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Instrument Tour

R&S

®

RTM2000

16

Getting Started 1317.4710.02 ─ 0101

The virtual screen has 20 vertical divisions, 8 of them are displayed. If many wave-
forms are active, you can distribute the waveforms over 20 divisions and turn the knob
to scroll the virtual screen. You can disable the virtual screen in the "Display" menu.
The virtual screen is available in the usual time domain window and in the zoom win-
dow.

3.1.2 MEASURE Keys

The MEASURE functional block provides the automatic and manual measurement
functions.

QUICK MEAS

Displays the results of basic automatic measurements for the selected channel in the
result table and directly on the waveform. For voltage measurements, these are: Vp+,
Vp-, Vpp, V RMS, mean, rise time tr, falling time tf, period T and frequency f.

Press the key again to hide the results.

Note: 

When you activate quick measurements, cursor measurements are automati-

cally deactivated, as well as the reference and math menus. Deactivate quick meas-
urements before selecting these functions. Channels other than the selected one are
switched off in quick measurement mode.

MEAS

Opens the "Measurement" menu, where you can configure up to 4 parallel measure-
ments. Available measurement types depend on the type of the selected waveform.

CURSOR

Opens the "Cursor" menu, where you can set up various manual measurements by
means of cursors.

3.1.3 NAVIGATION Controls

The rotary knob and the navigation keys support the data entry in various ways.

 

 

Front Panel

Содержание RTM2000

Страница 1: ...R S RTM2000 Digital Oscilloscope Getting Started Getting Started A_ 2 1317 4710 02 0101 Test Measurement ...

Страница 2: ...ery Rohde Schwarz would like to thank the open source community for their valuable contribution to embedded computing 2013 Rohde Schwarz GmbH Co KG Mühldorfstr 15 81671 München Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz G...

Страница 3: ...f the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safety instructions Using the product requires technical skills and in some cases a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained pers...

Страница 4: ... dangers Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided could result in minor or moderate injury Indicates information considered important but not hazard related e g messages relating to property damage In th...

Страница 5: ...not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the AC supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 In the case of product...

Страница 6: ...t be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 14 Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock 15 Any object that i...

Страница 7: ...e masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of their radiation and due to their extremely concentrated electromagnetic power If a laser product e g a CD DVD drive is integrated into a Rohde Schwarz product absolutely no other settings or functions m...

Страница 8: ...an permitted 5 If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 6 Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the matching Rohde Schwarz type see pa...

Страница 9: ... substances or fuels can cause health problems and lead to environmental damage For additional information about environmental protection visit the Rohde Schwarz website Instrucciones de seguridad elementales Es imprescindible leer y cumplir las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde Schwarz consiste en tener nuestros productos siempre al día...

Страница 10: ...e el uso del producto Deberán tenerse en cuenta todas las demás informaciones de seguridad como p ej las referentes a la protección de personas que encontrarán en el capítulo correspondiente de la documentación del producto y que también son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que distribuye el grupo de empresas Rohde Schwarz bajo la de...

Страница 11: ... producto se emplea de forma sinónima el término CUIDADO Las palabras de señal corresponden a la definición habitual para aplicaciones civiles en el área económica europea Pueden existir definiciones diferentes a esta definición en otras áreas económicas o en aplicaciones militares Por eso se deberá tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en combi...

Страница 12: ... la tensión preseleccionada en el producto coincida con la de la red de alimentación eléctrica Si es necesario modificar el ajuste de tensión también se deberán cambiar en caso dado los fusibles correspondientes del producto 2 Los productos de la clase de protección I con alimentación móvil y enchufe individual solamente podrán enchufarse a tomas de corriente con contacto de seguridad y con conduc...

Страница 13: ...r efectuadas por un electricista especializado 13 En el caso de dispositivos fijos que no estén provistos de fusibles interruptor automático ni otros mecanismos de seguridad similares el circuito de alimentación debe estar protegido de modo que todas las personas que puedan acceder al producto así como el producto mismo estén a salvo de posibles daños 14 Todo producto debe estar protegido contra s...

