Elo IntelliTouch®/SecureTouch Touchscreen Guide Revision B P/N 008212M Elo TouchSystems, Inc. 1-800-ELOTOUCH www.elotouch.
Copyright © 1989, 1992, 1995, 1996, 2001 Elo TouchSystems Inc. All Rights Reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, including, but not limited to, electronic, magnetic, optical, chemical, manual, or otherwise without prior written permission of Elo TouchSystems. Disclaimer The information in this document is subject to change without notice.
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INTELLITOUCH 10-YEAR WARRANTY CHAPTER0 Except as otherwise stated herein or in an order acknowledgment delivered to Buyer, Seller warrants to Buyer that the Product shall be free of defects in materials and workmanship. The warranty for IntelliTouch touchscreens is 10 years and for IntelliTouch controllers 5 years. Seller makes no warranty regarding the model life of components. Seller’s suppliers may at any time and from time to time make changes in the components delivered as Products or components.
THESE REMEDIES SHALL BE THE BUYER’S EXCLUSIVE REMEDIES FOR BREACH OF WARRANTY. EXCEPT FOR THE EXPRESS WARRANTY SET FORTH ABOVE, SELLER GRANTS NO OTHER WARRANTIES, EXPRESS OR IMPLIED BY STATUTE OR OTHERWISE, REGARDING THE PRODUCTS, THEIR FITNESS FOR ANY PURPOSE, THEIR QUALITY, THEIR MERCHANTABILITY, THEIR NONINFRINGEMENT, OR OTHERWISE. NO EMPLOYEE OF SELLER OR ANY OTHER PARTY IS AUTHORIZED TO MAKE ANY WARRANTY FOR THE GOODS OTHER THAN THE WARRANTY SET FORTH HEREIN.
Table of Contents IntelliTouch 10-Year Warranty. . . . . . . . . iii Safety Information . . . . . . . . . . . . . . . . . . . Summary of Installation Steps. . . . . . . . . . Unpacking the Touchscreen . . . . . . . . . . . Testing the Monitor . . . . . . . . . . . . . . . . Disassembling the LCD Monitor . . . . . . . . Definition of Terms . . . . . . . . . . . . . . . . Tools and Equipment . . . . . . . . . . . . . . Required Parts for Serial Connection . . Required Parts for USB Connection . . .
Diagnostic LED's . . . . . . . . . . . . . . . . . . . . A-58 IntelliTouch Serial Controllers . . . . . . . . A-58 Diagnostic Codes . . . . . . . . . . . . . . . . . . . . A-59 IntelliTouch Serial Controller (2500S) . . A-59 DB9 and DB25 Connector Pin Positions . . A-60 Appendix B Specifications . . . . . . . . . . . .B-61 IntelliTouch Touchscreens . . . . . . . . . . . . . . . . B-62 IntelliTouch 2500U USB Controller . . . . . . . . . B-64 LED Diagnostic Characteristics . . . . . . .
List of Figures IntelliTouch Touchscreen . . . . . . . . . . . . 1-2 IntelliTouch controller . . . . . . . . . . . . . . 1-3 Bezel design . . . . . . . . . . . . . . . . . . 2-7 Bezel edge . . . . . . . . . . . . . . . . . . 2-8 Typical IntelliTouch Touchscreen Installation . 2-10 Proper placement of adhesive tape to the touchscreen. . . . . . . . . . . . . . . . 2-19 Touchscreen Cabling System for Internal Serial Controller . . . . . . . . . . . . . . . . 2-22 Internal USB Controller (2500U) . . . . . . .
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List of Tables Serial port controller signals . . . . . . . . . A-54 Pinouts for IC1 Cable and header . . . . . . A-57 The IntelliTouch Serial Controller (2500S) bit position relating to each byte. . . . . . . A-59 USB connector pin numbers and signal names . . . . . . . . . . . . . . . . . . B-66 IntelliTouch touchscreen connector pin numbers and signal descriptions . . . . . . . . . B-67 Power connector, P4 pins and signal descriptions . . . . . . . . . . . . . . .
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CHAPTER 1 INTELLITOUCH TECHNOLOGY CHAPTER1 Introduction The IntelliTouch system has three main components: a clear solid glass screen formed to match the shape of a display, a sophisticated electronic controller, and a software driver. The IntelliTouch touchscreen is based on patented surface wave technology. Surface waves are mechanical waves that propagate in the surface of materials such as glass. The touchscreen may be a flat glass panel or a segment of a sphere or cylindrical glass.
The IntelliTouch Touchscreen The IntelliTouch surface wave technology touchscreen consists of a glass panel molded to the shape of a display's face. Each axis of the touchscreen panel has a transmitting and receiving piezoelectric transducer, and sets of reflector stripes. See Figure 2.3 on page 10 for details on the construction of an IntelliTouch touchscreen. Figure 1.1 IntelliTouch Touchscreen Surface wave energy is generated by the transmitting transducers mounted in the corners of the touchscreen.
