Marson MT820 User manual

MT820 User’s Manual V1.0
MT820
2D Wireless Scanner
User’s Manual
Version 1.0 DATE: 2023/06/07

MT820 User’s Manual V1.0
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Table of Content
CHAPTER 1 INTRODUCTION............................................................................................................................................. 7
SPECIFICATIONS ............................................................................................................................................................................ 7
BEEPER INDICATION....................................................................................................................................................................... 9
LED INDICATION .......................................................................................................................................................................... 10
CHAPTER 2 GENERAL SETTINGS.................................................................................................................................. 11
BARCODE CONFIGURABILITY (SETUP CODE).............................................................................................................................. 11
FACTORY DEFAULT ...................................................................................................................................................................... 11
CHECK VERSION .......................................................................................................................................................................... 11
GOOD READ INDICATOR .............................................................................................................................................................. 12
Beep Tone ............................................................................................................................................................................. 12
Beep Mode ............................................................................................................................................................................ 12
Vibrator................................................................................................................................................................................... 12
DATA FORMAT.............................................................................................................................................................................. 13
UTF-8/Shift-JIS to Unicode Conversion ............................................................................................................................ 13
HT/CR/ESC Converts to TAB/ENTER/ESCAPE ............................................................................................................. 13
Function Code Conversion.................................................................................................................................................. 14
Control Code Output Method.............................................................................................................................................. 14
Numeric Key.......................................................................................................................................................................... 16
Capital Lock Mode................................................................................................................................................................ 16
Surround GS1 Application Identifiers (AI’s) with Parentheses....................................................................................... 17
IMAGING SETTINGS ...................................................................................................................................................................... 17
1D Inverse Barcode.............................................................................................................................................................. 17
2D Inverse Barcode.............................................................................................................................................................. 17
CHAPTER 3 INTERFACE.................................................................................................................................................. 18
BT HID......................................................................................................................................................................................... 18
Getting Connected................................................................................................................................................................ 18
BT SPP........................................................................................................................................................................................ 19
Getting Connected................................................................................................................................................................ 19
Set SPP Pincode .................................................................................................................................................................. 19
GENERAL BLUETOOTH SETTINGS................................................................................................................................................ 20
Power Off Timeout................................................................................................................................................................ 20
Shut Down ............................................................................................................................................................................. 20
iOS Touch Keyboard............................................................................................................................................................ 21
Set Bluetooth Device ID....................................................................................................................................................... 21
Check Bluetooth Firmware Version ................................................................................................................................... 22
Check Device MAC Address............................................................................................................................................... 22
Check Host MAC Address................................................................................................................................................... 22
Check Battery Life ................................................................................................................................................................ 23
ScanLink ................................................................................................................................................................................ 23

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MEMORY MODE ........................................................................................................................................................................... 24
Delete Last Record............................................................................................................................................................... 24
Clear All Record.................................................................................................................................................................... 24
Data Format........................................................................................................................................................................... 25
Field Separator...................................................................................................................................................................... 25
Date Format........................................................................................................................................................................... 26
Time Format .......................................................................................................................................................................... 26
Date & Time Setup ............................................................................................................................................................... 27
USB HID...................................................................................................................................................................................... 28
Keyboard Layout................................................................................................................................................................... 28
Intercharacter Delay............................................................................................................................................................. 30
Interblock Delay .................................................................................................................................................................... 30
USB VCP .................................................................................................................................................................................... 31
BCC (Binary Check Character) .......................................................................................................................................... 31
CHAPTER 4 READING MODE.......................................................................................................................................... 32
TRIGGER MODE ........................................................................................................................................................................... 32
TOGGLE MODE............................................................................................................................................................................. 32
CONTINUOUS MODE .................................................................................................................................................................... 32
BATCH MODE ............................................................................................................................................................................... 33
AUTO-SENSING MODE ................................................................................................................................................................. 33
Trigger / Toggle / Auto-sensing Mode – LED Auto-Off Timeout.................................................................................... 33
CHAPTER 5 DATA FORMAT............................................................................................................................................ 34
CODE ID....................................................................................................................................................................................... 34
SET ID.......................................................................................................................................................................................... 34
DATA LENGTH .............................................................................................................................................................................. 36
PREAMBLE.................................................................................................................................................................................... 37
POSTAMBLE.................................................................................................................................................................................. 37
Clear Preamble/Postamble ................................................................................................................................................. 37
TERMINATOR ................................................................................................................................................................................ 38
CHAPTER 6 SYMBOLOGIES............................................................................................................................................ 39
GENERAL SETTINGS .................................................................................................................................................................... 39
UPC-A ......................................................................................................................................................................................... 39
Enable/Disable UPC-A......................................................................................................................................................... 39
Check Digit ............................................................................................................................................................................ 40
Lead Digit (System Number)............................................................................................................................................... 40
Supplement............................................................................................................................................................................ 40
UPC-A Expand to EAN-13 .................................................................................................................................................. 40
UPC-E ......................................................................................................................................................................................... 41
Enable/Disable UPC-E......................................................................................................................................................... 41
UPC-E System Number....................................................................................................................................................... 41

