System 7SC System Switcher 68-499-01 Printed in the USA
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock. Warning Power sources • This equipment should be operated only from the power source indicated on the product.
Table of Contents Chapter 1 • Introduction ....................................................................................................... 1-1 About this Manual ............................................................................................................. 1-2 About the System 7SC ...................................................................................................... 1-2 What is the System 7SC? .............................................................................
Table of Contents, cont’d RGB Delay (Triple-Action Switching™) .............................................................................. 3-10 Scaler Blue Out .................................................................................................................. 3-10 Edge Smoothing ................................................................................................................ 3-11 Add Slave (slaving switchers) ..................................................................
Appendix A • Appendix ........................................................................................................ A-1 Specifications ....................................................................................................................... A-2 Part Numbers and Accessories .................................................................................... A-5 Included parts .............................................................................................................
Table of Contents, cont’d iv System 7SC • Table of Contents
System 7SC 1 Chapter One Introduction About this Manual About the System 7SC Features and Options
Introduction About this Manual This manual discusses how to install, operate and configure Extron’s System 7SC switcher and how to operate the IR 701 infrared remote control that is included with the System 7SC. For information on installing and operating related accessories, see the user’s guides for the following products: Extron’s Power Sensor (part #68-391-01), IR Broadcaster (part #68-392-02); and the SCP/AAP A, SCP 200, and SCP 250 control pads (part #68-511-01).
The System 7SC scales composite video, S-video, and component video up to computer-video (RGBHV/RGBS/RGsB), which can be output to two display devices via individually buffered BNC and 15-pin HD ports. The System 7SC offers one fixed level (preamp) stereo audio output and one variable level stereo audio output.
Introduction, cont’d Features and Options Features 350 MHz (-3dB) video bandwidth Configurable video inputs — • Inputs 1 to 6 — Six sets of 5 BNC connectors on the rear panel accept RGBHV/RGBS/RGsB computer video, component video, S-video or composite video input, and are individually configurable. • Input 7 — Input 7 (on the front panel) includes a VGA-type 15-pin HD connector for RGB computer video input, a 4-pin mini DIN connector for Svideo input, and one RCA connector for composite video input.
Triple-Action Switching™ — With this method, a blank screen is displayed while the System 7SC switches between inputs. Built-in video scaler — This feature scales all composite, S-video and component video signals up to computer-video rates for output on RGB display devices. Accu-RATE Frame Lock™ — The Extron Accu-RATE Frame Lock™ (patent pending) eliminates artifacts from scaled motion video by eliminating frame rate conversion. It locks the output frame rate to the input frame rate of the active input.
Introduction, cont’d 1-6 System 7SC • Introduction
System 7SC 2 Chapter Two Installation Mounting the Switcher Cabling and Panel Views Connecting and Slaving a Switcher Labeling Buttons on the System 7SC and SCPs
Installation Mounting the Switcher Tabletop use The System 7SC comes with rack mounting brackets and rubber feet. For tabletop use, attach a self-adhesive rubber foot to each corner of the bottom of the unit. Rack mounting For rack mounting, do not install the rubber feet. Attach the provided rack mounting brackets to the switcher with machine screws, as shown below, then fasten the switcher to the rack using the supplied machine screws.
CONTROL DISP PWR DISP MUTE MODE ROOM 1 ROOM 2 COLOR TINT BRIGHT CONT DETAIL ADJUST VOLUME MENU 1 2 3 4 5 6 7 NEXT DISPLAY INPUT 7 VIDEO VIDEO S-VIDEO S-VIDEO AUDIO LL COMPUTER IR RX LEARN TX RX RR SYSTEM 7SC System 7SC Front Panel Laptop Computer Laptop Computer Current Sensor AC Power POWER SENSOR Display Power Sensor Document Camera RGB 440 Plasma Display VCR Projector OUTPUTS INPUTS Anaheim, CA 100- 240 50/60 Hz 1.3A MAX.