Страница 14: ...mpresario operador tiene la obligación de evaluar y señalizar las áreas de trabajo en las que exista un riesgo elevado de exposición a radiaciones 6 Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias tóxicas gases líquidos etc que pueden generar daños a la salud Por eso en caso de incendio deben usarse medidas adecuadas como p ej máscaras antigás e indumentaria de ...

Страница 15: ...or ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y baterías deben mantenerse limpias y secas Limpiar las conexiones sucias con un paño seco y limpio 3 Las celdas o baterías no deben cortocircuitarse Es peligroso almacenar las celdas o baterías en estuches o cajones en cuyo interior puedan cortocircuitarse por contacto recíproco o por contacto con otros materiales con...

Страница 16: ...ivos eléctricos usados no se deben desechar con los residuos domésticos sin clasificar sino que deben ser recogidos por separado Rohde Schwarz GmbH Co KG ha elaborado un concepto de eliminación de residuos y asume plenamente los deberes de recogida y eliminación para los fabricantes dentro de la UE Para desechar el producto de manera respetuosa con el medio ambiente diríjase a su servicio de atenc...

Страница 17: ...rument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde...

Страница 18: ... 2 2 2 Rackmounting 10 2 3 Starting the Instrument 11 2 3 1 Powering On 11 2 3 2 Starting Up and Shutting Down 11 2 3 3 Powering Off 12 2 3 4 EMI Suppression 12 2 4 Connecting External Devices 12 3 Instrument Tour 14 3 1 Front Panel 14 3 1 1 SETUP Controls 15 3 1 2 MEASURE Keys 16 3 1 3 NAVIGATION Controls 16 3 1 4 ANALYZE Keys 17 3 1 5 TRIGGER Controls 18 3 1 6 VERTICAL Controls 19 3 1 7 HORIZONT...

Страница 19: ...5 Operating the Instrument 41 5 1 Understanding Display Information 41 5 2 Working with Waveforms 43 5 3 Accessing the Functionality 44 5 4 Entering Data 45 5 5 Getting Help 46 6 Instrument Setup 48 6 1 Defining General Instrument Settings 48 6 1 1 Setting Data and Time 48 6 1 2 Configuring Sounds 48 6 1 3 Setting the Language 48 6 2 Performing a Self Alignment 49 6 3 Adjusting Passive Probes 49 7...

Страница 20: ...nsive functional set Besides the usual features known from similar scopes it has some very useful unique functions Digital trigger system many trigger types to capture closest successive events Quick measurements most important measurement results are available at a sin gle key stroke Sophisticated cursor measurements special measurement tpyes and features for quick and easy cursor positioning Acq...

Страница 21: ...bes all instrument functions in detail It provides an introduction to remote control and a complete description of the remote control commands with pro gramming examples Service Manual The Service Manual is available in PDF format on the Documentation CD ROM It describes how to check compliance with rated specifications instrument function repair troubleshooting and fault elimination It contains a...

Страница 22: ...g boxes menus options buttons and softkeys are enclosed by quotation marks KEYS Key names are written in capital letters File names commands program code File names commands coding samples and screen output are distin guished by their font Input Input to be entered by the user is displayed in italics Links Links that you can click are displayed in blue font References References to other parts of ...

Страница 23: ...ument is dry and shows no sign of condensation The instrument is positioned as described in the following sections The ambient temperature does not exceed the range specified in the data sheet Signal levels at the input connectors are all within the specified ranges Signal outputs are correctly connected and are not overloaded 2 1 Unpacking and Checking the Instrument To remove the instrument from...

Страница 24: ...strument is designed for use under laboratory conditions It can be used in standalone operation on a bench top or can be installed in a rack Risk of injury and instrument damage if stacking instruments A stack of instruments may tilt over and cause injury and material damage because the instrument s top surface area is too small Never stack instruments on top of each other If you need to stack ins...

