Elo TouchSystems IntelliTouch SecureTouch, IntelliTouch Series, SecureTouch Series User Manual

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Elo IntelliTouch®/SecureTouch

Touchscreen Guide

Revision B

P/N 0082 12M

Elo TouchSystems, Inc.

1-800-ELOTOUCH www.elotouch.com

No part of this p ublic ation ma y be repr oduce d, tra nsmitte d, transc ribe d, stor ed in a ret rieval system, or translated into any langu age 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 informat ion in this docum ent is subje ct to change with out notice . Elo TouchSystems make s no representations or warranties with respect to the contents hereof, and specifically disclaims any implied warranti es of mer chanta bilit y or fitness for a parti cular purp ose. El o TouchSystems rese rves the right to rev ise th is pu blic a tio n and to mak e ch ang e s fr om t im e to t im e in the c o nten t h er eof w i thout obli gation of Elo TouchSystems to not ify any person of such revi s ions or changes.

Trademark Acknowledgments

iTouch, IntelliTouch, SecureTouch, AccuTouch, Entuitive, MonitorMouse, ELODEV, and SmartSet are trademarks of Elo TouchSystems, Inc.

Other product names mentioned herein may be trademarks or registered trademarks of their respective companies. Elo TouchSystems claims no interest in trademarks other than its own.

HAPTER

NTELLITOUCH

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 IntelliTouc h touchs creens 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 deliver ed as Products or components.

Buyer shall notify Seller in writing promptly (and in no case later than thirty (30) days after discov ery) of the failure of any Product to conform to the warranty set forth above; shall describe in commercially reasonable detail in such notice the symptoms assoc iated with such failure; and shall provide to Seller the opportun ity to inspect such Products as installed, if possible. The notice must be received by Seller during the Warranty Period for such product, unless otherwise directed in writing by the Seller. Within thirty (30) days after submitting such noti ce, Bu yer shall package the allegedly defective Product in its original ship ping carton(s) or a functional equivalent and shall ship to Seller at Buyer’s expense and risk.

Within a reasonable time after receipt of the allegedly defective Product and verification by Seller that the Product f ails to meet the warranty set for th above, Seller shall corr ect such failure by, at Seller’s options, either (i) modifying or repairing t he Product or (ii) rep lacing the Product. Such modification, repair, or replacement and the return shipment of the Product with minimum insurance to Buyer shall be at Se ller’s expense. Buye r shall be ar the r isk of loss or damage in transit, and may insure the Product. Buyer shall reimburse Seller for transportat ion cost incurred for Product returned but not found by Seller to be defective. Modifi cati on or repair, of Products may, at Seller’ s option , take place either at Seller ’s facilities or at Buyer’s premises. I f Seller is unable to modify, repair, or replace a Product to conform to the warranty set forth above, then Seller shall, at Seller’s option, either refund to Buyer or credit to Buyer’s account the purchase price of the Product less depreciation calculated on a straight-line basis over Seller’s stated Warranty Period.

10-Y

EAR

ARRANTY

iii

THESE REMEDIES SHALL BE THE BUYER’S EXCLUSIVE REMEDIES FOR BRE ACH OF WARR ANTY. EXCE PT 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. SELLER’S LIABILITY UNDER THE WARRANTY SHALL BE LIMITED TO A REFUND OF THE PURCHASE PRICE OF THE PR ODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR THE COST OF PROCUREMENT OR INSTALLATION OF SUBSTITUTE GOODS BY BUYER OR FOR ANY SPECIAL, CONSEQUENTIAL, INDIRECT, OR INCIDENTAL DAMAGES.

Buyer assumes the risk and agrees to indemnify Seller against and hold Seller harmless from all liability relating to (i) assessing the suitability for Buyer’s intended use of the Product s and of any system design or drawing and (ii) determining the complia nce of Buyer’s use of the Products with applicable laws, regulations, codes, and standards. Buyer retains and accepts full responsibil ity for all warranty and other claims relating to or arising from Buyer’s products, which include or incorporate Products or componen ts manufactured or supplied by Seller. Buyer is solely responsible for any and all representations and warranties regarding the Products made or authorized by Buyer. Buyer will indemnify Seller and hold Seller harmless from any liability, claims, los s, cos t, or expe nses (inc lu ding rea sonable a tto rney’s fees) a ttribu table to Buyer’s products or representations or warranties concerning same.

Table of Contents

IntelliTouch 10-Year Warranty. . . . . . . . . iii

Chapter 1

IntelliTouch Technology . . . . . . . . . . . . 1-1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

The IntelliTouch Touchscreen . . . . . . . . . . . . . . 1-2

The IntelliTouch Controller. . . . . . . . . . . . . . . . . 1-3

Driver Software . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Agency Approvals . . . . . . . . . . . . . . . . . . . . . . .1-4

Chapter 2

Component Installation. . . . . . . . . . . . . 2-5

Safety Information. . . . . . . . . . . . . . . . . . . . . . . 2-5

Work Area. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Protective Clothing . . . . . . . . . . . . . . . . . . . . 2-6

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Design Consider ations for CRTs and LCDs . . . 2-6

Bezel Design . . . . . . . . . . . . . . . . . . . . . . . .2-7

CRT Integration. . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Safety Information . . . . . . . . . . . . . . . . . . . . 2-8

Definition of Terms:. . . . . . . . . . . . . . . . . . . . 2-9

Suggested Tools. . . . . . . . . . . . . . . . . . . . . . 2-9

Summary of Installation Steps . . . . . . . . . . 2-10

Incoming Inspection . . . . . . . . . . . . . . . . . . 2-11

Unpacking the Touchscreen . . . . . . . . .2-11

Testing the Monitor . . . . . . . . . . . . . . . . 2-11

Disassembling the Monitor. . . . . . . . . . . . .2-11

Remove the Back Case. . . . . . . . . . . . . 2-12

Discharge the CRT . . . . . . . . . . . . . . . . 2-12

Remove the Ele ctronic Chassis. . . . . . .2-13

Remove the CRT. . . . . . . . . . . . . . . . . . 2-15

Verify Touchscreen Fit . . . . . . . . . . . . . . 2-16

Attaching the Touchscreen. . . . . . . . . . . . . 2-18

Spacing the CRT from the Bezel . . . . . . . . 2-20

Installing the Controller. . . . . . . . . . . . . . . . 2-21

Internal Serial Controller (2500S) . . . . . 2-22

External Serial Controller. . . . . . . . . . . . 2-25

Internal USB Controller (2500U) . . . . . .2-27

Routing the Touchscreen Cables . . . . . . . . 2-29

Reassembling th e Mo n ito r . . . . . . . . . . . . .2-29

Sealing the Monitor . . . . . . . . . . . . . . . . . . . . .2-30

Sealing Material Selection . . . . . . . . . . . . . 2-31

System Evaluation . . . . . . . . . . . . . . . . . . . 2-31

LCD Integration . . . . . . . . . . . . . . . . . . . . . . . .2-32

Safet y Informatio n. . . . . . . . . . . . . . . . . . . 2-32

Summary of Installati on Steps. . . . . . . . . . 2-33

Unpacking the Touchscreen . . . . . . . . . . . 2-33

Testing the Monitor . . . . . . . . . . . . . . . . 2-33

Disassembling the LC D Monitor . . . . . . . . 2-34

Definition of Terms . . . . . . . . . . . . . . . . 2-34

Tools and Equipment . . . . . . . . . . . . . . 2-35

Required Parts for Serial Connection . . 2-35 Required Parts for USB Connection. . . 2-35 Optional Parts for Serial Connection. . . 2-36

Optional Parts for USB Connection . . . 2-36

Notes on Disassembling the Monitor. . . . . 2-36

Removing the Rear Case . . . . . . . . . . . . . 2-37

Removing the LCD . . . . . . . . . . . . . . . . . . 2-37

Determining Touchscreen Fit. . . . . . . . . . . 2-38

Mounting the Touchscreen. . . . . . . . . . . . . 2-39

Sealing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Spacing the LCD from the Bezel. . . . . . . . 2-41

Installing the Controller . . . . . . . . . . . . . . . 2-42

Internal Serial Controller (2500S). . . . . 2-42

Internal USB Controller (2500U). . . . . . 2-43

Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44

Parasitic Tap of 5Vdc . . . . . . . . . . . . . . 2-44

Parasitic Tap of 7-30Vdc (DC to DC

converter) . . . . . . . . . . . . . . . . . . . . . . . 2-45

Modifying the Case for Serial Output. . . . . 2-46

Modifying the Case for USB Output. . . . . . 2-46

Re-assembling the Display . . . . . . . . . . . . 2-47

Appendix A

Troubleshooting Guide. . . . .A-49

The Troubleshooting Proc ess. . . . . . . . . . . . . A-49

Display Problems . . . . . . . . . . . . . . . . . . . . . . A-50

Software Troubleshooting . . . . . . . . . . . . . . . . A-50

Video Alignmen t Problems . . . . . . . . . . . . A-51

Hardware Troubleshooting . . . . . . . . . . . . . . . A-51

Serial Controller. . . . . . . . . . . . . . . . . . . . . A-52

Using the COMDUMP Utility. . . . . . . . . A-52

2500S Controller Protocol . . . . . . . . . . . . A-53

A-4002 Controller Protocol . . . . . . . . . . . A-53

RS-232 Connection s. . . . . . . . . . . . . . . A-54

Po wer Connections. . . . . . . . . . . . . . . . A-55

Touchscreen and Touchscreen Cables. . . . . . A-56

IC1 Cable . . . . . . . . . . . . . . . . . . . . . . . A-57

EC2 Cable. . . . . . . . . . . . . . . . . . . . . . . A-57

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. . . . . . .B-68

Agency Approvals. . . . . . . . . . . . . . . . . . . .B-68

2500U USB Controller Drawings . . . . . . . .B-69

IntelliTouch 2500S Serial Controller . . . . . . . .B-71

Jumper Settings. . . . . . . . . . . . . . . . . . .B-75

LED Diagnostic Characteristics. . . . . . .B-75

Agency Approvals. . . . . . . . . . . . . . . . . . . .B-76

Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . .B-77

Appendix C

Elo Part Numb ers . . . . . . . . . . .79

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . .83

Inde x. . . . . . . . . . . . . . . . . . . . . .89

List of Figures

IntelliTouch Touchscreen . . . . . . . . . . . .1-2

IntelliTouch controller . . . . . . . . . . . . . . 1-3

Bezel design . . . . . . . . . . . . . . . . . . 2-7

Bezel edge . . . . . . . . . . . . . . . . . . 2-8

Typ ical 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) . . . . . . . 2-27

Proper and Improper Sealing . . . . . . . . . 2-30

Proper and Improper Bezel Mounting . . . . 2-31

Attaching double-sided adhesive tape to the

touchscreen . . . . . . . . . . . . . . . 2-40

2500S Internal Serial Controller . . . . . . . 2-42

2500U USB controller . . . . . . . . . . . . . 2-43

DC to DC converter . . . . . . . . . . . . . . 2-45

Horizontal escutcheon plate . . . . . . . . . 2-47

Pin positions for the serial port connector . . A-54

Transducer and Wedge Assembly . . . . . . A-56

Pinouts for the IC1 Cable . . . . . . . . . . . A-57

DB9 and DB25 Connector Pin Positions . . . A-60 P2, USB board-mounted header and cable-

mounted plug. . . . . . . . . . . . . . . B-66

Pin diagram for touchscreen connector, P3, as

viewed from connector mating surfaces. B-66 Power connector board-mounted header and cable

mounted-plug. . . . . . . . . . . . . . . B-66

2500U USB Controller, top vie w . . . . . . . B-69

2500U USB Controller, thru-hole locations . . B-69

2500U USB Controller, bottom-view . . . . . B-70

2500U USB Controller, side vie w . . . . . . . B-70

Pin diagram for serial connector, P2, as viewed

from connector mati ng surfaces. . . . . B-72

Pin diagram for touchscreen connector, P3, as

viewed from connector mating surfaces. B-74 Pin diagram for power connecto r, P4, as viewed

from connector mati ng surfaces . . . . . B-74

2500S Serial Controller, top vie w . . . . . . . B-77

2500S Serial Controller, bottom view . . . . . B-77

2500S Serial Controller . . . . . . . . . . . . B-78

2500S Serial Controller, side vie w . . . . . . B-78

vii

viii

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 conn ector pin numbers

and signal descriptions . . . . . . . . . B-67

Power connector, P4 pins and signal

descriptions . . . . . . . . . . . . . . . B-67

Serial Connector, P2, signal names and

functions . . . . . . . . . . . . . . . . B-73

Serial signal electrical characteristics . . . . B-73

Touchscreen connector, P3, pins and signal

names . . . . . . . . . . . . . . . . . . B-74

Power connector, P4, pins and signal names . B-75 Jumper Loc ati ons and function if insta ll ed . . B-75

Intr oductio n

The IntelliTouch system has three main components: a clear solid glass screen formed to match the shape of a display, a sophisticated electr onic 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 material s such a s glas s. The t ouchscree n may be a flat gl as s panel or a segment of a sphe re or cy lind ri cal g la ss. Thi s pan el is ins tal le d over t he face of the display. Because there are no layers or coatings on the glass as with other technologies, the IntelliTouch touchscreen is extremely durable and allows a clear, sharp image.

HAPTER

NTELLITOUCH

C HAPTER

ECHNOLOGY

IntelliTouch touc hscreen features include :

• Excellent image clarity with high light transmission

• Extremely fast and sensitive, with the highest resolution of any touchscreen

• Excellent durability, resistant to deep scratches and abrasion

• Activated by a finger, gloved-hand or soft stylus

• Inherently stable, drift-free operation

• Dirt and splash sealing capa bility

• Z-axis response

• Standard sizes for flat, spherical, and cylindrical displays

• Choice of surface treatment (clear, anti-glare or priv acy filter)

• Custom size s avai lab l e for OEM quantities

• 10- year touchscree n w a r rant y

1-1

The IntelliTouch Touch screen

The IntelliTouc h 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 a nd receiving piezoel ectr ic transducer, and sets of reflector stripes. See Figure 2.3 on page 10 for details on the construct ion of an IntelliTouch touchscreen.

Figure 1.1

Surface wave energy is generated by the transmitting transducers mounted in the corners of the touchscr een. A set of reflector stripes refle cts these waves across the activ e area of the glas s and to the receiv i ng tran s du cer whi ch reconverts the surf ace waves into an electrical signal.

When a finger or other energy-absorbing object touches the touchscre en a portion of the wave is absorbed. The res ulting change in the received signal is analyzed by the controller and a digitized X and Y coordinate is determined. A Z-axis level is determined by measuring the amount of signal attenuation at the touch location. The X, Y, and Z coordinates are determined and the controller transmits them to the computer.

IntelliTouch Touchscreen

1-2 IntelliTouch/SecureTouch Guide

The IntelliTouch C ontro ller

The IntelliTouch controller provides the drive signal for the touchscreen, converts the recei ved analog signals into digital touch coordinates, and sends these coordinates to the computer.

The controller detec ts touc hes 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 scre en and “learns around” them. It incorporates those signals into the reference waveform to ignore the contaminants. If the contamination is removed, the controller relearns the refere nce signal.

Figure 1.2

Because of the stabili ty of the Int elliTouch system, video realignment is not necessary unless the position of the video image changes.

Resolution of the Intel liTouch system is defined by the controller and is typically 4096 x 4096, with the controller transmitting at a rate of 48 coordinates per second during a touch.

The controller performs advanced internal diagnostics as well as touchscreen diagnostics. The diagnostic results are obtain able through software as well as a diagnostic LED. USB and serial controllers are available.

IntelliTouch controller

1-3

Driver Software

Elo driver software pro vides a consistent software interface among all Elo touchscreens and contr ollers.

