory information about the digital TV transmis- sion technique.
Page 14 For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales office. Or visit Support our web site for a listing of worldwide service locations. http://www.tek.com For other...
Page 16: Definitions And Standards
Introduction to Digital TV Transmission Technique The MTD200 MPEG Test Decoder and the MTG200 MPEG Test Generator are based on a completely new transmission technique that is currently being phased in and has become known as the digital TV transmission technique. Not many users of the above units will have sufficient knowledge about this new technique.
Page 17 The interface for the MPEG test generator and the MPEG test decoder is the Transport Stream (TS). The composition and structure of this multiplex stream is described in MPEG-2 Systems on page 1–5. 1–2 MTD200 MPEG Test Decoder User Manual...
Page 18 Measurement Guidelines for DVB-Systems DVB Technical Module: Document A010: Interfaces for CATV / SMATV Headends and similar Professional Equipment TM 1341 Common Interface Specification for Conditional Access and other Digital Video Broadcasting Decoder Applications 1–3 MTD200 MPEG Test Decoder User Manual...
Page 19: Figure 1-1: Scenario For A Dvb Distribution Network
Broadband Data cable (BK) Transport Modulator Transmultiplexer stream Modulator multiplexer Data Video Audio Video on Data Data demand services server TS = Transport stream interface Figure 1–1: Scenario for a DVB distribution network 1–4 MTD200 MPEG Test Decoder User Manual...
Page 20: Figure 1-2: Functions Of A Transport Stream Demultiplexer
Conditional Access Table (CAT) Program Clock Reference (PCR), Synchronization time stamps of elementary streams of a program (PTS + DTS) Decoding additional data Service Information (SI) Figure 1–2: Functions of a transport stream demultiplexer 1–5 MTD200 MPEG Test Decoder User Manual...
Page 21 PID for the Program Map Table (PMT). The elementary streams (vision, sound, data) that belong to the individual programs are described in a PMT. A PMT consists of one or several sections, each describing a program. 1–6 MTD200 MPEG Test Decoder User Manual...
Page 22: Figure 1-3: Pat And Pmt Describe The Contents Of A Transport Stream
The Continuity Counter is represented by the four least significant bits of the last header bytes (bit 29 to bit 32 of each packet). The value (0–15) is incremented with each new packet. Value 15 is followed by a zero. 1–7 MTD200 MPEG Test Decoder User Manual...
Page 23 PCR value. It is used in the decoder for controlling the 27 MHz system clock PLL. Thus, the synchronization of the multiplexer at the transmitter end and of the demultiplexer at the receiver end is ensured. 1–8 MTD200 MPEG Test Decoder User Manual...
Page 24 EIT (Event Information table) supplies the data base for an electronic TV guide with information about the type of program and age classification for the viewer. RST (Running Status Table) contains status information about the individual programs and especially serves for controlling video recorders. 1–9 MTD200 MPEG Test Decoder User Manual...
Page 25: Table 1-1: Pid And Table_Id For Psi / Si
Table Table_ID 0x0000 0x00 0x0020 to 0x1FFE 0x02 0x0001 0x01 0x0010 0x40 to 0x41 0x0011 0x4A 0x0011 0x42, 0x46 0x0012 0x4E to 0x6F 0x0013 0x71 0x0014 0x70 0x0014 0x73 0x0010 to 0x0014 0x72 1–10 MTD200 MPEG Test Decoder User Manual...
Page 26: Figure 1-4: Transport Packet
OPCR splice transport transport adaptation 3 flags optional countdown private private field fields data data extension length length splice ltw_valid piecewise DTS_next_au type flag offset rate Figure 1–5: Adaptation field 1–11 MTD200 MPEG Test Decoder User Manual...
Page 27: Figure 1-7: Program Association Section
’0’ section transport version current section last syntax length stream number next number section loop indicator indicator number program network progrm program number 0 number i PID_i Figure 1–7: Program association section 1–12 MTD200 MPEG Test Decoder User Manual...
Page 28: Figure 1-8: Program Map Section
Figure 1–9: Conditional access section table section private private syntax indicator section indicator length N private data bytes table version current section last number next number section private extensions indicator number data Figure 1–10: Private section 1–13 MTD200 MPEG Test Decoder User Manual...
Page 29 Introduction to Digital TV Transmission Technique 1–14 MTD200 MPEG Test Decoder User Manual...
Page 31 Measurement Functions In this section you will find a comprehensive description of all measurement functions and error LEDs provided on the MTD200 MPEG Test Decoder to monitor an MPEG-2 transport stream. These measurement functions fully comply with the DVB guidelines for monitoring MPEG-2 transport stream syntax (DVB Measurement Guidelines ETR 290).
Page 32: Figure 2-1: Elements Of The Transport Stream Syntax
1 Bit 1 Bit 1 Bit 1 Bit 1 Bit 42 Bit 42 Bit n Bit Figure 2–1: Elements of the transport stream syntax 2–2 MTD200 MPEG Test Decoder User Manual...
Page 33: Table 2-1: Overview Of Measurement Functions
Data rate for null packets Data rate for PSI/SI table NOTE. The data rates of programs and single streams calculated by the MTD200 are the gross rates of the programs and single streams. Packet headers and possible adaptation fields are considered in the measured value.
Page 34 Table ID NIT Upper Dist. SDT_error OTHER Table ID SDT Upper Dist. EIT_error OTHER Table ID EIT Upper Dist. RST_error OTHER Table ID TDT_error OTHER Table ID TDT Upper Dist. unreferenced_PID OTHER Unref. PID 2–4 MTD200 MPEG Test Decoder User Manual...
Page 35: Ts_Sync_Loss (1St Priority)
Two LEDs labeled TS and located one above the other at the very left of the front panel serve to display the synchronization status. An error (no synchro- nism) is indicated by the yellow LED (top); synchronism is indicated by the green LED (bottom) lighting. 2–5 MTD200 MPEG Test Decoder User Manual...
Page 36: Sync_Byte_Error (1St Priority)
An error of this type is indicated by the LED labeled SYNC lighting (line of LEDs at front panel). Additional information on the fault triggering the SyncByte error message (SINGLE = single error or BURST = Burst error) can be obtained from the monitoring report. 2–6 MTD200 MPEG Test Decoder User Manual...
Page 37: Pat_Error (1St Priority)
An error of this type (cumulative message) is indicated by the LED labeled PAT lighting (line of LEDs at front panel). Detailed information on the type of PAT error as defined in the above table can be obtained from the monitoring report. 2–7 MTD200 MPEG Test Decoder User Manual...
Page 38: Pmt_Error (1St Priority)
An error of this type (cumulative message) is indicated by the LED labeled PMT lighting (line of LEDs at front panel). Detailed information on the type of PMT error as defined in the above table can be obtained from the monitoring report. 2–8 MTD200 MPEG Test Decoder User Manual...
Page 39: Continuity_Count_Error (1St Priority)
An error of this type (cumulative fault) is indicated by the LED labeled CONT lighting (line of LEDs at front panel). More detailed information on the type of Continuity_Count Errors as listed in the above table can be obtained from the monitoring report. 2–9 MTD200 MPEG Test Decoder User Manual...
