RealScan 7892 Bi-Modal
Presentation Scanner
Installation/Owner Guide
497-0003071
Release E
April 3, 2003
Information Products
RSD-Atlanta
NCR RealScan 7892 Bi-Modal Presentation Scanner Installation and Owner Guide
04/03 497-0003071 Release E 2 of 38
The product described in this book is a licensed product of NCR Corporation.
NCR is a registered trademark of NCR Corporation.
NCR RealScan is a trademark of the NCR Corporation
It is the policy of NCR Corporation (NCR) to improve products as new technology,
components, software, and firmware become available. NCR, therefore, reserves the
right to change specifications without prior notice.
All features, functions, and operations described herein may not be marketed by NCR
in all parts of the world. In some instances, photographs are of equipment prototypes.
Therefore, before using this document, consult with your NCR representative or NCR
office for information that is applicable and current.
To maintain the quality of our publications, we need your comments on the accuracy,
clarity, organization, and value of this book.
Address correspondence to:
Manager, Information Products
NCR Corporation
2651 Satellite Blvd.
Duluth, GA 30096
Copyright © 2003
By NCR Corporation
Dayton, Ohio U.S.A.
All Rights Reserved
NCR RealScan 7892 Bi-Modal Presentation Scanner Installation and Owner Guide
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Preface
Audience
This book is written for hardware installers, service personnel, and system integrators.
Notice: This document is NCR proprietary information and is not to be disclosed or
reproduced without consent.
References
• NCR RealScan 7892 Bi-Modal Presentation Scanner User Guide
(B005-0000-1182)
• NCR RealScan 7892 Bi-Modal Presentation Scanner Parts Identification Manual
(B005-0000-1184)
• NCR Scanner Programming Tags
(BST0-2121-74)
• NCR Scanner/Scale Interface Programmer’s Guide (BD20-1074-A)
Revision Record
Issue Date Remarks
A November 2000 First Issue
B June 2001 Corrections: Page 2, LED Indicator colors.
Worksheet 30 and 10.
C October 2001 Wedge Option added
D September 2002 Added USB Connection
Added AIM Label Identifiers
E April 2003 Added Reduced Space Symbology (RSS) support
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Table of Contents
Preface.....................................................................................................................................3
Audience............................................................................................................................3
References ..........................................................................................................................3
Revision Record .....................................................................................................................3
Table of Contents...................................................................................................................4
Understanding Your Scanner................................................................................................5
Scanner Dimensions..........................................................................................................5
Scanner Location ...............................................................................................................5
Installing Your NCR RealScan 7892-0100............................................................................6
Standard Interface Connection.........................................................................................6
USB Interface Connection.................................................................................................7
Dongle Interface Setting...............................................................................................8
Programming the RealScan 7892.................................................................................9
Installing Your RealScan 7892-0200 (Wedge Option).......................................................10
Operating Your Scanner......................................................................................................11
Pick-Up Scanning............................................................................................................12
Label Orientation.................................................................................................................13
Scan Pattern Location......................................................................................................13
PACESETTER..................................................................................................................13
Single Line Scanning .......................................................................................................14
Single Line Scanning Programmable Options...............................................................14
Reduced Space Symbology.............................................................................................15
Taking Care of Your Scanner..........................................................................................15
Correcting Scanner Problems..............................................................................................16
Programming .......................................................................................................................17
On-Site Offering...............................................................................................................17
Depot Offering.................................................................................................................17
Identifying Program Defaults.........................................................................................18
Using the Programming Worksheets.............................................................................19
Programming Worksheets..............................................................................................20
Radio Frequency Interference Statements .........................................................................33
Federal Communications Commission (FCC) ..............................................................33
Canadian Department of Communications ..................................................................33
Voluntary Control Council for Interference (VCCI).....................................................33
Safety Extra Low Voltage....................................................................................................34
Laser Safety ..........................................................................................................................35
Laser Safety Label............................................................................................................35
IEC Class 1 Laser Identification.....................................................................................35
Laser Power.....................................................................................................................36
Declaration of Conformity..................................................................................................37
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Understanding Your Scanner
The RealScan 7892 is available in two models: 7892-0100 and 7892-0200. The 7892-0100
offers IBM, RS-232, and OCIA communication, and permits you to change among these
three programming types. It can be connected to the host terminal through a standard
interface connection or through a USB connection.