Страница 25: ...rneath The feet can break if they are overloaded The overall load on the folded out feet must not exceed 200 N 2 2 2 Rackmounting The instrument can be installed in a 19 rack mount using a rack mount kit The order number of the rack mount kit is given in the data sheet The installation instructions are part of the rack mount kit Risk of instrument damage in a rack An insufficient airflow can cause...

Страница 26: ...pecify additional operating condi tions The AC power connector and the main power switch are located on the rear panel of the instrument 1 Connect the instrument to the AC power supply using the AC power cable deliv ered with the instrument 2 Switch the main power switch at the rear of the instrument to position I The POWER switch in the bottom left corner of the front panel lights up You can leav...

Страница 27: ...e POWER key on the front panel to shut down the instrument 2 Switch the main power switch at the rear of the instrument to position 0 3 Disconnect the AC power cable from the AC power supply Risk of losing data If you switch off the running instrument using the rear panel switch or by disconnecting the power cord the instrument loses its current settings Furthermore program data may be lost Always...

Страница 28: ...inter to print measurement results or a computer for remote control of the instrument All USB devices can be connected to or disconnected from the instrument during oper ation The instrument detects the USB device as soon as it is connected Connecting an external monitor You can connect an external monitor to the DVI D connector on the instrument s rear panel You can connect also a VGA monitor usi...

Страница 29: ...d the right of the display Fig 3 1 Front panel of RTM 2054 with 4 input channels 1 Display 2 SETUP controls 3 MEASURE keys 4 NAVIGATION controls 5 ANALYZE keys 6 TRIGGER controls 7 HORIZONTAL controls 8 VERTICAL controls 9 POWER key 10 Softkeys 11 Input channels 12 Connectors for USB and probe compensation The display and its information is described in chapter 5 1 Understanding Display Informatio...

Страница 30: ... the Setup menu where you can Set time reference language date and time and sound feedback Configure the printer Configure USB LAN and GBIP interfaces Perform self calibration and probe adjustment Install updates Get information on hardware in case of service Set up the trigger out pulse PRINT Starts printing or saving screenshots waveforms or settings according to the configu ration in FILE Print...

Страница 31: ...irectly on the waveform For voltage measurements these are Vp Vp Vpp V RMS mean rise time tr falling time tf period T and frequency f Press the key again to hide the results Note When you activate quick measurements cursor measurements are automati cally deactivated as well as the reference and math menus Deactivate quick meas urements before selecting these functions Channels other than the selec...

Страница 32: ...not possible after preset load and recall actions and creating a reference waveform REDO Recovers the undo steps in reverse order 3 1 4 ANALYZE Keys The keys in the ANALYZE functional block open various menus for signal analysis PROTOCOL LOGIC Opens the Protocol and Logic menus where you can select and configure serial interfaces and bus systems and configure digital channels for analysis If the P...

Страница 33: ...ONT Starts and stops the continuous acquisition A green light indicates a running acquisi tion A red light shows that acquisition is stopped The status is shown also at the right end of the information bar Run or Complete RUN Nx SINGLE Starts a defined number of acquisitions Press the key again to stop running acquisi tions To set the number of acquisitions press the ACQUISITION key and enter Nx S...

Страница 34: ... SETUP Opens the Trigger menu SOURCE Opens the Trigger Source menu for the A trigger Press the key repeatedly until the required source is selected The key lights up in the color of the selected trigger chan nel The selected source is shown in the information bar SLOPE If you have selected Edge trigger as trigger type with an analog trigger source the SLOPE key toggles the trigger slope The curren...

Страница 35: ...e setting is kept constant to simplify the zero setting Note By default offset is disabled Press Offset in the Channel menu to enable the offset SCALE Sets the vertical scale in Volts per division to change the amplitude of the selected channel math or reference waveform The current value is shown in the waveform label above the grid The knob lights up in the color of the selected waveform Turn SC...

