Elo TouchSystems IntelliTouch SecureTouch manual P4 Pins Signal Function

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•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.

4Connect 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. The 2500S controller power requirements are +5 Vdc nominal. Refer to Appendix B for current requirements.

P4 Pins	Signal	Function

1	+Pwr	Supply voltage positive
2	PwrCom	Supply voltage negative (tied to pin 4)
3	N/C Not connected
4	PwrCom	Supply voltage negative (tied to pin 2)
5	LED Remote	External LED driver
6		Key
7	N/C
8	Chassis	Frame ground connection
9	-Reset	Open collector input: = normal operation; short to
		PwrCom = hardware reset.
10	N/C

If you have grounded the controller to the metal chassis as recommended in Step 3 on page 22, the chassis ground connection through the power connector, P4 pin 8, does not need to be connected. Likewise, do not connect the Reset and LED Remote lines unless you have provided the appropriate circuits.

The microprocessor pin that drives the status LED is connected to pin 5 of the P4 power supply connector. This signal from the microprocessor may also be used to drive an external indicator such as another LED.

To operate an external LED, connect the LED cathode to ground and the anode to pin 5 of the P4 connector. Nominal current through the LED will be 6 mA, so a low-operating current LED should be used. An external resistor is not required.

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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 InformationProtective Clothing Getting StartedDesign Considerations for CRTs and LCDs 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 MonitorProper Bezel Mounting Improper Bezel Mounting Sealing Material SelectionSystem Evaluation LCD Integration Unpacking the Touchscreen Definition of Terms Disassembling the LCD MonitorRequired Parts for USB Connection Tools and EquipmentRequired Parts for Serial 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 DescriptionRS-232 Connections P2 Pins DB25Host Signal Source Power Connections Touchscreen and Touchscreen Cables Figure A.2 Transducer and Wedge Assembly2x6 Male Header DB9 Male Function IC1 CableEC2 Cable IntelliTouch Serial Controllers Diagnostic LEDsAA Bit Value hex Description Diagnostic CodesIntelliTouch Serial Controller 2500S 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 ApprovalsElectrical Physical CharacteristicsIntelliTouch 2500U USB Controller 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