Installation, cont’d Power, video, and audio conections With the exception of input 7 on the front panel, all input and output connectors are on the rear panel. Front panel inputs Input 7 on the front panel accepts video and one audio input. Only one video format and one audio port will be active at a time on the front panel.
Input 7 is buffered and can drive a signal approximately 50 feet (15 meters) using Extron cable. Rear panel inputs 1 2 INPUTS Anaheim, CA 100- 240 50/60 Hz 1.3A MAX.
Installation, cont’d 3 Audio inputs 1 through 6 — Each input has a 3.5 mm, 5-pole captive screw connector for balanced or unbalanced stereo audio input. Connectors are included with each System 7, but the user supplies the audio cable. See the following wiring diagrams to wire a connector for the appropriate input type and impedance level. High impedance is generally over 800 ohms.
2 Adjustable level audio output (Variable) — For adjustable level audio output, connect an audio device, such as an amplifier, or mixer, to this 3.5 mm, 5-pole captive screw connector. Follow the diagram and warning shown in 1 for correct wiring. See chapters three and four for details on perchannel input gain adjustments and on audio breakaway. The overall level for this output is controlled by the front panel Volume knob.
Installation, cont’d Control device connections Captive screw and 3.5 mm stereo jack connectors are included with the switcher, but the installer provides the cables.
3 Room/relay ports (Relay 1, Relay 2) — These allow control of “room” functions – items such as room lighting, window coverings, and display screens – via momentary or latching contact. These contacts may be used to control any equipment as long as the contact specifications of a total of 24 volts at 1 ampere are not exceeded for each port.
Installation, cont’d The pin assignments are as follows: A B C D E Signal Display power/current sensor detection Carrier & signal Gnd +12V Wire the connector using one of the following wiring options.
Tx A B CD E F GH I J PROJ CONTROL NOTE I H G F E D C B A Each projector/display may require different wiring. For wiring details, see the UC cable wiring and pin assignments illustration, and refer to the manual that came with the projector. * * * * Ground (Gnd, ) * Transmit (Tx) * * To / from projector We recommend using the UC 50’ universal projector control cable (included with the System 7SC) for this connection.
Installation, cont’d The default protocol is 9600 baud, 1 stop bit, no parity, and no flow control. The rear panel RS-232 9-pin D connector has the following pin assignments: Pin RS-232 function 1 2 3 4 5 6 7 8 9 – Tx Rx Tx 2 Gnd – – Rx 2 – Description No connection Transmit data Receive data Transmit data Signal ground No connection No connection Receive data No connection 5 1 9 6 DB9 Pin Locations Female Pins 4 and 8 (Tx2 and Rx2) are used to communicate with a slaved switcher (if one is connected).
System 7SC Rear Panel OUTPUTS INPUTS Anaheim, CA 100- 240 50/60 Hz 1.3A MAX.
Installation, cont’d 3. For a System 8 PLUS or System 10 Plus switcher, set the slaved switcher to master mode. On the slaved System 8 PLUS or System 10 Plus switcher, locate the Address DIP switches on the back panel, and set switches #1, 2, 3, 4, and 5 up. 4. Power on the slaved switcher and the System 7SC. 5. From within Add Slave? in the System 7SC’s Switcher Setup/Configuration menu, select the slave switcher type and size.
Button-Label Generator software The Extron Button-Label Generator program (Buttons.exe) is included with the System 7SC, and it can also be downloaded from the Extron Web site (http://www.extron.com). This program is used to create and print labels that can be inserted into the illuminated pushbuttons or placed in slots above/below buttons on the SCPs and on various Extron switchers. Installing the software This program is installed at the same time the System 7SC control program is installed.
Installation, cont’d Each button label can contain from 1 to 3 lines of text (or none) with choices for each line of different font sizes and whether to center or left justify the text. SCP 250 button label screen Each button label can also contain a picture (or none) selected either from the Device Palette or a user-supplied graphic file. User-supplied graphics should be icon (.ICO) or bitmap (.BMP) files. Files called TEST.BMP and DEMO_BTN.