The driver software scales the absolute coordinates received from the touchscreen controller into translated screen coordina tes, 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 pro grams for the DOS, Windows 3.1, Windows CE, Windows 95/98, Windows NT, Windows 2000, OS/2, and Macintosh operating systems. Additional drivers a re also available. Additional operating systems are supported through outside sources. Refer to the Elo web site, www.elotouch.com, for details.

If you cannot use an avai la ble driver, Elo can supply all the touchscreen related information you will need to write your own driver for any type of system, including UNIX workstations, real-time systems, and embedded systems. For the 2500S contr oller, the SmartSe t™ Touchscreen Controlle r Family Technical Reference Manual which is available on the Elo website, provide information on this process. Machine-independent source code is included on a companion disk and Web site, www.elotouch.com.

Agency Approvals

Elo IntelliTouch touc hscreens and controllers are “CNR/USR” UL Recogni zed Components for USA and C anada, Category NWGQ2, I nformation Technol ogy Equipment Including Business Equipment.

Elo IntelliTouch touc hscreens and controllers are TUV Bauart certified as components.

Elo IntelliTouch touchscreens and controllers have been tested for compliance with FCC Part 15 Class B limits.

1. Depending on the application, it may be necessary to pay special attention to system grounding and

shieldin g, an d it may be ne cessary to apply ferrit e suppressor beads.

1-4 IntelliTouch/SecureTouch Guide

This chapter outl ines the procedures for installing touchscreen componen ts that will convert your monitor into a touchmonitor. Details are given on mounting the touchscreen, controller, and connecting cabl es.

Safe ty Inform ation

C HAPTER

HAPTER

OMPONENT INSTALLATION

W ARN ING

The touchscreen installation procedure outlined in this chapter may require exposure to high-voltage components and handl ing of the CRT. This procedure can be dangerous and an accident is potentially lethal . Therefore, the procedure should only be perfo rmed by a qualif ied person. Read this entire chapter before attempting a touchscreen installation.

Follow the procedure caref ully, work with the pow er off and the unit unplugged, observe all warnings, and wear protective clothing. Elo is not liable for damage or injury resu lt ing from the users act ions.

Consider purchasi ng a touch monitor from Elo if you do not have previous experience working with touc hscreens and disassembling displays. Elo also offers touchscreen installation services in quantity for a variety of displays or can recommend third-party intergators in your area.

Work Area

Before proceeding with the installation, prepare a padded work surface. A plastic waste baske t is recommended for supporting the CRT during part of the installation.

2-5

Protective Clothing

Wear safety glasses, gloves, a rubber apron, and heavy protective clothing for any portion of this proced ure that involves handling or working near the CRT.

Getting Started

There are two types of display technologies, CRT displays and LCD displays. IntelliTouch tou chscre ens are availabl e for most displ ays, howe ver ea ch display may pose unique installat ion issues. If, afte r reading these instructio ns, you need further assist ance please contact E lo Ap plicat i on Engi n eerin g for mo re information.

These instructions assume you have purchased an Elo Touchscreen Kit and Touchscreen Installation Kit. Only a minimum of equipment and materials is required beyond what is provide d in the kits. Before proceeding with the component inte gration design conside rations, please revie w the section on page 6, De sign Considerations for CRTs and LCDs, in order to optimize your touchmonitor performance.

Design Co nsiderat ions for CR Ts and LCD s

Before designing an LCD or a CRT touchmonitor you should consider the followin g criter ia (all detai led late r in t he chapter.):

• Ensure the touchscree n active area and overall glass dimensions are compatible with the displa y viewing area. For CRT displays, additionally check to make sure the radius of curva ture (ROC) of the display matches the radius of curvature of the touchscreen.

• Ensure that adequate powe r is avai lable for the controller.

• Ensure the bezel does not contact the transducers located on the edge of the touchscreen.

• Ensure the bezel lands in the sealing area of the touchscreen. See Figure 2.1 on page 7.

• Ensure there is a suitable location to mount the IntelliTouch controller.

• A seal should be use d between the display bezel and the touchscre en. Ensure that the display and its mounting can withstand the force from the compressed seal. See page 30.

• Ensure the CRT tube can be moved back so there is space for the touchscreen.

2-6 IntelliTouch/SecureTouch Guide

• To prevent touchscreen breakage, there should be a compliant gasket between the back of the tou c hsc reen an d the fro nt of the display to allow for variation in the sur face s when asse mbling. A gap is also r equire d betwe en the touchscreen a nd the face of an LCD display to prevent damage to the displ ay.

• 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 som e bezel ideas in or der to help you mount the bezel to the touch scree n .

Hard Lip

Bezel

Figure 2.1

Transducer Wedge

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

Bezel design

With thick bezel, mill out hole for transducer wedge.

Before

Compression

Even on a beveled touchscreen, the transducer sticks up 1mm above the glass. Add a spacer to ensure clearan ce . Seal thickness will not suffice.

After

Compression

Another idea: Add a hard lip behind the seal to control compression.

2-7

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

It may be necessary to cut r ibs and struts inside the bez el. Cutting these ribs and struts does not usually caus e difficulties, although the stif fness of the bezel may be reduced slightly . Try not to c ut into the posts for the CRT attachment sc rews. Bezel and tube combinations tha t require this cut are rare.

Generally, a total cleara nce between the edge of the touchscre en and any ribs or struts of at least 0.25-inch (6 mm) in both axes is necessary. This prevents the interferen ce fit problem and allows for variation in touchscreen mounting position.

CR T Integr ation

Safety Infor mati on

Before proceeding with the installation, prepare a padded work surface. A plastic waste baske t is recommended for supporting the CRT during part of the installat ion. 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.

Note:

This document describes the basic tasks common to the majority of CRT monitor integrations. These in structions assume an audience of trained integration personn el.

Bezel ed g e

2-8 IntelliTouch/SecureTouch Guide

Definiti on o f Terms:

MONITOR: The term "monitor" refers only to t he monitor, tele vision, or other display that is to be integra ted.

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. Th e cas e is the part tha t sep ara te s from the fron t bezel . Th e cas e normally covers the top, sides, back and bottom of the monitor assembly.

LCD: Liquid Crystal Display. Also referred to as the Panel. CONTROLLER: The electronic device that converts touch data into USB

information. For purposes of this document the controller referred to is the 2500U, which is the Elo internal IntelliTouch USB controller 2500U. Part number 714259-000.

Suggested Tools

Along with a copy of the monitor manufactur er’s manual, the following list of tools may be needed to install the touchscreen. Some of the tools are optional, but useful.

• Long (at least 9 inches, 230 mm) flat blade screwdriver with insula ted handle

• Clip lead or heavy-gauge wire

• #2 Phillips screwdriver

• Scissors

• X-Acto knife (No. 11 blade) or hand milling tool

• DB9 hole punch (not needed for 2500U)

•Cable ties

• Household glass cleane r

• Paper towels

• Small containers or plastic bags to hold loose parts

The Elo Touchscreen Insta lla tion Kit is also recommended, and includes commonly used materials neede d for touc hscreen installation. This kit is useful for identifyi ng preferred materials for your own procurement and may also be cost-effective and convenient when purchased for a limited number of installations. (See “Elo Part Numbers” on page 79.)

2-9

Summ ar y of In st all ati on Ste p s

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 compati bility may not be confirmed until well into the installation. IntelliTouch touc hscreens can be installed on most types of CRT displays. Figure 2.3 shows a typical installation.

Figure 2.3

Most displays require complete disassembly, including remova l of the CRT, to install a touchscr een. Dis ass embling the displa y ca n be a da nger ous proce dure if done improperly. Any damage to the displa y or the touchscreen as a result of improper installation is the installer’s responsibility. Without prior approval of the display manufacturer, you will probably void the display’s warranty by disassembling it. Also, it will be necessary to recertify the display and touchscreen syst em for regul ato ry agen cies suc h as FC C, CE and U L /CSA if those certific ations were originally present and need to be maintained for your intended application.

1. To complete the first integration may take several hours.

2-10 IntelliTouch/SecureTouch Guide

Typical Int elliTouch Touchscr een Installation

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 installa tion, or if a wire is pulled loose, the touchscreen will not operate. Avoid excessive handling and stress on the touchs creen cable . Wear gloves to avo id getting finge rpr ints on the touchscreen . The touc hscreens are pre-cl ean e d by Elo .

Testing the Monitor

The CRT display must be in good working order before beginning the installation of the touchscreen. Inspect the monitor for cosmetic flaws or damage. With a new display, it is suggested that you t est the display by running it overnight. Check for acce ptable color, linearity, br ightness, contrast, distortion, and other QC tests.

Disassembling the Monitor

Disassemble the monito r on a large, well -lit work surface. Leave space to set aside major display compon ents. Group screws and other hardware in small containers or in specif ic areas on the work surface as you remove them, in relation to the part of the display where you are working.

Most display manufactur ers connect the major components with detachable cables that have label ed and keyed con nectors; these cables are of lengths that will usually connect to only one place. Also, screws are identifiable by type and size, and usually will not f it in the wrong pla ce. The most dif ficult pr obl em with missing or wrong hardware or connec tions will be with ground cables that attach to obscure ground points on the metal chassis. When in doubt, make notes of the connection points.

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W ARN ING

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 t o the be zel or frame.

While remov ing the bac k case, n ote the cle ara nce be t ween the insid e rea r surface of the c ase a nd a small circuit board plugge d into a socket on the end of the CRT. If there is not enough clearance to move the CRT and this circuit board about.25 inch (6 mm) toward the rear of the case, you may be unable to successfully install a touchscreen on the display and completely reinstall the back case. Contact Elo Application Engineering, (1-800-557-1458 x6) for possible alter natives.

After the back case is removed, the CRT is substantially exposed. Use extreme care when working around the CRT.

Impact or forc e against the neck of the CRT, or the pins at the end where the small cir cuit board is attached, could crack the tube, resulting in loss of vacuum or implosion of the tube. Either result destroys the CRT. Implosion (collapse of the glass inward, caused by the high va cuum in side th e tube), foll owed b y th e rebound of many gl ass pi eces ou tward , is potential ly l ethal to anyone in the i mmedi ate area . Handl e the CR T ca reful ly, keep tools away from the CRT, and wear protective clothing including eye protection and gloves.

Discharge the CRT

W ARN ING

Dangerous voltages may be pr esent on the CRT anode. The anode m ay retain a very dangerous v ol tage e v en af ter t he disp la y has been o ff f or da ys . Whil e most CRT m onit ors now incorporat e bleeder circuits t o discharge the CRT, one must not assume that the CRT is properly dischar ged. Accidental contact with the anode lead or anode button (the small hole in the CRT glass where the anode lead i s att ached) prior to discharge may result in a potentially lethal shock. Follow the procedure below carefully.

The anode le ad of the di splay fe eds hi gh vol tage from the f lyback t ransfor mer to the anode button on the CRT. The anode lead is usually red in color, and the actual connecti on to the anode button is usually covered by a large rubber suction cup-li ke boot. In most displ ays, th e button i s locate d on the ta pered face, or bell, of the CRT glass near the top of the display. See Figure 2.3 on page 10.

2-12 IntelliTouch/SecureTouch Guide

W ARN ING

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 str ap.

2 Connect the other end of the clip lead or wire to the stem of a flat blade

screwdriver that ha s an insulated handle.

3 Hold the screwdriver by the insulated handle only. Insert the blade of the

screwdriver under the rubber boot and make contact with the anode lead at the button. A distinct “snap” may or may not be heard as it discharges, depending on the amount of charge pres ent on the anode.

4 Disconnect the anode lead from the button by unhooking the spring wire

clips. Note the location of the anode for proper CRT orientation during reassembly.

The CRT will re gain a charge over ti m e, even after it has been discharged. To avoid a dangerous elect ric shock, always discharge the CR T just before handling it , and treat it with respect thereafter.

Remove the Electronic Chassis

Continue disassembling the display until the face of the CRT is completely exposed. The degree of disassembly required will vary from display to display.

Normally the next step will be to remove the electronics chassis from the display. This requires removal of a small circuit board that is usually plugged into the socket on the end of the CRT. The circuit board is often glued to the CRT socket with a soft adhesive which must be cut away to remove the board. Several cables must als o be unplugged from the electronics. Typically the se cables are:

• Four wires from the yoke of the CRT, typically in a single four-pin connector. The yoke is the copper wire and magnet assembly at the base of the neck of the CRT. MPR II-compliant monit ors may have addit ional cables and connectors on the yoke.

• A two-wire cable from the degaussing coil. This coil may be attached to the CRT, or be laying out of sight between the CRT and the bezel. Some monitors may have two separate coi ls.

• A one- or two-wire ground cable connected between the CRT circuit board and a ground strap. This strap is a long, uninsulated, braided wire which is spring-tensioned to maintain contact with the bell of the CRT.

• Various cables connected to the power switch, pilot light, front panel controls, etc.

2-13

• 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 prelimina ry step in determining touchscreen/display compatibility should be pe rformed at this point. Before r emoving the electronics chassis, note the clearance betwe en the chassis components and the bell of the CRT. Since the standard technique for mounting the touchscreen involves moving the CRT back in the display chassi s, the re must be enough clearance between components on the chassis and the CRT after allowing for about 0.25-inch (6 mm) movement of the CRT towards the rear of the chassis. Fail ure to allow for this clearanc e requi rement may result in mechanical damage later (especially in shipping). It may also cause electrical damage from shorts between “live” components on the chassis, such as heat sinks or uninsulated component leads, and the bell of the CRT which is usually painted with a conductive coating tha t is grounded to the chassis through the braided wire ground strap. Repositioning or substituting low profile components may be an option. Contact Elo Technical Support, (1-800-557-1458 x6), for assistance.

After disconnect ing any necessary cables remove the screws that atta ch the electronics ch assis to the bezel. Note the bezel is essentially where all parts of the mechanical assembl y are atta ched, unless you have a rare unit that has an internal frame . A s you pu ll the chas s is awa y from the b eze l, mak e sure tha t cables and circuit boa rds do not hit the neck of the CRT and that nothing becomes caught on the adjustment r ings or other components on the neck of the CRT. Also watch for other cables that need to be disconnected. After removal, set the electron ics ch assis aside .

2-14 IntelliTouch/SecureTouch Guide

Remove the CRT

Removal of the CRT is next. Prepare a soft surface to set the CRT on. Remove the screws attachi ng the CRT to the bez el, and the n 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.

Several other preliminary compatibility requirements should now be assessed:

• Position the CRT so the face is accessible, providing a soft cushion for the neck and the yoke if they must rest on the work surfa ce. Alte rnative ly, set th e CRT face-up in an office-type plastic was te basket, making su re that the tube is not resting on the neck (The small thin part of the CRT is the neck). Place the touchscree n on the face of the tube, an d ch eck to s ee tha t the face o f the CRT and touchs creen are about the s ame size, and tha t the radi us of cur vatur e (ROC) of each surface matches well. I f both of these conditions are not met, you may not have the prope r touchscreen f or the displa y. Most color displays have standard size CRT's with standard ROC's, and Elo has touchscreens for most of them.

• Next, determine if the touchscreen will fit in the bezel without modificati ons to the bezel. Modifications, if necessary, should be done without compromising the mechanical integrity of the display.

• Lay the touchscreen face-down in the bezel, being careful not to damage the transducers. Leave the degaussing coil in place, if present. The degaussing coil is a hoop, often located between the CRT and bezel, approximately

0.25-inch (6 mm) thick, with a two-wire cable and connector. The coil was probably unplugged from the power supply earlier.

If the touchscree n will not fit flush again st the lip of the bezel, do not force it . An interference fit be tween the edge of an IntelliTouch touc hscreen and some of the plastic ribs f ound in displa y bezels c an pinch and break the small wires which carry the signals al ong the edges of the touchscreen or even result in fracture of the glass after reassembly.