Page 40: Pid_Error (1St Priority)
An error of this type (cumulative message) is indicated by the LED labeled PID lighting (line of LEDs at front panel). More detailed information on the type of PID error as listed in the above table can be obtained from the monitoring report. 2–10 MTD200 MPEG Test Decoder User Manual...
Page 41: Transport_Error (2Nd Priority)
PID of the packet containing the error can be obtained from the monitoring report. NOTE. The PID information contained in the monitoring report may be wrong if a transport error is indicated and if the bit error concerns the PID information of the packet header. 2–11 MTD200 MPEG Test Decoder User Manual...
Page 42: Crc_Error (2Nd Priority)
An error of this type (cumulative message) is indicated by the LED labeled CRC lighting (line of LEDs at front panel). As additional information, the PID of the packet containing the error can be obtained from the monitoring report. 2–12 MTD200 MPEG Test Decoder User Manual...
Page 43: Pcr_Error, Pcr_Accuracy_Error (2Nd Priority)
(ETR 290) and are preset in the MPEG test decoder, but they can also be modified according to individual requirements in the MONITORING / LIMITS menu (refer to MONITORING / LIMITS Menu on page 4–15). 2–13 MTD200 MPEG Test Decoder User Manual...
Page 44 LED labeled OTHER lighting (line of LEDs at front panel). More detailed information on the type of PCR error as listed in the above tables can be obtained from the monitoring report. 2–14 MTD200 MPEG Test Decoder User Manual...
Page 45: Pts_Error (2Nd Priority)
LED labeled OTHER lighting (line of LEDs at front panel). As additional information, the PID of the program containing the faulty PTS values can be obtained from the monitoring report. 2–15 MTD200 MPEG Test Decoder User Manual...
Page 46: Cat_Error (2Nd Priority)
LED labeled OTHER lighting (line of LEDs at front panel). Additional information on the type of error as listed in the above table can be obtained from the monitoring report. 2–16 MTD200 MPEG Test Decoder User Manual...
Page 47: Table 2-2: Repetition Rates For Service Information
SI sections is too short (*** LOWER DISTANCE) The abbreviated designations in parentheses are the text displayed in the monitoring report. The series of asterisks (***) is replaced by the abbreviation used in the appropriate SI table (for example, NIT). 2–17 MTD200 MPEG Test Decoder User Manual...
Page 48: Table 2-3: Overview Of Service Information According To Dvb Guideline Ets 300468
0x42, 0x46 0x0011 0x4A 0x0012 0x4E to 0x4F, 0x50 to 0x6F 0x0013 0x71 — 0x0014 0x70 0x0014 0x73 Stuffing Table 0x0010 to 0x0013 0x72 — Only if present. For the current transport stream multiplexer. 2–18 MTD200 MPEG Test Decoder User Manual...
Page 49 LED labeled OTHER lighting (in the line of LEDs at front panel). As additional information, the table_id of the packet containing the error or a possible repetition rate error can be obtained from the monitoring report. 2–19 MTD200 MPEG Test Decoder User Manual...
Page 50: Unreferenced Pid (3Rd Priority)
An error of this type is indicated in a cumulative message signaling several single errors by the LED labeled OTHER lighting (line of LEDs at front panel). As additional information, the PID of the packet containing the error can be obtained from the monitoring report. 2–20 MTD200 MPEG Test Decoder User Manual...
Page 52: Legend For Front And Rear View
Preparation for Use This section discusses general instructions on the preparation for use and the operation of the MTD200 MPEG Test Decoder. It contains brief explanations of the controls and connectors on the front and rear panels. This chapter also provides step-by-step guidance to put the unit into operation.
Page 53: Of A Transport Stream
(refer to SETUP/ON SCREEN DISPLAY Menu page 4–32.). SND 1 / L, SND 2 / R Analog audio outputs. A sound signal of a program in the MPEG transport stream is output. 3–2 MTD200 MPEG Test Decoder User Manual...
Page 54 SYNC Sync_byte_error PAT_error CONT Continuity_count_error PMT_error PID_error TRANS Transport_error CRC_error OTHER PCR_error, PCR_accuracy_error, PTS_error, CAT_error, SI_repetition_error, NIT_error, SDT_error, EIT_error, RST_error, TDT_error, unreferenced PID The error messages are indicated at intervals of one second. 3–3 MTD200 MPEG Test Decoder User Manual...
Page 55: Table 3-2: Legend For Rear View
(see SETUP/ONSCREEN DISPLAY Menu on page 4–32). TS ASI Input for an MPEG transport stream to DVB DOCUMENT 010: ASYNCHRONOUS SERIAL INTERFACE When this input is selected, the front-panel LED marked TS ASI REAR lights. 3–4 MTD200 MPEG Test Decoder User Manual...
Page 56: Unpacking The Unit
Locking device (used to prevent the power cable from being disconnected) This manual Optional Accessories You can order the following accessories for the MTD200 MPEG Test Decoder. LEMO/open adapter cable (part number 2067.7415.00) Dual LEMO/dual XLR cable (part number 2068.9187.00) 3–5...
Page 57: Installation
(see Table 3–2 on page 3–4). Connecting a Monitor When a monitor is connected to one of the analog or digital video outputs, the MPEG test decoder can display characteristics and errors of the applied transport 3–6 MTD200 MPEG Test Decoder User Manual...
Page 58 If a key card is fitted already, remove it by pressing the ejection lever on the right. b. Insert key card in the upper PCMCIA slot. 3. Closing the unit: a. Proceed in the reverse order as for opening the unit. 3–7 MTD200 MPEG Test Decoder User Manual...
Page 59: Figure 3-1: Slot For Key Card
Preparation for Use Key card Key card ejection lever MPEG 2 decoder Flash memory card Flash ejection lever memory card Figure 3–1: Slot for key card 3–8 MTD200 MPEG Test Decoder User Manual...
Page 60: Figure 3-2: Setting The Audio Level
“left” and “right” by positioning the links as shown on the screen cover (see Figure 3–2). +6 dBu +9 dBu +12 dBu +15 dBu Front Rear Figure 3–2: Setting the audio level 3–9 MTD200 MPEG Test Decoder User Manual...
Page 61: Table 3-3: Led-Codes During Booting Of Equipment
See Error Indication in Table 3–1 on page 3–3. If a valid MPEG-2 signal is applied to the respective input, the instrument must synchronize to it. When synchronization is completed, the lower (below TS) green LED lights. 3–10 MTD200 MPEG Test Decoder User Manual...
Page 63: Figure 4-1: Overview Of Control Elements
Control Elements This section describes the parts of the MTD200 that are used to control the instrument. A typical configuration is shown in Figure 4–1. SER 75 , Y, C or CCVS output...
Page 64: Figure 4-2: Keypad
(refer to Basic Operating Procedures on page 4–4). ‘ ’ indicates a 1-out-of-N selection ‘ ’ indicates an active setting Menu name Figure 4–3: LC display 4–2 MTD200 MPEG Test Decoder User Manual...
