MGP 464 MGP 464 DI MGP 464 HD-SDI Multi-Graphic Processor 68-1235-01 Rev.
Precautions Safety Instructions • English Warning This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.
FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Table of Contents Chapter One • Introduction . ..................................................................................................... 1-1 About This Manual ..................................................................................................................... 1-2 About the MGP 464 Multi-Graphic Processor ............................................................ 1-2 Features . ....................................................................................................
Table of Contents, cont’d Comm./IP Configuration menu .............................................................................................. 3-17 Viewing serial port and IP settings .................................................................................... 3-17 Making changes to the serial port and IP configuration ................................................. 3-18 Advanced Configuration menu .............................................................................................
Using the Configuration Page . ........................................................................................... 5-4 Configuring the inputs ......................................................................................................... 5-5 Naming inputs ................................................................................................................. 5-5 Selecting the video signal type ......................................................................................
Table of Contents, cont’d Chapter Six • Special Applications ....................................................................................... 6-1 Application 1: Connecting the MGP 464 to a Matrix Switcher . ..................... 6-2 Setting up the MGP to work with the switcher ................................................................... 6-3 Using the MGP and the matrix switcher after the MGP is synchronized to the matrix switcher ...............................................................
1 Chapter One Introduction About This Manual About the MGP 464 Multi-Graphic Processor Features Application Diagrams PRELIMINARY MGP 464 Multi-Graphic Processor
Introduction About This Manual This manual discusses how to install, configure, and operate the Extron MGP 464 multi-graphic processor. Throughout this manual, the terms “MGP 464”, “MGP”, “multi-graphic processor”, and “processor” are used interchangeably to refer to all models of the product. About the MGP 464 Multi-Graphic Processor The MGP 464 is a four-window RGB and video signal processor that can display up to four video sources on a single screen in picture-in-picture or picture-by-picture format.
3:2 pulldown detection for NTSC video and 2:2 film detection for PAL — These advanced film mode processing features help maximize image detail and sharpness for video sources that originated from film. When film is converted to NTSC video, the film frame rate has to be matched to the video frame rate in a process called 3:2 pulldown. Jaggies and other image artifacts can result if conventional deinterlacing techniques are used on film-source video.
Introduction, cont’d Application Diagrams The following application diagrams show examples of how devices may be connected to the MGP 464 and the MGP 464 DI. Remote User and Administration Control Camera Control System TCP/IP Network DVD LAN R UT TP OU B/ B-Y COLLEGE ST. ANAHEIM EAST 57 BLVD. LN AV. LINCO V OS Extron AV. CERRIT ST.
Camera Control System TCP/IP Network BLVD. EIM COLLEGE AH 57 ST. ANAHEIM EAST STATE AN AV. OS Extron AV. CERRIT R , B-Y , R-Y B/Y RG Anaheim Stadium WEST ST. BALL OU B/ B-Y LA nd Disneyla ST. RD. UT TP /422 232 RS- HASTER LAN LEWIS ST. 5 RD. BLVD. LN LINCO DOUGLAS DVD AV.
PRELIMINARY Introduction, cont’d 1-6 MGP 464 • Introduction
2 Chapter Two Installation Installation Overview Mounting the MGP 464 Installing or Replacing Button Labels Rear Panel Features PRELIMINARY MGP 464 Multi-Graphic Processor
Installation Installation Overview The MGP 464 processor can be connected to as many as 19 input devices simultaneously, and up to two output devices. Follow these steps to install the MGP 464: 1 Disconnect power to the MGP, and turn off all other devices that will be connected. 2 If desired, mount the MGP. See “Mounting the MGP 464,” below.
• Circuit overloading — When connecting the equipment to the supply circuit, consider the connection of the equipment to the supply circuit and the effect that circuit overloading might have on overcurrent protection and supply wiring. Consider equipment nameplate ratings when addressing this concern. • Reliable earthing (grounding) — Maintain reliable grounding of rackmounted equipment.
Installation, cont’d Installing or Replacing Button Labels The button caps are pre-labeled for your convenience by default. However, you can replace them with button labels that you create, using the Button-Label Generator or other button label software. PRELIMINARY The button assembly consists of a clear lens cap, the button label, and a white diffuser. (See the illustrations at right and below.) Remove the button assembly from the MGP as follows: 2 Pry the button from the base. 1.
Rear Panel Features The diagram below show the rear panel of the MGP 464 DI, which has four DVI-I input connectors, and the MGP 464 HD-SDI, which has two HD-SDI and two DVI-I input connectors. The standard MGP 464 does not have these DVI/HD-SDI input connectors (although it does have DVI Output and DVI Background connectors). In all other respects the rear panels are identical for all three models.
Installation, cont’d b Virtual inputs (inputs 5 through 19) — Connect standard definition component video, S-video, and/or composite video sources to these BNC connectors. The 15 connectors for the virtual inputs are arranged in columns of three BNCs.
Pin RS-232 function – Tx Rx – Gnd – – – – No connection Transmit data Receive data No connection Signal ground No connection No connection No connection No connection Pin RS-422 function 1 2 3 4 5 6 7 8 9 – TxRx– Gnd – Rx+ Tx+ – Description No connection Transmit ground Receive ground No connection Signal ground No connection Receive data Transmit data No connection N The MGP 464 also has an RS-232-only Config port on a 2.5 mm TRS connector on the front panel.
Installation, cont’d You must also configure the LAN port before using it. You can do this by using SIS commands (see “Command/response table for SIS commands” in chapter 4, “Software Configuration and Control”) or by using the Comm./IP Configuration menu on the front panel (see “Comm./IP Configuration menu” in chapter 3, “Operation”). PRELIMINARY LAN port defaults: • MGP’s IP address: 192.168.254.254 • Gateway IP address: 0.0.0.0 • Subnet mask: 255.255.0.
DVI inputs — Connect up to four (MGP 464 DI) or two (MGP 464 HD-SDI) DVI input sources to these DVI input connectors, as an alternative to using the fully-configurable BNC input connectors (a). These inputs are available only on the MGP 464 DI and MGP 464 HD-SDI models, which have the DVI card installed. k HD-SDI inputs — (MGP 464 HD-SDI only) Connect up to two HD-SDI inputs to these HD-SDI input connectors.