It may be necessary to cut these ribs and struts inside the bezel. Cutting these ribs and struts does not usually cause difficult ies although the st iffness 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 cleara nce between the e dge of the touchscr een and any ribs or struts of at least 0.25-inch (6 mm) in both axe s is necessary. This prevents the interferenc e fit problem discussed above and allows for variat ion in touchscreen mounting position.

2-15

The potential inte rference between the degaussing coil and the touchsc reen must also be evalua ted. The coil will usually fit between t he 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 reloc ate the coil to the bell side of the CRT. Normally, this does not significantly reduce the coil’s effectiveness. However, you must determine this by inspecting the display for color proble ms aft er reas s embl y .

• Check for adequate clearance of the transducers and the cable from the bezel structure. If the position of the cable causes difficulty, the touchscreen may be rotated 180° (only if the touchscreen is sealed and using Elo drivers).The preferred or ientation of the IntelliTouch touchscreen is with the cable exiting from the right side, when viewed from the fr ont of the display. Rotation will cause an inversion of the outp ut coordinates, which will be compensated for automatically by Elo dri ver software, but perhaps not by other driver s. ( Flat touchscreens should ha ve the reflector stripes on the side facing the user.)

V erify Touchscreen Fit

1 Check to ensure touchscreen dimensions match CRT display. Pla ce the

touchscreen on the face of the tube to see that the face of the CRT and touchscreen are about the same size , a nd that the radius of curvature (ROC) of each surface matches well. I f both of these conditions are not met, you may not have the proper touchscreen for the display. Most color displays have standard size CRT's with standard ROC's, and Elo has touchscreens for most of them.

2 Determine if the touchscreen will fit in the bezel wit hout modific ations to th e

bezel. The bezel should not touch the transducers and should land in the sealing area, not on the reflector strips.

Modifications, if necessary, should be done without compromising the mechanical integrity of the display. Also see Bezel Design section for r ecommen dations.

Note:

2. Clearance around the transducers should be 1-2 mm clearance above transducers (to prevent dampening vibrat ion, electrical short or breakage), and 3-5 mm around transdu cers. Allow for manufacturing variances of touch screen and integration. If the position of the cable causes difficulty, the touchscreen may be rotated 180°. The preferred orientation of the IntelliTouch touchscreen is with the cable exiting from the ri ght side, when view ed from the front of the display. Rotation will caus e an inversion of the output coordinat es, which will be compensated for autom atically by Elo driver software, but perhaps not by other drivers. (Flat touchscreens shoul d have the reflector stripes on the side facing the use r.)

2-16 IntelliTouch/SecureTouch Guide

If the touchscreen will not fit flush agai nst the lip of the bezel, do not force it. An interference fit between the edge of an IntelliTouch touchscreen and some of the plastic ribs found in displ ay bezels can pi nch and break the small wires which carry the signals along the edges of t he touchscreen or even result in fracture of the glass after reassembly.

3 It may be necessary to cut ribs and struts inside the bezel. Cutting these ribs

and struts does not usuall y cause difficulties, althoug h 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 cleara nce between the e dge of the touchscr een and any ribs or struts of at least 0.25-inch (6 mm) in both axe s is necessary. This prevents the interference fit problem discussed above, and allows for variation in touchscreen mounting position.

4 The potential interference between the degaussing coil and the touchscreen

must also be evalua ted. The coil will usually fit between t he 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 reloc ate the coil to the bell side of the CRT. Normally, this does not significantly reduce the coil’s effectiveness. However, you must determine this by inspecting the display for color proble ms aft er reas s embl y .

5 Check for adequate clearance of the transducers and the cable from the bezel

structure. If the position of the cable causes difficulty, the touchscreen may be rotated 180° (only if the touchscreen is sealed and using Elo drivers).

6 The preferred orientation of the IntelliTouch touchscreen is with the cable

exiting from the right side, when viewed from the front of the monitor. Rotation will cause an inver sion of the output coordinates, which will be compensated for automatically by Elo driver software, but perhaps not by other drivers. (Flat touchscreens should have the reflector strips on the side facing the user.)

2-17

Attaching the T ouchscreen

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 touchsc reen.

1 Check room for cable routing:

• Route away from noise sourc es (flyback transfor mer, 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 inst allation.

• Use black background to ensure fingerprints and smudges are not visible.

• Compressed air is best to remove dust.

3 Use double-sided high tack adhesive tape

touchscreen to the display.

• 3 mm thi ck fo r cu rved

• 2 mm thick for flats > 15"

• 1 mm thi ck fo r fla ts <= 1 5"

on all four sides to attach the

• Acts as dust seal as well as an adhesive. (Make a flat “T” in corners for

dust seal.)

• Or substitute foam tape on two sides

• Or use metal frame on flats, but still use foam tape for dust seal.

3.Refer to “Elo Part Numbers” on pag e C-79 to ensure you are using the prop er adhesive

2-18 IntelliTouch/SecureTouch Guide

Use two layers of the double-si ded adhesive tape to achieve a total thickness of 1/16-inch ( 2 mm). Whil e specific touchsc reen and C RT combinations may allow the use of thi nner materia ls, 1/16- inch (2 mm) is general ly necessar y to allow for variat ions in ROC between the two gla ss surfaces. Review the fit between the touchscreen and the CRT before appl ying 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. See Figure 2.4 on page 19 for typical placem en t. Y ou wan t the seal in g tap e on the rear o f the touc hscreen so it can’t be seen in t he viewable ar ea once r eassemble d. If the re is a good fit on all four edges, you may want to use double- sided a dhesive tape on al l four edges. When doing this, move the adhesive tape in slightly on one pair of edges and add foam sealing tape outside these two edges. The thicker foam tape will keep the adhesive tape away from the CRT until you are ready to adhere the touchscr een to the display.

Figure 2.4

Proper placement of adhesive tape to the touchscreen.

In general, the adhesive tape should be set back slightly from the edge of the active area of the touchscreen. The adhesive tape should be attached to the glass. When the display is reassembled, the mounting tape should not be visible. Do not remove the liner from the exposed side of the adhesive tape yet.

Cut and place the foam sealing tape on the back of the touchscreen to form a dust seal as shown in Figure on page 31. This seal is particularly important because the CRT is a good electrostatic preci pitator and will attract dust. The adhesive tape and foam sealing tape should form a complete seal around the touchscreen. Do not leave any gaps. The sealing tape should not be visible when the display is reassembl ed.

Practice aligning the touchscreen on the CRT without removing the adhesive tape liner. The installation can tolerate some horizontal and vertical shift. However, rotational skew between the touchscreen and display axes canno t be easily compensate d for in the video alig nment, and will also interfe re with proper mounting of the tube in the bezel.

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When you have a good feel for the placement of the touchscreen, clean the back side of the touchscr een and the face of the CRT again. Avoid all cont act 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 a ir. Remove the liner from the adhesive tape and align the touchscr een on the display. The thicker foam tape will keep the adhesive tape away from the CRT until you are ready to adher e the touchscreen to the display. Now press the touchscreen firmly against the CRT.

If you must remove the touchscreen from the CRT, cut the adhesive tape away with a sharp thin blade, such as an X-Acto knife. The touchscreen glass will probably break if you try to pull it off by a corner or an edge. Shave the old adhesive tape from the touchscreen and CRT with the knife. Adhesive residues c an be r emoved wi th d enatured a lcohol , which wil l l eave st reaks and fingerprint smears. Use glass cleaner for the final cleaning pr ior to reapplication of new tape.

4 Place touchscreen on CRT straight and centered. 5 Peel off 3 cm of tape backer in two opposite corners. Fold to make tabs. 6 Pull back on tab to remove tape backer from under touchscreen while

pres s in g on tou chsc re en.

7 Ensure there is nothing, such as tape, touching the reflector strips or

transducers.

Spac in g th e CRT fr om the B ezel

The last part of the touchscreen mounting procedure is to determine the appropriate spacing of the CRT from the bezel, (with the touchs creen attached), and to reinstall the CRT with the requi red spacers in place (refer to Figure 2.8 on page 31). Do not clamp the touchscreen between the bezel and the CRT without proper spacers as breakage will almost certainly occur. The nominal thickness of the touchsc reen and the two layers of adhesive tape is 3/16-inch (5 mm). If the touchscreen is to be in contact with the bezel, 3/16-inch (5 mm) nominal spacers would be requir ed.

Because the original CRT face-t o-bezel mount is often an interference fit, with the bezel shape alter ed slight ly to draw it up ti ghtly a gains t the CRT, you shoul d start with a 1/16-inch (2 mm) thicker spacer than the nominal dimension above. Two thicknesses of spacers, plus additional washers to use as shims, are available in the Touchscreen Installation Kit. (See “Elo Part Numbers” on page C-79 for Touchscreen Ins tal lation Kit).

2-20 IntelliTouch/SecureTouch Guide

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 space rs, 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" provide d in the Touchscreen Installati on Kit.

When spacers for the desired gap have been selected, install the CRT. Make sure you have previously reinstalled the degaussing coil. Select a screw that is long enough to compensate for the spacer thickness (provides at least three full turns into the mounting post thr eads) but not so long as to penetrate the surface of the bezel. Over-tightening the screws may strip or split the mounting posts.

Installing the Controller

Elo offers IntelliTouch USB or serial (RS-232) controllers which are typically installed int ernal to the display.

Before installing an IntelliTouch controller, you need to ensure the following design condition s:

• Ensure there is space for the controller and the cable headers.

• Note that cable routing may contribute to noise and crosstalk. Make sure

the controller is pla ced away from voltage sources.

• Ensure there is space for an inte rn al DC-to-DC converter or AC power supply if either is requ ired.

Note:

• Verify power source and check specs for adequate power. The 2500 controllers use +5V@60 mA ±5% regulated.

• Ensure sufficie nt electromagnetic Interference (EMI) suppression. Instal ling a touchscreen and controller will affect the EMI characteristics of the display.

Ensure sufficient heat d issipation. The IntelliTouch serial controller dissipates som e heat (less than 1 wat t). A typical power supply, if requir ed, may dissipa te sever al watts more. This places an addi ti onal load on the cooling system of the display. The available locations to mount a controller and po wer supply may als o aff ect the cooling system of the displa y. Only applicable if you are not using AC-to-DC power supply.

• Ensure controller can be mounted securely to metal bracket and grounded.

• Ground at least one mounting hole, but for best EMI characteristics,

ground all four mounting holes.

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Internal Serial Controller (2500S)

The mounting holes of the IntelliTouch serial controllers are sized for 0.156inch (4mm) snap-in standoff s. All IntelliTouch touchscree ns have a cable termination that mates directly with the male header (P3) on the controller. See Appendix B for specific mounting dim ensions and connections.

Figure 2.5

Touchscree n Cabl ing S ystem for Internal Serial Controller

Follow these steps to inst all an IntelliTouch serial controller:

1 Evaluate the monitor for proper posit ioning of the cont rol ler. Make sure th ere

is sufficient space for cable headers .

2 Evaluate the back case of the monitor to determine the best position for the

DB9 female connector. A hole for this connector may be furnished in a variety of ways: a) mounting the connector to a chassis member that is exposed to the display exte rior, b) mounting the connector to a chassis member with a hole in the exterior of the case to provide access to the connector, and c) mounting the connector to the case.

3 Mount and ground the controller card following one of the two methods:

• Mount the controller 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 provide d in the kit (See “Elo Part Numbers” on page C-79 for installa tion kit part number). On the 2500S, all mounting holes are plated.

2-22 IntelliTouch/SecureTouch Guide

• If the controller cannot be mounted to a metal chassis, use a ground wire

with a lug attached to connect one of the contro ller'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 connec tor (See “Elo Part Numbers” on page 79 for part number) at P4 on the controlle r. Connect the other end to a power source. If a suitable +5 Vdc power source cannot be found inside the displa y, 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 6Key 7N/C 8 Chassis Frame ground connectio n 9 -Reset Open collec tor input: = normal operatio n; 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 c onnected. 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 pi n 5 of the P4 conne ctor. Nominal current through the LED will be 6 mA, so a low-operating current LED should be used. An external resistor is not required.

2-23

5 Connect the 2x5 female connector, on the serial output cabl e (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. If the DB9 connector she ll is not already grounded, attach the ground wire supplied in the kit to one of the DB9s mounting screws and the other end to chassis ground.

6 Adhere the metal plate labeled with the legend, “Touchscr een Interface”, to

the outside of the bulkhead-mounted DB9 connector. A similar plate (See “Elo Part Numbers” on page 79) is also available with vertical labeling.

7 Label the monitor to indicate what IntelliTouch serial controller is installe d

inside the display and include its jumper settings, if any.

2-24 IntelliTouch/SecureTouch Guide

CAUT ION

External Serial Controller

An external serial cont roller is the best choice for many integrator s for several reasons:

• No additional cables are requir ed to install the controller . The 30-inc h touchscreen c able is routed thr ough the rear of the display case to a 2x6 male connector lo cated on the r ear of the control le r. Once the contr oller is inst alle d on the rear of the display, little or none of the touchscreen cable is visible .

• The base of the controller may be permanently attached to the rear of the display, but is easily removed from the display if necessary.

• The serial cable is permanently connected to the controller and features an armored, moisture-resistant sleeve where the cable enters the controller enclosure.

• An external serial cont r oller offers the added flexibil ity of using a keyboard tap or wall-mount power supply (See “Elo Part Numbers” on page 79) if using an internal power sourc e is inconvenient or impractical. This featur e places fewer constra ints on the design and location of kiosks and other applications.

Follow these steps to inst all the IntelliTouch external serial controller:

1 Determine supply power source to the controller. The controller requires +5

Vdc regulated pow er (± 0.25 Vdc) with 100 mA typical. Average power dissipation is 0.7 W.

Before making any attempt to power the controller from any monitor power source, you should confi rm the inst allation with your monitor supplier. F ailure to observe this caution may destroy the monitor or seriously impair monitor performance.

• Provided you first confir m the installation with your monitor supplier, you may attach a dire ct pow er ca ble t o a +5 Vdc sou rc e ins i de the d ispl ay 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). Typical converter power consumption is approximately 1 W. Remember that each integration situation is unique; you must carefully evaluate available power rails and consi der how drawing additional powe r fr om the display will affect monitor performance .

If you have a suitable +5 Vdc power source, atta ch the direct power cable harness (See “Elo Part Numbers” on page 79) to the source, red to + 5 Vdc and black to common. You must attach the green ground cable to a suitable chassis ground for noise immunity and safety considerations. Also ensure that the cable is long enough to reac h the back of the monitor and the controller.

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CAUT ION

Observe polarity when connecting the power leads to the power sup ply. Reversing polarity ma y dam age the controller.

Possible power supply sourc es included:

• A direct power cable to a +5 Vdc source inside the dis play or tap unregul ated 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. You must attach the green ground cable to a suitable chassis ground for noise immunity and safety considerations. Observe polarity when connect ing the power leads to the power supply. Reversing polarity will damage the controller.

• Typical converter power consumption is approxim ately 1 W. Remember

that each integration situation is unique; you must carefully evaluate available power rails and consi der how dr awing additi onal powe r from the display will affect monitor performance.

• Install a powe r supply which requires a 100-240 Vac input. Connect a power cable harness to P4 on the controller, a 2x5 header with pins on 0.100-inch (2.54 mm) centers. Use a ribbon cabl e with an IDC connect or or crimp-towire pin receptacles. An acceptable plug can be selected from Molex series 70450, Amp AMPMODU Mod. IV product line, or Berg mini-latch housing with Mini-PV pins. Connect a power supply to the harness and then to AC.

• If none of the above options are practical, you must use either an optional

keyboard power ta p or wall-mount power supply to furnish +5 Vdc power to the contr o ller.

Before using a keyboard power tap, be sure sufficient power is available for the touchscreen controller or damage ma y occur to the computer.

Before connecting a keyboard power tap to the contr oller, be sure that po wer to the CPU is OFF. Connecting a keyboard power tap to a powered CPU may seriously damage the CPU or the controller and will blow the keyboard fuse.