The IntelliTouch Controller The IntelliTouch controller provides the drive signal for the touchscreen, converts the received analog signals into digital touch coordinates, and sends these coordinates to the computer. The controller detects touches by comparing received signals to a reference waveform acquired when the touchscreen is in an untouched condition. The IntelliTouch controller detects dirt, dust particles, scratches and other contaminants on the screen and “learns around” them.
Driver Software Elo driver software provides a consistent software interface among all Elo touchscreens and controllers. The driver software scales the absolute coordinates received from the touchscreen controller into translated screen coordinates, using the calibration points obtained with the video alignment program included with the driver software. The driver also performs other operations as directed by the application. Elo provides driver programs for the DOS, Windows 3.
CHAPTER 2 COMPONENT INSTALLATION CHAPTER2 This chapter outlines the procedures for installing touchscreen components that will convert your monitor into a touchmonitor. Details are given on mounting the touchscreen, controller, and connecting cables. Safety Information WARNING The touchscreen installation procedure outlined in this chapter may require exposure to high-voltage components and handling of the CRT. This procedure can be dangerous and an accident is potentially lethal.
Protective Clothing Wear safety glasses, gloves, a rubber apron, and heavy protective clothing for any portion of this procedure that involves handling or working near the CRT. Getting Started There are two types of display technologies, CRT displays and LCD displays. IntelliTouch touchscreens are available for most displays, however each display may pose unique installation issues.
• To prevent touchscreen breakage, there should be a compliant gasket between the back of the touchscreen and the front of the display to allow for variation in the surfaces when assembling. A gap is also required between the touchscreen and the face of an LCD display to prevent damage to the display. • Unlike CRT's, plasma, EL, and backlit LCD displays may be a significant source of heat. The situation may be more significant if the unit is sealed.
Bevel edge for nice appearance Round corners for nice appearance and easy cleaning On bezel and cabinet, choose paint finish and/or surface texture so fingerprints do not show Figure 2.2 Bezel edge It may be necessary to cut ribs and struts inside the bezel. Cutting these ribs and struts does not usually cause difficulties, although the stiffness of the bezel may be reduced slightly. Try not to cut into the posts for the CRT attachment screws. Bezel and tube combinations that require this cut are rare.
Definition of Terms: MONITOR: The term "monitor" refers only to the monitor, television, or other display that is to be integrated. BEZEL: The term “bezel” refers to a specific part of the molded plastic cabinet of the monitor. The bezel is the part that covers the front of the CRT and separates it from the rear case. CASE: The term "case" refers to a specific part of the molded plastic cabinet of the monitor. The case is the part that separates from the front bezel.
Summary of Installation Steps The CRT installation process consists of the following steps: 1 Incoming inspection 2 Disassembling the monitor 3 Attaching the touchscreen to the CRT 4 Installing the controller 5 Routing the touchscreen cables 6 Reassembling the monitor 7 Sealing the monitor Specific compatibility may not be confirmed until well into the installation.1 IntelliTouch touchscreens can be installed on most types of CRT displays. Figure 2.3 shows a typical installation. Figure 2.
Incoming Inspection Unpacking the Touchscreen Handle the touchscreen with care. Note the transducers in the corners are especially fragile. Note the location of the transducers and wiring. If any of these are accidentally broken during handling or installation, or if a wire is pulled loose, the touchscreen will not operate. Avoid excessive handling and stress on the touchscreen cable. Wear gloves to avoid getting fingerprints on the touchscreen. The touchscreens are pre-cleaned by Elo.
Remove the Back Case Figure 2.3 on page 10 shows the typical construction of a 15-inch display. Disassembly usually starts with removal of the back case. For assistance with disassembly, consult your particular manufacturer's service manual. Carefully lay the monitor on its face on the padded work surface and remove the screws that attach the back case to the bezel or frame.
It may be necessary to remove some sheet metal to gain access to the anode lead—be very careful to do this without making contact to the anode lead itself. Carefully discharge the CRT using the following procedure: 1 Connect a clip lead or a heavy-gauge wire to the mounting ears or the spring- tensioned ground strap. 2 Connect the other end of the clip lead or wire to the stem of a flat blade screwdriver that has an insulated handle. 3 Hold the screwdriver by the insulated handle only.
• Various cables connected to the power switch, pilot light, front panel controls, etc. Other cables may have to be unplugged from the electronic chassis. The need for this may not be apparent until the chassis is removed, as instructed below. Another preliminary step in determining touchscreen/display compatibility should be performed at this point. Before removing the electronics chassis, note the clearance between the chassis components and the bell of the CRT.
