Embedded 2d barcode Scan Engine


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NameEmbedded 2d barcode Scan Engine
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NLS-EM3080 Series

Embedded 2D Barcode Scan Engine

Integration Guide





Disclaimer
© 2013-2014 Fujian Newland Auto-ID Tech. Co., Ltd. All rights reserved.

Please read through the manual carefully before using the product and operate it according to the manual. It is advised that you should keep this manual for future reference.

Do not disassemble the device or remove the seal label from the device. Otherwise, Fujian Newland Auto-ID Tech. Co., Ltd. does not assume responsibility for the warranty or replacement.

All pictures in this manual are for reference only and actual product may differ. Regarding to the product modification and update, Fujian Newland Auto-ID Tech. Co., Ltd. reserves the right to make changes to any software or product to improve reliability, function, or design at any time without notice. Besides, the information contained herein is subject to change without prior notice.

The products depicted in this manual may include software copyrighted by Fujian Newland Auto-ID Tech. Co., Ltd or a third party. The user, corporation or individual, shall not duplicate, in whole or in part, distribute, modify, decompile, disassemble, decode, reverse engineer, rent, transfer or sublicense such software without prior written consent from the copyright holders.

This manual is copyrighted. No part of this publication may be reproduced or used in any form without written permission from Newland.

Fujian Newland Auto-ID Tech. Co., Ltd. reserves the right to make final interpretation of the statement above.

Fujian Newland Auto-ID Tech. Co., Ltd.

3F, Building A, No.1, Rujiang Xi Rd., Mawei, Fuzhou, Fujian, P.R. China. 350015.

http://www.nlscan.com
Revision History


Version

Description

Date

V1.0.0

Initial release.

May 13, 2013

V1.0.1

Added the pinout information of the host interface connector on EM3080-01 (USB Version) in Chapter 4.

July 30, 2014


Table of Contents





Chapter 1 Introduction 1

Overview 1

Illumination 1

Aimer 1

Chapter 2 Installation 3

General Requirements 3

ESD 3

Dust and Dirt 3

Ambient Environment 3

Thermal Considerations 3

Installation Orientation 4

Optics 4

Window Placement 4

Window Material and Color 5

Scratch Resistance and Coating 5

Window Size 6

Ambient Light 7

Eye Safety 7

Mounting 8

Front View (unit: mm) 8

Left View (unit: mm) 8

Bottom View (unit: mm) 9

Chapter 3 Electrical Specifications 10

Power Supply 10

Ripple Noise 10

DC Characteristics 11

Operating Voltage 11

Operating Current 11

Chapter 4 Interfaces 12

Host Interface Connector 12

Dimensions of the Host Interface Connector 14

Flat Flexible Cable 14

Communication Interface 15

Trigger 16

Beeper 17

Chapter 5 Development Tools 18

EVK 18



Chapter 1 Introduction

Overview

TM

NLS-EM3080 series embedded 2D barcode scan engines, armed with the Newland patented , a computerized image recognition system, bring about a new era of 2D barcode scan engines.

The EM3080’s 2D barcode decoder chip ingeniously blends technology and advanced chip design & manufacturing, which significantly simplifies application design and delivers superior performance and solid reliability with low power consumption.

The EM3080 supports all mainstream 1D as well as PDF417, QR Code (QR1、QR2、Micro QR), Data Matrix and GS1-DataBarTM(RSS) (RSS-Limited, RSS-14, RSS-14 Stacked and RSS-Expand).



Illumination

The EM3080 has a red LED (wavelength: 625±10 nm) for supplementary lighting, making it possible to scan barcodes even in complete darkness. The illumination can be programmed On or Off.

The use of red light as illumination results in that the engine shows better reading performance on barcodes printed in non-red colors. For applications involving red barcodes, it is advised to turn off the engine’s illumination and use non-red supplementary lighting instead. The user can conduct some tests to determine the proper wavelengths to be used.
Aimer

The EM3080 uses the red LED and projection lens to produce two brighter aiming beams over the borders of illumination envelope to indicate the engine’s field of view.

Chapter 2 Installation

General Requirements

ESD

ESD protection has been taken into account when designing the EM3080 and the engine is shipped in ESD safe packaging. Always exercise care when handling the engine outside its package. Be sure grounding wrist straps and properly grounded work areas are used.
Dust and Dirt

The EM3080 must be sufficiently enclosed to prevent dust particles from gathering on the imager and lens. Dust and other external contaminants will eventually degrade the engine’s performance.
Ambient Environment

The following environmental requirements should be met to ensure good performance of the EM3080:

Working Temperature

-20℃ to 60℃

Storage Temperature

-40℃ to 85℃

Humidity

5% to 95% (non-condensing)


Thermal Considerations

Electronic components in the EM3080 will generate heat during the course of their operation. Operating the EM3080 in continuous mode for an extended period may cause temperatures to rise on CIS and decoder chips. Overheating can degrade image quality and affect scanning performance. Given that, the following precautions should be taken into consideration when integrating the EM3080.