1 Decide where to mount the controller on the rear of the display case. After

choosing a location, use masking tape to hold the template in the desired spot and drill a 1-inch diameter hole for cabling exiting the display and drill two holes for screws that will be mounted in the display case.

2 Rou te the tou c hsc reen cab le (an d power cable if using an int ernal ly locat ed

power source) through the 1-inch diamet er hole in the displa y case. Inse rt the touchscreen cable into the keyed receptacle in the rear of the controlle r box. You will hear a “click” when the cable connector is properly connected to the controller. Pull any excess cabling back into the display case and attac h the controller to the display case.

3 Wrap excess cabling with tie wraps as required, and pr oceed to “Routing the

Touchscreen Cables ” on page 2-29.

2-26 IntelliTouch/SecureTouch Guide

Internal USB Controller (2500U )

The mounting holes for the 2500U USB controll er 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 .

CAUT ION

Figure 2.6

Internal USB Controller (2500U)

Follow these steps to inst all the IntelliTouch 2500U USB controller:

1 Evaluate the monitor for proper posit ioning of the cont rol ler. Make sure th ere

is sufficient space for cable headers .

2 Evaluate the back case of the monitor to determine the best position for the

USB connector. There are two possible configurations for insta lling the USB controller.

• Configuration 1: mount the controller card so the USB connector is flush

with the back of the mo ni tor .

• Configuration 2: mount the controller inside the controller inside the

monitor and use the Elo USB cable pack (See “Elo Part Numbers” on page 79) to mount a USB connector.

2-27

3 Mount and ground the controller card. The grounding scheme for the

controller shou ld 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 scr ews

and spacers. It can be grounded through one of the mounting holes by using one of the No.6 sheet metal screws and space rs provided in the kit.

• If the controller cannot be mounted to a metal chassis, use a ground wire

with a lug attached to connect one of the contro ller's plated-through mounting holes to chassis ground.

4 Connect the power cable harness to the 2x5 male connector 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 a dedicated power supply. The 2500 U contr oller powe r r equirement s are +5 Vdc nomi nal. Re fer to Appendix C for current requirements.

5 If you have grounded the controller to the metal chassis as prefer red, the

chassis ground connec tion through the power connector, P4 pin 8, does not need to be connected.

6 Plug the X007X cable between the card and the bulk head mounting USB

connector.

7 Adhere the metal plate labeled with the legend, “Touchscr een Interface” to

the outside of the bulkhead-mounted USB connector. A similar plate (see pg. 79 for part number) is also available with vertical labeling.

8 Label the monitor to indicate that an IntelliTouch 2500U USB controller is

installed insi de the display.

2-28 IntelliTouch/SecureTouch Guide

Routing the Touchscreen Cables

The intern al cables that car ry the analog touchs creen signa ls are subject to interferen ce from variou s source s within t he display . The routing of the se c ables should avoid the following a reas, listed in order of importance:

• flyback transformer-CRT (anode lead)

• anode lead-CRT

• inverter secti on of the power supply-Flat Panels only (most displa y power supplies are switching power supplies, and the main DC to AC inversion section produces most of the noise)

• yoke-CRT

• RGB video drive section of the displa y

• video input cable

• horizontal and vertical oscillator/drive sections-CRT (large caps)

Once acceptable cabl e positioning is determined, tie the cabl e down to avoid movement during shipment. In addition to careful cable routing, other EMI suppression techniques may be necessary to satisfy agency approval requirements. Use ferrite beads or other radio frequency (RF) suppression elements, additional shielding, and different gr ounding techniques as needed. Also, attach all excess cable/service loops as close to the chassis as practical to reduce noise emissions.

Reassembling the Monitor

With the touchscreen mounte d, a nd the cable routing and exterior interface determined, the display must be reassembled. Reassembly is genera lly in reverse order of disa ssembly. Beware of potential clearanc e problems between the bell of t he CRT an d the e lectro nics chas sis, a s sho rts in this area can pr oduce catastrophi c failure s of the displa y. Also, if the insi de surfa ce of the back case is paint e d with a conductive c o a t ing, watch for s horts betwe e n th e CRT c i r c u i t board and the rear of the back case, as these can also produce disastrous results .

When the electronics chassis is reinstalled, the CRT circuit board is usually carried along with it . It is often adv isable to have a second person assist you, to insure that this circ uit board and various other cables do not interfere with the yoke or neck of the CRT. Safety glasses, gloves, heavy protective clothing, and

caution are strongly adv ised for all participants.

2-29

Reconnect all cables that were removed during the disassembly procedure. Watch for single ground connections from the CRT mount to the chassis, between individua l chassis members, etc., which may have lugs and screws to connect them, or sometimes individual push-on solderless connectors. Failure

to reconnect these impor tant cables may result in improper performanc e of the display after reasse mbly and may render the unit unsafe.

Re-glue the CRT circuit board to the connector with an electronic-grade (non-corrosive) silicone adhesive (such as GE RTV-162). Discharge the CRT again (see Discharging the CRT, page 12), and t hen reconnect the anode lead to the anode button, making sure the spring hooks catch inside the hole.

If practical, test the monitor and touc hsc reen at the earliest time possible before reassembling the display, as the reassembly of the back case can be tedious. If mistakes have been made, correc tions are easier to make if the covers are still off.

Next, label the monitor with information about the touchscreen installed, along with the model and settings of any internal serial controller.

For example :

Contains -2500S Serial Controller Settings: 9600/8/1/N SmartSet/Binary/Stream Mode

Finally, remove any agency certifications (UL/cUL, FCC, TÜV, CE, etc.) for which you have not resubmitted.

Sealing the Mo nitor

A variety of methods may be used to seal an IntelliTouch system from dust or splashed liquids as required by the application or an industry standard:

1 Use only closed cell polyolefin (Volara) foam available from Elo. 2 Adhere the seal to the lip of the bezel. When the bezel is compressed against

the touchscreen, the Volara material will act as a seal. Make sure the bezel and sealing tape (Volara) do not touch the reflector strips. See Figure 2. 8 on page 31 for proper sealing loc at ion.

Proper Sealing

Figure 2.7

2-30 IntelliTouch/SecureTouch Guide

Proper and Improper Sealing

Improper Sealing

Proper Bezel Mounting

Improper Bezel Mounting

Figure 2.8

Compress the seal evenly around the bezel. If the display is to be used in a

Proper and Improper Bezel Mounting

kiosk with for ced air ventil ation, the air should be filtered a nd fans should be positioned at the intake, creating positive pressure inside the cabinet.

Sealin g Material Se le c tio n

Elo recommends a crosslinked polyolefin closed-cell foam called Volara, manufactured by Voltek. This material is available through Elo or can be purchased from Voltek dire ctly (use 2A, 2E, 4A or 4E weight, black flame retardant ma teri al ).

System E valua t ion

As the IntelliTouch sys tem gain is dynamic, and responds to a changing environment quickly, the application of a seal to the system typically produces no user perceivable effects. The touch should be just as sensitive after integration a nd sealing as before. However, the designer should be aware of the impact of the seal on system perform ance. Elo provides several software tools downloadable from the website that can aid in this assessment. Use these tools to establish basel ine performance prior to the application of the seal, as well as after. If you need more assista nce, please contact Elo Applicatio n Engineering (1-800-557-1458 x6).

2-31

LCD Integration

This section outli nes the procedures for installing touchscreen components that will convert your monitor into a touchmonitor. Details are given on mounting the touchscreen, controller, and connecting cabl es.

Safety Infor mati on

W ARN ING

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 . Therefore, the procedure should only be perfo rmed by a qualif ied person. Read this entire chapter before attempting a touchscreen installation.

Consider purchasing a touchmonitor from Elo if you do not have previous experience working with touc hscreens and disassembling displays. Elo also offers touchscreen installation services in quantity for a variety of displays or can recommend third-party integrators in your area.

2-32 IntelliTouch/SecureTouch Guide

Summ ar y of In st all ati on Ste p s

This section describe s integration of an LCD. There are two types of integration: de sktop LCD or LCD component. If integrating a touchscreen on an LCD desktop, then bez el rede sign may be requi red. See “Design Consi deratio ns for CRTs and LCDs” on page 2-6, for bezel design recommendations.

A typical LCD installation pr ocess consists of the following ste ps:

1 Unpacking the touchscreen 2 Disassembling the monitor 3 Determining touchscreen fit 4 Mounting the touchscreen 5 Installing the controller 6 Power 7 Reassembling the monitor

Unpacking the Touchscreen

Handle the touchscreen with care. Note the transducers in the corners are especially fragile. Although the transducers may be recessed from the edge of the glass, do not handle them unless inspection is necessary. Note the location of the tra nsducers and wirin g. If any of the wires are accidentally broken during handling or installation, or if a wire is disconnected, the touchscreen will not operate. Avoid excessive handling and stress on the touchscreen cable. Elo touchscreens are pre-cleaned, so avoid getting finger prints on the touchscreen by wearing gloves.

Testing the Monitor

The display must be in good working order befo re begi nning the installation of the touchscreen. Inspect the LCD monitor for cosmetic flaws or damage. With a new display, it is suggested that you test the display by running it overnight. Check for acceptable color, brightness, contrast , pic ture stability, and other QC tests.

2-33

Disassembling the LCD Monitor

Note:

The purpose of this document is t o aid i n the touchscreen integ ration of monitors. This document is for reference only, and cannot be assumed to cover all LCD monitor products in det ail. Elo TouchS ystems, Inc. cannot be hel d liable for any personal or property damage incurred through use of this document. As al ways, when in doubt contact the Elo Appli cations Engineering Department for assi stance (1-800-557-1458 x6).

This document describes the basic tasks common to the vast majority of LCD monitor integrations. These instructions assume an audience of trained integration personnel.

Definition of Terms

• MONITOR: The term “monitor” refers only to the monitor, tele vision, or other display that is defined in specific monitor’s integration.

• 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 LCD, and separates 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. The case normally covers the top, sides, back and bottom of the monitor assembly.

• LCD: Liquid Crystal Display. Also referred to as the Panel.

• CONTROLLER: The electronic device that converts touch data into RS-232 or USB information. For the purposes of this document, the controllers referred to are the Elo internal IntelliTouch serial controller 2500S, and USB controller 2500U. See page 79 for part numbers.

2-34 IntelliTouch/SecureTouch Guide

Tools and Equipment

• Phillips screw driver

• Common (flat blade) screw driver

• Diagonal side cutters

• Assortment of sockets

• Hand drill

• Assorted drill bits

•Pliers

• Glass cleane r an d suppl i es

• She et metal screws

• Hot melt glue gun, and glue sticks

•Zip ties

• Razor knife

Required Parts for Serial Connection

• IntelliTouch RS-2 32 controller, part number 351077-000

• IntelliTouch touc hscreen

• Monitor

• Double-sided adhesive tape

• Internal serial out cable. Part number 889507-000

Required Parts for USB Connection

• IntelliTouch USB controller, part number 714259-000

• IntelliTouch touc hscreen

• Monitor

• Double-sided adhesive tape

• USB cable pack. Part number 748578-000

2-35

Optional P arts for Serial C onnect ion

• External serial o ut cabl e

• DC to DC Power converter and cables.

• Controller power cabl e.

• Closed-cell Poly olefin foam with adhesive on one side.

• Service manual for the monito r.

• Internal mounting kit f or serial controllers.

Optional Parts for USB Con nection

• DC to DC Power converter and cables.

• Closed-cell Poly olefin foam with adhesive on one side.

• Service manual for the monito r.

• Internal mounting kit f or controller.

• Controller power cabl e.

Notes on Disassembling the Monitor

Disassemble the displa y on a large, well-lit work surface. Leave space to set aside major display compon ents. Group screws and other hardware in small containers or in specif ic areas on the work surface as you remove them, in relation to the part of the display where you are working. If you complete the installat ion process in one session (which may require several hours for your first efforts), it is unlikely that you will have trouble reassembling the display.

Most display manufactur ers connect the major components with detachable cables that have label ed and keyed con nectors; these cables are of lengths that will usually connect to only one place. Also, screws are identifiable by type and size, and usually will not f it in the wrong pla ce. The most dif ficult pr obl em with missing or wrong hardware or connec tions will be with single ground cables that attach to obscur e ground points on the metal chassis. When in doubt, make notes of the connection points.

2-36 IntelliTouch/SecureTouch Guide

Remov in g th e Rear Ca se

Disassembly usually starts with removal of the back case. For assistance with disassembly, consult your manufacturer's service manual.

To remove the re ar case:

• Carefull y lay the d ispl ay on its face o n the pa d ded work sur fac e an d remo v e the screws that attach the rear case to the bezel or frame.

• Slowly pull the rear case upward.

• Disconnect any cabling that may be attached to the rear case

• While removing the rear case, note the clearance between the inside rear surface of the case and any of the monitor’s circuitry. If there is not enough clearance to move this circuitry about.25 inch (6 mm) toward the rear of the case, you may be unable to successfully install a touchscreen on the display and completely r einstall the back case . Contac t Elo Applic ations Enginee ring (1-800-557-14 58 x6) for possible alternatives.

Removing the LCD

1 Continue disassembling the display until the face of the LCD is completely

exposed. The degree of disassembly required will vary from display to display.

2 The next step will be to remove the LCD from the display’s hous ing. Several

cables may have to be unplugged from the LCD before it can be removed. Typically these cables are:

• The input video connector. A multi-conductor cable that is attached to the

rear of the LCD panel.

• The back-lamp cables. One or two cables connected to the rear of the

panel. These cables origina te from the high voltage inverter.

• Various cables connected to the power switch, pilot light, front panel

controls, etc. Other cables may have to be unplugged from the electronics chassis. The need for thi s m ay not be appare nt until the chassis i s r emoved, as instructed below. As you pull the LCD out of the frame, make sure to watch for other cables that need to be disconnected. After removal, set the LCD face up on a padded, static free work surface.

2-37

Determining Touchscreen Fit

1 Position the LCD so the face is accessible. 2 Next, determine if the touchscreen will fit in the bezel without modif ications

to the bezel. Modifications, if necessary, should be done without seriously compromising the mechanic al integrity of the display. To do this:

• Lay the touchscreen face-down in the bezel, being careful not to damage

the transducer s. If the touchscreen will not fit flush against the lip of the bezel, do not force it. An interference fit betw een t he edge of an

IntelliTouch touc hscreen and some of the plastic ribs found in displ ay bezels can pinch and break the small wires which carry the signals along the edges of the touchs cr een , or even resu l t in fract ure of the glas s aft er reassembly.

It is often necessary to cut these ribs and struts inside the bezel. Cutting does not usually cause difficulties although the stiffness of the bezel may be reduced slightly. Try not to cut into the posts of any attachment screws.

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. This prevents the interference fit problem discussed above and allows for variation in touchscreen mounting position.

3 Check for adequate clearance of the transducers and the cable from the bezel

structure. The preferred orientation of the IntelliTouch touchscreen is with the cable exiting from the right side, when viewed from the front of the display. If the position of the cable causes difficulty, the touchscreen may be rotated 180° on units (that incorporate a seal). Rotation will cause an inversion of the output coordinates, which will be compensated for automatically by Elo dri ver software, but perhaps not by other driver s. The touchscreen must have the reflector stripes on the surface facing the user.

2-38 IntelliTouch/SecureTouch Guide

Mounting the Touchscreen

When preparing the touchs creen for mounti ng to the LCD, major c onsi deration s are:

• Reasonable mechanic al alignment with the display.

• Mounting materials and methods.

• A complete dust seal between the touchsc reen 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.

• Creating enough space betwe en the touchscreen and the bezel to accommo date the touch s cr een and the tr ans duc ers . Adequ at e sp aci ng can normally be accomplish ed by:

1 trimming or milling the inside of the bezel. 2 using spacers to move the LCD ba ck in the chassis. 3 using spacers to move the bezel away from the touchscreen. A

combination of moving t he LCD back with sp ace rs and tr imming the bez el is the usual solut i o n.