The RealScan 7892-0200 offers PC Keyboard Wedge communication only. This model is
designed to address the needs of retailers whose point-of-sale application does not
accept scan data through a communication port.
Power for the RealScan 7892 is provided through a wall adapter Power Module or
directly from the host terminal. Input voltage to the RealScan 7892 must be +12Vdc.
Scanner Dimensions
140 mm
(5.5 in.)
89 mm
(3.5 in.)
140 mm
(5.5 in.)
89 mm
(3.5 in.)
17598
Scanner Location
When identifying a location for your NCR RealScan 7892, you must consider the length
of the connecting cables. The electrical outlet used for the Power Module can be
approximately 74 inches (188 centimeters) from the host terminal. Depending on which
Scanner Module Cable you have, the scanner can be approximately 6.6 feet (2 meters)
or 13.1 feet (4 meters) from the host terminal or PC. However, these distances are
normally shorter depending on how you route the connecting cables. You also want to
be sure that the Scanner Module Cable is long enough to permit the scanner to be
picked up when required for large packages.
Like any electronic device, your RealScan 7892 should not be located in direct sunlight.
Temperatures above 104 degrees Fahrenheit (40 degrees Celsius) can occur when
sunlight falls on objects through windows or on an outdoor checkstand.
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Installing Your
NCR RealScan 7892-0100
The RealScan 7892 can be connected to the host terminal through a standard interface
connection or through a USB connection. Power for the RealScan 7892 is provided
through a wall adapter Power Module or directly from the host terminal.
Standard Interface Connection
In most configurations the Scanner Cable connects the RealScan 7892 to your host
terminal. Refer to the terminal documentation for information about connecting this
cable. Some terminals require a trained technician to perform this function. If a Power
Module is required, it connects to a connector on the Scanner Cable.
Some less common configurations require two cables: a Scanner Cable and an Interface
Cable. If a Power Module is required for this configuration, it connects to the box on
the end of the Scanner Cable.
Note: The Power Module is not used if the RealScan 7892 receives power from the host
terminal.
17681
Power
Module
7892
Scanner Cable
Host Terminal
Host Terminal
7892
Power
Module
Interface Cable
Scanner Cable
Most Common Configuration
Uses 7892 Scanner Cable
Less Common Configuration
Uses 7890 Scanner Cable
Uses 7890 Interface Cable
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USB Interface Connection
Connecting an NCR RealScan 7892 Bi-Modal Presentation Scanner to a USB port on a
host terminal requires two cables. One end of the Dongle Adapter Cable connects to
the host terminal. The other end has an Interface Box that contains a printed circuit
board with all the necessary circuitry. The host terminal supplies power for this
circuitry. A Scanner Cable connects the RealScan 7892 to the Interface Box.
Note: The RealScan 7892 receives power from the host terminal. Do not connect a
Power Module to the Interface Box.
Host Terminal
NCR 7892
Scanner Cable
Dongle Adapter Cable
19304
Interface Box
Scanner Cable
1416-C582-0030 Scanner Cable
Dongle Adapter Cable
1416-C731-0004 Latching, Double USB, Scanner is powered by terminal
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Dongle Interface Setting
J3 in the Interface Box on the end of the Dongle Adapter Cable contains a shunt that
must be correctly installed for the host terminal. The cable is shipped from the factory
with the shunt on pins 3 and 4. The following positions are available.
• Pins 1 & 2 – Not used
• Pins 3 & 4 – IBM
• Pins 5 & 6 – NCR/RS-232
• Pins 7 & 8 – Not used
The cover on the Interface Box latches together along one side. Carefully pry open the
latched edge to open the Interface Box. Check the shunt position on J3 and change as
needed. Close the Interface Box cover. A label is attached to the outside of the Interface
Box that identifies the available interface settings.
19573
J1
J2
J3
J4
J5
R1
R2
R3
R4 R5
R6 R7
C1
C2
C3
C4
C5
C6
C7 C8
U1
U2
U3
U4
U5
U6
U7
Y1
1
2
7
8
WIRH
J3
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Programming the RealScan 7892
The RealScan 7892 must be properly programmed when using the USB Dongle
connection to the host terminal. This programming depends on the type of host
terminal being used.
