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Hand Held Scanner
User Manual
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Unitech Hand Held Scanner User Manual

Hand Held Scanner
User’s Manual
Date : January, 2000 Version : 2.0
CHAPTER 1 OVERVIEW............................................................... 3
CHAPTER 2 KEYBOARD INTERFACE....................................... 4
2.1 INSTALLATION ................................................................................... 4
2.2 INSTALLED ON PC/AT WITHOUT KEYBOARD........................................5
2.3 INSTALLED ON MACINTOSH ................................................................ 5
2.4 INSTALLED AS AN USB INTERFACE .................................................... 6
2.5 UNDERSTANDING THE OPERATING PARAMETERS.................................. 6
CHAPTER 3 RS232 SERIAL INTERFACE.................................... 8
3.1 INSTALLATION ................................................................................... 8
3.2 UNDERSTANDING THE OPERATING PARAMETERS.................................. 9
3.3 SERIAL TTL..................................................................................... 10
CHAPTER 4 TERMINAL INTERFACE ...................................... 11
4.1 INSTALLATION ................................................................................. 11
4.2 UNDERSTANDING THE OPERATING PARAMETERS................................ 12
CHAPTER 5 WAND EMULATION.............................................. 13
5.1 INSTALLATION ................................................................................. 13
5.2 UNDERSTANDING THE OPERATING PARAMETERS................................ 13
CHAPTER 6 SETUP ...................................................................... 15
6.1 BAR CODE MENU SETUP................................................................... 15
6.2 QUICK SETUP ................................................................................... 18
6.3 BATCH SETUP................................................................................... 18
CHAPTER 7 OUTPUT DATA EDITING...................................... 21
7.1. GENERAL........................................................................................ 21
7.2. FORMULA........................................................................................ 21
7.3. PROGRAMMING ............................................................................... 22
7.4. QUALIFIER ...................................................................................... 24
7.5. MODIFIER ....................................................................................... 26
7.6. EXAMPLES ...................................................................................... 27
7.7. ADVANCED FEATURES..................................................................... 27
CHAPTER 8 PIN ASSIGNMENT AND SPECIFICATION ......... 29
8.1 PIN ASSIGNMENTS............................................................................ 29
8.2 SPECIFICATION................................................................................. 33
APPENDIX A. QUICK SETUP SHEET ......................................A.1
APPENDIX B. FUNCTION CODES FOR PC.............................. B.1
APPENDIX C. FUNCTION CODES FOR IBM TERMINALS ...C.1
APPENDIX D. SETUP MENU......................................................D.1
APPENDIX E. FULL ASCII CHART...........................................E.1
APPENDIX F. BAR CODE TEST CHART..................................F.1
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Chapter 1 Overview
First of all, thank you for choosing Unitech’s products. This decoder build-in scanner comes in one model and supports interfaces such as keyboard wedge, RS232 serial wedge, RS232 terminal wedge, wand emulation, and the latest USB interface. In most of the cases, simply selecting an appropriate cable with a device code will work for a specific interface.
As a keyboard interface, the scanner supports most of the popular PCs and IBM terminals. The installation of the wedge scanner is a fairly simple process without any changes of software or hardware.
As a RS232 serial interface, the scanner sends data by using RS232 communication protocol. The communication speed (baud rate) ranges from 300 bps to 38400 bps with both hardware and software handshaking are implemented.
As a RS232 terminal interface, systems with ANSI ASCII communication environment such as UNIX, XENIX are supported. The scanner is installed between a host computer and a terminal and supports full duplex, half duplex and block communication modes.
As a wand emulation scanner, the output of the scanner emulates a wand scanner output. Two output formats are supported, Code 39 format and Native format. In Code 39 format, the scanner always outputs the same data contents but with Code 39 symbology no matter what symbology of the label is encoded. In Native format, the scanner output the same contents and symbology as the scanned label.
The scanner supports the following bar code symbologies: * Code 39 Standard and Full ASCII. * Codabar. * UPC/EAN with supplement codes. * UCC/EAN128. * Interleaved 2 of 5. * Code 32(Italian pharmacy). * Standard 2 of 5. * Code 93. * MSI code. * Code 128. * Plessey code. * Label Code IV and V * China Postal Code (Toshiba Code) * Delta Distance Code.
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Chapter 2 Keyboard Interface
As a keyboard Interface, the scanner is actually installed between PC
(or terminal) and keyboard. See Figure 1 for reference. The scanner
sends data to the host device by emulating the keyboard signals input
and acts like an extension of the keyboard.
2.1 Installation
This scanner can be installed easily by following the installation guide
illustrated below. Before you start the installation, locate a “Y” type
cable in the package.
Installation procedures:
1) Plug the modular (RJ45) connector of the “Y” cable into the bottom of the scanner until you hear a click sound.
Keyboard
PC or Terminal
Interface Cable ("Y" Cable)
Modular Connector
Figure 1. Installed as a Keyboard Interface
SCANNER
2) Turn off your PC or terminal.
3) Unplug the keyboard from the PC or terminal.
4) Plug the keyboard into a connector of the Y cable that mates with it.