Remove the CRT Removal of the CRT is next. Prepare a soft surface to set the CRT on. Remove the screws attaching the CRT to the bezel, and then remove the CRT. Do not lift or carry the CRT by the neck or yoke assembly. Avoid contact with the anode button, which may still have some residual charge on it, (you may wish to discharge it again at this point). Set the CRT on the prepared surface.
The potential interference between the degaussing coil and the touchscreen must also be evaluated. The coil will usually fit between the touchscreen and the inside surface of the bezel, as there is typically a natural cavity for it. If there is not enough space for the coil, you may have to provide additional setback for the CRT. It may also be possible to relocate the coil to the bell side of the CRT. Normally, this does not significantly reduce the coil’s effectiveness.
3 It may be necessary to cut ribs and struts inside the bezel. Cutting these ribs and struts does not usually cause difficulties, although the stiffness of the bezel may be reduced slightly. Try not to cut into the posts for the CRT attachment screws. Bezel and tube combinations that require this cut are rare. Generally, a total clearance between the edge of the touchscreen and any ribs or struts of at least 0.25-inch (6 mm) in both axes is necessary.
Attaching the Touchscreen Once you have verified all dimensions and checked that the bezel has plenty of clearance around the transducers and lands inside the sealing area, you are ready to install the touchscreen. 1 Check room for cable routing: • Route away from noise sources (flyback transformer, power supply, yoke, high voltage lead, etc.) • Cable can be on either side. • Avoid pinch points. • Make up excess cable with tie wraps. 2 Ensure the display and touchscreen and are clean before installation.
Use two layers of the double-sided adhesive tape to achieve a total thickness of 1/16-inch (2 mm). While specific touchscreen and CRT combinations may allow the use of thinner materials, 1/16-inch (2 mm) is generally necessary to allow for variations in ROC between the two glass surfaces. Review the fit between the touchscreen and the CRT before applying the tape. If one pair of opposite edges has a closer fit than the other, put the adhesive tape on the edges of the touchscreen with the better fit.
When you have a good feel for the placement of the touchscreen, clean the back side of the touchscreen and the face of the CRT again. Avoid all contact between the cleaning solution and the mounting materials as the cleaner may cause the mounting materials to eventually release from the glass. Remove all lint with a brush or compressed air. Remove the liner from the adhesive tape and align the touchscreen on the display.
During the spacer selection process, you may have to install the CRT with the touchscreen attached in the bezel several times. To prevent the CRT from dislodging the spacers, temporarily insert plastic tie wraps or toothpicks as guides in the mounting post holes. After selecting the correct spacers, discard the guides and fix the spacers more securely in place with the adhesive "doughnuts" provided in the Touchscreen Installation Kit. When spacers for the desired gap have been selected, install the CRT.
Internal Serial Controller (2500S) The mounting holes of the IntelliTouch serial controllers are sized for 0.156inch (4mm) snap-in standoffs. All IntelliTouch touchscreens have a cable termination that mates directly with the male header (P3) on the controller. See Appendix B for specific mounting dimensions and connections. Figure 2.
• If the controller cannot be mounted to a metal chassis, use a ground wire with a lug attached to connect one of the controller's plated-through mounting holes to chassis ground. 4 Connect the power cable harness (See “Elo Part Numbers” on page 79 for part number) to the 2x5 male connector (See “Elo Part Numbers” on page 79 for part number) at P4 on the controller. Connect the other end to a power source. If a suitable +5 Vdc power source cannot be found inside the display, use an AC-to-DC power supply.
5 Connect the 2x5 female connector, on the serial output cable (See “Elo Part Numbers” on page 79), to the 2x5 male connector at P2 on the controller. Mount the DB9 female end of the cable in the position determined in step 2. The serial cable connector shell must be grounded to satisfy safety agency approvals, as the grounding protects the user in case a wiring fault develops in the display.
External Serial Controller An external serial controller is the best choice for many integrators for several reasons: • No additional cables are required to install the controller. The 30-inch touchscreen cable is routed through the rear of the display case to a 2x6 male connector located on the rear of the controller. Once the controller is installed on the rear of the display, little or none of the touchscreen cable is visible.
CAUTION Observe polarity when connecting the power leads to the power supply. Reversing polarity may damage the controller. Possible power supply sources included: • A direct power cable to a +5 Vdc source inside the display or tap unregulated monitor power in the +9 Vdc to +30 Vdc range using the Elo DC-to-DC converter (See “Elo Part Numbers” on page 79). Attach the direct power cable (See “Elo Part Numbers” on page 79) to the source, red to + 5 Vdc and black to common.
Internal USB Controller (2500U) The mounting holes for the 2500U USB controller are sized for 0.156-inch (4 mm) snap-in standoffs. All current IntelliTouch touchscreens have a cable that mates directly with the male header (P3) on the controller. The controller must be powered from inside the monitor. Figure 2.6 CAUTION Internal USB Controller (2500U) Before making any attempt to power the controller from any monitor power source, you should confirm the installation with your monitor supplier.