PRELIMINARY Installation, cont’d 2-10 MGP 464 • Installation
3 Chapter Three Operation Front Panel Features Power-up and Default Cycle Input Selection Window Select Buttons Menus, Configuration, and Adjustments Picture Controls Auto Memories Memory Presets Additional Features PRELIMINARY MGP 464 Multi-Graphic Processor
Operation You can set up and operate the MGP 464 by using: • The front panel controls • A computer, a touch screen panel, or any other device that can send and receive serial communications through either serial port or through the LAN port. Settings can be adjusted through the host computer using Extron’s Simple Instruction Set (SIS™) or the Windows-based control software. • A computer or other device using an Ethernet connection and IP protocol (Telnet or a Web browser).
The virtual input buttons are arranged in five columns of three buttons each, reflecting the arrangement of the virtual input connectors on the rear panel. 4 Window Select buttons — Press these buttons to select, activate, or adjust one of the four windows. While a window is selected, all picture controls are associated with it. 5 Window Preset buttons — Press the Preset Recall/Save and Enter buttons to save or recall window presets. See “Window Presets,” later in this chapter, for more information.
Operation, cont’d 9DBF-2.5mm TRS cable_031504.eps 6 feet (1.8 m) 1 Part #70-335-01 6 9 5 Tip Ring Sleeve (Gnd) 9-pin D Connection TRS Plug Pin 2 Pin 3 Pin 5 Computer's RX line Computer's TX line Computer's signal ground Tip Ring Sleeve Optional 2.5 mm connector cable for the front panel Config port PRELIMINARY See chapter 4, “Software Configuration and Control,” for details about using the configuration software and the SIS commands to configure the MGP.
Window Select Buttons The MGP 464 front panel contains four Window Select buttons. Use these buttons in conjunction with the Input buttons to specify which window displays an input, or use them with the picture control buttons to specify which window/image will be adjusted. When you select a picture control, the window whose button was previously selected is affected. (See “Picture Controls,” later in this chapter, for information on the available controls.
Operation, cont’d Menus, Configuration, and Adjustments The MGP 464’s menus enable you to configure the processor. The menu navigation buttons (Menu and Next) are located to the lower left of the LCD screen. Press these buttons to cycle through the available menu and submenu options. Menu system overview The MGP 464’s menu system consists of a main menu with nine options (menus). Each of these nine menus has a set of submenus, which enable you to make desired adjustments. (See the diagram on page 3-7.
Extron MGP 464 Vx.xx Multi-Graphic Processor 2 sec. 2 sec. Default Cycle Menu Auto Image 20 sec. Menu Input Configuration 20 sec. Menu Output Configuration PRELIMINARY Power on 20 sec. Menu Window Configuration 20 sec. Menu Background Capture 20 sec. Menu Comm. / IP Configuration 20 sec. Menu Advanced Configuration 20 sec. Menu Menu Exit Menu Press Next 20 sec.
Operation, cont’d Auto Image menu The Auto Image menu causes the MGP 464 to perform an automatic image adjustment in the selected window. Auto Image measures where the active area starts and stops, and adjusts input sampling accordingly, so that the image fills the window. When an input is connected, the processor measures the sync frequencies of the incoming video source and sets the active image area, total image area, and sampling frequency according to a table stored on the MGP.
Input Configuration menu The Input Configuration menu allows you to select a video signal type for each of the four fully configurable inputs. All of these inputs can accept the following video signals: RGB, YUV-HD, YUVi, RGBcvS, S-video, composite video, DVI (MGP 464 DI and MGP 464 HD-SDI only), and HD-SDI (MGP 464 HD-SDI only); RGB is the default.
Operation, cont’d Input configuration submenu adjustments The table below shows how to make the selections and adjustments that are accessed through the Input Configuration submenus. Input Configuration submenu Horizontal Knob Adjustment Vertical Knob Adjustment Video type Select input #1, 2, 3, or 4.
Horizontal Knob Adjustment Vertical Knob Adjustment Pixel phase 3 Select input #1, 2, 3, or 4 for window 3. Increase or decrease the displayed value to move the pixel sampling point for window 3 to an optimal sampling point that ensures output clarity. The range of settings is 0-31; default is 16. Select input #1, 2, 3, or 4 for window 4. Increase or decrease the displayed value to move the pixel sampling point for window 4 to an optimal sampling point that ensures output clarity.
Operation, cont’d Resolution and Refresh Rate submenu While this submenu is displayed, rotate the horizontal Adjust ([) knob to select one of the available resolutions, or rotate the vertical Adjust ({) knob to select one of the available refresh rates. The resolutions and refresh rates are listed in the following table.
Sync Polarity submenu The display device may require a particular combination of horizontal (H) and vertical (V) sync signal polarities. Rotate either the horizontal Adjust ([) or the vertical Adjust ({) knob to select the sync polarity. The options are H-V-, H+V-, H-V+, H+V+, or NA (appears when YUV Bi-lvl or YUV TriLvl is selected). The default is H-V-.
Operation, cont’d Window Border submenus Use these submenus (one for each window) to select colored borders for the four windows. Turn either Adjust knob to display the available options: Red, Green, Blue, White, Magenta, Cyan, Yellow, and Black. You can also select Off, which specifies no border. The defaults are Red for window 1, Green for window 2, Blue for window 3, and Magenta for window 4.
Square wipe — A square wipe causes the new window to appear to unroll over the other one in one of two ways: • In from the top, bottom, right, and left edges to the center of the window • Out from the center to the four edges of the window This effect creates a square shaped transition. A square wipe can have a soft (fuzzy) or a hard (sharp) leading edge.
Operation, cont’d Background Capture menu The Background Capture menu allows you to capture the image currently on the output screen and save it as a bitmap (.bmp) file with one of 16 designated image names. You can then recall the image and use it as a background. Background Capture also can be done via the Windows-based control software (see chapter 4, “Software Configuration and Control”) and the MGP 464 Web pages (see chapter 5, “HTML Configuration and Control”).
4. Press the Next button to save the image as a bitmap (.bmp) file. The LCD screen displays the message “[Detail] = Confirm.” N The unit supports 24-bit bitmap files only. Their file names must have no more than 16 characters, including the .bmp extension. C 5. The image that you save overwrites any existing image file with the same file name. Press the Detail button (the top button located at the immediate left of the LCD screen). The LCD screen displays the message “Save Background to Mem.