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Check Digit ............................................................................................................................................................................ 41
Lead Digit (System Number)............................................................................................................................................... 41
Supplement............................................................................................................................................................................ 42
UPC-E Expand to UPC-A .................................................................................................................................................... 42
EAN-8.......................................................................................................................................................................................... 42
Enable/Disable EAN-8 ......................................................................................................................................................... 42
Check Digit ............................................................................................................................................................................ 43
Supplement............................................................................................................................................................................ 43
EAN-8 Expand to EAN-13 (Zero Extension)..................................................................................................................... 43
EAN-13........................................................................................................................................................................................ 44
Enable/Disable EAN-13 ....................................................................................................................................................... 44
Check Digit ............................................................................................................................................................................ 44
Supplement............................................................................................................................................................................ 44
ISBN ....................................................................................................................................................................................... 45
ISSN ....................................................................................................................................................................................... 45
CODE 128 .................................................................................................................................................................................... 46
Enable/Disable Code 128.................................................................................................................................................... 46
Code 128 Min/Max Length .................................................................................................................................................. 46
GS1-128(UCC/EAN 128).......................................................................................................................................................... 47
Enable/Disable GS1-128 ..................................................................................................................................................... 47
GS1-128 Min/Max Length ................................................................................................................................................... 47
CODE 39 ...................................................................................................................................................................................... 48
Enable/Disable Code 39...................................................................................................................................................... 48
Verification ............................................................................................................................................................................. 48
Start/Stop ............................................................................................................................................................................... 48
Full ASCII Code39................................................................................................................................................................ 49
Code39 Min/Max Length ..................................................................................................................................................... 49
CODE 32 ...................................................................................................................................................................................... 50
Enable/Disable Code 32...................................................................................................................................................... 50
Leading/Tailing...................................................................................................................................................................... 50
CODE 93 ...................................................................................................................................................................................... 51
Enable/Disable Code 93...................................................................................................................................................... 51
Code 93 Min/Max Length .................................................................................................................................................... 51
CODE 11 ...................................................................................................................................................................................... 52
Enable/Disable Code 11...................................................................................................................................................... 52
Verification ............................................................................................................................................................................. 52
Check Digit ............................................................................................................................................................................ 52
Code 11 Min/Max Length .................................................................................................................................................... 53
CODABAR (NW-7)........................................................................................................................................................................ 53
Enable/Disable Codabar...................................................................................................................................................... 53
Verification ............................................................................................................................................................................. 54
Start/Stop ............................................................................................................................................................................... 54