  • Reserve sufficient space for good air circulation in the design.

  • Avoid wrapping the EM3080 with thermal insulation materials such as rubber.


Installation Orientation

The following figure illustrates a front view of the EM3080 after installation, with the engine’s decoder board on the top, and illumination and lens on the front.


Optics

Window Placement

The window should be positioned properly to let the illumination and aiming beams pass through as much as possible and no reflections back into the engine (reflections can degrade the reading performance).

The window should be mounted close to the front of the engine (parallel). The maximum distance is measured from the front of the engine housing to the farthest surface of the window. In order to reach better reading performance, the distance from the front of the engine housing to the furthest surface of the window should not exceed 3mm and the distance from the front of the engine housing to the nearest surface of the window should not exceed 2mm.


If the window is required to be in a tilted position, the above distance requirements should be met and tilt angle should ensure no reflections back into the lens.
Window Material and Color

Illumination wavelengths and CIS’s responsiveness (mainly to wavelengths of red light)should be taken into consideration when choosing window material and color, in order to achieve the possible highest spectral transmission, lowest haze level and homogeneous refractive index. It is suggested to use PMMA or optical glass with spectral transmittance over 90% and haze less than 1%. Whether to use an anti-reflection coating or not depends on the material and application needs.
Scratch Resistance and Coating

Scratch on the window can greatly reduce engine performance. It is suggested to use abrasion resistant window material or coating.
Window Size

The window must not block the field of view and should be sized to accommodate the aiming and illumination envelopes shown below.




Ambient Light

The EM3080 shows better performance with ambient light and it is well able to handle the flicker in fluorescent lights using 50-60Hz AC power. However, high-frequency pulsed light can result in performance degradation.
Eye Safety

The EM3080 has an LED what creates the aiming and illumination beams. The LED is bright, but testing has been done to demonstrate that the engine is safe for its intended application under normal usage conditions. However, the user should avoid looking into the beam.
Mounting

The illustrations below show the mechanical mounting dimensions for the EM3080. The structural design should leave some space between components.

Front View (unit: mm)



Left View (unit: mm)



Bottom View (unit: mm)




Chapter 3 Electrical Specifications

Power Supply

Do not power up the EM3080 until it is properly connected. Be sure the power is cut off before connecting a flexible cable to or disconnecting a flexible cable from the host interface connector. This could damage the engine.

Unstable power supply or sharp voltage drops or unreasonably short interval between power-ons may lead to unstable performance of the engine. Do not resupply the power immediately after cutting it off. The minimum interval must exceed 500ms.

The EM3080 itself does not provide a power switch. Users can switch the engine off by cutting off the power. Switching it on and off frequently will not shorten the service life of the EM3080.

The EM3080’s start-up time is less than 200ms.
Ripple Noise

Image sensor and decoder chip are directly fed by the input power of EM3080. To ensure the image quality, a power supply with low ripple noise is needed.

Acceptable ripple range (peak-to-peak) : ≤50mV (≤30mV recommended).

DC Characteristics

Operating Voltage

Ta=25℃

Parameter

Description

Minimum

Typical

Maximum

Unit

VDD

Voltage Drain Drain

3.0

3.3

3.6

V

VIH

High Level Input Voltage

0.7*VDD

-

-

V

VIL

Low Level Input Voltage

-

-

0.2*VDD

V

VOH

High Level Output Voltage

0.9*VDD

-

-

V

VOL

Low Level Output Voltage

-

-

0.1*VDD

V


Operating Current

Ta=25℃VDD=3.3V

Operating Current

Idle Current

Sleep Current

Unit

155

94

40

mA


Chapter 4 Interfaces

Host Interface Connector

The following table lists the pin functions of the 12-pin host interface connector.



EM3080 (TTL-232 version):

PIN#

Signal Name

I/O

Function

1

NC

-

Not connected.

2

VDD

-

3.3V power supply.

3

GND

-

Power-supply ground.

4

RX

Input

TTL-232 receiving.

5

TX

Output

TTL-232 transmission.

6

NC

-

Not connected.

7

NC

-

Not connected.

8

NC

-

Not connected.

9

Buzz

Output

Beeper output. For the information of beeper driver circuit, see the “Beeper” section in this chapter.

10

NC

-

Not connected.

11

NC

-

Not connected.

12

nTrig

Input

Trigger signal input: Driving this pin low for 10ms causes the EM3080 to start a scan and decode session.


EM3080-01 (USB version):

PIN#

Signal Name

I/O

Function

1

NC

-

Not connected.

2

VDD

-

3.3V power supply.

3

GND

-

Power-supply ground.

4

USB_D-

Input/Ouput

USB_D- differential data signal.