Operation, cont’d Making changes to the serial port and IP configuration To make changes to the serial port configuration, IP address, DHCP mode, Gateway address, and/or Subnet mask, you must access the edit level screens as follows: 1. With any Comm./IP Configuration menu view-level screen displayed, press the Enter button and hold it until the Serial Config screen appears (approximately 2 seconds). 2. Press Next repeatedly to cycle through the edit level screens. 3.
Advanced Configuration menu Use the Advanced Configuration menu to set the background color, turn blue mode on and off, and select test patterns. You can also view the MGP’s internal temperature and reset the system to its factory default settings. Comm. / IP Configuration Menu Next Background Color None Next Rotate either Adjust knob to adjust the submenus.
Operation, cont’d Test Pattern submenu Several test patterns are available via this submenu to adjust the display device for color, convergence, focus, resolution, contrast, grayscale, and aspect ratio. Use either Adjust knob to select a test pattern. The available patterns are: • Colorbars (8 color bars) • X-Hatch (16 x 12 crosshatch) • 4x4 X-Hatch (4 x 4 crosshatch) • Grey Scale (grayscale) • Ramp • Alt.
Internal Temperature screen The Internal Temp submenu displays the unit’s current internal temperature. The MGP 464 displays the temperature in degrees Fahrenheit and Celsius. This is an information-only screen; no adjustments can be made on it. Factory Default submenu This submenu lets you reset the MGP 464 to the default settings with which it was delivered from the factory. Press the Detail button to initiate the reset.
Operation, cont’d Picture Controls table The following table explains the functions of the Picture Control buttons and how to make adjustments. (In the Display column, n stands for a single digit, 0 through 9.) Button Display Function WINDOW_n SIZE: H=nnnn V=nnnn Window/ Image Size (Press button twice.) Enlarge or shrink IMAGE #nn SIZE: the image within the H=nnnn V=nnnn window.
Auto Memories Whenever changes are made to the settings described in the previous pages, the MGP automatically saves the changes in memory. These settings are saved based on the input frequency and are later recalled when the identical resolution is applied to the configured input. These memory locations are separate from the input presets.
WINDOW PRESET Saving To #001 Operation, -----Input1----WINDOW PRESET cont’d #001 SAVED 4. Press the Enter button to save the current window setting in the preset WINDOW PRESET location that you selected. The LCD screen shows a message indicating that PRESET Save To #001 WINDOW the preset is being saved to the selected memory location, followed by a Recall woINP message that#001 the preset has been saved. The following examples show a preset saved to memory location 1.
Default presets The following figure shows the factory default preset window configurations. These presets can be used for any output rate. If you overwrite them, you can recover them by selecting Factory Defaults from the Advanced Configuration menu. (See “Advanced Configuration menu,” earlier in this chapter.
Operation, cont’d N The 128 input presets are global, containing all of the settings for an input when the MGP is used with a matrix switcher. This allows a matrix switcher with multiple types of video inputs to be connected to the MGP 464 to expand the number of input video sources.
Mode Activation Result Purpose/Notes 1 Hold in the recessed Reset button (located next to the LAN connector) while applying power to the unit. Mode 1 causes the MGP to revert to the factory default firmware. Event scripting does not start if the unit is powered on in this mode. All user files and settings are maintained. Use mode 1 to remove a version of firmware if incompatibility issues arise. 3 Hold in the Reset button for 3 seconds, until the Reset LED blinks once.
PRELIMINARY Operation, cont’d 3-28 MGP 464 • Operation
4 Chapter Four Software Configuration and Control Setting Up RS-232/422 Communication Using Simple Instruction Set (SIS) Commands Windows®-based Control Software PRELIMINARY MGP 464 Multi-Graphic Processor
Software Configuration and Control The MGP 464 can be configured and controlled by software via the following interfaces: • RS-232 or RS-422 (Simple Instruction Set [SIS™] commands or Windows®based control software) • LAN (Web pages, SIS commands, or Windows-based control software) This chapter discusses the use of the SIS commands and how to access the Windows-based control software. For instructions on using the Windows-based control software, refer to the software's Help program.
N The cables used to connect the RS-232/422 port to a computer or control system may need to be modified by removing pins or cutting wires. If unneeded pins are connected, the processor may hang up. software Communication There are several programs that enable you to connect the MGP 464 to a computer or control device via the RS-232/422 interface, and to enter commands. HyperTerminal for Windows is one such program that is commonly used on PCs.
Software Configuration and Control, cont’d Error responses When the MGP 464 receives a valid SIS command, it executes the command and sends a response to the host device. If the processor is unable to execute the command because the command is invalid or contains invalid parameters, it returns an error response to the host.
• There are a few differences in how to enter the commands depending on whether you are using Telnet or a Web browser. • For control via a Web browser, all non-alphanumeric characters must be represented as the hexadecimal equivalent, %xx, where xx represents the twocharacter hex byte. For example, a comma (,) would be represented as %2C. • When using these commands through a Web browser, the URL reference is used to shorten the examples.
Software Configuration and Control, cont’d Symbol definitions ] } = CR/LF (carriage return/line feed) (hex 0D 0A) = Carriage return (no line feed) (hex 0D) For Web browser commands, use the pipe character (|) instead of the soft return. • = | = E= X1% = X1& = X1* = X1( = Hardware (MAC) address (xx-xx-xx-xx-xx-xx) Escape key (hex 1B) For Web browser commands, use W instead of E.
X3% = X3^ = Daylight saving time (used in the northern hemisphere [USA] and parts of Europe and Brazil) 0 = off/ignore 1 = on in northern hemisphere 2 = on in Europe 3 = on in Brazil Event number, range = 0 - 99 Event buffer 0 = receive 1 = user 2 = NVRAM X3& = Event buffer offset (range = 0 to MaxBufferSize) X3* = Event data size b = bit B = byte (8 bits) S = short (16 bits) L = long (32 bits) N X3( = X4! = X4$ = X4% = X4^ = X4& = X6* = No-password login level 1 through 11 = Entry with
Software Configuration and Control, cont’d PRELIMINARY Advanced picture settings value (Range is the auto-sensed value ±512 lines or pixels.) X51* = Window dissolve speed; 0 to 5 seconds in 0.1 second increments (e.g., 01 = 0.1 second; 50 = 5.0 seconds) X51( = X52) = Internal temperature in degrees Fahrenheit X52! = Image/Window shift value (Zero location is 2048, and limits are ± the output resolution.) Example: Front panel displays +50, but the response to the SIS command is 2098.