Страница 36: ... window the rotary knob adjusts the time scale of the horizontal axis for all signals also known as time base Turn clockwise to stretch the waveforms the scale value time div decreases The current value is shown in the information bar it is the left most value indicated by TB If a zoom or FFT window is displayed press the knob to toggle between the windows and their horizontal parameters then turn...

Страница 37: ...emoved from the search result that is selected in the Event Table SEARCH Opens the Search menu where you can perform a search for various events in an acquisition for example peaks or specific width conditions and analyze the search results ACQUISITION Opens the Acquisition menu Here you control the data processing how the wave form is built from the captured ADC samples The current acquisition mo...

Страница 38: ...trument For detailed information refer to the documentation and safety information of the probe manufacturer Explanation Measuring circuits as defined in section 6 7 4 of EN 61010 1 Measuring category I is intended for measurements on circuits which are not connected to the mains system 3 1 9 Front Connectors The most important connectors are placed at the front panel PROBE COMPENSATION Probe comp...

Страница 39: ...here is no line voltage selector The AC main power switch disconnects the instrument from the AC power line LAN 8 pin connector RJ 45 used to connect the instrument to a Local Area Network LAN It supports up to 100 Mbit s USB TYPE B USB universal serial bus interface of type B device USB to be used for remote con trol of the instrument Note Electromagnetic interference EMI can affect the measureme...

Страница 40: ...the connector to ground creates current of 100 mA By default the trigger output is off To enable the trigger out signal select SETUP Trigger Output Output Here you can adjust also the polarity and the length of the pulse The default is a positive pulse of 1 μs GBIP Interface Option RTM B10 Interface for remote control with GBIP The option replaces the LAN USB type B inter face module on the rear p...

Страница 41: ...Instrument Tour R S RTM2000 26 Getting Started 1317 4710 02 0101 Fig 3 3 Right panel view of R S RTM Right Panel ...

Страница 42: ...ing Passive Probes on page 49 For configuration and measurements described in this chapter you use the internal calibration signal so you do not need any additional signal source or instruments Try out the following Displaying a Basic Signal 27 Zooming into the Waveform 28 Using the Virtual Screen 31 Showing Basic Measurement Results 32 Performing Cursor Measurements 34 Using Mathematical Function...

Страница 43: ...ng of the time base and signal amplitudes in order to enlarge the waveform If you want to see more details use the zoom function 1 Press the ZOOM key The key lights up and two windows are displayed the original signal vs time at the top the zoom window at the bottom In the title line of the zoom window Zoom Control mode is displayed Zooming into the Waveform ...

Страница 44: ...ut the Instrument R S RTM2000 29 Getting Started 1317 4710 02 0101 2 Turn the horizontal SCALE knob clockwise to see more details Note the zoom area that is marked in the upper window Zooming into the Waveform ...

Страница 45: ...2 0101 3 Press the horizontal SCALE knob until Time Control mode is displayed 4 Turn the horizontal SCALE and POSITION knobs The time base of the channel 1 waveform changes and the position of the zomm area too The zoom scale remains unchanged Zooming into the Waveform ...

Страница 46: ...visions are visible You can scoll the divisions to select the visible part 1 Press the AUTOSET key 2 Turn the vertical SCALE knob clockwise until the vertical scale is 100 mV div The scale value is displayed in the colored channel label on top of the window 3 Press the Intensity Virtual screen knob on the left until the Virtual Screen label is displayed 4 Turn the knob clockwise until the complete...

Страница 47: ...d channel can be displayed by pressing a single key QUICK MEAS The results are displayed either directly next to the waveform or in the result table beneath the diagram The results include mean and peak values as well as edge times and period length where available Quick measurements 1 Press the AUTOSET key 2 Press the QUICK MEAS key Showing Basic Measurement Results ...

Страница 48: ...waveform with those of a reference waveform In the following example you will determine the top and base levels of the first pulse in the signal The results are displayed in the result table below the diagram 1 Press the MEAS key 2 Press Meas Place until 1 is highlighted to select the first of the four measurement positions 3 Press Measure 1 until On is highlighted 4 Press Meas Type until Top Leve...

