User Guide Switchers SW USB Series USB Switchers 68-1517-01 Rev.
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 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.
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. 2. This device must accept any interference received, including interference that may cause undesired operation.
Conventions Used in this Guide In this user guide, the following are used: CAUTION: NOTE: A caution indicates a potential hazard to equipment or data. A note draws attention to important information. TIP: A tip provides a suggestion to make working with the device easier. WARNING: A warning warns of things or actions that might cause injury, death, or other severe consequences.
Contents Introduction............................................................ 1 SIS Programming and Control........................... 23 About this Guide................................................. 1 About the SW USB Series..................................... 1 Features............................................................... 1 Application Diagrams........................................... 2 Host-to-Switcher Communications..................... 23 Switcher-initiated Messages............
SW USB Series • Contents vi
Introduction This section gives an overview of the Extron SW USB Series switchers. Topics include: • About this Guide • About the SW USB Series • Features • Application Diagrams About this Guide This guide describes the Extron SW2 USB, SW4 USB, and SW4 USB Plus switchers and provides instructions on installing, configuring, and operating them. The terms “SW USB” and “switcher” are used throughout this guide to refer to all models.
• RS-232 control and pass-through — The SW USB switcher can be controlled by Simple Instruction Set (SIS™) commands received via an RS-232 interface. These SIS commands can be sent to an RS-232 controllable Extron AV switcher attached to the SW USB RS-232 Pass Thru port (see the “SIS Programming and Control” section for an explanation of the available SIS commands).
Control System with RS-232 Extron SW4 USB 232 RS- B UT TP HU Tx B3 US B OU Rx 1 CT NTA CO 3 4 2 RS-232 Tx 232 U RS-THR S PAS US B4 US B2 US B1 US T PU IN G IN ITCH B SW US PC PC PC PC 4 3 RS-232 Loop-through 2 1 ER POW 12V MAX 1.5A + USB USB Visualizer VGA Projector s A Ar 6 VG SW TE MO UT RE TP OU UT TP OU Laptop 3 S UT INP 4 1 R L VGA Out 0.2A 240V 100- 2 PC Figure 2.
Installation This section gives an overview of the steps to installing the SW USB Series switchers. It also provides a description of the rear panel connectors and instructions for cabling. The following topics are discussed: • Installation Overview • Rear Panel Features • Wiring the Power Connector • Wiring for RS-232 Communication • Setting Up Contact Closure Control • Connecting Multiple SW USBs in a System Installation Overview To install and set up the SW USB switcher: 1.
Rear Panel Features 2 1 USB OUTPUT HUB 3 RS-232 USB SWITCHED INPUT Tx Rx USB 3 POWER 12V 0.7A MAX PC 1 PC 2 USB 1 USB 2 CONTACT 1 2 Tx + USB 4 RS-232 PASS THRU SW2 USB Rear Panel 7 4 6 2 1 USB OUTPUT HUB 3 RS-232 USB SWITCHED INPUT Tx Rx USB 3 POWER 12V 0.
e Emulation DIP switches — (SW4 USB Plus only) These DIP switches enable host emulation to a keyboard and mouse connected to output ports 3 and 4. Switch 1 enables host emulation to a mouse; switch 2 enables emulation to a keyboard. When a keyboard or a mouse is connected to port 3 or 4, and the appropriate switch is set to On, the SW USB Plus switches to the connected keyboard or mouse instantly, without the delay that normally occurs while the computer recognizes a new peripheral device.
5. Use the supplied tie-wrap to strap the power cord to the extended tail of the connector. The figure below shows how to wire the power connector. Smooth A Ridges A SECTION A–A Power Supply Output Cord Tie Wrap 3/16” (5 mm) Max. Captive Screw Connector Figure 4. Power Connector Wiring CAUTIONS: • When you are connecting the power supply, voltage polarity is extremely important. Applying power with incorrect voltage polarity could damage the power supply and the regenerator.
Wiring for RS-232 Communication RS-232 Port The 3-pole, 3.5 mm captive screw connector labeled “RS-232” is used for optional RS-232 communication between the SW USB and a computer or control system. The control system plugged into this port can issue commands to the SW USB, which can pass the commands through to an Extron AV switcher that is plugged into the RS-232 Pass Thru port. NOTE: The computer that you use for RS-232 control should not be one of the host devices connected to any of the input ports.