• The seal between the touchscreen and the display bezel.

The last three consider at ions listed above should determine the nominal thickness of the spacers to be used.

Many monitors will have sufficient space in the bezel to allow the touchscreen face to re st against the l ip of the bezel, with the lip tou chi ng the active region of the touchscreen. However, the transducers should not be in contact with the bezel. Assuming double-sided tape is used to atta ch the touchscree n to the LCD the final spacing will be determined by the type of seal to be used. See “Sealing” on page 2-41, for an explanation of sealing methods.

Before mounting the touchs creen, clean the face of the display and the back of the touchscreen with household glass cleaner. Be sure to remove all fingerprint s. The space between the touchscreen and the display face must be clean and free of any foreign objects.

Mount the touchscreen as follows:

• Layer the d ouble-side d adhesive tape to a chie ve a tot al thickness of 1/1 6-i nch (2 mm); across the entire top, bottom, and sides on the rear of the touchscreen. In general, the adhesive tape should be set back slig htly f rom the edge of the active area of the touchscre en . When the d ispl ay is reassembled, the mounting tape should not be visible. Make sure that the double-sided adhesive tape butts in the corners to form a dust seal. Do not remove the liner from the exposed side of the adhesive tape yet.

2-39

Figure 2.9

Attaching double-sided adhesive tape to the touchscreen

• Practice aligning the touc hscreen 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 touchs cr een an d the face of the LCD. Avoid al l cont act 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 a ir. Remove the liner from the adhesive tape and align the touchscr een on the di spla y. Now press the touchscreen firmly against the LCD.

• Inspect your result s carefully for alignment, trapped dust or lint, and a good seal between the touchsc reen and LCD. If there is trapped lint, you may be able to remove it without removing the touchscreen by capturing it with a thin wire. Poke the wire through the adhesive tape, and stick the lint to the wire. Pull the lint back into the tape and embed it there.

• If you must remove the touchscreen f rom the LCD, cut the adhesive tape away with a sharp thin blade, such as an X-Acto knife. The touchscreen glass will probably break if you try to pull it off by a corner or an edge. Shave the old adhesive tape from the touc hscreen and LCD with the knife. Adhesive residues can be re moved with isopr opyl alc ohol, whic h will leave streaks and fingerprint smears. Use glass cleaner for the final cleaning pr ior to reapplication of new tape.

2-40 IntelliTouch/SecureTouch Guide

Note:

Sealing

Sealing the Int elliTouc h to uchscreen is not r equir ed for oper ation; however, it i s recommended to increase the resistance to dirt and moisture. Elo recommends using closed-cell polyolefin based foam with an adhesive backing on one sid e. Elo sells sealing foams with varying thickness to accommodate most needs.

Other foams ma y actually reduce the acoustic signal, thus resulting in detrim ental effects.

Install the seal as follows:

• Place the bezel fa ce down on a padded surface, so that you can obta in access to the insid e l ip .

• Cut enough of the sealing foam so that it can be installed in one continuous run.

• Starting from the middle- top; Begin placing the sealing foam, adhesi ve side to the bezel.

• The sealing foam should be flush with the bezel ope ning, and not dipping inward or outward.

• The radius curves in the corners can be aided by slightly nicking the outside of the sealing foam just before the corner.

• Butt the end of the sealing foam tightly against its beginning.

The sealing f oam m ust be pos iti oned s o that it mak es contact with t he touc hscr een wit hin the activ e area. It is not acceptable for the sealing foam to contact the reflect or arrays (See page 30 for details).

Spac ing th e LCD fr om the B ez el

The last part of the touchscreen mounting procedure is to determine the appropriate spa cing of the LCD from the bezel, (with the touc hscr een attached) , and to reinstall the LCD with the required spacers in place. Do not clamp the

touchscreen between the bezel and the LCD without proper spacing as breakage will al most certa inl y occur. Th e nominal t hickne ss of th e touc hscree n

and the one layer of adhesive tape is 3/16- inch (5 mm). If the touchscreen were to be in contact with the bezel, 3/16- inch (5 mm) spacers would be required.

During the spacer selection process, you may have to install the LCD with the touchscreen attached in the bezel several times to obtain proper fit. When spacers for the des ired gap have bee n sel ected , insta ll the L CD. Sel ec t a screw that is long enough to compensate for the spacer thickness (provides at least three full turns into the mounting post threads) but not so long as to penetrate the surface of the bezel. Over -tightening the screws may strip or split the mounting posts.

2-41

Installing the Controller

Internal Serial Controller (2500S)

The mounting holes of the IntelliTouch serial controllers are sized for

0.156-inch (4mm) snap-in sta ndoffs. All Inte ll iTouch touchsc reens ha ve a cable

termination that mates directly with the male header (P3) on the controller. See Appendix B for specific mounting dim ensions and connections.

Figure 2.10

2500S Internal S erial Controller

Follow these steps to inst all an IntelliTouch serial controller:

1 Evaluate the monitor for proper posit ioning of the cont rol ler. Make sure th ere

is sufficient space for cable headers . Also cho ose a locat i on tha t allo w s the cables to be installe d with adequa te slack, and provides for easy access during install ation.

2 If possible, mount the controller directly to the metal chassis using No. 6

sheet metal screws and spacers provide d in the controller mounting kit. If you must mount to a location other than the meta l chassis, or if you intend to use adhesive base snap-in sta ndoffs, you must ground the controller through the use of pin 8 on connector P4 of the controller.

3 Attach the touchscreen cable to connector P3 of the controller, and secure it

with a small amount of glue.

4 Take up the excess cable with zip ties and secure.

Note:

2-42 IntelliTouch/SecureTouch Guide

It is recommended t aht at least one of the control ler’s mounting holes be attached via a screw nut combination to insure hol d.

Internal USB Controller (2500U )

The mounting holes for the 2500U USB controll er are sized for 0.156-inch (4 mm) snap-in standoffs. See Appendix B for specific mounting dimensions and connections.

CAUT ION

Note:

Figure 2.11

2500U USB controller

Follow these steps to inst all the IntelliTouch 2500U USB controller:

1 Evaluate the monitor for proper posit ioning of the cont rol ler. Make sure th ere

is sufficient space for cable headers .

2 Choose a location that allows the cables to be installed with adequate slack

and provides tor easy access during installation.

3 If possible, mount the controller directly to the metal chassis using No. 6

sheet metal screws and spacers provide d in the controller mounting kit. If you do not use the metal chassis, or if you intend to use adhesive base snap-in standoffs, you must ground the controller through the use of pin 8 on connector P4 of the controlle r .

4 Attach the touchscreen cable to connector P3 of the controller and secure

with a small amount of glue.

5 Tak e up excess cable with zip tie s.

It is recommentd that at least one of the controller’s mounting holes be attached via a screw nut combination to insure hol d.

2-43

Power

Various methods can be used to obtain power for the internal USB controller. This section addresse s the two most common methods:

• Parasitic ta p of 5V dc

• 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 circui try. Before attempting this you should cons ult the monitor’s service manual, or the monitor’s manufacture.

Follow these steps to obtain 5Vdc directly from the monitor:

1 Find a suitable 5Vdc power source on t he cir cuitry of the displa y. I nsure that

the source can sustain the addit i ona l load requirements placed on it by the controller. An accepta ble source should be able to supply an addition 100ma with out effecting othe r systems in the monitor.

2 Solder or splice the non-terminated end of the controller power cable

(part number: 889507-000) to the tap loc ation. Be sure to observe the correct polarity. The controller power cable (part number: 889507-000) uses the red conductor for the (+) signal, the black conductor for the (-) signal , and the green conductor for fr ame ground.

3 Attach the terminated end of the controller power cable

(part number: 889507-000) to connector P4 of the IntelliTouch USB controller, and secure with a small amount of glue.

4 Take up the excess cable with zip ties and secure.

2-44 IntelliTouch/SecureTouch Guide

Parasitic Tap of 7-30Vdc (DC to DC converter)

If you cannot find a readily availa ble 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 posit ioning of the DC to DC conve rter. Make

sure there is suffic ient space for cable headers. Also choose a location that allows the cables to be ins tal le d wit h adequ a te slack , and pro vides fo r easy access durin g instal lat i on.

2 Find a suitable 7-30Vdc power source on the circuitry of the display. Insure

that the source can sustain the additional load requirements placed on it by the controller. An acceptable source should be able to supply an addition 100ma with out effecting othe r systems in the monitor.

3 Solder or splice the non-terminated end of the power cable (part number:

950519-000) to the tap location. Be sure to observe the correct polarity. The cable (part number: 950519- 000) uses the orange conductor for the (+) signal, and the black conductor for the (-) signal.

4 Connect the terminated end of power cable (part number: 950519-000) to

connector P603 of the DC to DC converter.

5 Connect the 2 position header of cable 429761-000 to connector P604 of the

DC to DC converter.

2-45

Note:

• 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. A hole for this connector may be furnished in a variety of ways:

• Mounting the connector to an internal chassis member with a hole cut in

the rear case to expose the connector.

• Punching a DB-9 style hole in the exterior of the case, and mounting the

connector directly to the case. (Such DB-9 punches can be obtained from industrial supply vendors).

2 Mount the DB-9 header of the RS-232 output cable (part number: 942741-

000) using one of the above techniques.

If mounting to a non-grounded locatio n, at tach a grounding cable to one of the jackscrews and terminate to ground.

3 Connect the 2x5 header of the RS-232 output cable (part number: 942741-

000) to connector P2 of the IntelliTouch serial controller, and secure with a small amount of glue.

4 Take up the excess cable with zip ties and secure. 5 Adhere the metal plate labeled with the legend, “Touchscr een Interface” to

the case area surrounding the DB-9 connector.

6 Label the monitor to indicate that an IntelliTouch 2500S controller has been

installed insi de the display.

Modifyin g th e Ca se f or USB Output

To modify the case to accommodate the USB output cable (included with the USB cable pack):

1 Evaluate the rear of the case to determine the best position to punc h for the

bulkhead’s hole. This hole may be furnished in a variety of ways:

• Mounting the bulkhead to an internal chassis member with a hole cut in

the rear case to expose the connector.

• Punching a rectangular style hole in the exterior of the case, and mo unting

the bulkhead directly to the case. (Such punches can be obtained from industrial supply vendors).

2-46 IntelliTouch/SecureTouch Guide

Note:

2 Mount the USB bulkhead connector using one of the above techniques.

If mounting to a non-grounded locatio n, at tach 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 bulkhea d.

4 Take up the excess cable with zip ties and secure. 5 Label the monitor to indicate that an IntelliTouch 2500U controller has been

installed insi de the display.

Brush Direction

Figure 2.13

Horizontal escutcheon plate

Re-assembling the Display

Re-assemble the displ ay by completing the disassembly steps in reverse order. Take care to connect everything correctly and completely.

• Various methods can be used to obtain power for the internal RS-232 controller and USB controller. Refer to the Power section of this document, page 44, to determine the method which is best fo r your particular situation.

2-47

2-48 IntelliTouch/SecureTouch Guide

HAPTER

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 Troub leshooting P roces s

The first step in trouble shooting a touchscreen system is to determine whether the problem is related to the display, software, or hardware:

A PPENDIX

ROUBLESHOOTING

UIDE

• Do not confuse display problems with touchscreen problems—the two are unrelated.

• Software problems are det ermined by a basic hardware functionality test. If the hardware transmits touch coordinates correctly, then the problem is probably with the driver or application software.

• Hardware problems may be caused by the touchscreen, controller, cabling, power supply, or by the integration of the touchscreen components in the display. This appendix describes techniques for isolating the problem, including power-on diagnostics, status LED verification, and component swapping.

A-49

Display P r oblems

If you are experiencing display problems (such as no video, no horizontal or vertical synchr onization, raster non-line arities, etc.), remember that the video function of the display an d the Elo touchsc reen installed on the display are separate syste ms. Therefor e, problems with the display should be treated as display pr oblems, no t t ouchsc reen probl ems Di agnostic p rocedures and p ossibl e corrections for displ ay problems should be performed usin g the troublesho oting procedures outline d in your display manual.

The IntelliTou ch touc hscr een is powe re d from i ts cont rolle r. Us ually t he displ ay and touchscreen contr oller have separate power supplies and opera te independently. Thus it is possible for the touchscreen to interact with the computer even if the display is powered off. Internal serial controllers may be powered by a supply that is separate from the display's power supply, but controlled thr ough the displays power switch. In this case, even if display problems exist, the touchscreen system will probably function if the display power switch is on.

Software Troublesh ooting

Before beginning softwa re troubleshooting, verify that the touchscreen hardware is working by running the COMDUMP program for serial controllers (see page 52, Using the COMDUMP Utility). If the touchsc reen is operating, then the problem may be with the driver software, the application software, or a conflict with othe r hardware or software. (The problem may also be due to incorrect touchscreen video alignment, described on page 51, Video Alignment Problems.)

The general technique for tro ubleshooting software proble ms is to identify at what layer of software and associated hardware the problem exists. For example, if you have a Windows application, there are several layers of software and drivers. The problem could be with your application, Windows, MonitorMouse for Windows, MonitorMouse for DOS, the ELODEV driver, a conflict with another device, or the touchscreen har dwa re. The best approach to software troubleshooting is to remove the layers of software one by one, testing each layer until the pro ble m is iso lat ed . Al so try remov i ng oth er hard w ar e and software that may be conflicting with the touchscreen hardware and driver software.

A-50 IntelliTouch/SecureTouch Guide

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 Use r's Gui de,

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.

Video Alignment Problems

If the touchscreen is responding and the data is linear, but a touch does not activate the appropriate zone in the application, try video alignment. Use ELOCALIB under DOS or the Touchscreen Control Panel with all versions of MonitorMouse. Improper video alignment may be indicated when the cursor does not move at the same pace as a sliding finger , or when it moves in the opposite direct ion. The cursor should always move in the same axis as your finger.

If you have a DOS application, erase any ELOGRAPH.CAL files and complete video alignment in the video mode used by your application. For example, you may have a VGA monitor with your application runn ing in text mode, so complete video alignment in text mode rather than graphics mode.

Also see Calibration Problems in the DOS and Windows Driver Guide for additional infor mation.

Hardware T roubleshooting

Troubleshooting the touchscreen system hardware may require analysis of the touchscreen, controller, cables, power suppl y, a nd the integration process. The best place to start is with the controller.

Use the controller power-on diagnostics which are displayed when the Elo driver softwar e is load ed t o chec k for sp ecifi c faul t s (see Diagnostic Codes, page 59). If they are accessible, the diagnostic LED’s on serial and MX controllers may identify a problem (see Diagnostic LED’s, page 58).

Also, check whether the controller is transmitting any touch data. Use the COMDUMP program for ser ial contr oll ers. The 2310B op erates at 9600 baud, 8 data bits, 1 stop bit, and no parit y, ( see page 75 for controller jumper settings). You may encounter one of the following symptom s:

• No touch data . When no touch data is reported, the problem may be the touchscreen, controller, or cabling. If the controller power-on diagnostics or diagnostic LED’s do not identify the problem, substitute individual system components if they are ava ila ble. Refer to the remainder of this appen dix for information on trouble shooting each system component.

A-51

• 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 no ise in the syst em. Gene ration of t ouch data when the t ouch screen is not touched is most likely caus ed by excessive system noise. See the sections and, page and, respe ctively. 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. Contact Elo Application Engineering, 1-800-557-1458 ext. 6, for more information.

• Linearity. As the IntelliTouch system is inherently stable and drift-free, apparent linearity problems are usually due to video alignment errors or display drift. See Video Alignment Problems, page 51.

The remainder of this appendi x deals with component-level troubl esh ooting of controllers , powe r supplies, the touchscreen, and cables.