Page 65 (see Basic Operating Procedures on page 4–4), the cursor-se- lected menu item or field in the OSD is in reverse video. Status line top: Menu name Status line bottom: Indicates key assignment Cursor Figure 4–4: On screen display 4–3 MTD200 MPEG Test Decoder User Manual...
Page 66: Figure 4-5: Menu Selection
). The selected menu is called up with ENTER. Set cursor to desired submenu Enter Calls up the submenu Returns to next higher menu Cursor for menu selection DECODER submenu Figure 4–5: Menu selection 4–4 MTD200 MPEG Test Decoder User Manual...
Page 67: Figure 4-6: 1-Out-Of-N Selection
Set cursor to desired item ENTER Activates the selected setting which is marked with an asterisk (*) Returns to the next higher menu Cursor for 1-out-of-N selection Active setting Figure 4–6: 1-out-of-N selection 4–5 MTD200 MPEG Test Decoder User Manual...
Page 68: Figure 4-7: M-Out-Of-N Selection
Switches the status of the selected item. Active items are marked with [X] for (ON); inactive items are marked with [ ] for (OFF). Returns to next higher menu. Cursor for Identifies an M-out-of-N active setting selection Figure 4–7: M-out-of-N selection 4–6 MTD200 MPEG Test Decoder User Manual...
Page 69: Figure 4-8: Entering Numerals
Starts the entry, the value to be changed is marked with > ... <, or terminates the entry and sets the new value Aborts the entry Identifies the entry mode Figure 4–8: Entering numerals 4–7 MTD200 MPEG Test Decoder User Manual...
Page 70: Figure 4-9: Entering Text
Starts the entry for the item marked with > ... <, or terminates the entry and takes over the new text Aborts the entered text Identifies the entry mode Figure 4–9: Entering text 4–8 MTD200 MPEG Test Decoder User Manual...
Page 71: Figure 4-10: Status Menu
TS_SYNC LOSS state, an indication is made in the TS data rate field with “––––––––” and using front–panel LEDs. If the name of the selected program is not in the transport stream, “––––––––” is displayed in the field of the program name. 4–9 MTD200 MPEG Test Decoder User Manual...
Page 72: Figure 4-11: Main Menu
TS Input Serial rear Video Decoder Audio Store/Recall Setup Print RS-232 Figure 4–12: Overview of MAIN menu Set cursor to desired submenu ENTER Calls up the selected submenu Returns to the STATUS menu 4–10 MTD200 MPEG Test Decoder User Manual...
Page 73: Figure 4-13: Functions Of Monitoring Menu
GROUP menu. Limits for the PCR values and PSI and SI tables can be specified in the MONITORING/LIMITS menu. The limits with the standardized values for DVB and MPEG can be predefined in the MONITORING/DEFAULT menu. 4–11 MTD200 MPEG Test Decoder User Manual...
Page 74: Figure 4-15: Monitoring/Statistics Menu
In the ‘ELAPSED TIME’ field of the OSD, the monitoring time is displayed in days, hours, minutes, and seconds. 4–12 MTD200 MPEG Test Decoder User Manual...
Page 75: Figure 4-16: Monitoring/Report Menu
CRC error of PAT), is indicated. If the event refers to a specific PID, this is indicated in the column ‘PID’. In the ‘ELAPSED TIME’ field of the MONITORING/STATISTICS Menu, the monitoring time is displayed in days, hours, minutes and seconds. 4–13 MTD200 MPEG Test Decoder User Manual...
Page 76: Figure 4-17: Monitoring/Control Menu
The error seconds counters are reset. The content of the report is cleared and the time in the ‘ELAPSED TIME’ field is reset to 0:00:00. 4–14 MTD200 MPEG Test Decoder User Manual...
Page 77: Figure 4-18: Monitoring/Parameter Group Menu
PCR values and PSI and SI tables can be indicated (see Table 4–1). When a limit is exceeded, the error condition is considered fulfilled and an error is entered in the report and error seconds in the statistics for active parameters. 4–15 MTD200 MPEG Test Decoder User Manual...
Page 78: Figure 4-19: Monitoring/Limits Menu
Set cursor to desired parameter (for example, PAT DISTANCE) Switch between MIN and MAX value of parameter ENTER Starts entry of numerals and enters value (refer to Entering Numerals on page 4–7) Returns to MONITORING menu 4–16 MTD200 MPEG Test Decoder User Manual...
Page 79: Figure 4–20: Monitoring/Default Limits Menu
The values marked with ‘–––’ in Table 4–1 on page 4–16 are not influenced by this setting. Figure 4–20: MONITORING/DEFAULT LIMITS menu Set cursor to desired standard ENTER Predefines limit values with the standard values (see Table Table 4–1 on page 4–16 Returns to the MONITORING menu 4–17 MTD200 MPEG Test Decoder User Manual...
Page 80: Figure 4–21: Monitoring/Select Program Menu
After applying a new transport stream, it is first checked to see if at least one of the programs selected in the MONITORING/SELECTED PROGRAMS menu for monitoring is contained in the transport stream. If not, the AUTO SELECT ALL PROGRAMS mode is enabled and the programs are selected automatically. 4–18 MTD200 MPEG Test Decoder User Manual...
Page 81: Figure 4–22: Monitoring/Selected Programs Menu
PMTs used by the monitored programs for the PMTs PCR ERROR only determined for the PCR values of the monitored programs PCR ACCURACY only determined for the PCR values of the monitored programs 4–19 MTD200 MPEG Test Decoder User Manual...
Page 82: Figure 4–23: Interaction Of Decoder Functions
The video standard for the analog video output is set in the DECODER/VIDEO OUTPUT menu. The audio output can be muted in the DECODER/AUDIO OUTPUT menu. The aspect ratio of the connected monitor can be selected in the DECODER/ MONITOR TYPE menu. 4–20 MTD200 MPEG Test Decoder User Manual...
Page 83: Figure 4–24: Decoder/Select Program Menu Selecting A Program Via Its Name
Returns to the DECODER menu The menu in the OSD has five columns. The first three can be selected with cursor keys . The two last columns contain only program-specific informa- tion and cannot be selected. 4–21 MTD200 MPEG Test Decoder User Manual...
Page 84 Take care that the program list is displayed after the MPEG2 data stream has been applied. If the transport stream does not contain a description of the program names (for example, there is no SDT-table or service descriptor), “––––––––” is output for the name. 4–22 MTD200 MPEG Test Decoder User Manual...
Page 85: Figure 4–25: Decoder/Select Program Element Menu
The program with number, name and brief information on elements, conditional access, and total data rate is displayed in the first line of the OSD. Below this line, the respective program elements are listed. 4–23 MTD200 MPEG Test Decoder User Manual...
Page 86 PID of SI table TABLE Name of SI table Indication of data rate of an SI table in KBit/s, for PMTs only indicated for those tables whose programs are monitored (see section 4.3.3.7) 4–24 MTD200 MPEG Test Decoder User Manual...