3 Mount and ground the controller card. The grounding scheme for the controller should typically be determined consistent with EMI suppression requirements. This may be accomplished one of two ways: • The controller should be mounted to the metal chassis using metal screws and spacers. It can be grounded through one of the mounting holes by using one of the No.6 sheet metal screws and spacers provided in the kit.
Routing the Touchscreen Cables The internal cables that carry the analog touchscreen signals are subject to interference from various sources within the display.
Reconnect all cables that were removed during the disassembly procedure. Watch for single ground connections from the CRT mount to the chassis, between individual chassis members, etc., which may have lugs and screws to connect them, or sometimes individual push-on solderless connectors. Failure to reconnect these important cables may result in improper performance of the display after reassembly and may render the unit unsafe.
Proper Bezel Mounting Figure 2.8 Improper Bezel Mounting Proper and Improper Bezel Mounting 1 Compress the seal evenly around the bezel. If the display is to be used in a kiosk with forced air ventilation, the air should be filtered and fans should be positioned at the intake, creating positive pressure inside the cabinet. Sealing Material Selection Elo recommends a crosslinked polyolefin closed-cell foam called Volara, manufactured by Voltek.
LCD Integration This section outlines the procedures for installing touchscreen components that will convert your monitor into a touchmonitor. Details are given on mounting the touchscreen, controller, and connecting cables. Safety Information WARNING The touchscreen installation procedure outlined in this chapter may require exposure to high-voltage components and handling of the LCD. This procedure can be dangerous and an accident is potentially lethal.
Summary of Installation Steps This section describes integration of an LCD. There are two types of integration: desktop LCD or LCD component. If integrating a touchscreen on an LCD desktop, then bezel redesign may be required. See “Design Considerations for CRTs and LCDs” on page 2-6, for bezel design recommendations.
Disassembling the LCD Monitor Note: The purpose of this document is to aid in the touchscreen integration of monitors. This document is for reference only, and cannot be assumed to cover all LCD monitor products in detail. Elo TouchSystems, Inc. cannot be held liable for any personal or property damage incurred through use of this document. As always, when in doubt contact the Elo Applications Engineering Department for assistance (1-800-557-1458 x6).
Tools and Equipment • Phillips screw driver • Common (flat blade) screw driver • Diagonal side cutters • Assortment of sockets • Hand drill • Assorted drill bits • Pliers • Glass cleaner and supplies • Sheet metal screws • Hot melt glue gun, and glue sticks • Zip ties • Razor knife Required Parts for Serial Connection • IntelliTouch RS-232 controller, part number 351077-000 • IntelliTouch touchscreen • Monitor • Double-sided adhesive tape • Internal serial out cable.
Optional Parts for Serial Connection • External serial out cable • DC to DC Power converter and cables. • Controller power cable. • Closed-cell Polyolefin foam with adhesive on one side. • Service manual for the monitor. • Internal mounting kit for serial controllers. Optional Parts for USB Connection • DC to DC Power converter and cables. • Closed-cell Polyolefin foam with adhesive on one side. • Service manual for the monitor. • Internal mounting kit for controller. • Controller power cable.
Removing the Rear Case Disassembly usually starts with removal of the back case. For assistance with disassembly, consult your manufacturer's service manual. To remove the rear case: • Carefully lay the display on its face on the padded work surface and remove the screws that attach the rear case to the bezel or frame. • Slowly pull the rear case upward.
Determining Touchscreen Fit 1 Position the LCD so the face is accessible. 2 Next, determine if the touchscreen will fit in the bezel without modifications to the bezel. Modifications, if necessary, should be done without seriously compromising the mechanical integrity of the display. To do this: • Lay the touchscreen face-down in the bezel, being careful not to damage the transducers. If the touchscreen will not fit flush against the lip of the bezel, do not force it.
Mounting the Touchscreen When preparing the touchscreen for mounting to the LCD, major considerations are: • Reasonable mechanical alignment with the display. • Mounting materials and methods. • A complete dust seal between the touchscreen and the LCD. • A mounting technique that evenly supports the touchscreen on at least two opposite edges. Elo recommends double-sided tape on all sides of the LCD.
Figure 2.9 Attaching double-sided adhesive tape to the touchscreen • Practice aligning the touchscreen on the LCD without removing the adhesive tape liner. The installation can tolerate some horizontal and vertical shift. However, rotational skew may interfere with proper mounting of the LCD touchscreen in the bezel. • When you have a good feel for the placement of the touchscreen, clean the back side of the touchscreen and the face of the LCD.
Sealing Sealing the IntelliTouch touchscreen is not required for operation; however, it is recommended to increase the resistance to dirt and moisture. Elo recommends using closed-cell polyolefin based foam with an adhesive backing on one side. Elo sells sealing foams with varying thickness to accommodate most needs. Note: Other foams may actually reduce the acoustic signal, thus resulting in detrimental effects.