RS-232 Communications
The RealScan 7892 must be programmed for RS-232 communications protocol and
some of the RS-232 parameters must be set to specific values. Other parameters may be
set as required by the host terminal. Set the required program parameters by scanning
the following sequence of programming tags. These must be the first tags scanned after
supplying power to the unit.
1. Programming Mode tag – puts scanner in base programming state.
2. Hex 3, Hex 0, Hex B, Hex 5 – sets the required RS-232 programming parameters.
• RS-232 communications protocol
• 9600 baud
• Odd parity
• 1 stop bit, 7-bit character
3. Save and Reset – saves the program just entered and resets the RealScan 7892.
The host terminal software may now be configured to use the communication port
assigned by the IO Network driver when the Dongle Adapter Cable was plugged into
the USB port.
IBM Communications
The host terminal should assign the port and associate the scanner with the application
when the USB connection is made. When programming a RealScan 7892 for IBM USB
communications, all parameters are set to the standard default values, and the
communications protocol is set to IBM USB. This is accomplished by scanning the
following sequence of programming tags. These must be the first tags scanned after
supplying power to the unit.
1. Programming Mode tag – puts scanner in base programming state.
2. Hex 3, Hex 0, Hex E, Hex 1 – sets all parameters to standard default values and
sets the communication protocol to IBM USB.
3. Change any other parameters as required by the host terminal.
4. Save and Reset – saves the program just entered and resets the RealScan 7892.
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Installing Your
RealScan 7892-0200
(Wedge Option)
The RealScan 7892-0200 provides the wedge option that permits the RealScan 7892 to
be connected to the host terminal through a keyboard connector. Scan data is input
into the keyboard port. When connected in this configuration the RealScan 7892 cannot
receive commands from the host terminal.
Configure your Wedge option as shown in the following illustration.
19183a
Power
Module
7892 Scanner
Scanner Cable
Power Cable
Host Terminal
Keyboard
Keyboard Wedge Cable
1416-C636-0030(7892-0200)
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Operating Your Scanner
The RealScan 7892 is designed for both presentation scanning and pass-by scanning.
Pass-by scanning is often used at checkout stands, such as in grocery stores. In the
checkout stand environment, normally large quantities of items must be scanned in a
short amount time. Therefore, you pass the items over the scanner, moving them from
one side of the checkstand to another. The scanner reads the label while the items are
moving by.
With presentation scanning, you simply present the label to the scanner and then
remove it. Do not move the label past the scanner, but to the scanner. Presentation
scanning is particularly useful in a retail environment where the number of items
associated with each transaction is normally small. There are three simple steps to
presentation scanning.
1. Move the bar code label to the scanner as shown.
17682
Scan Window
2. Position the bar code label completely within the red Laser Scan Pattern as
indicated below. Normally the bar code should be three to four inches from the
scanner. When the label is read the Status Indicator turns green, then returns to
red. If enabled, a Good Read Tone also sounds.
17684
Laser Scan
Pattern
Status
Indicator
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3. Move the bar code label away from the scanner as shown. The scanner is now
ready to read another bar code label. To read another bar code, simply perform
these three steps again.
17685
Pick-Up Scanning
Occasionally you have merchandise that cannot be picked-up and presented to the
scanner. The package may be too heavy or too awkward to hold while trying to
position the bar code label. In these circumstances you can pick up the scanner and
take it to the merchandise. The RealScan 7892 is designed so that you can easily pick
the scanner up and hold it. Being lightweight, you can present the scanner to the
merchandise with little effort.
17686
Careful
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Label Orientation
Because your NCR RealScan 7892 produces a dense, omnidirectional scan pattern,
labels can be read from many different angles.
Scan Pattern Location
In order for the scanner to read a label, the center 90% of one scan line must cross the
bar code. To successfully read Code 39 and Interleaved 2 of 5 labels, the scan line must
cross the entire label, not missing any of the bars or spaces. UPC and Code 128 labels
can be read by piecing together two reads of slightly more than half of each side of the
bar code. Therefore, these labels are much easier to read and do not require as much
accuracy when presenting the label to the scanner.