Page 87: Table 4-2: Selectable Video Standards
Returns to DECODER menu Table 4–2: Selectable video standards Setting in Video standard for Video standard for DECODER/VIDEO OUTPUT program with 625 lines program with 525 lines menu PAL/NTSC B/G PAL M/NTSC SECAM/NTSC SECAM M/NTSC 4–25 MTD200 MPEG Test Decoder User Manual...
Page 88: Figure 4–27: Decoder/Audio Output Menu
Figure 4–28: DECODER/MONITOR TYPE menu Set cursor to desired aspect ratio ENTER Selection of desired aspect ratio, the selected aspect ratio is marked with an asterisk (*) Returns to the DECODER menu 4–26 MTD200 MPEG Test Decoder User Manual...
Page 89: Figure 4–29: Interaction Of Functions In The Ts Input Menu
(BNC) at the rear. CAUTION. The maximum data rate may be 54 Mbit/s. A packet may have a length of 188 Byte or 204 Byte (188 data bytes + 16 error-correction bytes). 4–27 MTD200 MPEG Test Decoder User Manual...
Page 90: Figure 4–31: Ts Input/Sync Condition Menu
Number of valid sync words before TS SYNC LOCK is recognized, selectable between 1 and 31 LOSS Number of invalid sync words before a TS SYNC LOSS is recognized, selectable between 1 and 7 4–28 MTD200 MPEG Test Decoder User Manual...
Page 91: Figure 4–32: Print Menu
Content of MONITORING/REPORT Menu. The range to be printed is selectable. The range added to the report since the last printout is preset. PROGRAM INFO List of detailed contents of applied data stream. CONFIG Current settings of MPEG2 Measurement Decoder DVMD. 4–29 MTD200 MPEG Test Decoder User Manual...
Page 92 Set cursor to last entry in report Set cursor to first entry of report ENTER Switch on/off marker mode When switching on the marker mode an existing marking is deleted. Returns to PRINT/REPORT menu 4–30 MTD200 MPEG Test Decoder User Manual...
Page 93: Figure 4–33: Store Config And Recall Config Menu
Content of report in the MONITORING/REPORT menu Content of program list in the DECODER/SELECT PROGRAM menu Settings of program elements in the DECODER/SELECT PROGRAM ELEMENT menu, except those for the currently decoded program 4–31 MTD200 MPEG Test Decoder User Manual...
Page 94: Figure 4–34: Setup/On Screen Display Menu
Menus are displayed on LCD only. DISPLAY ON Menus are displayed on LCD and OSD simultaneously. In the STATUS menu, the OSD can be switched off with ESC. The OSD is switched on again by pressing any key. 4–32 MTD200 MPEG Test Decoder User Manual...
Page 95: Figure 4–35: Setup/Rs-232 Menu
NOTE. Hardware handshake must be used for transmitting block data via the RS-232 interface, since control characters (XON / XOFF) are not recognized. The latter may be part of the block data stream. 4–33 MTD200 MPEG Test Decoder User Manual...
Page 96: Figure 4–36: Setup/Date+Time Menu
. The selected digit is varied with cursor keys and the entered value is stored with ENTER. The entry is aborted with ESC. Returns to SETUP menu 4–34 MTD200 MPEG Test Decoder User Manual...
Page 98: Brief Instructions
Remote Control The MTD200 MPEG Test Decoder is fitted with an RS-232-C interface as standard. The connector is located at the rear of the instrument and permits an external controller to be connected. The instrument supports the Standard Commands for Programmable Instruments (SCPI), version 1995.0. The SCPI standard is based on the IEEE 488.2 standard and aims at a standardization of...
Page 99: Starting Remote Control
DISPlay:OSD:MODE ON. The display modes are selected my means of command SYSTem:DISPlay:CONTents STATistic | ... and are as follows: STATistic MONITORING\STATISTICS menu displayed on the OSD REPort MONITORING\REPORT menu displayed on the OSD 5–2 MTD200 MPEG Test Decoder User Manual...
Page 100: Device-Dependent Messages (Commands And Responses)
Device-specific commands relate to functions that depend on device characteristics, such as the frequency setting. Part of these commands are standardized by the SCPI Consortium (refer to SCPI Introduction page 5–4). 5–3 MTD200 MPEG Test Decoder User Manual...
Page 101: Structure And Syntax Of Device-Dependent Messages
9 or 11 to 32 decimal (for example, a space). The headers may be composed of several keywords. The query form is generated by appending a question mark directly to the header. NOTE. The commands used in the examples below are not necessarily implement- ed in the instrument. 5–4 MTD200 MPEG Test Decoder User Manual...
Page 102 The individual keywords are separated by a colon (:). Example: This command is at the fifth level of the system SYSTem and sets the baud rate to 9600. 5–5 MTD200 MPEG Test Decoder User Manual...
Page 103 If an instrument has several identical functions or features (such as inputs), the desired function can be selected by a suffix to the command. Commands given without suffix are interpreted as having suffix 1. 5–6 MTD200 MPEG Test Decoder User Manual...
Page 104 This command line contains two commands. The first command belongs to the SYSTem system and is used to set the time of the system clock. The second command belongs to the SENSe system, and selects the program to be decoded. 5–7 MTD200 MPEG Test Decoder User Manual...
Page 105 Example: Response: 2. Maximum and minimum values can be requested by a special text parameter. Example: Response: 3. Numeric values are output without unit. Physical quantities refer to the basic units. Example: Response: 5–8 MTD200 MPEG Test Decoder User Manual...
Page 106 Physical quantities may be stated with the unit. Permissible prefixes for the unit are G (Giga), MA (Mega, MOHM and MHZ are also allowed), K (kilo), M (milli), U (micro) and N (nano). If no unit is specified, the basic unit will be used. Example: 5–9 MTD200 MPEG Test Decoder User Manual...
Page 107 Like any other parameters, they must be separated from the header by a white space. A query returns the short form of the character data. Example: Setting command: Query: Response: 5–10 MTD200 MPEG Test Decoder User Manual...
Page 108 The semicolon separates two commands in a command line. ‘ , ’ The comma separates several parameters of a command. ‘ ? ’ The question mark forms a query. ‘ * ’ The asterisk identifies a common command. 5–11 MTD200 MPEG Test Decoder User Manual...
Page 109: Description Of Commands
In the command description the hierarchy of the commands is shown. This means that for each command all keywords listed above the command through to the left-hand margin have to be considered too. 5–12 MTD200 MPEG Test Decoder User Manual...
Page 110 Status Reporting System on page 5–49. Command Parameter Unit Notes *CLS No query *ESE 0 to 255 *ESR? Query only *IDN? Query only *OPC 5–13 MTD200 MPEG Test Decoder User Manual...
Page 111 Register if all preceding commands have been executed. This bit may be used to assert a Service Request. *OPC? OPERATION COMPLETE QUERY places an ASCII character 1 into the output buffer as soon as all preceding commands have been executed. 5–14 MTD200 MPEG Test Decoder User Manual...