Страница 49: ...he quick and automatic measurements provide results for the entire visible waveform or at pre defined points a cursor measurement allows you to specify at which points in the diagram you require results Depending on the type of measure ment two or three cursors are positioned on the screen and the results for those points are displayed For example using the voltage time cursor measurement you can ...

Страница 50: ... knob to move the cursor line to the beginning of a pulse 5 Press the NAVIGATION rotary knob again to select the second cursor Turn the rotary knob to move the cursor line to the end of the pulse 6 Repeat the step to position the horizontal cursors The following results are displayed in the result table Δt pulse width t1 t2 time of the cursor positions measured from the trigger point ΔV difference...

Страница 51: ... Mathematics menu 2 Press Equation until MA1 is displayed to configure the first math waveform 3 Press Edit Equations The Equation Set Editor is displayed where you can see the configuration for each mathematical waveform The active equation is highlighted 4 Press Equation until MA1 is displayed to configure the first equation This equa tion is assigned to the first measurement channel MA1 5 Press...

Страница 52: ...cs menu The integral values of the signal channel are displayed as an additional waveform If necessary change the vertical scaling of the math waveform to improve the dis play using the vertical SCALE rotary knob 9 Press Unit until W Watt is highlighted to define the unit for the calculated power of the signal Using Mathematical Functions ...

Страница 53: ...cursor whose source is the first math waveform MA1 or Integral and position the cursors at the beginning and at the end of the pulse The procedure is described in the previous example chapter 4 5 Performing Cur sor Measurements on page 34 The integral between the two cursors is displayed as ΔV in the result table Using Mathematical Functions ...

Страница 54: ...the colors displayed on the screen for printing i e a dark waveform is printed on a white background 1 Attach a printer to the USB interface on the front or rear panel 2 Press the FILE key 3 Press the Screenshots softkey 4 Press Color Mode until Inverted is highlighted to print inverted colors 5 Press Print A screenshot of the current display is printed with a white background and black data Print...

Страница 55: ...evice and load the device settings again to repeat the initial measure ment 1 Press the FILE key then Device Settings 2 Press Save 3 Press Storage until Internal is selected to save the settings on the device 4 Press File Name and enter the name Example01 5 Press Accept The device settings are stored in a file named Example01 SET on the device 6 Press PRESET to reset the R S RTM to its default set...

Страница 56: ...ection Remote control Create programs to automatize repeating settings tests and measurements The instrument is connected to a computer that is running the pro gram This way of operation is described in the User Manual in the Remote Control chapter 5 1 Understanding Display Information Besides the waveforms the display of the instrument shows also information mea surement results and softkey menus...

Страница 57: ...nd reference waveforms show the vertical scale value and the coupling The label of the selected waveform is highlighted with the waveform color Windows The main window shows one or more waveforms channel waveforms reference and math waveforms The grid marks the vertical und horizontal divisions If zoom FFT or XY view is selected the display shows two or more windows The zoom FFT or XY trace appear...

Страница 58: ...guish the various waveforms The color of the vertical rotary knobs and the waveform label indicate the selected waveform the waveform that is focused Waveform states Depending on its display and the effect of settings a waveform has one of the follow ing states Off Active The waveform is shown Selected One of the active waveforms that has the focus All waveform specific settings are applied to the...

Страница 59: ...the function key once If a submenu of the mode is shown press the function key twice first to return to the main menu and second to close the display mode Press the Off softkey in the main menu of the mode Using menus A menu can have several menu levels If a lower menu level is available it is indicated by a small arrow on the softkey If a menu level has more than 7 functions they are arranged on ...

Страница 60: ...lose a selection menu immediately press the NAVIGATION knob Otherwise the selection menu closes automatically when the Menu Off time is expired Setup menu 5 4 Entering Data Numeric values are set with the NAVIGATION knob For scale and position settings use the corresponding rotary knobs Some numeric parameters for example DC Offset provide the choice between Off and a value These values can be set...

