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 1 - 15
3820 LED Sequences and Their Meaning
2020-5B LED Sequences and Their Meaning
The base contains a red LED that indicates the status of the unit and verifies its
communication with the host system and a green LED that indicates scanner
battery charge condition.
The tables below list the indication and cause of the LED illumination and beeps
for the 2020-5B.
LED Indication Beeper Indication Cause
Normal Operation
Red Flash None Battery low
Green Flash 1 beep
Successful communication
or linking
Red, blinking 3 beeps Failed communication
Menu Operation
Green Flash 2 beeps Successful menu change
Red, blinking 3 beeps Unsuccessful menu change
System Condition System Status Indicator (Red LED)
Power On/System Idle LED is on
Power On/Diagnostic Error Blink LED for long duration, pulsing indefinitely
Receiving Data (2020-5B only)
Blink LED for short duration in multiple pulses. Occurs
while transferring data to/from the RF module or the Host
port.
Base requests status from its
own Bluetooth radio
Blink LED once (occurs approx. every 30 seconds)