1-10

From S to T

safe place
A location where the data will not be lost. Storing the message to disk is storing it in a safe place. Receiving confirmation from the application program that it has responsibility for the transaction is considered a safe place.

scan
1. To read a bar code with a device known as a scanner, which converts optical information into electrical signals. 2. The search for a symbol that is to be optically recognized. Movement of a light source over a bar code and recognition of the reflective qualities of the returned signal.

scan line
The location on the conveyor belt that is viewed by the camera. The scan line can be found by using the oscilloscope, which is provided in the software. The oscilloscope trace identifies anything that is in the scan line.

scannable
A symbol that can be successfully scanned and correctly decoded.

scanner
1. An electronic device that converts printed bar code into electrical signals. 2. A device that examines a spatial pattern, one part after another, and generates analog or digital signals corresponding to the pattern. Scanners are often used in mark sensing, pattern recognition, character recognition, and bar code recognition. The scanner converts bar code symbols to electrical signals for input to a bar code reader decoder for processing and subsequent output through a data communications interface.

Scanner mode
Defines how the scanner operates when the trigger is pulled. There are two types of modes: One-Shot mode and Automatic mode.

scanner port
The modular connector on the top of the JANUS reader. Also called the input port. This port may be configured as a scanner port, where a scanner device may be attached, or as COM2 if you use the Intermec COM2 Hardware Adapter.

scanner timeout
Maximum time the laser is on. The laser will automatically turn off if timeout occurs before the trigger is released.

scratch drive
The physical hard drive that you use to build the JANUS reader's drive images.

screen
Any graphical display of data. A screen can be a dialog box, list box, or window.

screen capture
A procedure used to create a bitmap of a display from the 7350 software.

screen event
In screen mapping, the operation that is performed on the host screen when data collection starts. There are three types of screen events: mapping data (from a transaction field or a static string) onto a host field, taking actions when a region is detected or not detected, and sending a message to the source of the transaction.

screen mapping
An application that that allows you to map data fields from a smaller reader screen to larger host application screens. This image can be stored in the host, in the controller, or on the local device.

screen message
In screen mapping, a user-defined string that is sent to the source of the transaction after certain screen events.

script file
A file that provides instructions for navigating around host application screens. It also provides instructions for mapping transaction fields from the reader to the host application screens.

security identification
Defines the password for secured transmission and receipt of data between devices in the wireless network. To communicate, each access point and RF terminal must have matching security IDs.

SEL
Select character. Sent by the host to request if the reader can accept data. For User Defined Multi-Drop protocol, a unique character should be defined for each reader on a data line.

Select Sequence command
A controller command to request if a polled device can receive data.

selective transfer
A procedure that copies selected formats, fonts, graphics, or pages stored in the memory of one printer to the memory of another.

self-checking
Characteristic of a bar code symbology that, without the use of a check digit, allows the bar code to be decoded without an error.

self-checking bar code
Self-checking bar code uses an algorithm that can be applied against each character so substitution errors can only occur if two or more independent printing defects appear within a single character.

self-strip
An optional device for the printer that presents each label after it is printed, with the backing removed so it may be applied immediately.

Self-Strip mode
An operationing mode for the 4100 printer that presents each label after it is printed, with the backing removed so it may be applied immediately. This requires the installation of the optional present sensor.

self-test
The search for malfunctions in the electrical or mechanical systems of a device by its own actions.

sensitivity
The responsiveness to heat of thermal media or thermal transfer ribbon. Sensitivity is determined by the time required for a unit measure of heat to affect the media or ribbon.

SER
Substitution error rate. The rate of occurrence of incorrect characters from an automatic identification system.

serial
A communication scheme in which the bits of a byte are transferred one at a time. Often serial transmission is used to link hosts to terminals and PCs to printers.

serial communications
With serial communications, data is transmitted one bit at a time over a single line from one computer to another. Often serial communications link hosts to terminals and PCs to printers.

serial communications parameters
Parameters that control serial communications from one device to another, such as baud rate and parity.

serial port
A link between a microcomputer and a peripheral device through which data is transmitted.

server
A computer that is configured to provide services to the network, such as files and programs. See also client.

session
A single runtime copy of a 3270 or 5250 terminal emulator, through which a host application can be accessed.

session pooling
The controller establishes one 3270 or 5250 terminal session upline to an IBM host. Then, multiple 3270 or 5250 devices downline from the controller can log in to the controller and send data asynchronously to the host. Each device does not need to establish a separate terminal session.

set illumination screen
A screen in the 7350 software that is used to calibrate the lighting after lamps have been replaced. This screen contains an oscilloscope that displays objects in the scan line.

setup utility
A screen in the 7350 software that contains commands used for calibrating the 7350. This screen contains an oscilloscope that displays objects in the scan line.

SFM
Shop floor management. The part of the factory data environment that is responsible for the daily up-to-the-minute tracking of materials and labor. It manages and generates reports pertaining to scheduling and dispatch of materials, labor, and work order status.

shell out feature
Feature that allows you to go to the DOS command line without exiting the installation utility.

shield
A covering on the light bar that protects the lamps.

short circuit
To connect two or more parts together electrically. See also open circuit.

show-through
The property of a substrate that permits underlying markings to be seen.