Page 112 In the remote-control mode the decoder features two additional operating modes. Modes Command Parameter Unit Notes SENSe Setting the operating mode :FUNCtion [:ON][?] MONitoring | TRERror | DUMP SENSe :FUNCtion [:ON][?] MONitoring | TRERror | DUMP 5–15 MTD200 MPEG Test Decoder User Manual...
Page 113 If monitoring was active before the switchover to TRERror or DUMP, monitoring will be continued when the MONitoring mode is selected again. On power up, the MPEG test decoder is always in the MONitoring mode. 5–16 MTD200 MPEG Test Decoder User Manual...
Page 114 0 = no entry in the test report. 1 = line in the test report 1, <error number>, PID {, ... } | –1 = entries overwritten –1, <error number>, PID {, ... } 5–17 MTD200 MPEG Test Decoder User Manual...
Page 115 See Parameter Names for Monitoring on page 5–42. Response: year, month, day, hour, minute, second, parameter status Parameter status : –1 parameter not active okay., no error occurred an error has occurred Example: READ:MON? CCNT Response: 1996,05,06,20,15,00,1 5–18 MTD200 MPEG Test Decoder User Manual...
Page 116 READ [:SCALar] :MONitoring :ERRSeconds :ALL? Queries the error seconds of all parameters. Response: year month day, hour, minute, second, error seconds of TSSL, SBE, PATE, CCOE, PMTE, PIDE, TPEE, CRCE, PCRE, PCRA, PTSE, CATE, 5–19 MTD200 MPEG Test Decoder User Manual...
Page 117 <error number>, PID Report status : The desired entry is not in the report. Only the report status is output. The desired entry is in the report. 5–20 MTD200 MPEG Test Decoder User Manual...
Page 118 READ [:SCALar] :MONitoring :DURation? Reads the monitoring period (value in the ELAPSED TIME field in the OSD) Response: Monitoring status, day, hours, minutes, seconds Monitoring status: 0 monitoring disabled monitoring active Example: READ:MON:DUR? Response: 1,0,5,45,06 5–21 MTD200 MPEG Test Decoder User Manual...
Page 119 Example: CONF:MON:LIM:UPP PATR, 600 s CONFigure :MONitoring :LIMit :LOWer <parameter name>, 1 to 1000 ms Sets the lower limit for the specified parameter. (For limit values, refer to Table 5–5 on page 5–46.) 5–22 MTD200 MPEG Test Decoder User Manual...
Page 120 :NAMe? 1 to 65535 ‘name’ :BITRate? 1 to 65535 Queries the bit rate of a program 0.0 to 99.999E6 bit/s :CONDaccess? 1 to 65535 Queries whether a program is encrypted. 1 | 0 5–23 MTD200 MPEG Test Decoder User Manual...
Page 121 SENSe :PROGram :VIDeo 32 to 8191 Sets the PID for the video stream to be decoded. This is only required if the program contains more than one video stream or if the PMT is faulty. Example: SENS:PROG:VID 100 5–24 MTD200 MPEG Test Decoder User Manual...
Page 122 The response is 5.3 Mbit/s READ [:SCALar] :PROGram :CONDaccess? 1 to 65535 Queries whether the program is encrypted. Example: READ:PROG:COND? 1 Response: READ :ARRay :PROGram? Queries the program numbers in the transport stream. Example: READ:ARR:PROG? 5–25 MTD200 MPEG Test Decoder User Manual...
Page 123 Queries the bit rate of an element in the MONitoring mode. Example: READ:PID:BITR? 100 Response: 4.0e6 The response is 4.0 Mbit/s. READ [:SCALar] :PID :CONDaccess? 0 to 8191 Queries whether the element is encrypted. Example: READ:PID:COND? 100 Response: 5–26 MTD200 MPEG Test Decoder User Manual...
Page 124 *RST value: Switches the audio outputs for AUDIO1/R on and off. Example: ROUT:AUD:RIGH ON ROUTe :AUDio :LEFT ON | OFF *RST value: Switches the audio outputs for AUDIO2/L on and off. Example: ROUT:AUD:LEFT ON 5–27 MTD200 MPEG Test Decoder User Manual...
Page 125 Example: SENS:SCON:LOCK 5 SENSe :SCONdition :DROP 1 to 7 *RST value: Sets the number of consecutive invalid data words required before the decoder detects a drop-out. Example: SENS:SCON:DROP 2 5–28 MTD200 MPEG Test Decoder User Manual...
Page 126 With all commands under this node, the report entries are read in the form of block data. HCOPy :REPort :DATA? This command reads out the print data report for the MONITORING/REPORT menu lines in the form of block data 5–29 MTD200 MPEG Test Decoder User Manual...
Page 127 Example: HCOP:SETT:DATA? Response: #512345DVMD... HCOPy :PROGram:DATA? This command reads out the print data of the contents of the applied transport stream in the form of block data. Example: HCOP:PROG:DATA? Response: #512345DVMD... 5–30 MTD200 MPEG Test Decoder User Manual...
Page 128 MEMory :SETTings1..10 :RECall Calls up the configuration from memory locations 1 to 10 Memory location 10 comprises the PRESET setting. Example: MEM:SETT1:REC MEMory :SETTings1..10 :NAME? Queries the name of a configuration. Example: MEM:SETT1:NAME? Response: DVMDTEST 5–31 MTD200 MPEG Test Decoder User Manual...
Page 129 SYSTem :COMMunicate :SERial [:RECeive] :BAUD 1200 | 2400 | 4800 | 9600 | 19200 *RST value: 9600 This command sets the baud rate. Example: SYST:COMM:SER:BAUD 9600 SYSTem :COMMunicate :SERial [:RECeive] :PARity [:TYPE] EVEN | ODD | NONE *RST value: NONE This command sets the parity bit. 5–32 MTD200 MPEG Test Decoder User Manual...
Page 130 SYSTem :ERRor? Queries the oldest entry in the error queue. Positive error numbers denote device-specific errors; negative error numbers denote error messages specified by SCPI (refer to SCPI-Specific Error Messages on page 5–63) 5–33 MTD200 MPEG Test Decoder User Manual...
Page 131 *RST value: ON This command selects the operating mode for the OSD: The menus are only displayed on the LCD. The menus are displayed simultaneously on the LCD and OSD. Example: DISP:OSD:MODE ON 5–34 MTD200 MPEG Test Decoder User Manual...
Page 132 This command includes the parameter in the trigger condition or clears it. Example: CONF:TRER:TRIG CCNT, ON CONFigure :TRERor :TRIGger[?] :ALL ON | OFF This command includes all parameters in the trigger condition or clears them. Example: CONF:TRER:TRIG:ALL ON 5–35 MTD200 MPEG Test Decoder User Manual...
Page 133 CONFigure :DUMP :STATe[?] PID | AF | AF_All | HEADer | ALL | OFF This command activates and deactivates the trigger with the specified filter condition: Only transport packets with a PID set with CONFigure:TRIGger:PID are read. 5–36 MTD200 MPEG Test Decoder User Manual...
Page 134 This commands reads the data of a transport stream packet once the number of the transport packets set with CONFigure:DUMP:COUNt is available in the dump memory. The data are output in the form of block data with a constant 5–37 MTD200 MPEG Test Decoder User Manual...