5) Plug the remaining connector of the “Y” cable into the keyboard port of your PC or terminal.
6) Power up your PC or terminal you press the switch the beam should be out from the scanner.
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7) If nothing happens at step 6, check all cable connections first and make sure your PC or terminal has been powered. Contact technical support if problem remains after these checking.
8) Unless the scanner has been prior installed for the PC/terminal, user may have to select a proper device number from Group 1 of Appendix D.
9) The Default setting of this scanner is IBM PC/AT and PS/2. If you like to make sure that you have the right selection, you may scan the following label,
PC AT[PS/2]
2.2 Installed on PC/AT without keyboard or laptop computer
The scanner has the capability to answer the keyboard inquiry made by PC to avoid “Keyboard Error” message when keyboard is not present. This implementation is useful to the applications where keyboard entry is not necessary. You may scan the following label to enable this feature. (Some of the laptop computers may not work properly with this feature. Please contact your local vendor for further support.)
Keyboardless
2.3 Installed on Macintosh
You can install the scanner on a Macintosh ADB port similar to the way shown in Figure 1. As an option, the scanner can be installed right between keyboard and mouse too. You may scan the following label to enable this feature.
Macintosh
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2.4 Installed as an USB Interface
You can install the scanner with the USB interface cable to work with either PC or iMac USB port. See Figure 1.1 for reference. Your operating system may require the original setup CD to install the driver with initial setup.
PC or iMAC
USB Connector
Keyboard
Figure 1.1. Installed as an USB Interface
USB Interface Cable
Modular Connector
The factory default setting should work with either PC or iMac USB Interface, you may also scan the following label to make sure you get the right device setting.
USB
2.5 Understanding the Operating Parameters
There are some operating parameters that can be configured to work for different applications. It will be described as follow;
SCANNER
Intercharacter Delay
Intercharacter delay is the time period that the scanner will wait before transmitting the next character after the first character was sent. If data sent by the scanner was incorrect or missing characters, a longer intercharacter delay may solve the problem.
Interblock Delay
Interblock delay is the minimum time interval between two adjacent scanning. If the processing speed of your host device is slower than
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your scanning speed, a longer interblock delay may ensure the data integrity.
Function Code
The scanner can emulate function and other special keys on the keyboard by scanning some pre-defined labels. Appendix B includes those labels for special keys on PC, Macintosh, and IBM terminals. As an option, you may also print these labels by printing their corresponding Code 39 characters (in brackets) to work with scanner.
Caps-Lock
This parameter tells the scanner the current Caps-Lock status of the keyboard so that the character transmitted by the scanner is in correct case.
* Auto Trace (For PC AT/XT only):
In Auto Trace mode, the scanner will keep track of the Caps-Lock status automatically. For some PCs, the scanning performance may be compromised because of the auto tracing. If the scanning performance is poor (or can not scan) or the scanner can not output the upper/lower case characters correctly, try to select one of the next two choices instead of auto tracing.
* Lower Case:
When the keyboard is in the unshifted state (CapLock is not pressed), select "Lower Case".
* Upper Case:
When keyboard has the CapLock key on, select "Upper Case".
Alt Key Mode
“ALT Key Mode” is a choice in the language selection. Sending characters by ALT key plus keys on the numeric keypad is a feature in MS-DOS. When selecting "ALT Key Mode", the scanner sends out the native ASCII combination codes to represent each character of the bar code scanned. If your system accepts ALT key sending, you can enable this mode and ignore selections of the "Upper/Lower Case" and "Language".
You may find these settings on the Appendix D page D2 and D3.
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Chapter 3 RS232 Serial Interface
3.1 Installation
To use the scanner as a RS232 serial interface, a RS232 interface cable and a power adapter are required. See Chapter 8 for cable pinout and adapter specification. Figure 2 shows an installation diagram for your reference.
Installation procedures:
1) Make sure the scanner’s cable has the right connector and pinout for the RS232 port of the host device. If the pinout is different from device, swapping pins is necessary to achieve proper communication.
2) If the host device has power output at RS232 interface port, the scanner can be powered by connecting that power line to pin 9 of the scanner connector. If there is no power at RS232 port, An AC adapter is needed. Plug the adapter into the DB type connector at the end of the interface cable.
SCANNER Cash Register, PC or other device.
AC adaptor
RS232 Connector
Figure 2. Installed as a Serial Interface
3) Plug the DB type connector of the interface cable into host’s RS232 port and power up the device.
4) When the scanner is powered, a long beep sound indicates the scanner is ready to use.
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3.2 Understanding the Operating Parameters
Device Type
You will need to select the device type to “Serial Interface” from Appendix A, Group 1 of Appendix D, or the following label.
Serial Interface
Baud Rate, Parity and Data Bit:
These parameters set the scanner’s communication protocol that must be matched by the host. The default setting for the serial interface is 9600 baud rate, none parity, and 8 data bit.
* Baud Rate can be 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400
bps.
* Parity can be even, odd, space, mark, or none.
* Data Bit can be 7 or 8 bit long.
The scanner may not support settings with Data Bit as 7 and Parity as none combination. Such combination is treated as 7 data bits with MARK parity.