SIMM
Single inline memory module. A printed circuit board that holds several semiconductor memory chips and is used to add memory to the Access Point.

skew
Rotation of a bar code symbol about an axis parallel to the symbol's length.

skip
To move the paper to the next label in your printer.

SNA
System network architecture. This is IBM's data communication architecture defining levels of protocols for communications between terminals and applications and between programs.

SNMP
Simple network management protocol. A protocol used to manage the network activity of different devices.

soft font
A file stored in the printer to provide the ability to print text using fonts that are not resident in the printer.

software
Coded instructions that direct the operation of a computer. A set of such instructions for accomplishing a particular task is referred to as a program. See also firmware.

solicitation event
A communication event that initiates data transmission. The solicitation can be either a poll or select sequence. To enable solicitation, define POL to be other than NULL.

SOM
Start of message character. The first character in messages sent to or received from the host.

SOP
Start of program block character. Sent by the host at the beginning of a block of IRL program statements.

space
The light element of a printed bar code symbol. The white lines.

space width
The thickness of a space measured from the edge closest to the symbol start character to the trailing edge of the same space.

special keys
Keys that perform specific functions within the user interface portion of DCM. The Page Up and Page Down keys are special keys.

spectra response
The variation in sensitivity of a reading device or the variation in reflectivity of a test surface to light to different wavelengths.

specular reflection
The abrupt change in direction of a light beam at an interface between two dissimilar media so that the light beam returns into the medium of origin. Reflection from a smooth surface is specular. Reflection from a rough surface is diffuse.

spot
1. The presence of ink or dirt in a space. 2. The area on a bar code symbol that is being examined by an input device at any given point of time.

spread spectrum
A radio data transmission modulation technique by which the transmitted signal is spread over a bandwidth wider than the information bandwidth.

SPX
Sequenced packet exchange protocol. This protocol provides a method for two workstations or applications to communicate across the network. SPX works with IPX to deliver the messages. However, SPX guarantees the delivery of the messages and maintains the order of messages on the packet stream.

SRAM drive
Static RAM. See RAM drive.

SRAM PC card
A type of memory PC card that provides additional disk storage space, not more executable conventional memory, on the reader. An SRAM card has a lithium battery to back up data for the life of the battery.

STAC
Symbol Technical Advisory Committee to the Uniform Code Council, Inc. See Uniform Code Council (UCC).

Standard protocol
A communications protocol capable of controlling communications between two devices connected by a single data communication line.

standard upgrade
The process that allows you to make sure your JANUS reader has the most current version of firmware and that it has the default configuration.

standoff
A plastic peg used to support a PCB at a distance from the surface on which the PCB is mounted.

Start and Stop characters
A special bar code character that provides the scanner with start and stop reading instructions as well as a scanning direction indicator. The start character is normally at the left end of a horizontally oriented symbol (bar code label). The stop character is normally at the right end of a horizontally oriented symbol. For Code 39, the asterisk (*) character is used. Depending on the software they use, users may not have to enter the start and stop codes when they create their own bar code labels.

status
The state, condition, or current value of a device, program, or command.

stop bits
A bit that signals the end of a character. One of the serial communications parameters.

Storage mode
A power management mode on the reader that lets you preserve the life of the lithium backup battery. Place the reader in Storage mode if you will not use the reader for 1 week or more. While the reader is in Storage mode, the NiCad battery pack must be removed; otherwise, the reader slowly drains the battery pack and backup battery. All data in conventional memory is lost when the reader enters Storage mode.

store and forward
A method where messages are temporarily stored in the controller before they are transmitted to their destination. It is used when the upline network or host application is temporarily stopped.

subnet mask
A mask that is used in the IP protocol to separate the subnet address from the local IP address. The IP protocol performs a bit-wise AND on the IP address and the subnet mask. Each address segment represents one byte, where 255 converts to FF hex. For example, if the IP address is 192.009.150.184 and the subnet mask is 255.255.255.0, the subnet address is 192.009.150.

subnetwork
A section of a large network that functions as an independent network, but does not appear separate to remote networks.

substitution error
A erroe in encoding, reading, or key entry, causing incorrect information to be substituted for the character should have been entered. Example: correct information -- 1, 2, 3, 4; substitution -- 1, 2, 3, 5.

substrate
The surface on which a bar code symbol is printed.

supply-chain management
Using information technology to give automated intelligence to a network of vendors, suppliers, manufacturers, distributors, retailers, and other trading partners. The goal is for each player in the supply chain to conduct business with the best and latest information from everyone else in the chain, balancing supply and demand. Effective management of the supply chain allows a company to move product from the point of origin to that of consumption in the least amount of time at the smallest cost.