Command/response table for SIS commands (continued) Command ASCII (Telnet) Response X50) * X50@ ! X50@ ! Out X50@ • In X50) ] X50) * X50# \ X50) \ X50) Typ X50# ] X50# ] Set input X50) to format X50#. 41 * X50* * X51% # DDC X50* * X51% ] Set the DVI input EDID resolution to X50* and the refresh rate to X51%. X50* = the scaler resolution.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Response Mute window X50@ * 1B X50@ Blk1] Blank (mute) window(s) X50@ using a selected transition effect. X50@ = 0 through 4; 0 = all windows. Unmute window X50@ * 0B X50@ Blk0 ] View blanking status X50@ B X% ] Display (unmute) window(s) X50@ using a selected transition effect. View the window blanking status: 0 = off; 1 = on.
Command/response table for SIS commands (continued) Command ASCII (Telnet) (host to processor) Response (processor to host) Additional description Window preset effect N For information on setting the two available transition effects for window presets, refer to the MGP 464 Windows-based control software help. Select effect 19 # X52$ # Wpe X52$ ] Set the window preset transition effect to X52$. For X52$: 0 = Cut 1 = Real time motion View the current preset transition effect.
PRELIMINARY MGP 464 • Software Configuration and Control Command ASCII (Telnet) Response Specific value X50@ * X51) D X50@ Det X51) ] Increment detail level X50@ + D X50@ – D X50@ D X50@ Det X51) ] X50@ Det X51) ] X51) ] (host to processor) (processor to host) Additional description Detail filter Decrement detail level View detail value Set detail (sharpness) level for window X50@ to X51). X50@ = 0 through 4; 0 = all windows. X51) = 0 through 127. Select next higher sharpness level.
Command/response table for SIS commands (continued) ASCII (Telnet) Response Specific value 2 * X50@ * X52! / X50@ Ivp X52! ] Set vertical centering of the image in window X50@ to X52!. X50@ = 0 through 4; 0 = all windows. For X52!: 0 = 2048; limits are ± the output resolution. Increment vertical image shift 2 * X50@ + / 2 * X50@ – 2 * X50@ / X50@ Ivp X52! ] X50@ Ivp X52! ] X52! ] Shift image in window X50@ up. Decrement vertical image shift Set the width of window X50@ to X52@.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Response Specific value 2 * X50@ * X52# ; X50@ Ivs X52# ] Set the height of the image in window X50@ to X52#. X50@ = 0 through 4; 0 = all windows. For X52#: Minimum = 1/16 the size of the active input area. Maximum = double the active output area for 200% zoom.
Command/response table for SIS commands (continued) Command ASCII (Telnet) (host to processor) Response (processor to host) Additional description Image size and position Set image size and position E X50@ , X52! * X52! * X52# * X52# I Y } Ixy X50@ , X52! * X52! * X52# * X52# ] MGP 464 • Software Configuration and Control Set position and size of the image in window X50@. X50@ = 0 through 4; 0 = all windows. For X52!: 0 = 2048; limits are ± the output resolution.
PRELIMINARY MGP 464 • Software Configuration and Control Command ASCII (Telnet) Response Recall input preset 3 * X50@ * X51$ . Rpr 3 * X51$ ] Recall input preset X51$ to window X50@. X50@ = 0 through 4; 0 = all windows. X51$ = 1 through 128. Save input preset 3 * X50@ * X51$ , Spr 3 * X51$ ] Save the input settings for window X50@ to input preset X51$. E X50) , X50^ NI } Nmi X50) , X50^ ] Create a text label containing name X50^ for input X50). X50) = 1 through 19. X50^ = up to 16 characters.
Command/response table for SIS commands (continued) ASCII (Telnet) Response Specific value X50) * X51@ ) Hst X50) * X51@ ] Increment horizontal start value X50) + ) Hst X50) * X51@ ] Decrement horizontal start value X50) – ) Hst X50) * X51@ ] View horizontal start setting X50) ) X51@ ] Command (host to processor) (processor to host) Additional description Horizontal start Set the horizontal position of the first active pixel in the active window (input X50)) to X51@. X50) = 1 through 19.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Response Specific value 13 * X50) * X51& # Aln X50) * X51& ] Increment active lines value 13 * X50) + # Aln X50) * X51& ] Set the active lines value for the input X50) to X51&. X50) = 1 through 19. X51& = Auto-sensed value ± 512 lines or pixels. Select the next higher active lines value. Decrement active lines value 13 * X50) – # 13 * X50) # Aln X50) * X51& ] Select the next lower active lines value.
Command/response table for SIS commands (continued) ASCII (Telnet) Response Set test pattern X50$ J Tst X50$ ] View test pattern J X50$ ] Enable executive mode 1X Exe 1 ] Enable executive mode 2 2X Exe 2 ] Disable executive mode 0X Exe 0 ] Lock front panel control except for the input buttons; allow RS-232/422 and Ethernet control. Lock all front panel controls including input buttons; allow RS-232/422 and Ethernet control. Unlock all front panel controls.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Response Query firmware version Q Query part number View internal temperature N 20S x.xx ] 60-771-01 or 60-771-02 Command (host to processor) (processor to host) Additional description Information requests (continued) View the firmware version number. View the MGP's part number. X51( ] View internal temperature X51( in degrees Fahrenheit.
Command/response table for SIS commands (continued) ASCII (Telnet) Response Text size 10 * X\ # Tsz X\ ] View text size 10 # Text border color 14 * X50@ * X\ # X\ ] X50@ Txb X\ View text border color 14 * X50@ # X\ ] Text color 16 * X50@ * X\ # X50@ Txc X\ ] Set the color of the text in the label in window X50@ to X\.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Response Window border color 9 * X50@ * X\ # X50@ Brd X\ ] Set the color of the border around window X50@ to X\. X50@ = 0 through 4; 0 = all windows. For X\: 0 = Off (no border) 5 = Magenta 1 = Red 6 = Cyan 2 = Green 7 = Yellow 3 = Blue 8 = Black 4 = White View window border color 9 * X50@ # X\ ] View the current border color in window X50@.