Installing the Controller Internal Serial Controller (2500S) The mounting holes of the IntelliTouch serial controllers are sized for 0.156-inch (4mm) snap-in standoffs. All IntelliTouch touchscreens have a cable termination that mates directly with the male header (P3) on the controller. See Appendix B for specific mounting dimensions and connections. Figure 2.
Internal USB Controller (2500U) The mounting holes for the 2500U USB controller are sized for 0.156-inch (4 mm) snap-in standoffs. See Appendix B for specific mounting dimensions and connections. Figure 2.11 2500U USB controller CAUTION Before making any attempt to power the controller from any monitor power source, you should confirm the installation with your monitor supplier. Failure to observe this caution may destroy the monitor or seriously impair monitor performance.
Power Various methods can be used to obtain power for the internal USB controller. This section addresses the two most common methods: • Parasitic tap of 5Vdc • Parasitic tap of 7-30Vdc using a DC to DC converter. Parasitic Tap of 5Vdc It may be possible to find and use a 5Vdc power source directly from the monitor’s circuitry. Before attempting this you should consult the monitor’s service manual, or the monitor’s manufacture.
Parasitic Tap of 7-30Vdc (DC to DC converter) If you cannot find a readily available 5Vdc source; it may be advisable to use a DC to DC converter, and locate a 7-30Vdc source. Before attempting this you should consult the monitor’s service manual, or the monitor’s manufacture. Figure 2.12 DC to DC converter Follow these steps to use 7-30Vdc and a DC to DC converter: 1 Evaluate the monitor for proper positioning of the DC to DC converter. Make sure there is sufficient space for cable headers.
• Connect the 2x5 position header of cable 429761-000 to connector P4 of the IntelliTouch USB controller, and secure with a small amount of glue. • Take up the excess cable with zip ties and secure. Modifying the Case for Serial Output To modify the case to accommodate the RS-232 output cable: 1 Evaluate the rear of the case to determine the best position for the DB-9 connector.
2 Mount the USB bulkhead connector using one of the above techniques. Note: If mounting to a non-grounded location, attach a grounding cable to one of the jackscrews and terminate to ground). 3 Connect one end of the 18" USB cable to the USB connector of the IntelliTouch serial controller, and connect the other end to the receiving connector of the bulkhead. 4 Take up the excess cable with zip ties and secure.
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APPENDIX A TROUBLESHOOTING GUIDE CHAPTER2 If you experience operational difficulties with the touchscreen system either during or after installation, the following sections will help you determine the source of the problem. The Troubleshooting Process The first step in troubleshooting a touchscreen system is to determine whether the problem is related to the display, software, or hardware: • Do not confuse display problems with touchscreen problems—the two are unrelated.
Display Problems If you are experiencing display problems (such as no video, no horizontal or vertical synchronization, raster non-linearities, etc.), remember that the video function of the display and the Elo touchscreen installed on the display are separate systems.
For detailed troubleshooting information on MonitorMouse for Windows, MonitorMouse for DOS, MonitorMouse for DOS, ELODEV, and TouchBack, see the DOS and Windows Driver Guide, MonitorMouse for OS/2 User's Guide, MonitorMouse for Windows NT User's Guide, or MonitorMouse for Macintosh User's Guide as appropriate, or visit Elo’s Web Tech site, www.elotouch.com/ support.
• Intermittent touch data. If the system is reporting touch data at a slow or varying rate, the problem may be caused by a low signal strength or excessive noise in the system. Generation of touch data when the touchscreen is not touched is most likely caused by excessive system noise. See the sections and, page and, respectively. Use of SAWDUMP (a DOS utility included with most Elo driver software and available on Elo’s website, www.elotuch.com, may help to identify these problems.
2500S Controller Protocol The ten-byte binary data format displayed in hex by COMDUMP for correct operation with Elo driver software is as follows: Byte Description 1 ASCII 'U' (55h) 2 3 4 ASCII 'T' (54h) Status Byte XLow 5 6 XHigh YLow 7 8 YHigh ZLow 9 10 ZHigh (defaults to 0) Checksum A-4002 Controller Protocol If the controller is jumpered for A-4002 emulation mode, the output will be the six-byte binary format as follows: Byte MSB LSB 1 1 1 X11 X10 X9 X8 X7 X6 2 3 1 0 0 1 X5 Y
RS-232 Connections Review cable connections and switch settings. If you have used your own cables or adapters for connection to the serial port, check pinouts. Verify that the data transfer rate (baud rate) of the computer's serial port is the same as selected by switches or jumpers on the controller. The IntelliTouch serial controllers operates at standard RS-232 levels. The serial port connector, P2, is a 2x5 header with pins on 0.100-inch centers.