Page 135 Query only :ENABle 0 to 32767 :PTRansition 0 to 32767 :NTRansition 0 to 32767 :QUEStionable Query only :DVMD [:EVENt]? :CONDition? Query only :ENABle 0 to 32767 :PTRansition 0 to 32767 :NTRansition 0 to 32767 5–38 MTD200 MPEG Test Decoder User Manual...
Page 136 If a PTRansition bit is 1, the associated bit in the EVENt register is set upon transition of the CONDition bits from 0 to 1. The numeric response after loading the initial state (PRESET) is 32767. 5–39 MTD200 MPEG Test Decoder User Manual...
Page 137 Sets the positive transition filters of the CONDition bits of the STATus:QUES- tionable register. If a PTRansition bit is 1, the associated bit in the EVENt register is set upon transition of the CONDition bit from 0 to 1. 5–40 MTD200 MPEG Test Decoder User Manual...
Page 138 Sets the positive transition filters of the CONDition bits of the STATus:QUES- tionable:DVMD register. If a PTRansition bit is 1, the associated bit in the EVENt register is set upon transition of the CONDition bit from 0 to 1. 5–41 MTD200 MPEG Test Decoder User Manual...
Page 139: Figure 4-4: On Screen Display
Parameter Error MONITORING\STATISTICS name Parameter Reason info number MONITORING\REPORT ERROR TSSL TS_sync_loss TS SYNC Loss Sync_byte_error SYNC BYTE Single Multib PATE PAT_error Upper Dist. Tab_id Scrambled CCOE Continuity_count_error CONT COUNT Pack_order More_than_twice Lost_packt 5–42 MTD200 MPEG Test Decoder User Manual...
Page 140: Table 5-2: Parameter Names Of 2Nd Priority
Parameter Error MONITORING\STATISTICS name Parameter Reason info number MONITORING\REPORT ERROR TPEE Transport_error TRANSPORT CRCE CRC_error PCRE PCR_error Discont PCR_U PCR_L PCRA PCR_accuracy_error PCR ACCURACY PTSE PTS_error CATE CAT_error Tab_id Scrambling with- out CAT 5–43 MTD200 MPEG Test Decoder User Manual...
Page 141: Table 5-3: Parameter Names Of 3Rd Priority
PMT_L NIT_U NIT_L SDT_U SDT_L BAT_U BAT_L EIT_U EIT_L RST_L TDT_U TDT_L TOT_U TOT_L PIDU unreferenced_PID UNREF PID SDTE SDT_error Tab_id SDT_U EITE EIT_error Tab_id EIT_U RSTE RST_error Tab_id TDTE TDT_error Tab_id TDT_U 5–44 MTD200 MPEG Test Decoder User Manual...
Page 142: Table 5-4: Error Numbers For Device-Internal Actions
Error number POWER CONTROL START STOP CLEAr INPUT CHANGED RSERial FSERial FPARallel PARAMETER GROUP <parameter name> ON | OFF PROG MODE : SET PROG Program number PROG MODE AUTO PRESelected SENSe MONitoring TRERror DUMP 5–45 MTD200 MPEG Test Decoder User Manual...
Page 143: Table 5-5: Parameter Names For Monitor Limits
0.1 s to ––– 0.7 s 60.0 s PIDR PID Distance ––– ––– 0.1 s to ––– 0.5 s 60.0 s PDUD PID unref. Duration ––– ––– 0.1 s to ––– 0.5 s 60.0 s 5–46 MTD200 MPEG Test Decoder User Manual...
Page 144: Instrument Model And Command Processing
Data Set and Device The term “device hardware” refers to that part of the device which performs the Hardware measurement function. The data set contains all parameters required for setting the device hardware. 5–47 MTD200 MPEG Test Decoder User Manual...
Page 145: Table 5-6: Synchronization With *Opc And *Opc
– Waiting for service request (SRQ) *OPC? Writing a “1” into the buffer amplifier Addressing the device as a talker An example for command synchronization is given in Program Examples on page 5–68. 5–48 MTD200 MPEG Test Decoder User Manual...
Page 146: Status Reporting System
& & & & & & & to next higher register Summary bit 15 14 13 12 register & = logic AND = logic OR of all bits Figure 5–3: Status Register model 5–49 MTD200 MPEG Test Decoder User Manual...
Page 147 The EVENt register is continuously updated by the instrument. It can only be read by the user. Reading this register clears its contents. This register is frequently referred to as the overall register. 5–50 MTD200 MPEG Test Decoder User Manual...
Page 148 CONDition register of the next higher register. The instrument automatically generates the summary bit for each register. An event (for example, a missing input signal) may thus cause a service request through all hierarchical levels. 5–51 MTD200 MPEG Test Decoder User Manual...
Page 149: Figure 5–4: Overview Of Status Registers
Execution Error –&– Device Dependent Error –&– Query Error & = logic AND –&– free –&– Operation Complete = logic OR of all bits Error queue Output buffer Figure 5–4: Overview of Status Registers 5–52 MTD200 MPEG Test Decoder User Manual...
Page 150: Table 5-7: Definition Of Bits In The Status Byte Register
A set bit denotes a questionable device status which can be specified in greater detail by querying the QUEStionable Status Register. MAV bit (Message available) This bit is set if a readable message is in the output buffer. 5–53 MTD200 MPEG Test Decoder User Manual...
Page 151: Table 5-8: Definition Of Bits Used In The Event Status Register
This bit is set if a device-dependent error occurs. An error message with a number between –300 and –399 or a positive error number denoting the error in greater detail (see Error Messages of Remote-Control Interface on page 5–63) will be entered into the Error Queue. 5–54 MTD200 MPEG Test Decoder User Manual...
Page 152: Table 5-9: Definition Of Bits Used In The Status:operation Register
Waiting for TRIG This bit is set if the instrument is active in the Trigger on Error and DUMP mode. HCOPy This bit is set when the print function is active. 5–55 MTD200 MPEG Test Decoder User Manual...
Page 153: Table 5-10: Definition Of Bits Used In The Status:questionable Register
This bit is set if a PAT error is indicated in the MONITORING/STATISTICS menu. CCOE This bit is set if a CONT_COUNT error is indicated in the MONITORING/STA- TISTICS menu. PMTE This bit is set if a PMT error is indicated in the MONITORING/STATISTICS menu. 5–56 MTD200 MPEG Test Decoder User Manual...
Page 154 The RS-232 interface with the controller needs to be rated for these baud rates. The controller must be able to process the received data in time. To synchronize data transmission, hardware handshaking must be used. 5–57 MTD200 MPEG Test Decoder User Manual...
Page 155 Remote Control The connection between the MTD200 and the controller must be made using a null modem cable. Follow the instructions that are supplied with your RS-232 control program. Examples (see also Figure 5–3 on page 5–49 and Program Examples on page 5–68):...
Page 156: Table 5-12: Resetting The Device Functions
Clears output buffer Clears command processing and input buffer Any command that is the first one in a command line (that is, one that immediately follows a <PROGRAM MESSAGE TERMINATOR>) clears the output buffer. 5–59 MTD200 MPEG Test Decoder User Manual...