Suspend mode
The mode the terminal or reader enters when you press q to turn it off. In Suspend mode, the terminal or reader saves all memory and turns off the power to most of the hardware. Contrast with resume.

symbol
See bar code symbol.

symbol density
See bar code density.

symbol length
The distance between the outside edges of the quiet zones on the two ends of a bar code symbol.

symbology
A scheme for encoding data as bar code. Code 39, Interleaved 2 of 5, and Codabar are examples of different symbologies.

synchronous
A data communication scheme that transmits data in reference to a master clock signal. The clock can be a separate signal or can be part of the data.

syntax
The way in which commands or data are put together.

system administrator
The person responsible for installing, configuring, and maintaining the networks and computers in your company.

systems integrators
Companies that connect computers, instrumentation, and equipment to share data or applications with other components in the same or other functional areas. Systems integrators often provide consulting services and hardware sales as well.

TCP
Transmission control protocol. This protocol provides a method for creating a connection-oriented, reliable, error-free, full-duplex, byte-stream communication between two processes. See also IP.

TE Configuration Menu
A menu-driven application that lets you configure 3270, 5250, or VTXXX/ANSI terminal emulation parameters. You can access the TE Configuration Menu at any time during a terminal emulation session.

Telegram mode
An output mode that can communicate with Kosan Krisplant® sorters.

Telnet
The TCP/IP remote terminal protocol for connection to a login server.

terminal emulation
TE. A device that is running terminal emulation looks like the terminal. For example, it uses no CPU, no RAM, and no hard disk. Two general classifications are devices running in Character mode and those running in Block mode. Character mode devices emulate VTXXX terminals where a character travels all the way from the host to a device and back. Block mode devices emulate 3270 or 5250 terminals where entire screens are sent to a device, the user fills in all the data fields on the device, and sends the entire screen back to the host.

terminal IP address
Identifies the IP address assigned to the TRAKKER 2425 terminal. The IP address you set on the terminal must match the address that is set on the Model 200 Controller.

terminal license
A license that you can purchase from Intermec that determines how many devices you can simultaneously use to communicate with the Model 200 Controller.

terminal session
A terminal session is an active communication link between a device and the host. See also session pooling.

terminal template
A file that contains a menu of screens for data collection devices. The template is downloaded to the devices from the Model 200 Controller or the devices can use the reader program to request the template.

terminal template application
An application that runs on the data collection device that requests and runs the templates for 3270 or 5250 screen mapping.

text
Human-readable alphanumeric characters, as opposed to machine-readable bar codes.

Text mode
One of two display modes on the reader. By default, the reader uses Text mode and you can set the display size to 25 x 80, 16 x 20, 8 x 20, 16 x 10, and 8 x 10. If your application only recognizes DOS mode, you must use a display size of 25 x 80 or 25 x 40. The other display sizes are not DOS standard and are for use with custom applications. Text mode also supports two character attributes: blinking and reverse video. Contrast with graphics mode.

thermal transfer
A method of printing by which heat from the printhead melts ink from the ribbon onto media. The ink adheres to the media as it cools.

tilt
Rotation of a bar code symbol about an axis perpendicular to the substrate.

time append
A controller feature that stamps the time to incoming messages at specified intervals. The time appears with the messages as they are received at the controller.

time broadcast
A controller feature that broadcasts the current time (may include a short message) to the data collection devices. The time is updated at specified intervals.

timeout
A defined time allowed for an event after which an alternative action is taken.

timeout delay
The time the reader waits between received characters before an I/O (input/output) error occurs.

Token Ring
A type of LAN that transfers data at either 4 or 16 Mbits/s. It is a network transport technology in which a token is passed around a ring topology.

top of form
The point where printing can start on a label. Separated from the edge of the label by the margin.

traditional OCR
The first form of two-dimensional OCR developed, using the stylized OCR-A and OCR-B fonts.

TRAKKER Antares 2400 Menu System
A menu-driven application that lets you configure the terminal, view system information, and run diagnostics. You can access the TRAKKER 2400 Menu System while running any application.

transaction
1. Individual event (such as receipts, issues, and transfers) reported to the computer system. 2. A group of one or more message fields. 3. A transaction is made up of a header and a group of fields. For example, a work order transaction might have a transaction type and three fields consisting of a work order number, part number, and due date.

transaction manager
See reader.

Trigger mode
The conditions that turn the laser on and off. See also Edge Trigger mode and Level Trigger mode.

TSR program
Terminate and stay resident program. A DOS program that remains loaded in conventional memory after you have terminated it. You must explicitly unload the TSR if you want to free the conventional memory it is using.

turnaround delay
The amount of time a polled device waits after receiving a character before transmitting any response to the controller.

twinaxial
A type of cable used to connect the controller directly to an IBM host. Twinaxial cables consist of an outer layer of insulation, an outer conductor, another insulating layer, and two side-by-side center conductors. See also coaxial.

Two of Five Code
See 2 of 5 Code.

TX EOM1
Transmit end of message first character. Enables or disables the transmission of the TX EOM characters and/or indicates the end of a data block in the data transmission event. Older Intermec products may not include these protocol characters. Newer generation online reader products implement these protocol acronyms.

TX EOM2
Transmit end of message second character. Enables or disables the second character of the TX EOM and indicates the end of a data block in the data transmission event. Older Intermec products may not include these protocol characters. Newer generation online reader products implement these protocol acronyms.