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Codabar Min/Max Length .................................................................................................................................................... 55
INTERLEAVED 2OF 5.................................................................................................................................................................... 55
Enable/Disable Interleaved 2 of 5 ...................................................................................................................................... 55
Verification ............................................................................................................................................................................. 55
Interleaved 2 of 5 Min/Max Length..................................................................................................................................... 56
MATRIX 2OF 5............................................................................................................................................................................. 57
Enable/Disable Matrix 2 of 5 ............................................................................................................................................... 57
Verification ............................................................................................................................................................................. 57
Matrix 2 of 5 Min/Max Length.............................................................................................................................................. 58
INDUSTRIAL 2OF 5....................................................................................................................................................................... 59
Enable/Disable Industrial 2 of 5.......................................................................................................................................... 59
Verification ............................................................................................................................................................................. 59
Industrial 2 of 5 Min/Max Length ........................................................................................................................................ 60
STANDARD 2OF 5(IATA)............................................................................................................................................................ 61
Enable/Disable Standard 2 of 5.......................................................................................................................................... 61
Verification ............................................................................................................................................................................. 61
Standard 2 of 5 Min/Max Length ........................................................................................................................................ 62
MSIPLESSEY............................................................................................................................................................................... 63
Enable/Disable MSI Plessey............................................................................................................................................... 63
Verification ............................................................................................................................................................................. 63
Check Digit ............................................................................................................................................................................ 63
MSI Plessey Min/Max Length ............................................................................................................................................. 64
UK PLESSEY ................................................................................................................................................................................ 65
Enable/Disable UK Plessey ................................................................................................................................................ 65
Verification ............................................................................................................................................................................. 65
GS1 DATABAR............................................................................................................................................................................. 65
Enable/Disable GS1 DataBar ............................................................................................................................................. 65
GS1 DATABAR LIMITED............................................................................................................................................................... 66
Enable/Disable GS1 DataBar Limited ............................................................................................................................... 66
GS1 DATABAR EXPANDED.......................................................................................................................................................... 66
Enable/Disable GS1 DataBar Expanded .......................................................................................................................... 66
COMPOSITE.................................................................................................................................................................................. 66
Enable/Disable Composite.................................................................................................................................................. 66
QR CODE ..................................................................................................................................................................................... 67
Enable/Disable QR Code .................................................................................................................................................... 67
MICRO QR CODE......................................................................................................................................................................... 67
Enable/Disable Micro QR Code.......................................................................................................................................... 67
DATA MATRIX............................................................................................................................................................................... 67
Enable/Disable Data Matrix................................................................................................................................................. 67
PDF417....................................................................................................................................................................................... 68
Enable/Disable PDF417 ...................................................................................................................................................... 68
MICROPDF417............................................................................................................................................................................ 68

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Enable/Disable MicroPDF417............................................................................................................................................. 68
AZTEC........................................................................................................................................................................................... 68
Enable/Disable Aztec ........................................................................................................................................................... 68
MAXICODE ................................................................................................................................................................................... 69
Enable/Disable MaxiCode ................................................................................................................................................... 69
HANXIN ........................................................................................................................................................................................ 69
Enable/Disable HanXin........................................................................................................................................................ 69
DOTCODE .................................................................................................................................................................................... 69
Enable/Disable DotCode ..................................................................................................................................................... 69
CHAPTER 7 APPENDIX .................................................................................................................................................... 70
APPENDIX -NUMBERS ................................................................................................................................................................. 70
APPENDIX -UPPER CASE ALPHABETS ........................................................................................................................................ 71
APPENDIX -LOWER CASE ALPHABETS........................................................................................................................................ 73
APPENDIX –CONTROL CODES .................................................................................................................................................... 75
APPENDIX –SYMBOLS ................................................................................................................................................................. 77
APPENDIX –FUNCTION KEYS ...................................................................................................................................................... 80
APPENDIX –NAVIGATION KEYS ................................................................................................................................................... 81
APPENDIX –MODIFIER KEYS ....................................................................................................................................................... 82
APPENDIX -ABORT ...................................................................................................................................................................... 83
APPENDIX -DEFAULT TABLE ....................................................................................................................................................... 84
APPENDIX -FACTORY ID AND AIM ID TABLE ............................................................................................................................. 89
APPENDIX -ASCII TABLE ............................................................................................................................................................ 91
VERSION HISTORY ........................................................................................................................................................... 95