Страница 61: ...be entered turn the NAVIGATE knob until the required char acter is highlighted then press the knob 2 To delete the character to the left of the cursor in the input line press Backspace 3 To move the cursor within the input line press Cursor or Cursor 4 To delete the entire entry press Clear All 5 When you have completed your entry press Accept to store the input on the instrument 5 5 Getting Help ...

Страница 62: ...To show Help 1 Press the yellow HELP key on the left of the display The help window opens 2 Press the key or softkey for which you need information The content of the help window shows the description of the last used control To hide Help Press the HELP key again Getting Help ...

Страница 63: ...erated by the instrument 1 Press SETUP Sound 2 Press the softkey for the event types for which a sound is to be generated Active sounds are highlighted The following event types are available Control Beep Generates a sound for general control events e g reaching the rotary encoder end or changing the measuring mode in the Auto Measure menu Error Beep Generates a a sound if an error occurs in the i...

Страница 64: ...ke sure that the instrument has been running and warming up before you start the self alignment The minimum warm up time is indicated in the data sheet 1 Remove all signal lines from the channel connectors and external inputs 2 Press SETUP Self Alignment 3 Press Start to start the internal alignment 6 3 Adjusting Passive Probes R S RTM ZP10 passive probes are already pre compensated to the R S RTM...

Страница 65: ...ey The following frequencies are available 1kHz A square wave with a frequency of f 1 kHz is generated at the probe compensation pin Use this setting to adjust the LF band of the probe 1MHz A square wave with a frequency of f 1 MHz is generated at the probe compensation pin Use this setting to adjust the HF band of the probe Automatic A square wave is generated at the probe compensation pin The fr...

Страница 66: ...nment The addresses of Rohde Schwarz support centers can be found at www customer support rohde schwarz com A list of all service centers is available at www ser vices rohde schwarz com 7 1 Cleaning The outside of the instrument can be cleaned sufficiently using a soft lint free dust cloth Make sure that the fan openings are not obstructed Shock hazard Before cleaning the instrument make sure that...

Страница 67: ...ents and connectors from being damaged The antistatic packing foil avoids any undesired electrostatic charging to occur If you do not use the original packaging use a sturdy cardboard box of suitable size and provide for sufficient padding to prevent the instrument from slipping inside the package Wrap antistatic packing foil around the instrument to protect it from electro static charging 7 3 Rep...

Страница 68: ...e service or if the instrument is used in a secured environment consider the document Instrument Security Procedures that is delivered on the documentation CD ROM and on the R S RTM internet web page You can delete all current instrument configuration data and user data with SETUP More More Secure Erase OK Data Security ...

Страница 69: ...MI suppression 12 External trigger input 25 F FFT 18 FILE 15 FORCE 18 H HELP 15 Help usage 46 I Information bar 42 Information on display 41 Intensity 15 Interface Language 48 K Kensington lock 23 Keys ACQUISITION 22 AUTOSET 15 CH N 20 CURSOR 16 DISPLAY 15 FFT 18 File 15 HELP 15 MATH 20 MEAS 16 NEXT 21 PRESET 15 PREV 22 PRINT 15 QUICK MEAS 16 REDO 17 REF 20 SETUP 15 SIGNAL OFF 20 UNDO 17 ZOOM 21 L...

Страница 70: ...r 19 Shut down 11 SIGNAL OFF 20 SLOPE 19 Sounds 48 SOURCE trigger 19 Standby state 11 Start up 11 Storing 52 Switch off Instrument 12 Switch on Instrument 11 Switching off Waveform 43 Switching on Waveform 43 T Time 48 TOOLS 17 Trigger Auto normal 18 Edge trigger slope 19 External input 25 Force 18 Level 19 Mode 18 Output 25 Setup 19 Source 19 U UNDO 17 USB Connecting 13 Connector 23 24 Flash driv...

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