System 7SC 3 Chapter Three Operation and Configuration Front Panel Features and Basic Operation IR and RS-232 Projector Control Optimizing the System Menus, Configuration, and Adjustments Remote Control of the System 7SC
_ Operation and Configuration System 7SC can be set up and operated by using: • The front panel controls. • A computer, a touch screen panel, or any other device that can send and receive the serial communications through the RS-232 port. Extron’s Simple Instruction Set™ (SIS™) is a set of simple keystroke commands that can be used with any such devices, and Extron’s control software for Windows provides a graphical interface for controlling the switcher from a computer. • A contact closure device.
DISPLAY POWER DISPLAY MUTE MODE If Display Power is on,... Hold Pwr for 2s Display Mute Disp Mute: On Mode DISPLAY MUTE Release Pwr If Display Power is on,... Display Power Disp Power: On Display Mute Disp Mute: Off Display Power button To send a power-on command, press and hold the Display Power button for two seconds. At the end of two seconds, the button will flash twice, then glow steadily while the display device is on.
Operation and Configuration, cont’d 2 Room buttons — Room 1 and Room 2 control the rear panel Relay ports, which control “room” functions–items such as room lighting, window coverings, and display screens–via momentary or latching contact. These contacts may be used to control any equipment as long as the contact specifications of a total of 24 volts at 1 ampere are not exceeded. The Room buttons light while the room functions are active (on).
Input selection features 8 Input selection buttons — These buttons correspond to the seven inputs. When you select an input, the corresponding button lights and remains lit until another input is selected or power is removed. The factory default (and reset default) is for input one to be active. However, the last input selected before power down will be active when the switcher is powered up. All inputs accept RGB computer video, S-video, or composite video.
Operation and Configuration, cont’d IR and RS-232 Projector Control The System 7SC switcher can control a projector or other display device by using IR control signals or RS-232 control (one-way or two-way control). The switcher must be configured for projector control in one of the following ways before it will send commands to the projector: • An IR or an RS-232 driver file can be downloaded from a disk or the Extron Web site into the switcher.
and both the learned and downloaded IR commands will be sent out the IR Comm port to the IR Emitter or IR Broadcaster. Optimizing the System For optimal performance, follow the steps in this section in order when setting up the System 7SC and its input and output devices. Setting up a DVD source To get the best results when using a DVD as a video source, Extron recommends that the DVD player itself be setup to output an aspect ratio of 16:9 and not 4:3.
Operation and Configuration, cont’d Menus, Configuration, and Adjustments Switcher/scaler configuration and adjustments can be performed by using the Windows-based control program (see chapter 4 for details) or by using the front panel controls and the menus that are displayed on the System 7’s LCD screen. These menus are used primarily when the switcher is first set up.
Switcher Setup/Configuration The flowchart below provides an overview of the Switcher Setup/Configuration submenu and the options for each setting. Extron System 7SC MENU SWITCHER SETUP/ CONFIGURATION Scaler Rate 1280X1024, 60 Hz NEXT NEXT Scaler output rates • See the table on the next page for available combinations of resolutions and refresh rates.
Operation and Configuration, cont’d Scaler Rate (resolution and refresh rate) Rotate the Adjust knob while in the Scaler Rate submenu to select one of the available combinations of scaler output resolutions and refresh (vertical scanning) ™ ™ rates. Selecting Lock enables the Extron Accu-RATE Frame Lock (AFL ) (patent pending) feature. Accu-RATE Frame Lock eliminates image tearing and other artifacts of scaling motion video by eliminating frame rate conversion.
Edge Smoothing This feature smooths edges of objects in a picture by minimizing the differences between pixels. The default setting is “Yes”. Add Slave (slaving switchers) To expand the capacity of the System 7SC to a total of up to 16 inputs, connect and configure a slave switcher. A maximum of one Extron switcher can be used. A slave cable, Extron part # 26-386-01, is required for the RS-232 connection, and the slave’s video output must be connected to input 1 of the System 7SC.