RS-232 Pass Thru Port The RS-232 Pass Thru port loops the signal received at the SW USB RS-232 control port, the Contact (closure) port, or the front panel input buttons through the RS-232 Pass Thru port to send SIS commands to another Extron AV switcher. NOTE: Only Extron products can be controlled via this port. You can configure the SW USB to send SIS commands or input selections through the RS-232 Pass Thru port to the AV switcher.
Figure 7 App Diagram Contact Closure -232 RS UT P UT Tx B HU USB 3 BO USB 2 T 1 AC NT CO 3 4 2 -232 RS THRU SS PA US USB Rx Tx 4 USB 1 T PC PC G IN CH WIT BS US PC PU IN PC 4 RS-232 Loop-through 4 3 2 3 2 1 WER PO V AX 12 A M 1.5 1 + Extron SW4 USB Extron CCR 4BLB USB Switcher Controller Module GA 6V Ars SW TE MO RE T OU UT TP OU TS PU T PU R L 3 IN 0.2A 1 4 0V 0-24 10 2 z -60H 50 Extron SW4 VGA Ars VGA/Audio Switcher Figure 7.
Connecting Multiple SW USBs in a System The USB specification states that a maximum of five hubs (or five SW USBs) can be connected in a series. NOTE: Do not exceed five cascaded hubs and a total of 127 peripheral devices in the entire system. The following illustration shows an example of a single host with the maximum of five SW USB switchers cascaded in a series.
Operation This section provides a description of the SW USB front panel features and describes the procedures for performing the functions that are accessed from the front panel.
Active USB (port status) LEDs: d Input LEDs — Each of these green LEDs lights when a host or PC is connected to the corresponding USB input port on the switcher and is detected by the SW USB, whether or not the input is selected. e Output LEDs — Each of these green LEDs lights when a peripheral device is connected to the corresponding output port on the SW USB and has been enabled by the selected input device or host PC. Operations Powering on the System To power on the SW USB and connected devices: 1.
Selecting an input on an AV Switcher via contact closure To make input selections on a connected AV switcher via contact closure, you must place the SW USB in loop 0 mode. When the ground pin of the Contact port is connected to one of its other pins by by one of the methods described on the previous page, the SW USB sends the input selection SIS command X! ! (where X! is the input number) through the RS-232 Pass Thru port to the AV switcher.
Mode SIS Command Commands Passed Through to an AV Switcher Loop 1 E 1LOOP } Only SIS commands received via the RS-232 control port Loop 0 E 0LOOP } (Default Mode) • Input selections made via contact closure or the front panel buttons • SIS commands sent via the RS-232 interface (loop 1 functionality) See the “Command and Response Table for SIS Commands“ in the “SIS Programming and Control” section for an explanation of all supported SIS commands.
Example: When a control system issues an SIS input selection command 1! (select input 1), 2! (select input 2), 3! (select input 3), or 4! (select input 4), the SW USB switches to the corresponding input.The SW USB also passes the SIS input selection command through the RS-232 Pass Thru port, causing the same input to be selected on the AV switcher.
Resetting To reset the switcher to its factory default settings from the front panel: 1. Disconnect power from the SW USB. 2. Press and hold the Input 1 button while reapplying power to the unit. The Input LEDs blink three times to indicate that a reset has occurred. The input selection defaults to input 1, and the Input 1 LED lights. Host Emulation (SW4 USB Plus Only) The SW4 USB Plus model provides host emulation to peripheral devices on two of its output ports.
NOTES: • If two mice or two keyboards are connected to output ports 3 and 4, and the appropriate emulation DIP switch is set to On, the switcher emulates a host to only one port. • When one or both DIP switches are set to On (up), host emulation follows the attached peripheral device: • When the Mouse DIP switch (switch 1) is set to On (up), the switcher emulates a host to any standard mouse that is connected to either of the emulation output ports (3 or 4).
New firmware versions for the SW USB can be downloaded from the Extron web page. After you install the new firmware on your computer, you can upload it to the switcher using either SIS commands (see the “Command and Response Table for SIS Commands” in the “SIS Programming and Control” section) or the Firmware Loader software. The Firmware Loader utility, which enables you to update the SW USB firmware, is provided on the Extron Software Products DVD.