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Chapter 1 Introduction
This user’s manual is dedicated to MT820, a portable 2D scanner that can send data to the host
up to 20 meters away. This economical, ergonomic pocket-sized wireless 2D barcode scanner is
a high efficient companion for users who work with laptops, tablets, smart phones and other
mobile devices with iOS®, Android®and Windows®.
Specifications
Optic & Performance
Light Source
White LED
Visible red LED
Sensor
640 x 480
Resolution
4mil/ 0.01mm (1D), 10mil/ 0.25mm (2D)
Scan Angle Horizontal 43°
Vertical 23°
Pitch Angle
±55°
Skew Angle
±55°
Roll Angle
360°
Print Contrast Ratio
10%
Width of Field
141mm (13Mil Code39)
NFC Pairing
Supported
Scan Button
(Trigger)
LED Indicator
Exit Window
Type-C USB Port
(with protective cover)
Function Button/
Toggle iOS keyboard

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Memory
2MB (20,000 barcodes)
Typical D.O.F
(Environment: 800 lux)
5 Mil Code 39 : 39 ~ 198mm
13 Mil UPC/EAN : 52 ~ 355mm
15 Mil QR Code : 30 ~ 250mm
6.67 Mil PDF417 : 41 ~ 165mm
10 Mil Data Matrix: 35 ~ 163mm
Physical Characteristics
Dimension
W27.5 x L68.4 x H16.2 mm
Weight
28g
Color MT820: Black
MT820M: White
Material
PC+ABS
Cable Type C(M) to USB A(M) Cable, 1.5M
Trigger
Scan Button, Function Button
Indicator
LED, Buzzer, Vibrator
Electrical
Operation Voltage
3.7 VDC ± 5%
Working Current
< 240mA
Standby Current
< 50mA
Battery
3.7V, 400mAh, Li-Polymer Battery
Number of Scan
(per full charge)
6000 scans
(1 scan/ 5 secs, Bluetooth connected)
Connectivity
Radio
Bluetooth 5.0 dual mode (Class 2)
Range
66 ft/ 20m (line of sight)
Interface/ Profile
BT HID
BT SPP
USB HID
USB VCP
Memory
User Environment
Operating Temperature
-10 ~ 50˚C
Storage Temperature
-20 ~ 60˚C
Humidity
0% ~ 95%RH (Non-condensing)
Drop Durability
1.5M
Sealing
IP42
Ambient Light
100,000 Lux (Sunlight)
1D Symbologies
Code 128, EAN-13, EAN8-, UPC-E, UPC-A,
ISBN, ISSN, Code 11, Interleaved 2 of 5,
Code 39, Code 93, Code 32, Codabar,

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Matrix 2 of 5, Industrial 2 of 5, Standard 2 of
5, Plessey, MSI Plessey, GS1 Databar,
Febraban, Composite
2D Symbologies
QR Code. Micro QR Code, PDF417,
MicroPDF417, Data Matrix, Aztec,
MaxiCode, HanXin, Dotcode
Regulatory
ESD Functional after 4KV contact, 8KV air
discharge
EMC/RF TELEC
Safety Approval
EN/IEC62471 (Exempt Group)
Environmental
WEEE, RoHS 2.0
Medical Compliance
(White version only)
JIS Z 2801
Beeper Indication
Beeper Status
Single beep
Good read
Single short beep The scanner reads a Code39 ASCII during
multi-step configuration
Two beeps
Wireless connection
The scanner successfully reads a
configuration barcode
Three beeps
Wireless disconnection
Three short beeps
The scanner reads a barcode while
disconnected
The scanner reads an unexpected barcode
during multi-step configuration. (Please
scan “
Abort
” and start over)
Memory Full
Four beeps (Hi-Lo-Hi-Lo)
Out of range / Poor connection
Five beeps
Low power

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LED Indication
LED Status
Off
Power off / Standby / Connected
Flashing green
Disconnected / Discoverable
One green flash
Good read
Flashing red
Low power
Solid red
Charging