Command/response table for SIS commands (continued) ASCII (Telnet) Response Enable film mode 18 * X50) * 1 # X50) Flm 1 ] Enable film mode for input X50). (Auto-senses for 3:2 or 2:2 pull-down.) X50) = 1 through 19. Disable film mode 18 * X50) * 0 # X50) Flm 0 ] Disable film mode for input X50). (Blocks the deinterlacer from using either pull-down method.) View film mode status 18 * X50) # 0 ] (off) or 1 ] (on) View the current film mode setting for input X50).
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) Command (host to processor) URL Encoded (Web) (host to processor) Response (Processor to host) Additional description Bi-directional serial data port E X! * X1& * X2) * X2! RS } X@ W X! %2A X! % %2A X2) Send data string N %2A X2! RS | X@ Response from command ] X! = Port number (01-99). X1& = Time in tens of milliseconds that the MGP will wait until receipt of the first response character before terminating the command.
Command/response table for IP SIS commands (continued) ASCII (Telnet) Command URL Encoded (Web) Response E X! * X2( CY } W X! %2A X2( CY | Cpn X! • Cty X2( ] E X! CP } E X! * X3) , X3! CF } W X! CY | X2( ] (host to processor) (host to processor) (Processor to host) Additional description Bi-directional serial data port (continued) Configure mode24 View mode Configure flow control 24 Select serial mode X2( for port X!. X! = 01 through 99.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) URL Encoded (Web) Response Set current connection port timeout E 0 * X6( TC } W 0 %2A X6( TC| Pti 0 * X6( ] View current connection port timeout E 0TC } E 1 * X6( TC } E 1TC } W 0TC| X6( ] Pti 1 * X6( ] X6( ] Command (host to processor) (host to processor) (Processor to host) Additional description Ethernet data port Set global IP port timeout View global port timeout W 1 %2A X6( TC| W 1TC| Set number of seconds (in
Command/response table for IP SIS commands (continued) Command ASCII (Telnet) (host to processor) URL Encoded (Web) Response 4Q X1! (plus web ver.-desc-UL date/time) ] 4Q Use this command to find out which version of the firmware, if any, was uploaded into the unit after it left the factory. X1! = firmware version to two decimal places. With tagged response – verbose modes 2 and 3: Ver04 * X1! (plus web ver.-desc-UL date/time) ] 2.02 * (1.
PRELIMINARY MGP 464 • Software Configuration and Control Command ASCII (Telnet) (host to processor) URL Encoded (Web) (host to processor) Response (Processor to host) Additional description Event control Read event buffer memory27 E X3% , X3^ , X3& , X3* E } W X3% , X3^ , X3& , X3* E| X5$ ] Write event to memory buffer24 27 Read the contents of a specific section of a memory buffer for event number X3%. X3% = event number, 1 through 99. X3^ = event buffer.
Command/response table for IP SIS commands (continued) Command ASCII (Telnet) URL Encoded (Web) Response E 1AE } E 0AE } E AE } W 1AE| Ego ] Initiate all programmed events. W 0AE| Est ] Stop all programmed events.
PRELIMINARY MGP 464 • Software Configuration and Control ASCII (Telnet) URL Encoded (Web) Response Set unit name24 E X1@ CN } W X1@ CN| Ipn • X1@ ] Change the processor's name to X1@, a name of your choosing. For X1@: The name can consist of up to 24 alphanumeric characters (and the minus sign/ hyphen). The first character must be a letter, the last character cannot be a minus sign. Case does not matter.
Command/response table for IP SIS commands (continued) Command ASCII (Telnet) URL Encoded (Web) Response E X3$ CX } W X3$ CX| Ipx X3$ ] (host to processor) (host to processor) (Processor to host) Additional description IP setup commands (continued) Set daylight saving time24 X3$ is the daylight saving time of day. MGP 464 • Software Configuration and Control Daylight saving time (DST) is a one-hour offset that is observed in the USA and parts of Europe and Brazil.
PRELIMINARY MGP 464 • Software Configuration and Control Command ASCII (Telnet) (host to processor) URL Encoded (Web) Response (host to processor) (Processor to host) Additional description IP setup commands (continued) Set administrator password E X3# CA } W X3# CA| Ipa • X4! ] Set administrator access password X3#. X3# = 4 to 12 alphanumeric characters. The password is case sensitive. Special characters (spaces or symbols) are not allowed. X4! = password displayed as four asterisks (****).
Command/response table for IP SIS commands (continued) ASCII (Telnet) URL Encoded (Web) Response E EP } E CK } W EP| W CK| X6^ * X6* ] X5@ ] Set Verbose mode24 E X2@ CV } W X2@ CV| X2@ ] Read connection's security level E CK } W CK| X5@ ] Command (host to processor) (host to processor) (Processor to host) Additional description IP setup commands (continued) View read-only security level support24 Query session security level View status and level of no-password security.
PRELIMINARY MGP 464 • Software Configuration and Control Command ASCII (Telnet) URL Encoded (Web) Response E 0MH } E MH } E {port#} MD } E 2001MD } E 0MD } E MD } W 0MH| Pmh 00000 ] W MH| {port#} ] W {port#} MD| Pmd {port#} ] W 2001MD| Pmd 02001 ] W 0MD| Pmd 00000 ] W MD| {port#} ] E CC } W CC| Number of connections E DF } W DF| (See below.) W LF| (See below.
Command/response table for IP SIS commands (continued) Command ASCII (Telnet) URL Encoded (Web) Response E X1$ , X1% CM } W X1$ %2C X1% CM| Ipm • X1$ , X1% ] W X1$ %2C X1% CM| X1$ , X1% ] (host to processor) (host to processor) (Processor to host) Additional description Mail server setup commands Set mail server IP, unit domain name24 X1$ = IP address, format xxx.xxx.xxx.xxx. X1% = mail domain name.