Data Set Ready (DSR) and Clear to Send (CTS) may be used by the host to verify controller connections and operation. DSR is asserted when power is applied to the controller and CTS is asserted when the controller's power-on sequence is complete. Data Terminal Ready (DTR) and Request to Send (RTS) can also be connected for full hardware handshaking. Elo driver software typically requires two-way communication and all four handshaking lines.
Touchscreen and Touchscreen Cables If the touchscreen and its attached cable are easily accessible, the touchscreen can be physically inspected for damage to the transducers and cable. Gently peeling back the tape covering the transducer and wedge assembly will allow you to see the back side of the transducer and the wires soldered to it (see Figure A-1 Transducer and Wedge Assembly Broken wires near the transducers should be obvious, but broken or cracked transducers may be difficult to see.
IC1 Cable The IC1 cable is used inside the display to connect to an external EC2 extension cable and an external controller. The IC1 cable can be checked with an ohmmeter. Pin #1 is identified by a white dot on the plastic body of the header. The pinouts for the header and the cable are as follows: 1 X 2 3 4 5 6 7 8 9 10 X 11 12 Figure A.3 Pinouts for the IC1 Cable Table A.
Diagnostic LED's Depending on where the controller is installed, the LED's may or may not be visible. IntelliTouch Serial Controllers The IntelliTouch serial controllers have one green diagnostic LED. Following power on, the controller performs a short self-test, where the LED stays lit. After the self-test, the LED flashes once per second, indicating normal operation. The self-test results are displayed by most Elo driver software.
Diagnostic Codes The diagnostic codes may be a single byte or pair of bytes displayed in hex. The following tables for each controller list the bit positions defined for each byte. A 1 bit indicates a failure. Diagnostic codes are computed by summing the value for each bit position using hexadecimal arithmetic. IntelliTouch Serial Controller (2500S) These controllers have a two-byte diagnostic code displayed in the form AABB. The AA byte is defined below.
DB9 and DB25 Connector Pin Positions The following figure is useful when locating pin positions on DB9 and DB25 connectors. Figure A.
APPENDIX B SPECIFICATIONS CHAPTER2 The following specifications are subject to change without notice. Many of the IntelliTouch specifications are controller-dependent. Refer to the IntelliTouch Touchscreen Products brochure or the Technical Reference Manual for your controller for these additional specifications. IntelliTouch products are covered by one or more of the following patents: 4,642,423; 4,644,100; 4,645,870; 4,700,176; 4,746,914; 4,791,416; 4,825,212; 4,859,996; 4,880,665.
IntelliTouch Touchscreens Mechanical Construction Dimensions Cable and Connector Positional Accuracy Resolution Touch Activation Force Surface Durability Expected Life Performance Glass panel with transducers attached to front surface of the glass. Glass panel thickness nominally 0.115-inch (3 mm). Corner-mounted transducers add maximum of 0.150-inch (4 mm). Beveled flat screens have transducers attached to a beveled edge of the glass.
Altitude Chemical Resistance Electrostatic Protection Operating: 10,000 ft (3,048 m). Storage/transport: 50,000 ft (15,240 m).
IntelliTouch 2500U USB Controller Electrical Supply Voltage and Current Interface Operating Modes Touch Resolution Conversion Time Reliability +5 Vdc, nominal (+4.75 to +5.25 Vdc). 50 mA, typical at +5 Vdc. Average power dissipation is 0.25 W, typical. Supply must be capable of sourcing 100 mA, minimum. Total noise and ripple requirement must be less than 100mV (p-p) for frequencies below 1MHz, and less than 50mV (p-p) for frequencies above 1MHz.
Touchscreen Connector The touchscreen connector, P3, is a dual row by six position header with 0.025 inch square pins spaced on 0.100 centers. P3 mates with the Berg Mini-Latch receptacle on the IntelliTouch® touchscreen cable. The pins are numbered as shown in Figure B.2 on page 66. The withdrawal force exceeds 3.9 lbs. Power Connector, P4 The power connector, P4, is a 2 row by five-position header with 0.025-inch pins on 0.100 centers.
2 1 VBUS 1 2 D+ 3 4 GND 4 3 D- board-mounted receptacle cable-mounted plug Figure B.1 P2, USB board-mounted header and cable-mounted plug. Table B.1 USB connector pin numbers and signal names P2 pin number Signal name Standard wire color 1 2 VBUS D- RED WHITE 3 4 D+ GND GREEN BLACK shell shield drain wire 2 12 1 11 12 2 11 1 Board mounted Cable applied header plug Figure B.2 Pin diagram for touchscreen connector, P3, as viewed from connector mating surfaces.
Table B.2 Table B.