Because of the large scan pattern, you do not have to be very precise when you
position the label. However, the concentration of scan lines is greater in the center of
the scan pattern. Because of this, fewer rejects occur if you try to position the
merchandise so that the label is presented toward the center of the scan pattern.
PACESETTER
Vendors and printers occasionally supply products to the market with bar codes
overprinted, underprinted or truncated. Some labels have missing margins. Others
may be printed around the corners of the packages or on media that wrinkles when
picked up. PACESETTER is a standard feature that addresses the problem of
unreadable labels.
PACESETTER Plus trailer provides for symbol quality data being applied at the end
of UPC and EAN bar codes. This capability can be either programmed using the
programming tags or on command when using RS-232 communication program.
3 1 2 3 On Enable Trailer
3 1 3 1 Off Disable Trailer
Note: Commands are presented in NCR Scanner/Scale Interface Programmer’s Guide
(BD20-1074-A)
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Single Line Scanning
Single Line Scanning is a feature of the NCR RealScan 7892-0100/0200; it is not
available with the 7892-0300. This feature permits you to scan a specific bar code in a
group of bar codes. The RealScan 7892-0100/0200 has a two-position switch located on
the side of the unit.
• Press the switch to the first position. The Status Indicator LED turns from red to
amber and a single red line is visible across the bar code.
• Align the bar code to be scanned with the scanner.
• Press the switch to the second position and the Status Indicator turns from amber
to green and the unit beeps, indicating a good read.
18281
Single Line Switch
Single Line Scanning Programmable Options
Single Line Switch Setting
Scanner decodes at the first position and projected line turns off upon a good read.
70% Line Width Option
Width of line is reduced by 30% to facilitate reading closely spaced bar codes.
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Reduced Space Symbology
Reduced Space Symbology (RSS) permits more data to be recorded in a smaller
physical space. This is accomplished by encoding the data in large symbol characters
rather than encoding each character separately. Also, no quiet space is required around
the symbols. The RealScan 7892 with RSS can read two types of RSS bar codes, both of
which can be stacked: RSS-14, RSS-14 Stacked, RSS Expanded, and RSS Expanded
Stacked. Refer to the NCR 7892 BiModal Presentation Scanner User Guide (B005-00000-
1182) for details about each of these bar codes.
Taking Care of Your Scanner
Although your RealScan 7892 is rugged, remember to treat it carefully. Keeping the
Scan Window clean helps keep the read rate exceptionally high. Follow these simple
instructions to keep your scanner clean and well maintained.
• Clean the scanner body with a soft cloth dampened by warm water and a mild
soap.
• When the Scan Window is dirty, clean it with a cloth dampened with warm water.
Your RealScan 7892 is designed to provide you with long, trouble-free service.
However, it is up to you to care for your scanner. The following list identifies things
you should consider in taking care of you scanner.
• Handle the scanner with care.
• Keep the Scan Window clean.
• Replace the Scan Window if excessively scratched.
• Do not pick up the scanner by the cable.
• Do not submerge the scanner or let it get wet.
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Correcting Scanner Problems
Problem Status Indicator
Tone Possible Cause Corrective Action
Scanner does not operate.
• Laser light off
• Motor off
• Interface Cable
Connector Box light
off
Off
Off No power to the unit
• Check the electrical outlet
for proper power.
• Check all cables for being
connected properly.
• Check the fuse in the
Interface Cable Connector
Box.
• Check power cable
connection.
Scanner does not operate.
• Laser light off
• Motor off
Off
Off Internal failure Have scanner repaired.
Scanner does not operate.
• Cannot read bar codes
• Problem still exists
after removing power
and then supplying
power
Flashes Red
Series of
beeps at
3-second
intervals
Internal failure Have scanner repaired.
Laser light does not go off.
Red, Green,
or none
On or Off Internal failure Remove power
IMMEDIATELY and have
scanner repaired.
Scanner reads only two
tags.
Normal
Normal Communication failure
• Check the
h
ost terminal o
r
PC for proper operation.
• Check the protocol
programmed.
Scanner does not read
labels. All other
indications normal and
unit programmed
properly.