Page 157: Table 5-13: Set Of Commands
ON | OFF 5–35 CONFigure:TRERor:TRIGger:ALL ON | OFF 5–35 CONFigure:TRERor:TRIGger[?] <parameter name>, ON | OFF 5–35 DISPlay:OSD:MODE[?] ON | OFF 5–34 HCOPy:MONitoring:DATA? 5–29 HCOPy:REPort:LINES:DATA? 0 to 999, 0 to 999 5–30 MEMory:SETTing1...10:NAME? 5–31 MEMory:SETTing1...10:RECall 5–31 5–60 MTD200 MPEG Test Decoder User Manual...
Page 158 32 to 8191 5–24 SENSe:PROGram:VIDeo[?] 32 to 8191 5–24 SENSe:PROGram[?] 1 to 65535 5–24 SENSe:SCONdition:DROP[?] 1 to 7 5–28 SENSe:SCONdition:LOCK[?] 1 to 31 5–28 STATus:OPERation:CONDition? SCPI 5–39 STATus:OPERation:ENABle[?] 0 to 32767 SCPI 5–39 5–61 MTD200 MPEG Test Decoder User Manual...
Page 159 1900 to 2099, 1 to 12, 1 to 31 SCPI 5–33 SYSTem:DISPlay:CONTents[?] STATistic | REPort | PROGram | 5–34 INFO SYSTem:ERRor? SCPI 5–33 SYSTem:TIME[?] 0 to 23, 0 to 59, 0 to 59 SCPI 5–33 SYSTem:VERSion? SCPI 5–34 5–62 MTD200 MPEG Test Decoder User Manual...
Page 160: Table 5-14: No Error
Data type error Command contains an illegal data element. Example: numeric data were expected and ON was encountered. –105 GET not allowed A Group Execute Trigger (GET) was received within a program message. 5–63 MTD200 MPEG Test Decoder User Manual...
Page 161 –138 Suffix not allowed A suffix was encountered which is not allowed for this command or at this position in the command. Example: command SENSe:PROGram does not allow a suffix to be specified. 5–64 MTD200 MPEG Test Decoder User Manual...
Page 162: Table 5-16: Execution Error
Example: In the DUMP mode, monitoring cannot be started when MONITORING is selected. –222 Data out of range The data element was outside the legal range as defined by the device. Example: command SENSe:PROGram allows entries only in the range 1 to 65535. 5–65 MTD200 MPEG Test Decoder User Manual...
Page 163: Table 5-17: Device-Specific Error
Error code entered in the queue in lieu of the code that caused the error. This code indicates that there is no room in the queue and that the error occurred but was not recorded. Five of these codes are accepted in the queue. 5–66 MTD200 MPEG Test Decoder User Manual...
Page 164: Table 5-18: Query Error
Query UNTERMINATED The query is incomplete. Example: the device receives incomplete data. –430 Query DEADLOCKED The query cannot be processed. Example: both input buffer and output buffer are full and the device cannot continue. 5–67 MTD200 MPEG Test Decoder User Manual...
Page 165: Table 5-19: Definitions Of Library Calls
The controller must be able to process the received data in time. To synchronize data transmission, hardware handshaking must be used. The connection between the MTD200 and the controller must be made using a null modem cable. Follow the instructions that are supplied with your RS-232 control program.
Page 166 Example 1 This example illustrates a routine in which the connection to the MTD200 is made, the MTD200 signal is input, and the presence of a transport stream is checked. Then two routines are provided to read out error statistics (mode MONITORING) and transport stream data (mode DUMP).
Page 167 Remote Control 5–70 MTD200 MPEG Test Decoder User Manual...
Page 169: Maintenance
These instructions are for personnel who are familiar with servicing the product. If you need further details for disassembling or reassembling the product, contact your nearest Tektronix, Inc., Service Center or Tektronix Factory Service for installation assistance. WARNING. To prevent injury, avoid short circuiting or charging the battery, since this can cause the battery to explode.
Page 170: Figure 6–1: Removing Covers
Remove the top and bottom covers towards the rear (see Figure 6–1). – Figure 6–1: Removing covers 2. Removing the front panel: a. Undo the two trim screws on the front panel. 6–2 MTD200 MPEG Test Decoder User Manual...
Page 171: Figure 6–2: Front–Panel Screws
Figure 6–3: Withdrawing the module (Decoder board) 4. Opening the module: a. Unscrew the top RF cover of decoder board. b. Turn the instrument upside down. c. Unscrew the lower RF cover of decoder board. 6–3 MTD200 MPEG Test Decoder User Manual...
Page 172: Figure 6–4: Fixing Rf Cover
Cut terminals of the new battery as required and solder them (positive pole first). d. Insert new cable tie through openings and tighten. Battery – – Figure 6–5: Location and poles of battery 6–4 MTD200 MPEG Test Decoder User Manual...
Page 173: Checking
Upon power on, the instrument starts a BOOT procedure with a memory and hardware check. If a fault is detected, a message is displayed on the LCD. In the case of a total failure, send the instrument to your local service center. 6–5 MTD200 MPEG Test Decoder User Manual...
Page 174 Maintenance and Checking 6–6 MTD200 MPEG Test Decoder User Manual...
Page 176: Synchronous Parallel Transport Stream Input – Ts Parallel (Lvds)
Appendix A: Interfaces This appendix contains information about the MTD200 MPEG Test Decoder interfaces. Synchronous Parallel Transport Stream Input – TS Parallel (LVDS) A 25-pin D-type connector with the designation TS PARALLEL is provided on the front panel of the unit for connecting an MPEG2 transport stream with synchronous parallel data transmission (8-bit parallel).
Page 177 Data [0..7] DVALID PSYNC Transmission format with packets of 188 bytes Clock sync sync Data [0..7] DVALID PSYNC Transmission format with packets of 188 bytes and 16 dummy bytes (= 204 bytes) A–2 MTD200 MPEG Test Decoder User Manual...
Page 178: Asynchronous Serial Transport Stream Input – Ts Asi
(Y) and the chrominance signal (C). The connectors have an output impedance of 75 , the output level is 1 V – Y/C (10%) for the Y signal and 700 mVpp ( 10%) for the C signal. A–3 MTD200 MPEG Test Decoder User Manual...
Page 179: Audio Outputs
+6 dBu (default) and can be increased after opening the unit by repositioning two jumpers to +9/12/15 dBU (refer to Setting the Level of Analog Audio Outputs on page 3–9). A–4 MTD200 MPEG Test Decoder User Manual...
Page 180: Rs232 Interface – Com1
The transmission parameters are set in the SETUP/RS232 menu (refer to SETUP/RS-232 Menu on page 4–33). The following interface parameters can be selected: Table A–3: Transmission speed settings COM1 Transmission speed (Baud) 1200 2400 4800 9600 19200 A–5 MTD200 MPEG Test Decoder User Manual...