4. On the Add Device window, select your SW USB model from the Device Names drop-down menu. Figure 11. Device Name Drop-down Menu on the Add Device Window 5. From the Connection Method drop-down menu, select RS-232 (the only option). 6. Select the appropriate options from the Com Port and Baud Rate menus (this information is provided by your system administrator). 7. Click Connect.
NOTES: • The original factory-installed firmware is permanently available on the SW USB. If the attempted firmware upload fails for any reason, the switcher reverts to the factory-installed firmware. • When downloaded from the Extron website, the firmware is placed in a folder at C:\Program Files\Extron\Firmware\SW USB or C:\Program Files (x86)\Extron\Firmware\SW USB (for Windows 7). 10. On the Add Device window, the path to the new firmware file is displayed in the Path field. Figure 13.
12. Click Begin. The following indicators on the Firmware Loader window show the progress of the update: • The Transfer Time section shows the amounts of remaining and elapsed time for the update. • The Total Progress section displays a progress bar with Uploading... above it. • In the Devices section, the Progress column displays an incrementing percentage and another progress bar. The Status column displays Uploading. Figure 15.
SIS Programming and Control This section describes the connection through which the SW USB switchers can be configured and controlled remotely via SIS commands, and describes the commands that are available.
Error Responses If the switcher is unable to execute a command it receives because the command is invalid or contains invalid parameters, the SW USB returns an error response to the host.
Command and Response Table for SIS Commands ASCII Command Response (Host to Unit) (Unit to Host) Select input X!! Chn X! ] Select SW USB input only X!^ Usb X! ] Enable and disable hot key E H X@ USBC } UsbcH X@ ] View hot key status E H USBC } X@ ] Command Additional Description Input Selection Select input X! for both the SW USB and the attached AV switcher (if any). X! = 1, 2, 3, or 4. Select input X! on the SW USB only (not passed through).
Command ASCII Command Response (Host to Unit) (Unit to Host) E Upload } ...go ] Upl ] Additional Description Upload Firmware Upload firmware Upl appears after the upload is complete (see “Updating Firmware” in the “Operation” section for information on the firmware updating process).
Reference Information This section provides reference information on the SW USB Series. The following topics are covered: • Specifications • Part Numbers and Accessories • Mounting the SW USB Series Switcher Specifications USB USB specification ���������������������������� USB 2.0 compatible USB data rates �������������������������������� Low speed (1.
Temperature/humidity �������������������� Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing Cooling ������������������������������������������ Convection, no vents Thermal dissipation Device ������������������������������������� 29.4 BTU/hr Device and power supply ��������� 40.
Part Numbers and Accessories Included Parts Included Part Replacement Part Number SW2 USB 60-952-02 SW4 USB 60-953-02 SW4 USB Plus 60-954-02 3.5 mm, 3-pole captive screw connector with strain relief (3 for SW2 USB, 2 for SW4 USB and SW4 USB Plus) 100-456-01 3.
Mounting the SW USB Series Switcher The SW USB Series switcher can be set on a table, mounted on a rack shelf, or mounted under a desk, podium, or table. Tabletop Use Four adhesive rubber feet are included with the SW USB switcher. For tabletop use, attach one foot at each corner on the bottom of the unit, and place the switcher in the desired location.
HalfRackVersaToolsShelf Diagrams VersaTools Rack Shelf 1/2 Rack Width Front False Faceplate Use 2 mounting holes on opposite corners. Figure 17. (2) 4-40 x 3/16" Screws Mounting an SW USB Switcher on a 3.5-inch Deep Rack Shelf 1U Universal Rack Shelf 1/2 Rack Width Front False Faceplate Front false faceplate uses 2 screws. Use 2 mounting holes on opposite corners. Figure 18. (2) 4-40 x 3/16" Screws Mounting an SW USB Switcher on a Standard 9.
6. Insert #8 wood screws into the four pilot holes. Tighten each screw into the mounting surface until slightly less than 1/4 inch of the screw head protrudes. 7. Align the mounting screws with the slots in the brackets and place the unit against the surface, with the screws through the bracket slots. Figure 19. Mounting the SW USB under Furniture 8. Slide the unit slightly forward or back, then tighten all four screws to secure it in place.
Extron Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
