MARSON MT684 2D Scan Engine User Guide
- October 26, 2023
- MARSON
Table of Contents
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MARSON MT684 2D Scan Engine
SPECIFICATIONS
| Light Source | white LED |
|---|---|
| Sensor | 640 x 480 pixels |
Resolution
| 5mil/ 0.125mm (1D barcode)
10mil/ 0.25mm (2D barcode)
Field of View
| Horizontal 68°
Vertical 50°
Scan Angle
| Pitch Angle ±60°
Skew Angle ±60°
Roll Angle 360°
Print Contrast Ratio| 25%
Typical Depth of Field
| UPC/EAN 13Mil: 8 ~ 181mm Code 128 15Mil: 5 ~ 143mm
QR Code 15Mil: 2 ~ 119mm
Dimension| W61.5 x L65 x H30.7 mm
Connector
| Micro USB Port
12 pin ZIF (pitch=0.5mm) 9pin Wafer (pitch=1.0mm)
Operation Voltage
| 3.3VDC ± 5%
5V (USB)
Working Current| < 120 mA
Interface
| UART TTL USB HID
USB VCP
Operating Temperature| -20°C ~ 60°C
Storage Temperature| -40°C ~ 70°C
Humidity| 5% ~ 95%RH (Non-condensing)
Drop Durability| 1.2M
Ambient Light| 100,000 Lux (Sunlight)
1D Symbologies
| UPC-A/ UPC-E EAN-8/ EAN-13
Code 128
Code 39 Codabar Interleaved 2 of 5
| Industrial 2 of 5
Matrix 2 of 5
Code 11 MSI Plessey
GS1 Databar
---|---
2D Symbologies
| QR Code PDF417
Data Matrix
ESD
| Functional after 4KV contact, 8KV air discharge (requires housing that is designed for ESD
protection and stray from electric fields)
Environmental| WEEE, RoHS 2.0
MECHANICAL DIMENSIONS
(Unit = mm)
ELECTRIC INTERFACE
3-1. 12-pin ZIF Connector (Pitch 0.5mm, bottom contact)
| Pin# | Signal | Description | I/O |
|---|---|---|---|
| 1 | NC | – | – |
| 2 | VCC | 3.3V power supply | – |
| 3 | GND | Ground | – |
| 4 | RXD | TTL receive | I |
| 5 | TXD | TTL send | O |
| 6 | DN | USB D- | I |
| 7 | DP | USB D+ | I |
| 8 | NC | – | – |
| 9 | BEEP | Good read buzzer indicator | O |
| 10 | DLED | Good read LED indicator | O |
| 11 | NC | – | – |
| 12 | TRIG | Trigger Input | I |
Below is the drawing of FFC cable that connects to ZIF connector.
3-2. 9-pin Wafer Connector (Pitch 1.0mm)
| Pin# | Signal | Description | I/O |
|---|---|---|---|
| 1 | TRIG | Trigger Input | I |
| 2 | DLED | Good read LED indicator | O |
| 3 | BEEP | Good read buzzer indicator | O |
| 4 | DP | USB D+ | I |
| 5 | DN | USB D- | I |
| 6 | TXD | TTL send | O |
| 7 | RXD | TTL receive | I |
| 8 | GND | Ground | – |
| 9 | VCC | 3.3V power supply | – |
Reference Circuit Design
Reference design for external trigger (TRIG) driver circuit
Reference design for external buzzer (BEEP) driver circuit
Reference design for external LED (DLED) driver circuit
After a barcode is successfully read, both BEEP and DLED pin will send a high- level pulse.
OPERATIONAL TIMING
Power Up
When power is initially applied, the MT684 is activated and begins the process of initialization. Once initialization (duration≧1000mS) is completed, the MT684 emits power-up beeps, enters Standby Mode and is ready for barcode scanning.
Decode Timing
By default MT684 is in Continuous Mode, in which it takes at least 80mS for MT684 to complete a scanning operation (decode + data output + buzzer signal). When MT684 is configured in Trigger Mode, the Trigger signal must be kept low for at least 20mS to activate scanning. Therefore in Trigger Mode it takes at least 100mS for MT684 to complete a scanning operation (trigger signal + decode + data output + buzzer signal).
Summary of Operational Timings
- The minimum duration of initialization is 1000mS.
- In Continuous Mode (default), the minimum duration of scanning operation is 80mS.
- In Trigger Mode, the minimum duration of valid Trigger signal is 20mS and minimum duration of scanning operation is 100mS
VERSION HISTORY
| Rev. | Date | Description | Issued |
|---|---|---|---|
| 0.1 | 2021.09.07 | Preliminary Draft Release | Shaw |
| 0.2 | 2021.09.22 | Added Vertical Field of View Angle & Scan Rate | Shaw |
| 0.3 | 2021.10.15 | Updated Specifications Added Operational Timing | Shaw |
| 0.4 | 2022.05.09 | Updated Specifications | Shaw |
| 0.5 | 2022.09.07 | Removed Scan Rate | Shaw |
Marson Technology Co., Ltd.
9F., 108-3, Minquan Rd., Xindian Dist., New Taipei City, Taiwan
TEL: 886-2-2218-1633
FAX: 886-2-2218-6638
E-mail: info@marson.com.tw
Web: www.marson.com.tw