Handshaking:
The scanner supports CTS/RTS handshaking as an option. The hardware handshaking is supported on character-by-character basis.
During the communication, the scanner will stop sending data until the CTS is valid within time specified by the Time Out parameter. During this time-out waiting period:
-- If CTS is valid, communication resumes.
-- If CTS is not valid, the scanner sounds an error beep and discards the current buffered data.
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BCC Character:
BCC check character is calculated for entire data stream by using “Exclusive OR ” method. It is sent after data stream for data verification.
Time Out:
You can adjust the Time Out duration for handshaking and ACK/NAK protocol to fit applications.
3.3 Serial TTL
This scanner supports serial TTL interface which follows the RS232 communication data format but with TTL voltage output ranged from 0V to 5V.
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Chapter 4 Terminal Interface
4.1 Installation
To install the scanner as a terminal interface, you need a DB25 RS232 cable, a terminal wedge “Y” cable and an AC adapter. See Figure 3 for reference.
Original Cable
Terminal
male
female
"Y" Cable
Host
AC adaptor
RS232 Cable
SCANNER
Figure 3. Installing as a Terminal Wedge
Installation procedures:
1) Power off the terminal and unplug the communication cable at terminal side.
2) Install the interface cable as shown in Figure 3. The “Y” cable provided in Figure 3 is for terminals with female connector on communication port. If there is a male connector on your terminal, you need a converter to change that male to female and another converter to change the female to male on host connector.
3) When the scanner is powered, a long beep sound indicates that the scanner is ready to use.
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4) If the scanner has not been configured yet, you need to select “Terminal Wedge” device number from Appendix A, Group 1 of Appendix D, or the following label.
Terminal Wedge
4.2 Understanding the Operating Parameters
Baud Rate, Parity and Data Bit:
These parameters set the scanner’s communication protocol which must be matched the same setting by the host. The default setting for the terminal interface is 9600 baud rate, none parity, and 8 data bit.
* Baud Rate can be 300, 600, 1200, 2400, 4800, 9600, 19200, or
38400 bps.
* Parity can be even, odd, space, mark, or none.
* Data Bit can be 7 or 8 bit long.
The scanner may not support settings with Data Bit as 7 and Parity as none combination. Such combination is treated as 7 data bits with MARK parity.
Data Direction:
This setting is only for the terminal wedge and corresponds to the terminal communication mode. If the terminal has:
* "Full Duplex" mode, set the data direction to "Send to Host". * "Half Duplex" mode, set to "Send to Host and Terminal". * "Block" mode, set to "Send to Terminal".
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Chapter 5 Wand Emulation
5.1 Installation
Figure 4 shows how a wand emulation scanner is installed to a data collection terminal. User needs to pay attention to the scanner pinout that should be the same as specified by the terminal.
SCANNER
Figure 4. Installed as a Wand Emulation Scanner
5.2 Understanding the Operating Parameters
Code 39 Output:
When device number “07” is selected, the scanner is set as wand emulation with Code 39 output. In this configuration, the scanner always outputs data with Code 39 symbology no matter what symbology of the label it scans. You may scan the following label if this setting matched your application.
Code39 Wand
Emulation
Native Output:
When device number “26” is selected, the scanner is set to wand emulation with native output. That means the scanner outputs data with both the same contents and symbology as the label represents.
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Output of Wand Emulation: (Appendix D, 3) Select one of the two choices for the polarity of data output: * High level for bar (black) and low level for space (white). * High level for space (white) and low level for bar (black).
Level Duration of Minimum Width: (Appendix D, 3) Determine the minimum time duration for bar or space either 200 us or 600 us. Longer time means slower movement of the wand scanner.
Polarity of Idle: (Appendix D, 3) Polarity of idle (without scanning) can be selected either low or high.
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Chapter 6 Setup
The scanner interface can be configured to fit the user's specific application. All configuration parameters are stored in a non-volatile memory, which is retained even if power is lost.
6.1 Bar Code Menu Setup
The setup menu in Appendix D contains eight groups:
* Group 1: Device selection. * Group 2: Beep and delay. * Group 3: Keyboard and Wand Emulation. * Group 4: RS-232 Settings * Group 5: Scanner port. * Group 7: Code 39, I 2 of 5, S 2 of 5 and Code 32. * Group 8: Code 128, Code 93, Code 11, Codabar, and MSI. * Group 9: UPC/EAN, and Delta Distance Code. * Group 10: Data Editing. * Group 11: Dump setup.
6.1.1 Setup Procedures:
For most parameters, proceed the following steps for the setting:
1) Locate a group that contains the parameter to be changed.
2) Scan the "Enter Group #" label to enter setup mode. The green
LED on the scanner will flash to indicate that setup is in progress.
3) Scan the label (on right hand side) representing the parameter to
be changed.(For example, B1 label)
4) Scan the labels (number) representing the desired parameter value.
(For example, 05, scan “0” and “5” labels.)
5) Repeat step 3 and 4, if necessary, to change the parameters in the
same group.
6) Scan "Exit" label to end the group setup. The scanner will make
two beeps to end the setup.
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