Green
Off Internal failure Have scanner repaired.
Scanner does not
communicate to host
terminal when using IBM
468x communications
Series of 9
R
ed flashes
at
3-second
intervals
Off Host terminal is not
turned on
Turn on host terminal.
Cables disconnected
between RealScan 7892
and host terminal
Check Scanner Module cable
and Interface cable for proper
connection.
Green
Off Host terminal has not
established
communications with
the RealScan 7892.
Refer to the host terminal and
application documentation.
Check programmed options.
Scanner does not operate
when using IBM 468x
communications.
Rapidly
flashes Red
Off Host terminal has sent
the RealScan 7892 a
command to prevent it
from reading bar codes.
Terminal should enable the
RealScan 7892 later in the
transaction.
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Programming
On-Site Offering
Customers who sign up for NCR's On-Site Offering should do the following.
• Update your Installation and Owner Guide to include those programming
parameters you change (if any) by circling those areas/sections/ parameters you
change and then writing in the new values you program into your RealScan 7892.
Note: Reference the chart in the following section which contains the default values
that have been programmed into the RealScan 7892 at the factory.
• Keep your Installation Guide where it is accessible to the person(s) responsible for
interfacing with the NCR Customer Engineer who repairs your RealScan 7892
units.
• Prior to having the NCR Customer Engineer begin the repair of your failed
RealScan 7892, provide him with a copy of the pages that include the programming
changes you have made.
Note: In those cases where the NCR Customer Engineer does not receive documents to
the contrary, they will assume that no changes have been made to the RealScan 7892
Factory Default Values and they will program your repaired/replaced RealScan 7892
unit accordingly. If changes have been made and the NCR Customer Engineer has not
been made aware of these changes, then the repair time will be greatly increased as the
NCR Customer Engineer tries to identify the correct programming parameters.
Depot Offering
Customers who sign up for NCR's Depot Offering should do the following.
• Update your Installation and Owner Guide to include those programming
parameters you change (if any) by circling those areas/sections/ parameters you
change and then writing in the new values you program into your RealScan 7892.
Note: Reference the chart in the following section which contains the default values
that have been programmed into the RealScan 7892 at the factory.
• Keep your Installation and Owner Guide where it is accessible to the person(s)
responsible for mailing in your RealScan 7892 units for repair.
• Prior to mailing your failed RealScan 7892 in for repair, copy the pages that include
the changes you have made, and set a copy of these documents inside the box
containing your defective RealScan 7892 unit.
Note: In those cases where the NCR Depot does not find documents to the contrary,
they (NCR Depot) assumes that no changes have been made to the RealScan 7892
Factory Default Values and they program your repaired/replaced RealScan 7892 unit
accordingly.
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Identifying Program Defaults
Following are the default values that are set when you scan the Default programming
tag unless otherwise specified. The scanner beeps to indicate the Default setting.
Programming Mode Program Parameters Default Setting
Communications Protocol Protocol Depends on Worksheet 30 Default
Good Read Tone Volume Tone On/Off
Tone Frequency
Tone Length
On
High
75 Milliseconds (high)
Timers Lockout Time
Restart Lockout Timer
Active Time
Multiplier
450 Milliseconds
On
5 Minutes
Disable
Bar Codes – 1 UPC/EAN
Extend UPC-A to EAN-13
Extend UPC-E to UPC-A
Periodical Codes
Periodical Code Extension
Send Data
Enable
Disable
Disable
Disable
2-Digit & 5-Digit
Data As Decoded
Bar Codes – 2 Code 39
Minimum Characters Allowed
Full ASCII
Check Digit Present
Transmit Check digit
Allow Single Character Tags
Disable
4
Disable
Disable
Disable
Disable
Bar Codes – 3 Interleaved 2 of 5
Bar Code Length
Value 1
Value 2
Check Digit Present
Transmit Check Digit
Disable