LED Diagnostic Characteristics A green LED (D1) indicates controller status as follows: LED Blink Rate Function Once per second On continuously Twice per second Normal condition, untouched state Touched state Error detected A second LED (D6) indicates USB status as follows: LED State Function OFF Controller is not enumerated on USB ON Blinking Controller is enumerated on USB, but there is no data transfer USB data transfers between controller and host are occurring Agency Approvals • Elo controlle
2500U USB Controller Drawings Figure B.4 2500U USB Controller, top view Figure B.
Figure B.6 2500U USB Controller, bottom-view Figure B.7 2500U USB Controller, side view Note: B-70 Side view values represent typical dimensions.
IntelliTouch 2500S Serial Controller Electrical Supply Voltage and Current +5 Vdc, nominal (+4.75 to +5.25 Vdc). 60 mA, typical at +5 Vdc. Average power dissipation is 0.3 W, typical. Supply must be capable of sourcing 100 mA, minimum. Total noise and ripple requirement must be less than 100 mV (p-p) for frequencies below 1 MHz, and less than 50 mV (p-p) for frequencies above 1 MHz. Interface EIA 232E (Serial RS-232), DCE configuration. 8 Data Bits, 1 Stop Bit, No Parity, Full Duplex.
Connectors and Pin Definitions The connector configuration permits the controller to be placed in-line between the touchscreen and serial I/O attachments. Serial connector, P2, and signal descriptions The serial I/O connector, P2, is a dual row by five position header with 0.025 inch pins on 0.100 centers.
Table B.
2 12 1 11 12 2 11 1 Board mounted Cable applied header plug Figure B.9 Pin diagram for touchscreen connector, P3, as viewed from connector mating surfaces. Table B.
Table B.7 Power connector, P4, pins and signal names Signal name P4 pin Signal function +Regulated Pwr Pwr Com 1 2 +5 volts DC +/- 5% Supply voltage common reserved Pwr Com LED Remote1 3 4 5 no connection allowed Supply voltage common n/c n/c 6 7 key location Frame ground -Reset 8 9 reserved 10 Open = normal operation short to Pwr com = hardware reset. no connection allowed 1. Source impedance is 500 ohms to Vcc. Current drive available for typical LED is 6mA. Jumper Settings Table B.
Agency Approvals • Elo controllers are “CNR/USR” UL Recognized Components for USA and Canada, Category NWGQ2, Information Technology Equipment Including Business Equipment. • Elo controllers are TUV Bauart certified as components. • Elo controllers have been tested for compliance with FCC Part 15 Class B limits*. Depending on the application, it may be necessary to pay special attention to system grounding and shielding, and it may be necessary to apply ferrite suppressor beads.
Drawings Figure B.11 2500S Serial Controller, top view Figure B.
Figure B.13 2500S Serial Controller Figure B.14 2500S Serial Controller, side view Note: B-78 Side view values represent typical dimensions.
APPENDIX C ELO PART NUMBERS CHAPTER2 Part Number Description Controller and Cable Kits 714259-000 351077-000 498363-000 2500U USB Controller for surface wave 2500S RS-232 Serial Controller for surface wave PC-Bus Controller Card, half slot for surface wave 750345-000 748578-000 Serial Cable Pack for surface wave touchscreens USB Cable Pack for surface wave 451043-000 72 in. DB9M to DB9F. Surface wave touchscreen cable for external controllers. Goes from back of monitor to controller.
Part Number Description 466907-000 Power Supply, U.S., Wall mount, 90-130 Vac, 60 Hz. in; +5, -12, +12 Vdc out (also needs 323227-000 or 276875-000 power cord). Provides power to the following obsolete controllers: 2300 serial in enclosure, 4002 seria Power Supply, International. Free standing, 115-230 Vac, 50/60 Hz. in; +5, -12, +12 Vdc out (also needs 323227-000 or 276875-000 power cord).
Part Number Description 388923-000 419381-000 PS/2 Mini DIN keyboard power tap cable. E281-2310MX keyboard power tap cable. Touchscreen cable extension, 28" length 868829-000 Touchscreen cable extension, 7" length 539325-000 2 in. DB9M to DB25F. Converts DB9F to DB25F for use with DB25 serial port.
C-82 Part Number Description 464629-000 IntelliTouch 10.4" flat, antiglare touchscreen 269259-000 174235-000 IntelliTouch 10.4" flat, antiglare touchscreen IntelliTouch 11.4" flat, antiglare touchscreen 497139-000 870693-000 872581-000 IntelliTouch 12.1" flat, antiglare touchscreen IntelliTouch 13.1" flat, antiglare touchscreen IntelliTouch 13.8" flat, antiglare touchscreen 119941-000 094939-000 IntelliTouch 14.
GLOSSARY CHAPTER2 A Autosizing-True autosizing occurs when a monitor can maintain a constant image size across different video modes. Two common ways of achieving autosizing are mode sensing, pre-programmed factory settings and user defined modes. B Bandwidth-The range of frequencies over which the video display’s electronics can respond. This is directly related to the speed at which the monitor can accept pixel information and to the maximum resolution the monitor can display.