Operation and Configuration, cont’d LED near each video connector indicates which input type is active. Select Yes from the Autoselect #7 submenu to activate autoselection. If the autoselect feature is on, the last input (input 7 if no slave is attached) is selected, and video signals are present at all ports for that input, computer video (RGB) will be selected as the default source.
output level so that there is no noticeable difference in level when switching between inputs. This adjustment applies to both the Fixed and the Variable audio output. The Volume adjustment, which affects the Variable audio output only, is applied to all inputs equally, and it is an attenuation applied in addition to the per-input audio level adjustments made using this submenu.
Operation and Configuration, cont’d IR Learning Configuration Via an RS-232 connection, infrared commands can be downloaded into the switcher as driver files from Extron’s Web site. The System 7SC can also “learn” IR commands directly from a display’s remote control. IR learning is convenient for installing new or updated commands into the System 7SC while in the field. IR commands can be associated with any front panel control (Display Power, Display Mute, Mode, Room 1, Room 2) or input selection button.
Clearing IR commands from memories The memory for each Display, Room, or input selection button can either be clear (empty, no stored commands are associated with the button) or saved (containing an IR command that is saved in nonvolatile memory). To clear IR commands from a button’s memory: 1. From the main menu press the Menu button until the IR Learning Configuration menu appears. 2. Scroll through the submenu to the desired button by pressing the Next button. 3.
Operation and Configuration, cont’d Initiating IR learning If an IR command from the display’s remote control has not already been programmed into the System 7, a driver is unavailable, or an update is needed, IR learning is the best, fastest way to load that command into the System 7. Use the flowchart below as a guide to IR learning. IR learning will automatically replace any old commands from the buttons you are programming.
Information/System Options The Information/System Options menu provides information on the System 7SC (firmware version and part number) and on the projector and driver. The switcher can also be reset to factory default settings via this menu. Extron System 7SC MENU SWITCHER SETUP/ CONFIGURATION MENU AUDIO/VIDEO ADJUSTMENTS MENU IR LEARNING CONFIGURATION MENU INFORMATION SYSTEM/OPTIONS NEXT Sys 7SC VerX.
Operation and Configuration, cont’d 1. 2. Press the input selection button of the input you wish to adjust. Power on 4 sec. Extron System 7SC 4 sec. Press the appropriate image adjustment button (Color, Tint, Bright, Cont, or Detail). The LCD display will show the name of the adjustment and the number of the current setting. 3. Rotate the Adjust knob ( ) to select a level from 0 (Min) to 255 (Max). The switcher will time-out to the default menu after 8 seconds. 4.
Extron System 7SC Extron System 7SC Press for 2 seconds Press for 2 seconds COLOR DETAIL COLOR DETAIL Hold for 2s for Executive Mode Hold for 2s for Executive Mode Release Keys Release Keys Executive Mode On Executive Mode Off 4 sec. timeout 4 sec.
Operation and Configuration, cont’d IR 701 infrared remote control The IR 701, shown at right, replicates all of the front panel controls except the Menu and Next buttons. Unless executive mode is enabled, adjustments can be made from the IR 701, but you must use the System 7’s front panel or the Windows-based control program (via an RS-232 device) to configure and program the switcher. See chapter four, “Serial Communication”, for details.
System 7SC 4 Chapter Four Serial Communication RS-232 Programmer’s Guide Control Software for Windows
Serial Communication The System 7SC can be remotely controlled via a host computer or other device (such as a control system) attached to the rear panel RS-232 connector. The control device (host) can use either Extron’s Simple Instruction Set (SIS) commands or the graphical control program for Windows. The switcher uses a protocol of 9600 baud, 1 stop bit, no parity, and no flow control.
Using the command/response tables The command/response tables on the next page list valid command ASCII codes, the switcher’s responses to the host, and a description of the command’s function or the results of executing the command. Except when setting audio gain/attenuation, upper and lower case characters may be used interchangeably in the command field. The ASCII to HEX conversion table at left is for use with the command/response tables.