Range Check
08
16
Disable
Disable
Bar Codes – 4 Code 128
Minimum data Characters
UCC 128
Disable
3
Disable
Bar Codes – 5 RSS Enable
Scans Required on RSS 14
Scans Required on RSS 14E
UCC-128 Emulation Mode
Disabled
1
1
Normal
Label Identifiers Identifier Type
Common Byte 1
Common Byte 2
Bar Code Type
Common Byte
Unique Identifier
Default Prefix
5D
42
Not Applicable
Not Applicable
Not Applicable
Additional Bar Code
Options
UPC Number System Character
ISBN Option
Send
Disable
RS-232 Parameters – 1 Baud Rate
Parity
Stop Bits And Character Length
Handshake
9600
Odd
1 Stop Bit, 7-Bit Character
RTS High, Wait For CTS
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Programming Mode Program Parameters Default Setting
RS-232 Parameters – 2 BCC Options
Interface Control
Check Digit
Retransmit On ACK/NAK Timer Expiration
Disable
None
Enable UPC-A, Enable EAN-8,
Enable EAN-13,
Disable UPC-E (0100/0300 RS-232)
Enable UPC-E (0200/0300 Wedge)
Enable
RS-232 Prefix Byte Prefix Byte
ASCII Code
Disable
02
RS-232 Terminator Byte Terminator Byte
ASCII Code
Second Terminator Byte
Enable
03
Disable
Communication Options Send IBM Tags in Hex or ASCII
Maintain or Drop OCIA Message Data
Retries on IBM Message
RS-232 Mode
RS-232 Delay
OCIA NCR Short Soft Reset
Hex
Unlimited
Normal
10 Milliseconds
Parity
Single Line Options Enable/Disable
Switch Action
Line Width
Enable with S. L. feature
Double Position
Wide
Parameter Version Number
0000
Wedge Options Country Code
Caps Lock
Number Lock & Keypad
Inter Character Delay
United States
On
Keypad not used
Every 4ms
Using the Programming Worksheets
The Programming Worksheets that follow provide a convenient method of defining
your RealScan 7892 program before loading it into the scanner. Each worksheet relates
to a specific programming mode. Circle your selections and changes on the
Worksheets. Save this information for future use should it be necessary to re-enter this
program.
Most of the programming options have defaults that are determined at the factory. A
bolded box around an entry selection specifies it as the default value. Scanning the
Default tag as the first tag after applying power to the RealScan 7892 sets the
parameters to these values. The scanner also indicates via beeps the Default setting.
Enter the program into your scanner by scanning the proper sequence of programming
tags found in the NCR Scanner Programming Tags book (BST0-2121-74). Following are
the three major steps to programming your scanner.
1. Enter the Base Programming State by scanning the Programming Mode tag as the
first tag after applying power to your RealScan 7892.
2. Select a Programming Worksheet and enter its parameter data by scanning the Hex
tags identified for that Programming Worksheet. Repeat this for each worksheet.
3. Save your program by scanning the Save and Reset Tag.
Caution: Some host terminals can corrupt your program if they are running and are
connected to the RealScan 7892 while you are entering a program. Either turn off the
host terminal or disconnect the interface cable from the host terminal before entering
your program.
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Note: In most instances the factory determined defaults are the correct parameter
settings. Normally you only need to change a few of these parameters and do not need
to enter all the Programming Worksheets. When programming your scanner, first set
all the parameters to default values by scanning the Default tag, then make any
necessary changes to the appropriate parameters. If you need to change the Default
protocol, program that first.
Programming Worksheets
3 0 Default Settings
OCIA
NCR Short
0
B
OCIA
NCR Long
1
OCIA
Non-NCR Short
2
IBM 468x
Select
Address 4A
Slot Scanner
Hex Data
3
IBM 468x
Select
Address 4B
(1520 BCR)
ASCII Data
4
RS-232
7892-0100
7892-0200
5
IBM 468x
Select
Address 4B
(HHBCR)
ASCII Data
6
Wedge
7892-0200
7892-0300
7
19341-A
Protocol
1 0 Communications Protocol
OCIA
NCR Short
0
OCIA
NCR Long
1
OCIA
Non-NCR Short
2
IBM 468x
Select
Address 4A
Slot Scanner
Hex Data
3
IBM 468x
Select
Address 4B
(1520 BCR)
ASCII Data
4
RS-232
7892-0100
7892-0200
5
IBM 468x
Select
Address 4B
(HHBCR)
ASCII Data
6
19321-A
Protocol
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