5

USB_D+

Input/Ouput

USB_D+ differential data signal.

6

NC

-

Not connected.

7

NC

-

Not connected.

8

NC

-

Not connected.

9

Buzz

Output

Beeper output. For the information of beeper driver circuit, see the “Beeper” section in this chapter.

10

NC

-

Not connected.

11

NC

-

Not connected.

12

nTrig

Input

Trigger signal input: Driving this pin low for 10ms causes the EM3080 to start a scan and decode session.


Dimensions of the Host Interface Connector

The EM3080’s host interface connector is a 12-pin ZIF socket which can be used to connect a host device with a flat flexible cable. The following figure shows the dimensions of the socket. (unit: mm)



Flat Flexible Cable

A 12-pin flat flexible cable can be used to connect the EM3080 to a host device. The cable design must be consistent with the following specifications shown below. Use reinforcement material for the connectors on the cable and reduce cable impedance for reliable connection and stable performance.


Communication Interface

EM3080 (TTL-232 version):

The EM3080 can communicate with the host device through TTL-232 serial port. This interface is applicable to most system architectures. For those requiring RS-232, a TTL-232 to RS-232 conversion circuit is needed.

Baud rates supported: 1200bps, 2400bps, 4800bps, 9600bps, 14400bps, 19200bps, 38400bps, 57600bps and 115200 bps.

Default settings: 9600 bps, 8 data bits, no parity check, 1 stop bit.

The TTL-232 interface does not support hardware flow control or software flow control.
EM3080-01 (USB version):

The EM3080-01 can communicate with the host device through one of the following interfaces:

  • USB HID-KBW: Based on USB connection, the engine’s transmission is simulated as USB keyboard input. It works on a Plug and Play basis and no driver is required.

  • USB COM Port Emulation: The USB port on the host device is emulated as a serial port with the same data transmission and configuration as a real serial port. A driver is required.

  • USB DataPipe:This protocol is defined by Newland. A driver is required when using this protocol to communicate with scanner.

  • HID-POS: HID-POS does not require a custom driver. However, an HID interface on Windows 98 does. All HID interfaces employ standard driver provided by the operating system.


Trigger

Driving the nTrig pin (PIN 12) on the host interface connector low causes the EM3080 to start a scan and decode session. If barcode is decoded, the EM3080 waits for the voltage at the nTrig pin to turn high (or the trigger to be released) after sending the data to the Host. If the trigger is released during a scan attempt, the EM3080 stops decoding.

Next decode session does not happen until the EM3080 receives active trigger signal (driving the nTrig pin low) again.

As a decode session involves image capture, barcode decoding and other steps, it is suggested that the minimum interval between two triggers should exceed 50ms.

The following trigger circuit is provided for reference.


Beeper

The EM3080 provides a pin (Buzz, PIN 9) on the host interface connector that provides a PWM output to an external driver circuit for generating audible feedback to the user to indicate statuses like power up or good decode. The PWM output is not strong enough to drive a beeper, thus a beeper driver circuit is needed.

The following beeper driver circuit is provided for reference.





Chapter 5 Development Tools

EVK

The EVK is provided to help users to test and evaluate the EM3080, which contains beeper & beeper driver circuit, LED & LED driver circuit, trigger & reset buttons, TTL-232 to RS-232 converter & TTL-232 to USB converter, RS-232 & USB interfaces, etc. The EM3080 can be connected to the EVK via a 12-pin flat flexible cable. Either USB connection or RS-232 connection can be used when connecting the EVK to a host device.




Headquarters / 总部

福建新大陆自动识别技术有限公司

地址:福建省福州市马尾区儒江西路1号新大陆科技园

邮编:350015

电话:+86 - (0) 591-83979222

传真:+86 - (0) 591-83979208

E-mail: marketing@nlscan.com

WEB:www.nlscan.com
Newland Europe BV/ 欧洲新大陆有限公司

Rolweg 25, 4104 AV Culemborg, The Netherlands

TEL: +31 (0) 345 87 00 33

FAX: +31 (0) 345 87 00 39

Email: sales@newland-id.com

WEB: www.newland-id.com

Tech Support: tech-support@newland-id.com
Newland North America Inc. /北美新大陆有限公司

Address: 46559 Fremont Blvd., Fremont, CA 94538, USA

TEL: 510 490 3888

Fax: 510 490 3887

Email: info@newlandna.com

WEB: www.newlandna.com
Newland Taiwan Inc. / 台灣新大陸資訊科技股份有限公司

7F-6, No. 268, Liancheng Rd., Jhonghe Dist. 235, New Taipei City, Taiwan

新北市235中和區連城路268號7樓之6 (遠東世紀廣場J棟)

TEL: +886 2 7731 5388

FAX: +886 2 7731 5389

Email: sales.tw@newland-id.com

WEB: www.newland-id.com.tw




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