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Chapter 2 General Settings
Barcode Configurability (Setup Code)
Scanning below configuration barcodes will allow/prohibit user to change settings by scanning
configuration barcodes in this manual.
Enable Barcode Configurability*
Disable Barcode Configurability
Factory Default
Scanning below configuration barcode will reset all parameters to factory default settings (the ones
with *asterisk mark)
Factory Default
Check Version
To check firmware version, please scan below configuration barcode.
Check Version

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Good Read Indicator
Beep Tone
Off
Beep Low (2.0KHz)
Beep Medium (2.7KHz)
Beep High (4.0KHz)*
Beep Mode
Normal*
Warning Beep Only
Mute
Vibrator
Off*
On

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Data Format
UTF-8/Shift-JIS to Unicode Conversion
Disable*
UTF-8 to Unicode
(Word)
Shift-JIS
(Notepad)
Shift-JIS to Unicode
(Word)
HT/CR/ESC Converts to TAB/ENTER/ESCAPE
Off*
On
Note:
1. By default, HT [$I], CR [$M] and ESC [%A] is transmitted as <0x09>, <0x0D> and <0x1B>
respectively.
2. When enabled, HT [$I], CR [$M] and ESC [%A] is transmitted as <TAB>, <ENTER> and
<ESCAPE> on keyboard respectively.

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Function Code Conversion
Off
On*
Note:
Once disabled, the scanner will output the original encoded data of the barcodes in Appendix -
Function/Navigation/Modifier Keys.
Control Code Output Method
Ctrl Mode* Alt Mode
Disable Output
Note:
Control code (0x01 ~ 0x1A) can be sent by two methods:
(1) Ctrl Mode:
A barcode of “A<HT>F” (0x41/0x09/0x46) is scanned, the output sequence is:
a. Enter “A” – Press A key
b. Enter “Ctrl + I” – Since 0x09 corresponds to “CtrI + I”, virtual keyboard will press and hold
Ctrl key, press I key, and release Ctrl key and I key
c. Enter “F” – Press F key

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Since “Ctrl+I” is shortcut for italicizing text in some software applications, the result of above
output sequence can be a regular A plus an italic F.
(2) Alt Mode:
For <HT>, the output sequence of virtual keyboard is:
Enter “Alt + 0 + 0 + 0 + 9” – Virtual keyboard will press and hold Alt key, press “0”, “0”, “0” and
“9” on numeric keypad respectively, and release Alt key.
Control Code Table
ASCII
Hex
Dec
Ctrl Mode
Alt Mode
NUL
00
0
Alt+0+0
Alt+0+0+0+0
SOH
01
1
Ctrl+a
Alt+0+0+0+1
STX
02
2
Ctrl+b
Alt+0+0+0+2
ETX
03
3
Ctrl+c
Alt+0+0+0+3
EOT
04
4
Ctrl+d
Alt+0+0+0+4
ENQ
05
5
Ctrl+e
Alt+0+0+0+5
ACK
06
6
Ctrl+f
Alt+0+0+0+6
BEL
07
7
Ctrl+g
Alt+0+0+0+7
BS
08
8
Ctrl+h
Alt+0+0+0+8
HT
09
9
Ctrl+i
Alt+0+0+0+9
LF
0A
10
Ctrl+j
Alt+0+0+1+0
VT
0B
11
Ctrl+k
Alt+0+0+1+1
FF
0C
12
Ctrl+l
Alt+0+0+1+2
CR
0D
13
Ctrl+m
Alt+0+0+1+3
SO
0E
14
Ctrl+n
Alt+0+0+1+4
SI
0F
15
Ctrl+o
Alt+0+0+1+5
DLE
10
16
Ctrl+p
Alt+0+0+1+6
DC1
11
17
Ctrl+q
Alt+0+0+1+7
DC2
12
18
Ctrl+r
Alt+0+0+1+8
DC3
13
19
Ctrl+s
Alt+0+0+1+9
DC4
14
20
Ctrl+t
Alt+0+0+2+0
NAK
15
21
Ctrl+u
Alt+0+0+2+1
SYN
16
22
Ctrl+v
Alt+0+0+2+2
ETB
17
23
Ctrl+w
Alt+0+0+2+3
CAN
18
24
Ctrl+x
Alt+0+0+2+4
EM
19
25
Ctrl+y
Alt+0+0+2+5
SUB
1A
26
Ctrl+z
Alt+0+0+2+6
ESC
1B
27
Alt+0+0+2+7
Alt+0+0+2+7