Page 181: Table A–4: Parity Settings Com1
Number of data bits Table A–6: Stop bit setting COM1 (fixed) Number of stop bits Table A–7: Pace settings COM1 Value for PACE Meaning none No special interface protocol XON/XOFF XON/XOFF protocol RTS/CTS Hardware handshake A–6 MTD200 MPEG Test Decoder User Manual...
Page 182: Table A–8: Control Characters Of The Rs-232 Interface
MPEG test decoder. The controller signals its ready-to-receive state to the MPEG test decoder in the same way. During the transmission of block data the software handshake is not possible because of the above-mentioned reasons. A–7 MTD200 MPEG Test Decoder User Manual...
Page 183: Figure A–1: Wiring Diagram For Software Handshake
The MPEG test decoder is connected with a controller by means of a null- modem cable. When this cable is used, the data, control and signalling lines have to be crossed. The following wiring diagram applies to a controller with a 9-pin or 25-pin connector. A–8 MTD200 MPEG Test Decoder User Manual...
Page 184: Figure A–2: Wiring Diagram For Hardware Handshake
25 pins decoder pin Signal RxD / TxD TxD / RxD DTR / DSR GND / GND DSR / DTR RTS / CTS CTS / RTS Figure A–2: Wiring diagram for hardware handshake A–9 MTD200 MPEG Test Decoder User Manual...
Page 185: Interfaces For Descrambling And Flash Rom Card
Address Bit 13 Address Bit 14 WE/PGM Write Enable RDY/BSY Ready/Bus (EEPROM) Supply voltage +5V VPP1 Programming voltage 1 Address Bit 16 Address Bit 15 Address Bit 12 Address Bit 7 Address Bit 6 A–10 MTD200 MPEG Test Decoder User Manual...
Page 186 Address Bit 17 Address Bit 18 Address Bit 19 Address Bit 20 Address Bit 21 Supply voltage +5V VPP2 Programming voltage 2 Address Bit 22 Address Bit 23 Address Bit 24 Address Bit 25 A–11 MTD200 MPEG Test Decoder User Manual...
Page 187: Table A–10: Pin Assignment Of Descrambling Card
Data Bit 6 Data bit 7 Card Enable 1 Address Bit 10 Output Enable Address Bit 11 Address Bit 9 Address Bit 8 Address Bit 13 Address Bit 14 WE/PGM Write Enable IREQ Interrupt Request A–12 MTD200 MPEG Test Decoder User Manual...
Page 188 Card Enable 2 MCLK MPEG Clock IORD I/O Read IOWR I/O Write MISTRT MPEG Input Data Start MDI0 MPEG Data In Bit 0 MDI1 MPEG Data In Bit 1 MDI2 MPEG Data In Bit 2 A–13 MTD200 MPEG Test Decoder User Manual...
Page 189 Register Select MOVAL MPEG Data Out Valid MOSTRT MPEG Data Out Start MDO0 MPEG Data Out Bit 0 MDO1 MPEG Data Out Bit 1 MDO2 MPEG Data Out Bit 2 Card Detect 2 Ground A–14 MTD200 MPEG Test Decoder User Manual...
Page 190: Table B–1: Input Signals
30 ns Return Loss 34 dB At front-panel CCVS connector: 30 dB (0 to 6 MHz) Frequency Response 0 to 3 MHz: +1%/ -2% (typ) <4 MHz : +1%/ -5% <5 MHz: +1%/ -15% B–1 MTD200 MPEG Test Decoder User Manual...
Page 191: Table B–4: Environmental Characteristics
2 g at 55 Hz, 0.5 g from 55 to 150 Hz Random: 10 to 300 Hz, 1.2 g Shock 40 g shock spectrum Complies with MIL-STD-810 C and MIL-T-28800 D class 3 and 5 B–2 MTD200 MPEG Test Decoder User Manual...
Page 192: Table B–5: Certifications And Compliances
CAT II Local-level mains (wall sockets). Equipment at this level includes appliances, portable tools, and similar products. Equipment is usually cord-connected CAT I Secondary (signal level) or battery operated circuits of electronic equipment B–3 MTD200 MPEG Test Decoder User Manual...
Page 193: Table B–6: Power Characteristics
Table B–6: Power Characteristics Characteristic Performance requirement Line Voltage 88 to 264 VAC Line Frequency 47 to 63 Hz Power Consumption 50 W Table B–7: Physical Characteristics Dimensions Height 1.75 Width 17.1 Depth 18.1 Weight 10.8 B–4 MTD200 MPEG Test Decoder User Manual...
Page 195 Personal Computer Memory International Association Packetized Elementary Stream Packet Identity Program Map Table Program Stream Program Specific Information Presentation Time Stamp Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying Service Description Table Service Information Stuffing Table Glossary–1 MTD200 MPEG Test Decoder User Manual...
Page 196 EIT. Conditional Access Table (CAT) The CAT is a PSI table and comprises information required for descrambling programs. It is transmitted in TS packets with PID 0x0002 and indicated by table_ID 0x01. Glossary–2 MTD200 MPEG Test Decoder User Manual...
Page 197 Entitlement Management Messages (EMM) EMM comprise information for the descrambler in the receiver of a CA system providing further details about the access rights of the customer to specific scrambled programs or broadcasts. Glossary–3 MTD200 MPEG Test Decoder User Manual...
Page 198 Null packets are TS packets by which the transport stream can be filled to obtain a specific data rate. Null packets do not contain any useful data and have the packet identity 0x1FFF. The continuity counter is undefined. Glossary–4 MTD200 MPEG Test Decoder User Manual...
Page 199 PCR jitter. It can be caused, for example, by an inaccurate PCR calculation during transport stream multiplexing or by the subsequent integration of null packets on the transmission path without PCR correction. Glossary–5 MTD200 MPEG Test Decoder User Manual...
Page 200 33 most significant bits of the PCR. According to MPEG2 PCRs have to be transmitted at intervals of max. 100 ms, according to the DVB regulations at intervals of max. 40 ms. Glossary–6 MTD200 MPEG Test Decoder User Manual...
Page 201 Service Description Table (SDT) The SDT is an SI table and contains the names of programs and broadcasters. It is transmitted in TS packets with PID 0x0011 and indicated by table_ID 0x42 or 0x46. Glossary–7 MTD200 MPEG Test Decoder User Manual...
Page 202 TS packet on the transmission path. As it is basically not possible to find the incorrect bits (eg the PID could also be affected), the errored packet must not be processed any further. Glossary–8 MTD200 MPEG Test Decoder User Manual...
Page 203 TS Packet The transport stream is transmitted in packets of 188 bytes (after channel coding 204 bytes). The first four bytes form the TS header which is followed by the 184 useful bytes. Glossary–9 MTD200 MPEG Test Decoder User Manual...
Page 204 Glossary Glossary–10 MTD200 MPEG Test Decoder User Manual...
Page 206 Index Index–1 MTD200 MPEG Test Decoder User Manual...
Page 207 Index Index–2 MTD200 MPEG Test Decoder User Manual...
Page 208 Index Index–3 MTD200 MPEG Test Decoder User Manual...
Page 209 Index Index–4 MTD200 MPEG Test Decoder User Manual...

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