User Guide
Table Of Contents
- 2020/3820 User's Guide
- Getting Started
- About This Manual
- Unpacking the System
- Models
- Cordless System: Main Components
- About the Battery
- Base Charge Mode
- Linking Scanner to Base
- Scanner Modes
- Single Scanner Operation
- Multiple Scanner Operation
- Scanner Name
- Scanner Report
- Application Work Groups
- Resetting the Standard Product Default Settings: Current Application Work Group
- Resetting the Standard Product Default Settings: All Application Work Groups
- Using the Scanner with Bluetooth Devices
- Out-of-Range Alarm
- Data Accumulation Mode
- Beeper and LED Sequences and Their Meaning
- Basic Operation of the Cordless System
- Connecting the Base When Powered by Host (Keyboard Wedge)
- Reading Techniques
- Resetting the Standard Product Defaults
- Plug and Play
- Keyboard Wedge Connection
- IBM 4683 Ports 5B, 9B, and 17 Interface
- Connecting the Base with USB
- Connecting the Base with Serial Wedge
- Terminal Interfaces
- Output
- Data Editing
- Data Formatting
- Symbologies
- Introduction
- All Symbologies
- Message Length
- Codabar
- Code 39
- Interleaved 2 of 5
- Code 93
- Straight 2 of 5 Industrial
- Matrix 2 of 5
- Code 11
- Code 128
- Telepen
- UPC A
- UPC-A/EAN-13 with Extended Coupon Code
- UPC E0 and UPC E1
- EAN/JAN 13
- EAN/JAN 8
- MSI
- Plessey Code
- RSS Limited
- RSS Expanded
- EAN.UCC Emulation
- China Post Code
- Korea Post Code
- PosiCode A and B
- Codablock F
- Code 16K
- Code 49
- Interface Keys
- Utilities
- To Add a Test Code I.D. Prefix to All Symbologies
- Reset Scanner
- Show Software Revision
- Show Data Format
- Scanner Report
- Scanner Address
- Base Address
- Resetting the Standard Product Default Settings: Current Application Work Group
- Resetting the Standard Product Default Settings: All Application Work Groups
- Temporary Visual Xpress Configuration
- Visual Xpress
- Serial Programming Commands
- Product Specifications
- Maintenance
- Customer Support
2020/3820 User’s Guide 2 - 11
RS-232 Handshaking
RS-232 Handshaking allows control of data transmission from the scanner using
software commands from the host device. CTS/RTS operates in mode 2. When
this feature is turned
Off
, no data flow control is used. When Data Flow Control
is turned
On
, the host device suspends transmission by sending the XOFF
character (DC3, hex 13) to the scanner. To resume transmission, the host sends
the XON character (DC1, hex 11). Data transmission continues where it left off
when XOFF was sent.
Default = RTS/CTS, XON/XOFF and ACK/NAK Off.
Host ACK Selection
Some applications require that the host terminal (or server) approve or reject
incoming bar code data and notify the operator of these actions. These
applications require that the host maintain control over the response indicators
emitted from the source scanner. Turning the Host ACK selection on, configures
the cordless system scanners to respond to commands from the host system.
The following criteria must be met for the Host ACK to work correctly:
• The cordless system must be configured for “Host Port RS-232” (Terminal ID
= 000)
• RTS/CTS is defaulted off. You must enable it if the host system requires it.
• Host ACK must be enabled (page 2-12).
• System performance degrades when using Host ACK at rates lower than
9600.
• The host terminal software must be capable of interpreting the bar code data,
make decisions based on the data content, and send out appropriate escape
commands to the source scanner.
Escape commands are addressed to the source scanner via “Application Work
Groups.” Once a command is sent, all scanners in a group respond to that
command. Because of this situation, it is recommended that each scanner is
assigned to its own group in host ACK mode.
RTS/CTS On
* XON/OFF Off
* RTS/CTS Off
XON/XOFF On
ACK/NAK On
* ACK/NAK Off