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FS
1C
28
Alt+0+0+2+8
Alt+0+0+2+8
GS
1D
29
Alt+0+0+2+9
Alt+0+0+2+9
RS
1E
30
Alt+0+0+3+0
Alt+0+0+3+0
US
1F
31
Alt+0+0+3+1
Alt+0+0+3+1
Numeric Key
Numeric Key
Alphanumeric Key*
Note:
1. By default, the alphanumeric key is used for trasmitting digits. Scan NUMERIC KEY if you want
to use the keys on the numeric keypad.
2. If you select NUMERIC KEY, the Num Lock status of the physical keyboard should be ON.
Capital Lock Mode
Capslock Off* Capslock On
Capslock Free
Note:
When barcode scanner is set to Capslock Free mode, no matter keyboard Capslock LED indicator
is ON or OFF, output will be always the same as the Original barcode. In other words, what you see
is what output is.

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Surround GS1 Application Identifiers (AI’s) with Parentheses
Not Surround AI’s with Parentheses* Surround AI’s with Parentheses
When enabled, all GS1 AI in barcode(GS1-128, GS1-DataMatrix, UDI…) will be surrounded with
parentheses.
Imaging Settings
1D Inverse Barcode
Disable 1D Inverse Barcode* Enable 1D Inverse Barcode
2D Inverse Barcode
Disable 2D Inverse Barcode* Enable 2D Inverse Barcode

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Chapter 3 Interface
BT HID
Getting Connected
1. Press the function button on the top to power up the scanner.
2. Scan “Disconnect”, the scanner will emit two beeps.
Disconnect
3. Scan “BT HID”, the scanner will emit two beeps.
BT HID
4. Select “Wireless Scanner” from discovered device list.
5. The scanner will emit two beeps as indication that the Bluetooth connection has established
successfully.
6. While conneted with the scanner as physical keyboard, the touch keyboard on iOS/Android
device might disappear. To resolve this issue please do the following:
(1) For iOS device, simply press the function button on the top once.
(2) For Android device, go to “Settings” > “Language & Input”, tap on “Default keyboard” and
turn off “Physical keyboard” or turn on “On-screen keyboard”.

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BT SPP
Getting Connected
1. Press the function button on the top to power up the scanner.
2. Scan “Disconnect”, the scanner will emit two beeps.
Disconnect
3. Scan “BT SPP”, the scanner will emit two beeps.
BT SPP
4. Select “Wireless Scanner” from discovered device list.
5. Enter serial communication software on your host and open the port occupied by the scanner.
6. The scanner will emit two beeps as indication that the Bluetooth connection has established
successfully.
Set SPP Pincode
By default, the pincode under BT SPP profile for the scanner is “1234”. It is configurable up to 8
numbers.
Set SPP Pincode
Example: Set SPP Pincode to 0000.
Step1: Scan “Set SPP Pincode”
Step2: Scan “0” “0” “0” “0” in Appendix - Numbers
Step3: Scan “Set SPP Pincode”

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General Bluetooth Settings
Power Off Timeout
The power off timeout is 3 minutes & 0 second by default. They are configurable from a minimum of
10 seconds (00:10) to a maximum of 60 minutes and 59 seconds (60:59)
Set Minute
(Default = 03)
Set Second
(Default = 00)
Example: Set Power Off Timeout to 5 minnutes and 30 seconds.
Step1: Scan “Set Minute”
Step2: Scan “0” “5” in Appendix - Numbers
Step3: Scan “Set Minute”
Step4: Scan “Set Second”
Step5: Scan “3” “0” in Appendix - Numbers
Step6: Scan “Set Second”
To disable Power Off Timeout (make scanner always on), scan below barcode:
Disable Timeout
Shut Down
To shut down the scanner immediately, pelase scan below configuration barcode.
Shut Down