Glossary - 9
Symbology.
The structural rules and conventions for representing data within a particular bar code type (e.g. UPC/EAN,
Code 39, PDF417, etc.).
T
TCP/IP.
(Transmission Control Protocol/Internet Protocol) A communications protocol used to internetwork dissimilar
systems. This standard is the protocol of the Internet and has become the global standard for communications. TCP
provides transport functions, which ensures that the total amount of bytes sent is received correctly at the other end.
UDP is an alternate transport that does not guarantee delivery. It is widely used for real-time voice and video
transmissions where erroneous packets are not retransmitted. IP provides the routing mechanism. TCP/IP is a routable
protocol, which means that all messages contain not only the address of the destination station, but the address of a
destination network. This allows TCP/IP messages to be sent to multiple networks within an organization or around the
world, hence its use in the worldwide Internet. Every client and server in a TCP/IP network requires an IP address, which
is either permanently assigned or dynamically assigned at startup.
Telnet.
A terminal emulation protocol commonly used on the Internet and TCP/IP-based networks. It allows a user at a
terminal or computer to log onto a remote device and run a program.
Terminal Emulation.
A “terminal emulation” emulates a character-based mainframe session on a remote non-mainframe
terminal, including all display features, commands and function keys. The VC5000 Series supports Terminal Emulations
in 3270, 5250 and VT220.
Terminate and Stay Resident (TSR).
A program under DOS that ends its foreground execution to remain resident in
memory to service hardware/software interrupts, providing background operation. It remains in memory and may
provide services on behalf of other DOS programs.
TFTP.
(Trivial File Transfer Protocol) A version of the TCP/IP FTP (File Transfer Protocol) protocol that has no directory or
password capability. It is the protocol used for upgrading firmware, downloading software and remote booting of diskless
devices.
Tolerance.
Allowable deviation from the nominal bar or space width.
Transmission Control Protocol/Internet Protocol.
See
TCP/IP.
Trivial File Transfer Protocol.
See
TFTP.
TSR.
See
Terminate and Stay Resident
.
U
UDP.
User Datagram Protocol. A protocol within the IP protocol suite that is used in place of TCP when a reliable delivery
is not required. For example, UDP is used for real-time audio and video traffic where lost packets are simply ignored,
because there is no time to retransmit. If UDP is used and a reliable delivery is required, packet sequence checking and
error notification must be written into the applications.
UPC.
Universal Product Code. A relatively complex numeric symbology. Each character consists of two bars and two
spaces, each of which is any of four widths. The standard symbology for retail food packages in the United States.
Summary of Contents for Symbol DS3408
Page 1: ...Symbol DS3408 Product Reference Guide ...
Page 2: ......
Page 3: ...Symbol DS3408 Product Reference Guide 72E 68456 08 Revision A April 2009 ...
Page 6: ...iv DS3408 Product Reference Guide ...
Page 16: ...xiv Symbol DS3408 Product Reference Guide ...
Page 20: ...xviii Symbol DS3408 Product Reference Guide ...
Page 48: ...3 8 Symbol DS3408 Product Reference Guide ...
Page 62: ...4 14 Symbol DS3408 Product Reference Guide ...
Page 68: ...5 6 Symbol DS3408 Product Reference Guide ...
Page 92: ...6 24 Symbol DS3408 Product Reference Guide ...
Page 138: ...8 22 Symbol DS3408 Product Reference Guide ...
Page 144: ...9 6 Symbol DS3408 Product Reference Guide ...
Page 166: ...11 14 Symbol DS3408 Product Reference Guide ...
Page 168: ...12 2 Symbol DS3408 Product Reference Guide ...
Page 254: ...13 86 Symbol DS3408 Product Reference Guide ...
Page 264: ...14 10 Symbol DS3408 Product Reference Guide ...
Page 290: ...15 26 Symbol DS3408 Product Reference Guide Numeric Keypad continued 7 8 9 Cancel ...
Page 336: ...15 72 Symbol DS3408 Product Reference Guide Send ALT Characters continued Send Alt Send Alt ...
Page 357: ...Advanced Data Formatting 15 93 Alphanumeric Keyboard Space Dash ...
Page 358: ...15 94 Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued ...
Page 359: ...Advanced Data Formatting 15 95 Alphanumeric Keyboard continued ...
Page 360: ...15 96 Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued _ Underscore ...
Page 362: ...15 98 Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued 6 7 8 9 A B C ...
Page 363: ...Advanced Data Formatting 15 99 Alphanumeric Keyboard continued D E F G H I J ...
Page 364: ...15 100Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued K L M N O P Q ...
Page 365: ...Advanced Data Formatting15 101 Alphanumeric Keyboard continued R S T U V W X ...
Page 367: ...Advanced Data Formatting15 103 Alphanumeric Keyboard continued d e f g h i j ...
Page 368: ...15 104Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued k l m n o p q ...
Page 369: ...Advanced Data Formatting15 105 Alphanumeric Keyboard continued r s t u v w x ...
Page 370: ...15 106Symbol DS3408 Product Reference Guide Alphanumeric Keyboard continued y z ...
Page 380: ...A 10 Symbol DS3408 Product Reference Guide ...
Page 388: ...B 8 Symbol DS3408 Product Reference Guide ...
Page 389: ...Appendix C Sample Bar Codes Code 39 UPC EAN UPC A 100 123ABC 0 12345 67890 5 ...
Page 391: ...Sample Bar Codes C 3 PDF417 Data Matrix Maxicode ...
Page 392: ...C 4 Symbol DS3408 Product Reference Guide QR Code US Postnet UK Postal ...
Page 396: ...D 4 Symbol DS3408 Product Reference Guide ...
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