Software Configuration and Control, cont’d Windows®-based Control Software The MGP 464 Windows-based control software program provides a convenient way to configure the inputs, output, windows, and images in each window. It also lets you save and recall input and window presets, and perform nearly all the other functions that can be accomplished via the front panel controls, the SIS commands, or the MGP 464 Web pages.
3. In the table on the Control Software screen, scroll to locate the MGP 464, and click the Install link in the far right column. 4. On the File Download window that appears, click Run to begin installing the program.
Software Configuration and Control, cont’d If you want to save the installation file (MGP464Setupvn_n.exe) to your desktop to run later, click Save instead of Run. On the Save As window, save the setup file to the desired location on your PC. When you are ready to install the software, double-click on the MGP464SW1xn.exe icon, click Run on the Security prompt, and restart the procedure at step 4. 5. Another Security prompt appears. Click Run on this window to continue with the installation. 6.
Starting the control program The MGP 464 software help program provides information on settings and on how to use the control program itself. 1. To run the MGP 464 configuration program, do either of the following: • Double-click on the MGP464.exe file, located on your computer at c: \Program Files\Extron\MGP464. • Access the program from the Start menu on your computer as follows: a. Click Start on your computer screen. b. Select All Programs from the Start menu. c.
Software Configuration and Control, cont’d 3. • TCP/IP: Enter your MGP’s IP address, Telnet port (the default is 23), and a password if desired. • RS-232/422: Select your PC’s communication port from the Port menu, and the baud rate from the Speed menu. All other parameters are preset. Click OK. After a few seconds, the MGP 464 main window opens. PRELIMINARY 4. On the selected tab, enter the information required for the type of communication you chose. MGP 464 window 5.
5 Chapter Five HTML Configuration and Control Accessing the Web Pages Viewing System Status Using the Configuration Page Using the File Management Page Using the Control Page Using the Background Page PRELIMINARY MGP 464 Multi-Graphic Processor
HTML Configuration and Control The MGP 464 can be controlled and configured using HTML Web pages accessed over a network or from a local PC connected to the MGP 464’s LAN port. The MGP 464 has factory-installed HTML Web pages that allow you to select and configure inputs, adjust picture controls, configure windows, save and recall presets, and perform other processor functions. Access these HTML pages using a Web browser such as Microsoft Internet Explorer.
5. If you entered the filename for a custom HTML page in step 4, the browser displays that page. If not, the browser displays the System Status page, which is the MGP 464’s default start page. You can select the tabs at the top of this screen to display additional screens that enable you to configure and operate the MGP 464. Viewing System Status PRELIMINARY The System Status Web page on the Status tab provides information on your MGP 464’s current settings.
HTML Configuration and Control, cont’d Using the Configuration Page There are six Configuration Web pages, which only administrators can access. These pages are listed in the sidebar menu at the left of the Configuration screen. The following sections describe the changes you can make from these screens. System Settings screen PRELIMINARY On the System Settings screen (shown below), you can set date and time parameters, and change the IP information for the MGP 464.
Scaler I/O Settings screen PRELIMINARY On the Scaler I/O Settings screen (shown below), you can specify configuration settings for the 4 fully configurable inputs, the 15 virtual inputs, and the output. You can also select a test pattern and enable or disable blue mode.
HTML Configuration and Control, cont’d To change the name of an input, 1. On the Scaler I/O Settings screen, select and delete the text in the box under the desired input number. 2. Enter a name of up to 16 characters for the input. The following characters may be used: Symbols: : / – _ + “ Numerals: 0 through 9 Letters: Lowercase a through z, uppercase A through Z Spaces also can be used.
Test pattern — YouMGP can select one of the test patterns shown below to adjust the 464 Test Patterns display for color, convergence, focus, resolution, contrast, grayscale, and aspect ratio. X-Hatch (16x12) 4x4 X-Hatch Grey Scale Ramp Alt. Pixels White Field Crop 4x3 4x3 16x9 4x3 16x9 4 x3 4 x3 4 x3 Side-By-Side (16x9 crop) Side-By-Side (4x3 crop) Quad Split PIP Images (4x3) 1.85 Aspect 2.35 Aspect PRELIMINARY x Colorbars (8) 4 x3 16x9 4 x3 4 x3 PIP Images (16x9) 1.
HTML Configuration and Control, cont’d Window Settings screen PRELIMINARY The Window Settings screen, shown below, enables you to specify various parameters for windows 1, 2, 3, and 4. Window Settings screen The following fields are provided: Window Selection — Select one of the window radio buttons in this section to specify the window for which you are changing parameters. The All button selects all the windows, enabling you to quickly specify the same parameters for all four of the windows.
Border — In this section you can make selections from the following menus to specify parameters for the text label or for the border on the selected window. You can specify a different color for each window if desired. Window Border Color: Select a color for the border around the entire window display. The defaults are Red, Green, Blue, and Magenta for windows 1, 2, 3, and 4, respectively. Off specifies that there is no window border.
HTML Configuration and Control, cont’d Passwords screen The Passwords screen lets you assign an administrator and/or user password to control access to the MGP 464 Web pages. N An administrator password must be in place before a user password can be assigned. PRELIMINARY N Passwords must contain 4 to 12 alphanumeric characters. Symbols and spaces are not allowed, and the passwords are case sensitive. Passwords screen Assigning a password To assign passwords, 1.
Email Alerts screen The Email Alerts screen enables you to set up the MGP 464 to automatically send e-mail alert messages when any of its settings are changed. You can enter up to 64 e-mail addresses to alert recipients that an event has occurred. PRELIMINARY You can also specify that SMTP (Simple Mail Transfer Protocol) authorization is needed for the MGP to accept incoming e-mail. This prevents spam from taking up space in the MGP’s e-mail system.
HTML Configuration and Control, cont’d Setting up SMTP authorization To set the MGP to require SMTP authorization before accepting any e-mail, 1. To enable the SMTP authorization fields, click the Edit button at the right of the Mail IP Address field. The Edit button changes to Save. 2. Select the SMTP Authorization Required check box, located below the Domain Name field. This enables the User Name and Password fields below the check box. 3.
Downloading the firmware 1. Visit the Extron Web site (www.extron.com) and click the Download tab. 2. On the Download Center page, click the Firmware link on the left sidebar. 3. On the Firmware page, scroll down to the “MGP 464” line, or click the letter M in the alphabet displayed across the top of the page. 4. Click the Download link located at the far right of the MGP 464 line. 5. On the next page, fill in the required information, then click the Download_MGP464_FWnxnn.exe button.