Serial Communication, cont’d Command/response table for SIS commands Command ASCII Command Response (host to switcher) Additional description (switcher to host) Input selection Select both video and audio Example: Select audio only Select video only Chn X1 Chn06 Aud X1 Vid X1 Video & audio input X1 Example: select input 6 video & audio Audio input X1 Video input X1 1P 0P P P Pwr X3 Pwr X3 Pwr X3 Pwr2 On (discrete) Off (discrete) Show the display power status.
Command/response table for SIS commands (continued) Command ASCII Command Response (host to switcher) (switcher to host) X5 * X4 \ Typ Additional description Video configuration Set video signal type X4 = ____ Set the input signal type. (Type = Vid, Y-C, YUV, YUVp, or RGB) Example: View the video signal type Example: 2*7\ Typ7=YUVp X5 \ X4 6\ Typ1=Vid Example: set input 2 to progressive component video Show the video signal type. Example: show input 6 video type.
Serial Communication, cont’d Command/response table for SIS commands (continued) Command ASCII Command Response (host to switcher) Additional description (switcher to host) Image size Specify image size, maintain aspect ratio Size up, maintain aspect ratio Size down, maintain aspect ratio View the image size value X15 { +{ -{ { Isz Isz Isz Isz X15 Set picture height & width together. X15 Increase height & width equally. X15 Decrease height & width size equally.
Command/response table for SIS commands (continued) Command ASCII Command Response (host to switcher) (switcher to host) Disable 0X Exe0 Enable (lock image adjustments) 1X Exe1 Enable (lock selection & adjustments) 2X Exe2 View the executive mode status Example: X X Exe X16 Exe0 Additional description Executive mode Adjustments & selections can be made from the front panel. Lock front panel adjustments; adjust image via RS-232 only.
Serial Communication, cont’d The syntax for setting a special function is __ * X? # where __ is the function number and X? is the value. To view a function’s setting, use __#, where __ is the function number. In the following table the values of the X? variable are different for each command/function. These values are given in the rightmost column.
Command/response table for special function SIS commands (continued) Command ASCII Command Response X? (host to switcher) (switcher to host) and additional descriptions values AudMute* 0 = no (audio doesn’t mute when display power is off or unmute when display power is on) 1 = yes (default) (audio mutes when display power is off, audio unmutes when display power is on) Audio settings Audio mute on/off w/display power 10 * Example: Limit audio level on power-up Example: X? # 10*1# 11* # X? 1
Serial Communication, cont’d Command/response table for advanced instructions (for the Windows-based control program) Data downloads/uploads are initiated by sending a series of hex commands to the host RS-232 port of the System 7 switcher. The Windows-based control program uses these commands mainly to load and save driver data and system configuration settings. See page 3-6 for information on projector control memory. Command Hex.
Control Software for Windows The included Extron SYSTEM 7SC Control Program for Windows offers another way to control the System 7 via RS-232 connection in addition to the Simple Instruction Set commands. The control program’s graphical interface includes the same functions as those on the switcher’s front panel and some additional features that are only available through the Windows-based software. The control software must be used in order to download projector driver files into the System 7.
Serial Communication, cont’d User Mode The User Mode screen, shown here, includes the most frequently used controls: input selection, projector and room controls, variable output volume control, audio/video breakaway, freeze, and executive mode toggling. Special features Freeze — Activating Freeze causes the output image to be still (frozen). This applies only to scaled outputs (non-RGB inputs).
Real Time Adjustments The Real Time Adjustments screen lets you adjust the picture settings and audio gain/attenuation for each input. From this menu you can also reset some or all of the settings to the original factory-installed settings. Special features Reset to Factory Defaults — The reset features in the control program let you reset specific groups of functions. • Reset Audio Input Levels sets all inputs’ audio levels to 0.0dB.
Serial Communication, cont’d Projector Driver The Projector Driver screen, shown below, displays the current IR and RS-232 parameters and commands. Commands and drivers can be loaded, entered (programmed), or edited from this screen. Using this screen, commands can be associated with each input selection, display/projector control, or room button. Special features All of the items found in this screen are only available in this part of the control program. There is no other way to perform these functions.