Serial C on troller

The 2310B operates at 9600 ba ud, 8 data bit s, 1 st op bit, and no par ity. See page 75 for controller jumper settings.

The 2500S operates at 9600 baud.

Using the COMDUMP Utility

COMDUMP is a DOS utility included with most Elo driver softwa re and available at www.elotouch.com. Use COMDUMP to verify basic controller functionality and to determine whether or not data is reaching the serial por t. COMDUMP can be run without a touchscreen driver load ed. Type”COMDUMP <n>” where <n> is the number of the COM port. Detailed instructions can be found on Elo’s Web Tech site, www.elotouch.com/support.

If you are not running under DOS, boot your PC from a DOS diskette before running COMDUMP. If you cannot run DOS (use an ASCII terminal or a communications program in local mode to get a similar type of analysis provided by COMDUMP). Another option is to temporarily connect the touchscreen to a PC with DOS and run COMDUMP.

If the hardware is functi oning pr operly, untranslated (raw) coordinates will be returned at a constant rate only when the touchscreen is touched. If no data is transmitted on touch, or if data is transmitted when the touchscreen is not touched (either continuously or intermittently), you have a hardware problem.

If the LED is acce ssibl e, and i ndica tes that da ta is being tr ansmitte d, c onfir m the communication paramet ers, then try another serial port, possibly on another computer. Also see RS-232 Connections, page 54.

A-52 IntelliTouch/SecureTouch Guide

2500S Contro ller Pr otocol

The ten-byte binary data format displayed in hex by COMDUMP for correct operation with Elo driver software is as follows:

Byte De s crip tion

1 ASCI I 'U' (55h) 2 ASCII 'T' (54h) 3 Status Byte 4XLow 5 XHigh 6YLow 7 YHigh 8ZLow 9 ZHigh (defaults to 0) 10 Checksum

A-4002 Controller Protocol

If the controller is jum pered for A-4002 emulation mode, the output will be the six-byte binary format as follows:

Byte MSB LSB

111X11X10X9X8X7X6 210X5X4X3X2X1X0 301Y11Y10Y9Y8Y7Y6 400Y5Y4Y3Y2Y1Y0 5000000000 60000Z3Z2Z1Z0

In this mode, the first four bytes in each packet will be decreasing, followed by a zero byte, and a byte from 00 to 0F (hex). The Z value (byte 6) will be 00 when you lift your finger.

A-53

RS-232 Connections

Review cable connect ions and swi tch se ttings. If you have use d your own cables or adapters for connection to the serial port, check pinouts. Verify that the data transfer rate (bau d rat e) o f the computer's seria l port is the sam e as se le cted 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. It is configured so a ribbon cabl e and commonly avai lable insulation displac ement connectors (IDCs) may be used. Pin posi tions and signals are given below. See page 60 for DB9 and DB25 connector pin positions.

7531

10 8 6 4 2

Figure A.1

P2 Pins DB25 DB9 Host Signal Source

1 8 1 DCD (N/C ) Controller 2 6 6 DSR Controller 3 3 2 RXD Controller 447RTS Host 5 2 3 TXD Host 6 5 8 CTS Controller 7204DTR Host 8 22 9 RI (N/C) N/C 975GND Common 10 Key

Pin positions for the serial port connect or

Table A.1

Serial port controller signals

The controller only requires a 2-wire connection, controller Transmit Data (P2 pin 3) and Signal Ground (P2 pin 9). For two-way communications, the controller Receive Data (P2 pin 5) should also be connected to the host Transmit Data pin.

A-54 IntelliTouch/SecureTouch Guide

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 . Dat a Terminal Ready (DTR) and Request to Send (RTS) can also be connected for full ha rdwar e handshaking.

Elo driver software typically requires two-way communication and all four handshaking lines.

If accessib le, the controller's diagnostic LED can ve rify whether RS-232 dat a is being transmitted.

Alternative ly, a breakout box will tell you if there is any activity on the data line. It is possible that the port you are using on the host computer is meant to work with an RS-232 DTE device. To check this, inst all a null modem cable between the controll er and the host computer's serial port. A null modem cable converts a DCE device into a DTE device by swapping pins 2 and 3 and the handshaking lines.

Some serial ports require jumpers for the handshaking lines on the cable connector at the computer end. The jumper combina tions that may be required to make an RS-232 por t work ar e beyond the scope of this m anual. Consult your computer manual for more information.

If a breakout box is not available, you c an measure the DC voltage at the data output of the contro ller (pin 2 of the DB-9). It should m easure betwee n 8 and 10 Vdc when the touchscreen is not touche d, a nd drop seve ral volts (towards 0) during a touch, depending on the data format and the baud rate.

If proper RS-232 signal voltage is not present, the controller may not have power applied.

P ower Connections

Check for proper voltage (+5 Vdc) at the power connector P4 pin 1 (+) and pin 4 (-) on the controller (se e, page) . I f the LED is functioning (see page Diagnostic LED’s), the power suppl y is probably okay. To access this connector on the external seria l controller, disconnect the power, the n remove the cover. Reconnect the power cable and turn t he unit on. There are no e xposed electrica l connections in the controller that would be considered dangerous. Power is applied to the controller through P4.

If no power is present, measure the voltage at the power source, either a source from the display elect ronics, a DC-to-DC converter, or an AC power supply.

A-55

Touchscreen and Touchscreen Cab les

If the touchscreen and its attached cable are easily accessible, the touchscreen can be physically inspe cted 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 transduc ers should be obvious, but broken or cracked transducers may be diff icu lt to see. Transducer breaks, regardless of the cause, mostly occur at the edge of the solder connec tion. A break can generally be detected by the cont roller power-on diagnost ics. See Diagnostic Codes, page. 59

Figure A.2

Note:

A-56 IntelliTouch/SecureTouch Guide

You cannot repair a broken transduce r in the field . Return any touchscr een with a brok en transducer to Elo for repair or replacement.

Transducer and Wedge Assembly

IC1 Cable

The IC1 cable is used insid e the disp lay to connect to a n exte rnal EC2 extens ion 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:

Table A.2

2 4

Figure A.3

1 3

Pinouts for the IC1 Cable

2x6 Male Head er DB9 Male Function

1 Shell Overall Shield 31Y+Receive 5 2 Y-Receive 7 3 Shield 94X+Receive 11 5 X-Receive 46Y Transmit 6 7 Y Ground 8 8 X Ground 10 9 X Transmit

Pinouts for IC1 Cable and header

See page 60 for DB9 and DB25 connector pin positions.

EC2 Cable

This cable connects the back of a touch monit or to an external controller. It is a straight through c able, and all nine pins are used. Check this cable with an ohmmeter.

The interna l const ruct ion of the EC 2 cable is s pecif ic t o t he Inte lli Touch sys tem, and other common computer data cables should not be substituted.

A-57

Diagnostic LED's

Depending on where the control ler is installed, the LED's may or may not be visible.

Inte lliTouc h Seria l 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.

During normal operat ion, t he LED also ind icates contr oller/host comm unication is in progress. When the touchscreen is touched, the LED should light continuously, then return to the normal flash rate. If the host does not remove the packet from the controller, the LED will stay lit.

The LED will also stay lit without a touch if the touc hsc reen or cabling is disconnected or not functioning.

If the LED flashes about two times per second, a warning error condition is indicated, such as impr ope r co mm u nic at ion fro m the hos t. Su sp ect an inv ali d command se que n ce from the host.

A-58 IntelliTouch/SecureTouch Guide

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 indicat es a fail ure. Diagnostic code s are computed by summing the value for each bit position using hexadecimal arithmetic.

IntelliTouch Serial Cont r ol ler ( 2500S)

These controller s have a two-byte diagnostic code displayed in the form AABB. The AA byte is defined below. The BB byte is the same as the 4035 controller, defined above in Table A.1.

AA Bit Value (hex) Description

7 80 Touch microprocessor test incomplete 6 40 Reserved 5 20 Touch microprocessor test failed—touchscreen may not be

connected 4 10 Nonvolatile RAM checksu m test failur e 3 08 RAM read /write test failure 2 04 ROM checksum test failure 1 02 Micro p rocessor logic/register test failure 0 01 Firmw ar e /hardwar e co m p atibilit y te st fai l u re

Table A.3

The IntelliTouch Serial Controller (2500S) bit position relating to each byte.

A-59

DB9 and DB25 Connector Pin Positions

The following figure is use ful when locating pin positions on DB9 and DB25 connectors.

Figure A.4

A-60 IntelliTouch/SecureTouch Guide

DB9 and DB25 Connector Pin Pos itions

A PPENDIX

HAPTER

PECIFICATIONS

The following specific ations are subject to change without notice. Many of the IntelliTouch specif ic ations are controller- dependent. Refer to the

IntelliTouch Touchscreen Products brochure or the Technical Reference Manual for your controll er for the se additional specifications.

IntelliTouch pr oducts 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.

B-61

IntelliTouch Touchscree ns

Mechanical

Construct ion

Dimensions

Cable and Connector

Positional Accuracy

Resolution Touch Activation

Force Surface

Durability Expected Life

Performance

Optical

Light Transmission

Visual Resolution

Gloss

Electrical

Environmental

Temperature

Operating Relative Humidity

Glass panel with transducers attached to front surfa ce of the glass. Glass panel thickness nominall y 0.115-inc h (3 mm). Corner-mounted transducers add maximum of 0.150-inch (4 mm). Beveled flat screens have trans ducers attached to a beveled edge of the gla ss.

The follo win g physi cal di mens ions o f t he t ou chscr een are sp ecifi ed for each m o del in th e IntelliTo uch Touchs cr een Pr oduc ts br oc hure o r the appr opr iate Elo Sp eci fic at ion Con tr ol Drawing. Drawings can be found on Elo’s web site, www.elotouch.com

Horizontal and Vertical physical size Horizontal and Vertical border re gion size Horizontal and Vertical touch active area size Radius of curvature information Cable exit location, length, and connector type Cable typically exits from the right side, terminating in a 2x6 female, 0.025-inch (0.635

mm) square po st receptacle with 0.100-inch (2.54 mm) centers. Standard deviation of error is less th an 0.080 in. (2 mm).

4096 x 4096 touch points (approximately 400 touch points per linear inch) Typically 2 to 3 ounces (55 to 85 grams).

Surface durability i s that of glass, Mohs’ hardness rating of 7.

No known wear-out mechanism, as there ar e no layers, coa tings, or moving parts. The IntelliTouch technology has been operational ly tested to more than 50 million touches in one location without failure, using a stylus similar to a finger.

90% per ASTM D1003-92

Clear surface: Excellent with no noticeable degrad ation. Anti-g la re surfac e : 6: 1 minimum. All measure ments made using U SA F 1951 Resolution Chart, under 30X magnifica tion

with test unit located approximately 1.5-inch (38 mm) from surface of resolution chart. Clear surface: N/A Antiglare: 75 ± 15 gl oss units pe r ASTM D2457- 90 using a 60° gloss mete r. For flat s, 85

± 15 gloss unit s per ASTM D2457-90. All touc h sc reen drive sig na ls are devel op ed by the inte rf a cing contro ll er. Refer to th e

Technical Reference Manual for your controller or to the Intel liTouch Touchscreen Products brochure for these specifications.

Operating: -20°C to 50°C. Storage: -40°C to 71°C. 40°C at 90% Rh, non-condensin g.

B-62 IntelliTouch/SecureTouch Guide

Altitude

Chemical Resistance

Electrostatic Protection

Agency Approvals

UL Compliance Fire Retardation FCC Compliance

Operatin g: 10,000 ft (3, 048 m). Storage/transport: 50,000 ft (15,240 m). The touchac tive area of the touchscreen is resistant to all chemicals that do not af fect

glass, such as: Acetone Toluene Methyl ethyl ketone Isopropy l alcohol Methyl alcohol Ethyl acetate Ammonia-b ased glass cleaners Gasoline Kerosene Vinegar

When tested per IEC 801-2 (150 pF and 150 Ω), the touchscreen shall withstand 20 air discharges of 15 kV, distr ibuted randomly across t he active area of the touchscreen.

IntelliTouch touchscreens are UL-Recognized Components. UL file no. E162681 Meets the requirements of UL94HB. Systems incorporating Elo touchscreens, controllers and cables have been approved to

FCC Class "B" compliance.

B-63

IntelliTouch 2500U US B Cont roller

Electrical

Supply Vol tage and Current

Interface

Operating Modes

Touch Resolution Conversion Time Reliability

Environmental

Temperature

Humidity

Operating Altitude Shock and V ibration ESD Flammability

Physical Characteristic s

Construction Dimension

Connectors and Pin Definitions

USB Output Connector

+5 Vdc, nominal (+4.75 to +5.25 Vdc). 50 mA, typica l at +5 Vdc. Avera ge power dissipation is 0.25 W, typical. Supply must be capable of sourcing 100 mA, minimum. Total noise and ripple re quirement must be less than 100mV (p-p) for frequencies

below 1MHz, and less than 50mV (p-p) for frequencie s above 1MHz. USB High Speed

Plug and play com patible IntelliTouch SmartSet protocol.

Initial/Stream / Un touch/ Z-a xi s Ena b le Mo d es . Approximately 4096x4096, size indep endent, 255 le vels of Z (press ure). Approximately 10.4 ms per coordinate set. MTBF greater than 345,000 hours per MIL-HDBK-217-F2 using the parts st ress

calculation method

for the ground benign environment with an ambient

temperatur e of 25°C

Operating: 0°C to 65°C Storage: -25°C το 85°C Operating: 10% to 90% RH, non-condensing. Storage: Same. 10,000 feet. Three axis sine wave, 50Hz to 2kHz, 1G, 2 minutes/Octave with dwell on resonance. Per EN 6100-4-2 1995: Level 4. Contact discharge 8kV, air discharge 15kV The printed circuit board substrat e is rated 94V0. All plastic components, such as

head er s an d conne ct or, are also r at e d 94V0.

Four-layer surface- m ount design wit h internal gr ound plane for EMI suppression. Total Width: 2.36 inches (59.94 mm), inclu ding connectors Total Length: 3.51 inches (89.03 mm), incl uding connector Total height: 0.61 inches (15.44 mm) All mounti ng holes are pla ted through-holes for chassis ground connection . Refer to

the drawings at the end of th is document. The connector configuration permits the controller to be placed in-line between the

touchscreen and a USB hub or host attachment. The USB connector, P2, is a USB Ser ies “B” receptacle as specif ied in sect ion 6.5 of

the USB speci fication, version 1.1. The pi ns are numbered as shown on page Table B.1 on page 66.

B-64 IntelliTouch/SecureTouch Guide

Touchscreen Connector

Power Connector, P4

The touchscreen connector, P3, is a dual row by six position header with 0.025 inch square pins spaced on 0.100 centers. P3 m ates with the Berg Mini-Latch receptacle on the IntelliTouch® touchscreen cable. The pins are num bered as shown in Figure B.2 on page 66. The withdrawal force exceeds 3.9 lbs.

The power connector, P4, is a 2 row by five-position header with 0.025-inch pins on

0.100 centers. The heade r is compatible w ith insulation displacement cable (IDC) connecto rs such as Berg series 71600, ser ies 71602, ser ies 66900, and series 66902, Molex styl e 40312, Amp se ries 746285 and series 746288 receptacles. The header is also compatible with crimp termination, discrete wire receptacles and housings including Berg Mini-Lat ch housings and Mini-PV receptacles, Molex series 70450 connectors, and the Amp AMPMODU Mod. IV connector family. Pin numbering schemes for discret e w ire connectors differ between manufacturers.

Refer only to Fi gur e B.3 on page 66 for pin numbe r lo cati ons . Signa l co nnec tion s are shown on page Table B.3 on page 67.

B-65

D-

VBUS

Table B.1

cable-mounted

plug

Figure B.1

GND

D+

board-mounted

receptacle

P2, USB board-mounted header and cable-mounted plug.