HTML Configuration and Control, cont’d 3. Open the firmware file. Its name appears in the field below the Current Firmware Version on the Firmware Upgrade screen. 4. Click the Upload button on the Firmware Update screen to start the firmware update process. While the firmware is being uploaded, the Upload button changes to Uploading...
Uploading files Names of files to be uploaded to the MGP 464 must contain only valid alphanumeric characters and underscores. No spaces or special characters (symbols) are allowed. To upload files from the server, 1. Click the Browse button to the right of the file name field. 2. Browse to locate the file that you want to upload, and open it. The file’s name and directory path are displayed in the file name field on the File Management screen. 3. Click the Upload File button.
HTML Configuration and Control, cont’d Using the Control Page The screens that you can access through the Control page enable you to configure the windows and images, select inputs, and manage window and input presets. Picture Controls screen PRELIMINARY The Picture Controls screen allows you to configure and control the MGP 464 windows and the images within them. You can also select the input for each window.
Auto — Click this button to perform an automatic image adjustment to the selected window. The MGP measures where the active area starts and stops, and adjusts input sampling accordingly, so that the image fills the window. When you click Auto, the processor measures the sync frequencies of the incoming video source and sets the active image area and sampling frequency. If an unknown input is connected to the MGP, the processor measures and estimates the resolution of the incoming video.
HTML Configuration and Control, cont’d Window Controls The Window Controls section contains five sets of controls that enable you to make some adjustments to the selected window on the display. In the Horizontal and Vertical Center and Size fields, you can make adjustments by entering a number in the text box or by clicking the arrow buttons. The Zoom control can be adjusted only by arrow buttons.
Horizontal Start Location — Specify the distance in pixels from the left edge of the selected input’s total video display area to the left edge of its active area. The default is 128. Vertical Start Location — Specify the distance in lines from the top edge of the selected input’s total video display area to the top edge of its active area. The default is 128. Color — Adjust the intensity of the colors in the selected window. (At the lowest adjustment, all colors appear as shades of gray.
HTML Configuration and Control, cont’d Presets screen PRELIMINARY On the Presets screen, you can name, save and recall window presets; and save and recall input presets. Presets screen Window Presets A window preset is a file containing all the settings that have been specified for the windows. The MGP 464 has 128 preset memory locations, in which it can store up to 128 window presets. Presets save information for all four windows.
Default presets The MGP 464 is delivered with 30 different default window presets, which are stored in the MGP’s 128 preset memory locations. (Because there are more memory locations than presets, each default preset is stored in at least two locations.) The following figure shows the factory default preset window configurations. These presets can be used for any output rate. If you overwrite them, you can recover them by selecting Factory Defaults from the Advanced Configuration menu.
HTML Configuration and Control, cont’d Saving (creating) a window preset To save all the current window settings as a preset, 1. From the Select Preset menu, select the preset number to which you want to save the current settings for all the windows. 2. Click Save Preset. Recalling a window preset To recall a saved preset and enable all its settings, 1. From the Select Preset menu, select the name of the preset that you want to recall. 2.
In the Input Presets section, you can do the following: Saving (creating) an input preset To save all the settings for the currently selected input as a preset, 1. Select a Window Selection radio button to specify the window whose group of settings for the current input will be saved as a preset. 2. From the Input Preset menu, select a preset number to which you want to save the input’s settings. 3. Click Save Preset. 1.
HTML Configuration and Control, cont’d Displaying a background image An image can be displayed as a background behind the windows on the output screen. This can be done by uploading a bitmap image to the MGP and selecting it by using the Add and Take buttons. Using a DVI input To use the unscaled image from a DVI source as a live background on the output screen, 1. Connect a DVI source to the DVI Background connector on the rear panel. 2. From the Background Color menu, select DVI Background Input.
Selecting a background image To select an uploaded image to be displayed as the background on the output screen, 1. In the Image Index section, click on the thumbnail of the image you want to display. A larger version of the selected image appears to the right. PRELIMINARY 2. Click Take to select that image for the output background.
PRELIMINARY HTML Configuration and Control, cont’d 5-26 MGP 464 • HTML Configuration and Control
6 Chapter Six Special Applications Application 1: Connecting the MGP 464 to a Matrix Switcher Application 2: Connecting Multiple MGP 464s in Succession (Daisy-chaining) PRELIMINARY MGP 464 Multi-Graphic Processor
Special Applications This chapter describes some special types of applications that represent unique conditions. For the MGP 464 to operate properly in these situations, it is important that it be configured correctly. On the following pages, two application examples are described, along with their requirements for the MGP 464.
In this type of configuration, the following occurs: • On the MGP, window 1 displays input 1, window 2 displays input 2, and so forth. • Input switches are made at the matrix switcher instead of at the MGP. • Input presets are recalled on the MGP to correctly set up the input coming from the switcher. This setup can include the video signal type; picture controls; advanced input configuration functions such as setting the active lines/pixels, total lines/pixels, and pixel phase; and the input name.
Special Applications, cont’d 5. Repeat step 4 for every input on the matrix switcher that will be displayed on the output screen via the MGP, saving the settings for each input as Input Preset 2, 3, etc. N Each input preset must be saved with the same number as the input on the matrix switcher. PRELIMINARY 6. Synchronize the MGP 464 to the matrix switcher as follows: a. Open the Windows-based control software. b. From the Tools menu, select Sync MGP 464 to Matrix Switcher... .
Using the MGP and the matrix switcher after the MGP is synchronized to the matrix switcher After you have performed step 6, above, be sure to do the following when using the MGP with the switcher: • Set up the inputs so that MGP window 1 always displays input 1, window 2 displays input 2, window 3 displays input 3, and window 4 displays input 4. • Perform all input switching using the matrix switcher.
Special Applications, cont’d Application 2: Connecting Multiple MGP 464s in Succession (Daisy-chaining) By connecting multiple MGP 464s together in succession (“daisy-chaining”) via the DVI Output and DVI Background connectors, you can display up to 12 windows on the output screen. You can connect up to three MGPs in this way. (See the diagrams on the next page.) Connecting via the DVI Background connector has the advantage of the input not being scaled.