DPMS™-Display Power Management Signaling standard. VESA® standard which ensures that monitor and video manufacturers produce power saving products that work together. DQ-DAF-Double-Quadruple Dynamic Astigmatism and Focus. The basic technology of the DQ-DAF is the same as the DAF. The DQ-DAF has two sets of quadruple lenses in addition to the main focus lens. This provides separate horizontal and vertical focusing, and thus greater focal compensation than the standard DAF.
Invar-Shadow Mask-A special type of shadow mask that is made out of Invar, an alloy that is able to withstand high temperature generated by the electron beam. The Invar shadow mask allows the CRT to generate a brighter image than the conventional shadow mask. (See Shadow Mask). An Advanced Invader Shadow Mask improves brightness by 40% over the standard. J Jitter-See Swim. K k-Small letter k stands for Kilo, Greek for 1,000, e.g. kg, kHz.
MPR-II-The radiation emission standard published by the Swedish National Board for Measurement and testing. Multi-Frequency vs Fixed Frequency-Fixed frequency monitors can only sync on one horizontal scan rate (e.g. 31.5 kHz). Most of this type of monitors are VGA only. There are two basic types of multi-frequency monitors: the tri or quad sync multi-frequency monitor, and the variable multi-frequency monitor. Tri/quad sync monitors will sync on 3 to 4 different horizontal scan rates (e.g. 31.5 kHz, 35.
Primary Colors-In light (and in monitors, which produce light) they are the basic colors-red, green and blue-that can be added together to create any other color. R Raster Area-The area of the CRT which has the ability to display a video image. Refresh-The process in which the monitor repaints an image. Refresh Rate-The rate at which a monitor repaints an image. A refresh rate of 60 Hertz, for example, means the screen is drawn 60 times per second. A low vertical refresh rate produces visible flicker.
Swim-An image should be rock-steady on the monitor screen. Swim, like similar characteristics jitter and drift, is a measure of how much an on-screen image wavers over a given time. T Triad-A triad contains three phosphor filled dots-one red, one green and one blue-arranged in a triangular fashion. Each of the three electron guns are dedicated to one of these colors (for example, the red gun excites only a triad’s red phosphor dot).
Index Numerics Construction, 2500S serial controller, B-64 Construction, IntelliTouch Touchscreen, B-62 Conversion Time, 2500S serial controller, B-64 converter power consumption, 2-26 coordinates inversion, 2-16 output, 2-16 CRT attaching touchscreen to, 2-19 bell, 2-16, 2-29 clearance from chassis, 2-29 discharging, 2-15 neck, 2-15, 2-29 removing, 2-15 yoke, 2-15, 2-29 CRT Integration, 2-8 2500S Controller Protocol, A-53 2500S Serial Controller, bottom view, B-70 2500S Serial Controller, side view, B-70
shorts, 2-29 Electrical Specifications, 2500S serial controller, B-64 Electrical Specifications, IntelliTouch Touchscreens, B-62 electronic-grade adhesive, 2-30 Electrostatic Protection, IntelliTouch Touchscreens, B-63 Elo Touchscreen Kit, 2-6 Environmental Specifications, 2500S serial controller, B64 Environmental Specifications, IntelliTouch Touchscreens, B-62 ESD, 2500S serial controller, B-64 Expected Life Performance, IntelliTouch Touchscreens, B-62 External Serial Controller, 2-25 eye protection, 2-29
Operating Relative Humidity, Touchscreens, B-62 Optical, IntelliTouch Touchscreens, B-62 Optional Parts for Serial Connection, 2-36 orientation of touchscreen, 2-16 output coordinates, 2-16 IntelliTouch P P4 Pins, 2-23 Parasitic Tap of 5Vdc, 2-44 Parasitic Tap of 7-30Vdc, 2-45 Physical Characteristics, 2500S serial controller, B-64 polarity, 2-26 Positional Accuracy, IntelliTouch Touchscreens, B-62 Power Connections, A-55 Power Connector, P4, 2500S serial controller, B-65 power supply, 2-26 problems displ
orientation, 2-16 tape for mounting, 2-19 testing of, 2-30 thickness, 2-19 Touchscreen and Touchscreen Cables, A-56 Touchscreen Connector, 2500S serial controller, B-65 transducer, 2-15 clearance from bezel, 2-15 Troubleshooting Guide, A-49 Troubleshooting Process, A-49 U UL Compliance, B-63 Underwriters Laboratory (UL) compliance, 2-30 Unpacking the Touchscreen, 2-11 Unpacking the Touchscreen, Flat Panel, 2-33 USB Output Connector, 2500S serial controller, B-64 Using the COMDUMP Utility, A-52 V Verify To