Room & Misc. Options Use the Room & Misc. Options screen to set room relay modes and delay periods, power up/down delay periods, change projector communications settings, and perform other functions. Special features Tie (room relay) to Power — Enabling this feature for room relay 1 or room relay 2 will cause that relay to turn on/off when the Display Power is turned on or off. Projector Comm — Set communications protocol (RS-232 vs. RS-422, baud rate, parity, data bits) in this section. Misc.
Serial Communication, cont’d Using the help program For information on program features, press the F1 computer key, or click on the Help menu from within the System 7SC control program, or double-click on the SYSTEM 7SC Help icon in the Extron Electronics group or folder. For explanations of buttons or functions, click on the tabs in the help screen to reach the desired screen. Use a mouse or the Tab and Enter keys to select a button/ function.
System 7SC A Appendix Appendix Specifications Part Numbers and Accessories Firmware Upgrade Installation Glossary
Appendix Specifications Video Gain ............................................... Bandwidth .................................... Differential phase error .............. Differential gain error ................. Crosstalk ....................................... Unity 350 MHz (-3dB) 0.01º, 0 to 10 MHz 0.01%, 0 to 10 MHz -50dB @ 5 MHz Video input Number/signal type ...................
Input level ..................................... Output level .................................. Input impedance .......................... Output impedance ...................... Max input voltage ....................... Max. propagation delay .............. Polarity .......................................... 0.5V to 5V p-p 0.5V to 5V p-p 510 ohms 75 ohms 5V p-p 20 nS Positive or negative (follows input) Audio Gain ............................................... Unbalanced/balanced -15dB (min.
Appendix, cont’d Control — room relay Number/type ............................... 2 momentary or latching Connectors .................................... 2 3.5 mm captive screw connectors, 5 pole Contact rating ............................... 24V, 1 A Control — projector Projector control port .................. RS-232 ........ 1 3.5 mm captive screw connector, 10 pole IR ................ 1 3.5 mm captive screw connector, 5 pole General Power .............................................
Part Numbers and Accessories Included parts These items are included in each order for a System 7SC switcher: Included parts System 7SC (1) Part number 60-340-01 Rubber feet (self-adhesive) (4) Rack mounting kit (brackets and screws) (1) 70-155-01 IR Emitter (1) 19-823-01 IR 701 remote control (1) 70-145-01 Batteries for the IR 701 remote control (2) 9-pin male-to-male adapter (9-pin D GCM) (1) 26-128-01 3.5 mm, 5-pole captive screw connectors (11) 10-319-10 3.
Appendix, cont’d Firmware Upgrade Installation In some cases the System 7SC’s firmware may require replacement with an updated version. The user-replaceable firmware chip is U70, the main microcontroller. We recommend that you send the unit in to Extron for service and updates. Changes to firmware must be performed by authorized service personnel only. Some System 7SC firmware updates must be performed at the Extron factory. Follow these steps to replace firmware in the System 7SC. 1.
5. After you are electrically grounded, align the hooks of a PLCC IC puller tool with the slots located in opposite ends of the firmware chip. 6. Insert the hooks into the slots, and squeeze the tool gently to grasp the chip. 7. Pull the chip straight out of the socket, and set it aside. 8. Align the slots of the new firmware IC chip with the angled corners of the socket in the same orientation as the old chip. 9. Gently but firmly press the chip into place in the socket. 10.
Appendix, cont’d Glossary Attenuate/attenuation — To reduce the amplitude (strength) of a signal or current. Balanced audio — A method that uses three conductors for one audio signal. They are plus (+), minus (-) and ground. The ground conductor is strictly for shielding, and does not carry any signal. Balanced audio is also called “differential audio”. Bandwidth — A frequency range, or “band” of frequencies between the limits defined by the “half power points”, where the signal loss is -3dB.
FCC Class A Notice Note: 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
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