1. 8 Window Configuration MGP 464 Unit B Output rate = any factory rate 1B 3B MGP 464 Unit A DVI out Output rate = DVI background rate DVI BKG in DVI output from first MGP output to DVI background input 2B 4B 4 video windows on output display 1A 2A 3A 4A 1B 2B 3B 4B To display Output display with the 4 windows from unit B, and the 4 windows from unit A laid on top 2.
Special Applications, cont’d 3. Configure the output as follows: a. Set the output resolution/refresh rate of the first MGP (the unit farthest from the display) to your output display’s native rate. N Do not set this unit to the DVI background rate. b. Set the output rates of the second and, if appropriate, the third MGP to “DVI Background Rate.
A Appendix A Specifications, Part Numbers, and Accessories Specifications Part Numbers and Accessories PRELIMINARY MGP 464 Mult-Graphic Processor
Specifications, Part Numbers, and Accessories PRELIMINARY Specifications Number/signal type ��������������������� 4 VGA-UXGA DVI, RGBHV, RGBS, RGsB, RsGsBs, RGBcvS, component video (interlaced or progressive), S-video, composite video 4 to 15 (configurable) component video (interlaced), S-video, or composite video 4 single link DVI digital video (MGP 464 DI only) 2 HD-SDI digital video, 2 single link DVI digital video (MGP 464 HD-SDI only) Inputs 1-4 ���������������������������������������� (4) x 5 female
Standards ���������������������������������������� NTSC 3.58, NTSC 4.43, PAL, SECAM, SMPTE 292M Input level ������������������������������������� 0.0 V to 5.0 Vp-p Output level ����������������������������������� 0.6 Vp-p for component video (tri-level sync) TTL: 5.
Specifications, Part Numbers, and Accessories, cont’d Part Numbers and Accessories Included parts These items are included in each order for an MGP 464: Included parts Replacement part number MGP 464 60-771-01 MGP 464 DI 60-771-02 MGP 464 HD-SDI 60-771-03 Rack mounting brackets kit 70-155-01 IEC power cord Rubber feet, self-adhesive MGP 464 User’s Manual PRELIMINARY Windows-based control software on CD-ROM Optional accessories These items can be ordered separately: Accessory A-4 Part number
B Appendix B Firmware Update Guide Determining the Firmware Version Downloading the Firmware Updating the Firmware PRELIMINARY MGP 464 Multi-Graphic Processor
Firmware Upgrade Guide Updates to the Extron MGP 464 Multi-Graphic Processor firmware are made available periodically via the Extron Web site. If the need arises, you can replace the MGP 464’s main firmware via an IP connection without opening the unit. Determining the Firmware Version There are three ways to check which version of firmware the MGP 464 is using: view the front panel LCD window during power-on, view the System Status page of the MGP 464’s embedded Web pages, or select About MGP...
Example of an Enter Network Password dialog box a. Enter the appropriate administrator password in the Password field. 5. b. If desired, select the check box to have the system input your password the next time you enter your MGP 464’s IP address. c. Click OK. The System Status page or your custom start page opens. Access the System Status page if it is not already displayed. The firmware version is listed in the System Description area, on the third line, to the right of the part number.
Firmware Upgrade Guide, cont’d Using the Windows-based configuration software PRELIMINARY A third way to find out the firmware version is to access the MGP 464 Windowsbased configuration software. 1. Open the configuration software. (See “Windows®-based Control Software,” in chapter 4, for the procedure.) 2. From the Help menu, select About... . The following screen appears, providing information about the current MGP version. About... screen 3.
Updating the Firmware After you have installed the new firmware on your computer, you must upload it to the MGP 464. Firmware uploads can be performed via a Web browser, the MGP 464’s internal Web pages, or the Firmware Loader software. The computer and the MGP 464 must both be connected to an Ethernet network in order to update the main firmware.
Firmware Upgrade Guide, cont’d Firmware Upgrade screen PRELIMINARY 4. Click Browse to open the Choose file window, and locate the firmware file on your computer or server. The file extension must be .S19. C Uploading a file with an incorrect extension may cause the unit to stop working. Choose file window with firmware file selected 5. B-6 Open the firmware file. Its name appears in the field below the Current Firmware Version on the Firmware Upgrade screen.
6. Click the Upload button on the Firmware Update screen to start the firmware update process. While the firmware is being uploaded, the Upload button changes to Uploading...; and the LCD window on the MGP displays first “Firmware Upload Please Wait!!!,” then “Firmware Reboot Please Wait!!!” N While the firmware is uploading and rebooting, do not press any front panel buttons or make any selections on the Web pages. When the uploading process is complete, the Uploading...
Firmware Upgrade Guide, cont’d 4. Double-click on the firmware file icon. The firmware uploading process begins. While the firmware is loading, a progress bar is displayed: Firmware update progress bar 5. When the firmware update is complete, the progress bar closes. Updating using the Firmware Loader An alternative way to update the MGP’s firmware is to download and run the Firmware Loader software. PRELIMINARY 1. Download the Firmware Loader installer executable file to your computer. a.
6. • RS-232 tab — From the drop-down menus, select the appropriate COM port number (obtained from your system administrator) and baud rate (the default is 9600). • TCP/IP tab — Enter your MGP’s IP address (obtained from your system administrator), Telnet port (the default is 23), and, if required, password. In the Select a firmware file field on the next screen, enter the path to the new MGP firmware file on your computer, or click Browse to locate and open it.
PRELIMINARY Firmware Upgrade Guide, cont’d B-10 MGP 464 • Firmware Upgrade Guide
Extron’s Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
Extron USA - West Headquarters +800.633.9876 Inside USA / Canada Only +1.714.491.1500 +1.714.491.1517 FAX Extron USA - East Extron Europe Extron Asia Extron Japan Extron China Extron Middle East +800.633.9876 +800.3987.6673 +800.7339.8766 +81.3.3511.7655 +81.3.3511.7656 FAX +400.883.1568 +971.4.2991800 +971.4.2991880 FAX +1.919.863.1794 +1.919.863.1797 FAX +31.33.453.4040 +31.33.453.4050 FAX +65.6383.4400 +65.6383.