USB connector pin numbers and signal names

P2 pin numb er Signal name Standard wire color

1VBUSRED 2D-WHITE 3 D+ GREEN 4 GND BLACK shell shield drain wire

Board mounted

header

Cable applied

plug

Figure B.2

Pin diagram for touchs creen connector, P3, as viewed from conne ctor mating surfaces.

Board mounted

header

Figure B.3

B-66 IntelliTouch/SecureTouch Guide

Power connector board-m ounted header and cable mounted-plug.

Cable applied

plug

Table B.2

IntelliTouch touchscreen connector pin numbers and signal descriptions

Signal name P3 pin Signal functio n

Chassis 1 frame ground for

cable sh ie ld none 2 connector key Y rcv + 3 Y xmt + 4 Y rcv - 5 Y xmt - 6 analog ground analog gnd 7 analog ground X xmt - 8 analog ground X rcv - 9 X xmt + 10 X rcv + 11 none 12 connec tor key

Table B.3

Power connector, P4 pins and signal descriptions

Signal name P4 pin Signal function

+Regulated Pwr 1 +5 volts DC +/- 5% Pwr Com 2 Supply voltage common reserv ed 3 no connect ion allowed Pwr Com 4 Supply voltage common n/c 5 n/c 6 key location n/c 7 Frame groun d 8 n/c 9 reserv ed 10 no connect ion allowed

B-67

LED Diagnostic Ch aracteristics

A green LED (D1) indicates control ler status as follows:

LED Blink Rate Function

Once per second Normal condition, untouched state On continuo usly Touched st ate Twice per sec ond Error detected

A second LED (D6) indicates USB status as foll ows:

LED State Function

OFF Controller is not enumerated on U SB ON Controller is enumerated on USB, but there is no data transfer Blinking USB data transfers between controller and host are occurring

Agency Approvals

• Elo controllers are “CNR/USR” UL Recognized Components for USA and Canada, Category NWGQ2, Informat ion Technology Equipment Including Business Equipment.

• Elo contro ller s are TUV Bauart certified as com pon e nts.

• Elo controllers have been tested for compliance with FCC Part 15 Class B limits

• Depending on the appl ication, it may be necessary to pay special attention to system grounding and shielding, and it may be necessary to apply ferrite suppressor beads.

B-68 IntelliTouch/SecureTouch Guide

2500U USB Controller Drawings

Figure B.4

Figure B.5

2500U USB Controller, top view

2500U USB Controller, thru-hole locations

B-69

Figure B.6

2500U USB Controller, bottom-view

Figure B.7

Note:

B-70 IntelliTouch/SecureTouch Guide

Side view values represent typical dimensions.

2500U USB Controller, side view

IntelliTouch 2500S Se rial Contr oller

Electrical

Supply Voltage and Current

Interface

Baud Rate Operati ng Mo des

Touch Resolution Conversion Time Relia bility

Environments

Temperature

Humidity

Operating A ltitude Shock and Vibration

ESD Flammability

Physical Char acte ris tics

Construction

Dimensions

+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 frequenc ies above 1 MHz.

EIA 232E (Serial RS-232), DCE configuration. 8 Data Bits, 1 Stop Bit, No Parity, Ful l Duplex.

Hardware handshaking: RTS/CTS DSR is pulled HIG H (> +3V) by the 2500S w hen connected and powered. DTR

is ignored 9600 (default) and 19200 Full IntelliTouch SmartSet or E281A-4002 protocols, jumper sele ctable. Initial/ Stream/ Untouch/ Z-axis Enabl e Modes. 4096x4096, size indepen d ent, 255 levels of Z (pressure). Approximately 10.4 ms per coordinate report. MTBF greater than 300,000 hours per MIL-HDBK-217-F2 (using the parts

stress calculatio n m ethod for ground benign envi ronment with an am bient temperat ure of 25°C).

Operating:0°C to 65°C. Storage:-25°C to 85°C. Operating:10% to 90% RH, non-condensing. Storage:10% to 90% RH, non-condensing. 10,000 feet. Three ax is since w av e , 50 Hz to 2kH z , 1 G , 2 m in u tes/Oct av e wi th dw ell on

resonances. Per EN 6100-4-2 1995: Level 4. Con tact discharge 8kV, air disc harge 15kV. The printed c ir cuit boar d subs tr ate is ra ted 94V 0. Al l pl asti c c ompon ents, suc h a

headers and connectors, are also r ated 94V0.

Four-layer surface- m ount design wit h internal ground plane for EMI suppression.

Total Width: 2.36 inches (59.94 mm), inclu ding connectors Total Length: 3.30 inches (83.82 mm) Total height: 0.40 inches (10.16 mm) All mounti ng holes are plated through for chassis ground connection. Refer to

the drawings at the end of this document.

B-71

Connectors and Pin Definitions

Serial connector, P2, and signal des criptions

Touchscreen connector, P3, and signal descriptions

Power connector, P4

The connector configur ation permit s the control ler to be placed in-line betw een the touchscreen and serial I/O attachments.

The serial I/O connector , P2, is a dual row by five position header with 0.0 25 inch pins on 0.100 centers. The header is compatible with insulation displacem ent cable (I D C ) connectors such as Berg ser ies 71600, ser ies 71602, series 66900, and serie s 66902, Molex style 40312, Amp series 746285 and series 746288 receptacles. The he ader is also compatible with crimp termina tion, discrete wire receptacles and housings incl uding Berg Mini-Latch housings and Mini-PV receptacles, Molex series 70450 connectors, and the Amp AMPMODU Mod. IV connector family. Pin numbering schemes for discrete w ire conn ector s di ffer bet wee n manu fac ture rs. Ref er only t o Fig ure B.1 on page 66 for pi n number locations. Wh en the mating IDC receptacle is cabled to an IDC DB-9 connector, th e interface assumes a DCE confi guration as described in ANSI/EIA/TIA 232-E.

The touchscreen connector, P3, is a dual row by six position header with 0.025 inch square pins spaced on 0. 100 centers. P3 m ates with the Ber g Mini-Latch receptacle on the In telliTouch® touchscreen cable. The pins are numbered as shown in Figu reB.2 on pa ge66. The withdrawal for ce exceeds 3.9 lbs.

The power connector, P4, is a dual ro w by five-posi tion header with 0.025-inch pins on 0.1 00 centers. The header is com patible with insulation disp lacement cable (ID C ) connectors such as Berg series 71600, ser ies 71602, series 66900, and series 66902, Molex style 40312, Amp series 746285 and series 746288 receptacles. The header is also compatible with crimp termination, discrete wire receptacles and housings including Berg Mini-Latch housings and Mini-PV receptacl es, Molex series 70450 connectors, and the Amp AMPMODU Mod. IV connector f am ily. Pin numbering schemes for di screte wire connectors differ between manufacture rs.

Refer only to Figure B.3 on page 66 for pin number locations. Signal connections are shown in Table B.4 on page 73.

Board mounted

header

Figure B.8

Pin diagram for seri al connector, P2, as viewed from conne ctor mating surfaces.

B-72 IntelliTouch/SecureTouch Guide

Cable applied

plug

Table B.4

Serial Connector, P2, signal names and functions

Signal Name DB-9 P2 pin Sourced by Signal Function

-DCD 1 1 ctrl “carrier detect”, ha n ds h ak e=’0’ wh en co ntroller po w er

-DSR 6 2 ctrl “data set ready” , handshake=’0’ when controller power

RXD 2 3 ctrl serial data from contr oller to host

-RTS 7 4 host “ready to send”, handshake=’0’ when controller may

TXD 3 5 host serial data from host to controller

-CTS 8 6 ctrl used as “ready to receive”, handshake=’0’ when host

-DTR 4 7 host ignored RI 9 8 n/u not used SG 5 9 com signal ground n/u n/c 10 n/u connector key

send

may send

Signal electrical characteristics are given in the following table. These specifications comply with ANSI/EIA/TIA 232-E.

Table B.5

Serial signal electrical characteristics

Parameter Value Applicable Signals

Minimum ON state input voltage Minimum OFF state input voltage

+3 volts TxD, RTS , DTR 2.1.3

-3 volts TxD, RTS, DTR 2.1.3

EIA-232 subsec.

DC Load Resistance, receiver 5 k_ ± 2 k_ TxD, DTR 2.1.4 DC Load Resistance, RTS 1.75 k_ ± 500 _ RTS 2.1.4 Source Imped ance (Power Off) > 300 _ DSR, DCD,CTS, RxD 2.1.5 Power- o ff condit ion interpretation ON cond ition RTS, D TR 2.1.5

Output Voltage, Open Circuit 25 volts, max. Outpu t V ol ta g e in to test load

>5 volts; <15 volts

RxD, DSR, DCD, CTS 2.1.6 RxD, DSR, DCD, CTS 2.1.6

Short Circuit Curre nt <100 mA RxD, DSR, DCD, CTS 2.1.6 Transition Characteristics per EIA-232-E RxD, DSR, DCD, CTS 2.1.7

1. Signals defined in Tabl e 1. Serial Connector, P2, sig nal names and functi ons

2. Measured with respect to circuit SG, Signal Ground.

3. Absolute magnitude.

4. Output voltage measured over the entire range of test load from 3000 ohms t o 7000 ohms.

B-73

Table B.6

Figure B.9

Board mounted

header

Pin diagram for touchs creen connector, P3, as viewed from conne ctor

Cable applied

plug

mating surfaces.

Touchscreen connector, P3, pins and signal names

Signal name P3 pin Signal function

Chassis 1 frame ground for cable shield none 2 connector key Y rcv + 3 Y xmt + 4 Y rcv - 5 Y xmt - 6 analo g gr ound analog gnd 7 analog ground X xmt - 8 analo g gr ound X rcv - 9 X xmt + 10 X rcv + 11 none 12 connector key

Figure B.10

B-74 IntelliTouch/SecureTouch Guide

Board mounted

header

Cable applied

plug

Pin diagram for power connector, P4, as viewed from connector mating surfaces

Table B.7

Power connector, P4, pins and signal names

Signal name P4 pin Signal function

+Reg ulated Pw r 1 +5 vo lts DC +/- 5% Pwr Com 2 Supply voltage common reserve d 3 no connection al lowed Pwr Com 4 Supply voltage common LED Remote n/c 6 key location n/c 7 Frame ground 8

-Reset 9 Open = normal operation

reserve d 10 no connection allow ed

1. Source impedance is 500 ohms to Vcc. Current drive availab le for typical LE D is 6mA .

short to Pwr com = hardware reset.

Ju mper Se t tings

Table B.8

Jumper Locations and function if installed

Jumper Function

J1 Set NVRAM to defaults on power

J2 Emulation Mode = E281A-4002

The 2500S is shipped with a single jumper fitted to not enable either J1 or J2. Consult the drawings later in this document for the position of the jumpers.

LED Diagnostic Ch aracteristics

A green LED indica tes controll er status as follows:

LED Blink Rate Function

Once per second Normal condition, untouched state On continuou sly Touched state Twice per sec ond Error detected

B-75

Agency Approvals

• Elo controllers are “CNR/USR” UL Recognized Components for USA and Canada, Category NWGQ2, Informat ion Technology Equipment Including Business Equipment.

• Elo contro ller s are TUV Bauart certified as com pon e nts.

• Elo controllers have been tested for compliance with FCC Part 15 Class B limits

Depending on the applicat ion, it may be necessary to pay special attention to system grounding and shielding, and it may be necessary to apply ferrite suppressor beads.

B-76 IntelliTouch/SecureTouch Guide

Drawings

Figure B.11

Figure B.12

2500S Serial Controller, top view

2500S Serial Controller, bottom vie w

B-77

Figure B.13

2500S Serial Controller

Figure B.14

Note:

B-78 IntelliTouch/SecureTouch Guide

Side view values represent typical dimensions.

2500S Serial Controller, side view

A PPENDIX

HAPTER

ART

Part Number Description

Controller and Cable Kits

714259- 000 2500U USB Controller for surface wav e 351077-000 2500S RS-232 Serial Controller for surface wave 498363- 000 PC-Bus Controller Card, half sl ot for surfa ce w ave 750345- 000 Serial Cable Pack for surface wave touchscreens 748578-000 USB Cable Pack for surface wave 451043- 000 72 in. DB9M to DB9F. Surf ace wave touchscreen cable for external

contro llers. Goes from back of monitor to contr oller. 304749- 000 2310 MX Tabletop Controller for surface wave 835253-000 2310MX Tabletop Cable Pack for surface wave 538635- 000 2310 European Tabletop Cable Pack for surface wave 694469- 000 2310MX Macintosh Tabletop Cable Pack for surface wave 298361- 000 2310MX Interna l Pow er Mount Cable Pack for surf ace wave 099369-000 2310MX Keyboard Power Tap Cable Pack for surface wave

IntelliTouch® Accessories

934201- 000 Internal mounting kit for seri al control ler. Inc ludes mounting hardware to

install an internal serial controller. 580979- 000 Power Supply, U.S. , 120 Vac in, +5 Vdc out. Wall mount power option

for extern al MX seria l co n tr ol l e r. 396203- 000 Power supply, Interna tional, to 2310MX adapter. E281-2310MX adap ter

for International power supply. 742067- 000 Power supply, 100-240 Vac, 47-63 H z in, +5 Vdc output. For tapping

monitor AC power for internal 2310B, 2500S and 2500U controllers.

UMBERS

C-79

Part Number Description

466907- 000 Power Supply, U.S., Wa ll mount , 90 -130 Va c, 60 Hz. in; +5, -12, + 12 Vdc

out (also needs 323227-000 or 276875-000 power cord). Provides power

to the fo llowing obsol ete controllers: 2300 serial in enclosure, 4002 seria 644845- 000 Power Supply, Int ernational. Free standing, 115-230 Vac, 50/60 Hz. in;

+5, -12, +12 Vd c out (als o ne eds 323 227 -00 0 or 276875- 000 power co rd).

Provides power to the following ob solete cont rollers: 2300 serial in

enclosure, 4002 seria l enclosure , and Appl 655465- 000 Power Converter, DC to DC, + 8 to 30Vdc in, +5V regulated DC out. For

429761- 000 Power cable, low volta ge t wiste d pa ir for 231 0B, 2500S or 25 00U. 9 inch,

889507- 000 Power cable, low voltage twisted pair for 2310B, 2500S and 2500U. 18

816821- 000 Power cable, low voltage twis ted pai r for E281- 2310 MX, 18 in ch, 1x3F t o

323227- 000 Power Cord - Europe. For use with a power supply (pcn 004100-215)

276875- 000 Power Cord - United Kingdom. For use with a power supply (pcn

tapping m onitor DC power for internal 2310B, 2500S or 2500U

controllers.

2X5F t o 1X2F, 9M DC /D C

inch, 2x5F to flying leads.

flying leads (non-s tandard)

and/or monitors in Europe.

004100- 215) and/or moni tors in UK.

Cables

793054- 000 USB connector cabl e, 18 inch length, to connect mon itor to host comp uter 775252- 000 USB connector cabl e, 72 inch length, to connect mon itor to host comp uter 451043-000 Touchscreen cable for external controller, 72 in. DB9M to DB9F, goes

from back of monitor to controller 811847-000 Touchscreen cable for external controller, 108 in. DB9M to DB9F, goes

from back of monitor to controller 075795- 000 Extension cable from con troller, int ernal flat 8 in., 2x6M to D B9M, goes

from controller to back of monitor. 621717- 000 Extension cable from controller, 48 in., 2x6 to DB9F, goes fr om

touchsc re e n co n tr o ller to DB9F 304477- 000 Extension cabl e from touchscreen cable, 48in., 2x6M to DB9M, goes

from touchscreen connector to back of monitor. 942741-000 Serial output cable, internal, ribbon 30 in., 2x5F to DB9F, goes from

contro ller to back of monitor. 454173- 000 Serial output cable, external, 72 in. DB9M to DB 9F. Goes from back of

459635- 000 Ground lead with ri ng terminals , 17 in., Used to connect serial controller

175175- 000 Output cable for E281-2303. 72 in. 4-pin male mini-DIN to 4-pin male

084037- 000 Macintosh serial cable for tou chmon itor s wit h int ernal ser ial co ntrol le rs to

980773- 000 Standard DIN keyboard power tap ca ble. E281-2310MX keyboard power

monitor (with internal controller) to COM port.

or DB9 shell at back of displ ay to chassis gr ound.

mini-DIN.Goes from 002862-K1 or 002860-K1 to Macintosh ADB port.

interface to Macintosh. DB9M to 8-pin mini-DIN male for Macintosh.

tap cable.

