Elo TouchSystems IntelliTouch SecureTouch manual Bezel Design, Bezel design

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•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. Any installation must avoid heat rise that exceeds the touchscreen specification.

Bezel Design

The following graphic displays some bezel ideas in order to help you mount the bezel to the touchscreen.

Hard

Lip

Transducer

Wedge

Bezel

With thin bezel, add a 2-3mm hard lip to protect transducer wedge.

With thick bezel, mill out hole for transducer wedge.

Before

After

Compression Compression

	Even on a beveled touchscreen,
	the transducer sticks up 1mm
	the transducer sticks up 1mm	Another idea:
	above the glass. Add a spacer	Another idea:
	above the glass. Add a spacer	Add a hard lip
	to ensure clearance. Seal	Add a hard lip
	to ensure clearance. Seal	behind the seal
	thickness will not suffice.	behind the seal
	thickness will not suffice.	to control
		to control
		compression.

Figure 2.1 Bezel design

2-7

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Contents Page Elo IntelliTouch /SecureTouch Touchscreen Guide Disclaimer Page Intellitouch 10-YEAR Warranty Page Table of Contents Index List of Figures Viii List of Tables Page Introduction Intellitouch TechnologyIntelliTouch Touchscreen IntelliTouch TouchscreenIntelliTouch controller IntelliTouch ControllerAgency Approvals Driver SoftwareWork Area Safety InformationDesign Considerations for CRTs and LCDs Getting StartedProtective Clothing Bezel design Bezel DesignCRT Integration Safety InformationSuggested Tools Definition of TermsTypical IntelliTouch Touchscreen Installation Summary of Installation StepsUnpacking the Touchscreen Testing the MonitorIncoming Inspection Disassembling the MonitorDischarge the CRT Remove the Back CaseRemove the Electronic Chassis 14I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Remove the CRT Verify Touchscreen Fit Page Attaching the Touchscreen Proper placement of adhesive tape to the touchscreen Spacing the CRT from the Bezel Installing the Controller Touchscreen Cabling System for Internal Serial Controller Internal Serial Controller 2500SP4 Pins Signal Function 24I n t e l l i T o u c h / S e c u r e T o u c h G u i d e External Serial Controller 26I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Internal USB Controller 2500U Internal USB Controller 2500U28I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Reassembling the Monitor Routing the Touchscreen CablesProper Sealing Improper Sealing Sealing the MonitorSystem Evaluation Sealing Material SelectionProper Bezel Mounting Improper Bezel Mounting LCD Integration Unpacking the Touchscreen Definition of Terms Disassembling the LCD MonitorRequired Parts for Serial Connection Tools and EquipmentRequired Parts for USB Connection Optional Parts for USB Connection Optional Parts for Serial ConnectionRemoving the LCD Removing the Rear CaseDetermining Touchscreen Fit Mounting the Touchscreen Attaching double-sided adhesive tape to the touchscreen Spacing the LCD from the Bezel Sealing10 2500S Internal Serial Controller 11 2500U USB controller Parasitic Tap of 5Vdc Power12 DC to DC converter Parasitic Tap of 7-30Vdc DC to DC converterModifying the Case for USB Output Modifying the Case for Serial Output13 Horizontal escutcheon plate Re-assembling the Display48I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Troubleshooting Process Troubleshooting GuideSoftware Troubleshooting Display ProblemsVideo Alignment Problems Hardware TroubleshootingSerial Controller Using the Comdump UtilityByte Byte DescriptionHost Signal Source P2 Pins DB25RS-232 Connections Power Connections Touchscreen and Touchscreen Cables Figure A.2 Transducer and Wedge AssemblyEC2 Cable IC1 Cable2x6 Male Header DB9 Male Function IntelliTouch Serial Controllers Diagnostic LEDsIntelliTouch Serial Controller 2500S Diagnostic CodesAA Bit Value hex Description Figure A.4 DB9 and DB25 Connector Pin Positions DB9 and DB25 Connector Pin PositionsSpecifications Environmental IntelliTouch TouchscreensMechanical OpticalUL Compliance Fire Retardation FCC Compliance Agency ApprovalsIntelliTouch 2500U USB Controller Physical CharacteristicsElectrical Touchscreen Connector Power Connector, P4 P2 pin number Signal name Standard wire color Signal name P4 pin Signal function Signal name P3 pin Signal functionLED State Function LED Diagnostic CharacteristicsAgency Approvals LED Blink Rate FunctionFigure B.4 2500U USB Controller, top view 2500U USB Controller DrawingsFigure B.6 2500U USB Controller, bottom-view Environments IntelliTouch 2500S Serial Controller72I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Parameter Value Applicable Signals EIA-232 subsec Signal Name DB-9 P2 pin Sourced by Signal FunctionBoard mounted Cable applied Header Plug Jumper Function Jumper Settings76I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Figure B.11 2500S Serial Controller, top view DrawingsFigure B.13 2500S Serial Controller Part Number Description ELO Part NumbersCables Stylus 82I n t e l l i T o u c h / S e c u r e T o u c h G u i d e Glossary Page Glossary-85 Page Glossary-87 Vertical Refresh Rate-See Refresh Rate Index Page Page