C-80 IntelliTouch/SecureTouch Guide

Part Number Description

388923-000 PS/2 Mini DIN keyboard power tap cable. E281-2310MX keyboard

power t a p ca b l e . 419381- 000 Touchscreen cable extension, 28" length 868829- 000 Touchscreen cable extension, 7" length

Adapters and Mounting Plates

539325-000 2 in. DB9M to DB25F. Converts DB9F to DB25F for use with DB25

061369- 000 2500S Locking plat e, for use when locking cables to 2500S controller 882670-000 2500S Adapter plate, for use when installing a 2500S controller in 2310B

serial por t.

mounting holes

Sealing Foam and Adhesives

636773- 000 1/8" x 1/4" x 25'. Seal ing foam, IntelliTouch closed-cell polyolefin foam,

black without adhesive. 839777- 000 1/8" x 1/4" x 75'. Seal ing foam, IntelliTouch closed-cell polyolefin foam,

black with adhesive. 918987- 000 1/8" x 3/16" x 25'. Seal ing foam, IntelliTouch closed-cell polyolefin

foam, black with 206681- 000 1/16" x 3/16" x 150'. Sea ling foam, IntelliTouch closed-cell polyolefin

foam, black with adhesive. 521701- 000 1/16" x 1/8" x 150'. Sealing foam, I ntelliTouc h closed-cell polyolefi n

foam, black with adhesive. 969637- 000 1/32" x 3/16" x 300'. Sea ling foam, IntelliTouch closed-cell polyolefin

foam, black with adhesive. 831315- 000 1/8" x 108'. Double -sided adhesi ve for installing closed-cell polyo lefin

foam.

Stylus

683550- 000 IntelliTouch Stylus, black soft tip

SecureTouch Touchscreens

939841- 000 SecureTouc h (0.5") 10.4" fl at, clear touchscreen 360253- 000 SecureTouc h (0.5") 12.1" fl at, clear touchscreen 186831-000 SecureTouch (0.5") 14" flat, clear touchscreen 858471-000 SecureTouch (0.5") 17" flat, clear touchscreen 493815-000 SecureTouch (0.25") 10.4" flat, clear touchscreen 582681-000 SecureTouch (0.25") 10.4" flat, antiglare touchscreen 400439-000 SecureTouch (0.25") 12.1" flat, clear touchscreen 428565-000 SecureTouch (0.25") 12.1" flat, antiglare touchscreen 476561-000 SecureTouch (0.25") 15" flat, clear touchscreen 247553-000 SecureTouch (0.25") 15" flat, antiglare touchscreen

IntelliTouch® Flat and Spherical Touchscreens

433451- 000 IntelliTouch 6.4" flat, antiglare touchscreen 518375- 000 IntelliTouch 8.4" flat, antiglare touchscreen 072717- 000 IntelliTouch 9.4" flat, antiglare touchscreen

C-81

Part Number Description

464629- 000 IntelliTou ch 10.4" flat, antiglare touchscreen 269259- 000 IntelliTouch 10.4" flat, ant iglare touchscreen 174235- 000 IntelliTou ch 11.4" flat, antiglare touchscreen 497139- 000 IntelliTou ch 12.1" flat, antiglare touchscreen 870693- 000 IntelliTou ch 13.1" flat, antiglare touchscreen 872581- 000 IntelliTou ch 13.8" flat, antiglare touchscreen 119941- 000 IntelliTou ch 14.2" flat, antiglare touchscreen 094939- 000 IntelliTou ch 15" flat, antiglare touchscreen 446211- 000 IntelliTou ch 15" flat pro file, antiglare touchscreen 061863- 000 IntelliTou ch 16.1" flat, antiglare touchscreen 027307- 000 IntelliTou ch 17" flat, antiglare touchscreen 057855- 000 IntelliTouch 18.1" flat, antiglare touchscreen 385094- 000 IntelliTou ch 20.1" flat, clear touch screen 244599- 000 IntelliTou ch 21" flat, clear touchsc reen 502833- 000 IntelliTou ch 21" flat, clear touchsc reen 337235- 000 IntelliTou ch 14" spheric al, clear touchscreen 980403- 000 IntelliTouch 14" spheric al, antiglare touchscr een 536385- 000 IntelliTouch 14" spherical, clear touchscreen 594597- 000 IntelliTouch 14" spheric al, antiglare touchscr een 264963- 000 IntelliTou ch 15" spheric al, clear touchscreen 513873- 000 IntelliTouch 15" spherical, antiglare touchscreen 305385- 000 IntelliTouch 15" spherical, clear touchscreen 329383- 000 IntelliTouch 15" spheric al, antiglare touchscr een 260573- 000 IntelliTou ch 17" spheric al, clear touchscreen 431253- 000 IntelliTouch 17" spheric al, antiglare touchscr een 372695- 000 IntelliTou ch 17" spheric al, clear touchscreen 123641- 000 IntelliTouch 17" spheric al, antiglare touchscr een 366503- 000 IntelliTou ch 19" spheric al, clear touchscreen 093691- 000 IntelliTouch 19" spheric al, antiglare touchscr een 440789- 000 IntelliTouch 19" fst, clear touchscreen 661457- 000 IntelliTouch 19" fst, antiglare touchscreen 993323- 000 IntelliTou ch 20" spheric al, clear touchscreen 463259- 000 IntelliTou ch 21" spheric al, clear touchscreen 729761- 000 IntelliTouch 21" spherical, antiglare touchscreen

C-82 IntelliTouch/SecureTouch Guide

HAPTER

LOSSARY

Autosizing-Tru e autosizing occurs when a monitor can maintain a constant image size across diff erent video modes. Two common ways of achieving autosizing ar e mode sensing, pre-programmed factory settings and use r def ined modes.

Bandwidth-The range of fre quenci es over which the video d ispla y’s electr onics 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.

Barrel-A type of distortion in whic h an im ages’s sides or top ( or bot h) a ppear t o bulge outward.

Blooming-When image brightness increases, the CRT’s electron beam tends to spread out and lose focus. This loss of focus on bright portions of an image makes the image appear to expand or “bloom”, and lose detail.

Bow-A type of distortion in which opposite sides of the screen image curve in the same direction.

Convergence-The ability of the monitor to correctly align the red, green and blue components of an image on the screen. Convergence problems are often visible as fringes of color at the edge of the screen or color around text or graphics where it shoul d be white.

CRT-An acronym for cathode ray tube. A type of displa y in which images are created by electron beams that caused the glowing of phosphors inside the surface of a glass screen.

DAF-Dynamic Astigmat ism Focus. A technique usi ng a quadr uple le ns to f ocus the electron beams horizontally and diffuse it vertically.

Dot Pitch-The distanc e between a phos phor dot and the next nearest dot of the same color on a CRT, expressed in millimeters. The dot pitch does not correspond to the display reso lution in pixels. Inst ead, the CRT’s electron beam hits one or more phosphor dots to create a pixel. Monitors with smaller dot pitches gene rally produce shar per images because smaller phosphor dot s can be used to represent each pixel more accurately.

Glossary-83

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 vert ical focusing, and thus greater focal co mpensa tion than the standard DAF. This greater focal control gives a finer image and minimal Moire.

Drift-See swim.

Electron Gu n -Located at the narrow end of the CRT, the electr on gun shoots electron beams at colored phosphor dots to form the image on a monitor.

Flicker- Unsteadiness of the image caused by low refresh rate. Frequency-Defines the number of events during a time perio d. Hertz (Hz) is a

measurement of frequen cy.

Graphics M ode-A scanning mode in which greater number of dots, that form an image, are displayed with var ious colors and patterns.

Hertz-(Hz)-A unit used to measure frequency. It is defined as numbers of events per second. 1 Hz=1 cycle per second.

Hori zo nt al Sc an ni ng -The movement an electron beam trac es across horizonta l phosphor dots on the CRT.

Hori zontal Scanning Frequency-The rate in kHz of how many times an electron beam traces across horizontal lines of phosphor dots in one second, “painting” the image. Monitors with higher horizontal rates can run higher resolutions.

Interlaced Scanning Mode-A scheme that takes two passes to paint an on screen image, painting every other line on the first pass and sequentially filling in the rest of the line on the second pass. This sc heme usually causes flicker.

Interlacing-See Interlaced Scanning Mode.

Glossary-84 IntelliTouch/SecureTouch Guide

Invar-Shadow Mask-A special type of shadow mask that is made out of Invar, an alloy that is able to withsta nd high temperature generated by the electron beam. The Invar shadow m ask allows the CR T to gen erate a brighte r imag e than the conventional shadow mask. (See Shadow Mask). An Advanced Invader Shadow Mask improves brightness by 40% over the standard.

Jitter-See Swim.

k-Small letter k stands for Kilo , Gree k for 1,000, e.g. kg, kHz. Keystone-A type of distorti on in which the screen image is smaller at one side

of the screen than at the opposite side.

LCD-Liquid Crystal Display (LCD) monitors form screen images using liquid crystals activ ated by elect ro ni c fi eld s. LC D mo n itors are flat an d thin, producing smooth, crisp images with less distortion. Commonly used in notebook computers.

Linearity-The tendency for changes in an image to be constant. Non-linearity causes images to be more distorted in one area of the screen than in another. This is sometimes caused by poor volt age regulation in the monitor’s electronics.

Low Emission-A characteristic of a monitor that has special shielding to lower the emission of ELF (extremely low freque ncy) and VLF (very low frequency). It is usually referred to as a government safety standard, e.g. MPRII.

Low Radiation-See Low Emission.

M-Upper case M stands for Mega, Greek for 1 million, e.g. MHz. Microprocessor Based Monitor-This type of monitor normally has more

flexibili ty in accepting input signals and more adjustment functions. It also contains internal memory to save screen image information (size, position, signal timings, etc.).

Misconvergence-The inability of the monitor to correctly al ign the red, green and blue components of an image on the screen (see primary c olor). Misconvergence is often visible as fringes of color at the edge of the screen or color around text or graphi cs where it should be white.

Moiré-A wavy distortion pat tern caused by the interference between contrast, brightness and other ch aracteristics of the input signal.

Glossary-85

MPR-II-The radiation emission standard published by the Swedish National Board for Meas urement and testing .

Multi-Frequency vs Fixed Frequen cy-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 monitor s: the tri or quad sync multi-freque ncy monitor, and the variable multi-fre quency monitor. Tri/quad sync monitors will sync on 3 to 4 different horizontal scan rates (e.g.

31.5 kHz, 35.2 kHz, 48 kHz). Higher resolution/refresh rates can be achieved from this higher horizontal scanning capability. A variable multi-frequency monitor will have a range of horizonta l scan rates (e.g. 31 kHz to 64 kHz) and vertical scan rat es (e.g. 50Hz to 90Hz). The monitor will sync on any input signal which falls into these ranges. Most variable mullet-f requency monitors are micropro cess o r bas ed .

Multiple Frequency Mon itor-A monitor that c an be set at more tha n one vide o mode. A true multiple frequency monitor can be set at all the video modes that are currently in use today, e.g. CGA,EGA, VGA, SVGA, etc.

Multiple Scanning Monitor-See Multiple Frequency Monitor.

Non-glare-a term used to describe the specially treated monitor surface as nonreflective.

Non-interlaced Scanning Mode-A scheme for painting an on-screen image that paints all the li nes in one pass and then paints an entir ely new frame. A noninterlaced scanning mode reduces flicker.

Non-static-a term describing the characteristics of a specially treated monitor that prevents buil d-up of static electricity on the monitor surface.

Persistence-A measurement of screen phosphor substance. It indica tes how long the phosphors continue to glow after being struck by the picture tube’s electron beams.

Phosphor Dots-Colored compounds that coat the inside of the CRT screen in tiny dots. When struck by electron beams from the electron gun, the phosphor dots glow to create the image on the monitor.

Pincushion-A type of distortion in which the sides or top of the scre en image seems to cur v e inwa r d .

Pixel-The smallest information building block of an on-screen image. The resolution of a monitor is determined by the number of pixels covering the width and height of the complete on-screen image.

Glossary-86 IntelliTouch/SecureTouch Guide

Primary Colors-In light (and in monitors, which produce light) they are the basic colors-r ed, green and blue-that can be added together to create any other color.

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 dr awn 60 times per second. A low vertical refre sh rate p ro du ces visi ble flick er .

Resolution-A stand ard by which the sharpness of the monitor is defined. It is defined by the number of pixels tha t are used to form an image. For exam ple, a resolution of 1024 by 768 has 1024 pixels ru nning horizontally and 768 pixels running vertically for a total of 786,432 pixels.

Roping-Describes a n image distortion that gives solid straight lines a helical or twisted appearance. This problem is caused by poor convergence.

Scan-The process by which an image is developed. The electron beams excite the phosphor on the monitor scre en dot by dot and line by line. The faster the scanning the more stab le t he imag e.

Shadow Mask-A mask formed behind the screen of a monitor. It consists of small holes that are used to filte r and focus the light emitted from the electron gun.

Sharpness-Rather subjective and dependent on the eyes’ interpretation of the image.

Slot Mask-Also called aperture grille. Serves the same function as the shadow mask except tha t the slot mask is made up of vertical wires stretched behin d the screen. This mask technology enables more light to filter through the mask, therefore givi ng the screen a brighter image.

Stripe Pitch-The equivalent of dot pitch on Trinitron tubes; the distance between one stripe and the next one of the same color, expre ssed in millimeters.

SuperClear™-Super Clear offe rs up to 30% more brigh tness a nd contrast , due to the addition of micro filte rs, than conventional CRT’s.

SVGA-An acronym for Super Video Graphics Array. A standard character ized by a resolution of 800 by 600.

Glossary-87

Swim-An image should be rock-steady on the monitor screen. Swim, like similar charact eristics jitter and drift, is a measure of how much an on-screen image wavers over a given time.

Triad-A triad contains three phosphor filled dots-one red, one green and one blue-arranged in a tria ngular fashion. Each of the three elect ron guns are dedicated to one of these colors (for example, the red gun excites only a triad’s red phosphor dot). As the guns scan the screen, each active triad produces a single color, which depends on the combination of excited color dots and how active each dot is.

UVGA-Ultra Video Graphic Array. It refers to 1024 by 768 resolution.

Vertical Refr es h R ate-See Refresh Ra te . Vertical Scan ni ng -The movement the electron beam traces across vertical

phosphor dots on the CRT. VESA®-An acronym for Video Electronic Standards Association. The

association tha t standardizes the graphics board s with both software and monitors. It set the standardized refresh rate of 72Hz for SVGA (800x600) and VGA (640x480).

VGA-A Video Graphic Array (VGA) monitor has a standardized resolution of 640x480.

Video Bandwidth-See Bandwidt h. VLF-An acronym for Very Low Frequency. Defines fre quency range from

3,000 to 30,000 Hz. This type of radiation is emitted from the monitor’s deflective yoke .

XGA-An Extended Graphics Array (XGA) monitor has a standar dized resolution of 1024 by 768.

Glossary-88 IntelliTouch/SecureTouch Guide

Elo TouchSystems IntelliTouch SecureTouch, IntelliTouch Series, SecureTouch Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual