Newland NLS-EM3090 Quick setup guide

NLS-EM3090
OEM Scan Engine
Integration Guide

Disclaimer
© 2015 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, doing so will void the product
warranty provided by Fujian Newland Auto-ID Tech. Co., Ltd.
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 hardware to improve reliability, function, or design at any time without notice. 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 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, distributed 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 West Rd., Mawei, Fuzhou, Fujian, China 350015
http://www.nlscan.com

Revision History
Version
Description
Date
V1.0.0
Initial release.
August 14, 2015

Table of Contents
Chapter 1 Introduction.......................................................................................................................................1
Overview ..................................................................................................................................................1
Aimer........................................................................................................................................................1
Illumination...............................................................................................................................................1
Chapter 2 Installation.........................................................................................................................................2
General Requirements.............................................................................................................................2
ESD...................................................................................................................................................2
Dust and Dirt.....................................................................................................................................2
Ambient Environment.......................................................................................................................2
Thermal Considerations ...................................................................................................................2
Installation Orientation......................................................................................................................3
Optics.......................................................................................................................................................3
Window Placement...........................................................................................................................3
Window Material and Color ..............................................................................................................4
Scratch Resistance and Coating......................................................................................................4
Window Size.....................................................................................................................................4
Ambient Light....................................................................................................................................5
Eye Safety.........................................................................................................................................5
Mounting...................................................................................................................................................5
Front View (unit: mm) .......................................................................................................................6
Left View (unit: mm)..........................................................................................................................6
Bottom View (unit: mm)....................................................................................................................6
Chapter 3 Electrical Specifications..................................................................................................................7
Power Supply...........................................................................................................................................7
Ripple Noise.............................................................................................................................................7
DC Characteristics...................................................................................................................................7
Operating Voltage.............................................................................................................................7

Current..............................................................................................................................................8
Chapter 4 Interfaces...........................................................................................................................................9
Host Interface Connector.......................................................................................................................10
Dimensions of the Host Interface Connector ................................................................................. 11
FFC Cable....................................................................................................................................... 11
Cable Connection...........................................................................................................................12
Communication Interfaces.....................................................................................................................12
Control Interfaces...................................................................................................................................13
Reset...............................................................................................................................................13
Trigger.............................................................................................................................................13
Beeper ............................................................................................................................................14
Good Read LED .............................................................................................................................15
Chapter 5 Development Tools.........................................................................................................................16
EVK........................................................................................................................................................16
QuickSet/uExpress.................................................................................................................................16

1
Chapter 1 Introduction
Overview
TM
The EM3090 OEM scan engine, armed with the Newland patented , a computerized image
recognition system, brings about a new era of 2D barcode scan engines.
The EM3090’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 EM3090 supports all mainstream 1D as well as PDF417, QR Code (QR1, QR2, Micro QR), Chinese
Sensible Code, Data Matrix and GS1-DataBarTM(RSS) (Limited/ Stacked/ Expanded versions).
Aimer
The EM3090 has a view finder that produces a bar-shaped aiming pattern to help the user to easily
position the target barcode within the engine’s field of view to increase scan efficiency. The aiming pattern
can be turned On or Off. It is advisable to turn it on when scanning barcodes.
Illumination
The EM3090 has several red LEDs (wavelength: 625±10nm) for supplementary lighting, making it
possible to scan barcodes even in complete darkness. The illumination can be programmed On or Off.
The EM3090 uses red LEDs for illumination, so 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 (such as green) instead. The user can
conduct some tests to determine the proper wavelengths to be used.

2
Chapter 2 Installation
General Requirements
ESD
ESD protection has been taken into account when designing the EM3090 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 EM3090 must be sufficiently enclosed to prevent dust particles from gathering on the lens, circuit
boards and LEDs. Dust and other contaminants will eventually degrade the engine’s performance.
Ambient Environment
The following environmental requirements should be met to ensure good performance of the EM3090:
Operating Temperature
-20℃to 55℃
Storage Temperature
-40℃to 80℃
Humidity
5% ~ 95% (non-condensing)
Thermal Considerations
Electronic components in the EM3090 will generate heat during the course of their operation. Operating
the EM3090 continuously for an extended period may cause temperatures to rise on CIS and decoder
chip. Overheating can degrade image quality and affect scanning performance. Given that, the following
precautions should be taken into consideration when integrating the EM3090.
Reserve sufficient space for good air circulation during design.
Avoid wrapping the EM3090 with thermal insulation materials such as rubber.

3
Installation Orientation
The following figure illustrates a front view of the EM3090 after installation.
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 furthest surface of the window. Avoid unwanted
reflections and use thin material for window so as to reach better reading performance. As shown in the
figure below, 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.
Up
≤ 2mm
≤ 3mm

4
Window Material and Color
Wavelengths of illumination and aiming beams should be taken into consideration when choosing window
material and color, 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
of illumination and aiming beams 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 the performance of the EM3090. 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.

5
Ambient Light
The EM3090 shows better performance with ambient light. However, high-frequency pulsed light can
result in performance degradation.
Eye Safety
The EM3090 has no lasers. It uses LEDs that create the aiming and illumination beams. These LEDs are
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 EM3090. The structural design
should leave some space between components and provide sufficient space for FFC cable.
Elements listed in previous sections should also be taken into consideration when integrating the
EM3090.

6
Front View (unit: mm)
Left View (unit: mm)
Bottom View (unit: mm)
The bottom view shows the mounting screw specification (M2, machine screw with an internal diameter of
2mm). Note that the part of mounting screws into the engine cannot exceed 3mm.

7
Chapter 3 Electrical Specifications
Power Supply
Do not power up the EM3090 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. Hot-plugging 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 2 seconds.
Ripple Noise
The image sensor is directly fed by the input power of EM3090. 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
Minimum
Typical
Maximum
Unit
VCC
3.1
3.3
3.6
V
VIH
VCC-0.5
-
-
V
VIL
-
-
0.5
V
VOH
VCC-0.3
-
-
V
VOL
-
-
0.3
V

8
Current
Ta=25℃，VCC=3.3V
Parameter
Average
Maximum
Unit
IOP
190
-
mA
IStandby
7
-
mA
ILow power
5
-
uA

9
Chapter 4 Interfaces
The following table lists the pin functions of the 12-pin host interface connector on the EM3090. Refer to
the “Cable Connection”section in this chapter for the location of Pin 1.
PIN#
Signal Name
I/O
Function
1
VCC
-
Power supply.
2
VCC
-
Power supply.
3
GND
-
Power-supply ground.
4
RX
Input
TTL level 232 receive data.
5
TX
Output
TTL level 232 transmit data.
6
D-
Input/Output
USB D- differential data signal
7
D+
Input/Output
USB D+ differential data signal
8
GND
-
Power-supply ground.
9
BUZ
Output
Beeper output. For the information of external beeper driver
circuit, see the Control Interfaces section.
10
LED
Output
Good Read LED output. For the information of external LED
driver circuit, see the Control Interfaces section.
11
RESET
Input
Reset signal input: Driving this pin low for at least
100μs-500μsresets the EM3090.
12
TRIG
Input
Trigger signal input: Driving this pin low for at least 10ms
causes the EM3090 to start a scan and decode session.

10
Host Interface Connector
The EM3090’s host interface connector is a 12-pin ZIF socket (bottom contact) which can be used to
connect a host device (e.g., software development board EVK) with an FFC cable. The following figures
show the location and dimensions of the socket. (unit: mm)

11
Dimensions of the Host Interface Connector
FFC Cable
A 12-pin FFC cable can be used to connect the EM3090 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.
unit: mm
unit: mm

12
Cable Connection
Be sure the power is cut off before connecting a flexible cable to the host interface connector on the
EM3090. Hot plugging could damage the engine or the host device.
Connect the EM3090 to a host device with a 12-pin flexible cable as shown in the following figure.
Communication Interfaces
The EM3090 can communicate with the host device through either TTL-232 serial port or USB port using
one of the following communication modes.
TTL-232: This interface is applicable to most system architectures. For those requiring RS-232, a
TTL-232 to RS-232 conversion circuit is needed.
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 HID-POS: It is based on HID with no need for custom driver and is way more efficient in
communication than keyboard emulation and traditional RS-232 interface.
The EM3090’s serial port supports baud rates from 1200bps to 115200bps; it does not support hardware
flow control.

13
Control Interfaces
Reset
Driving the RESET pin (PIN 11) on the host interface connector low for 100μs-500μs and then having the
signal back to high or idle high level resets the EM3090.
The minimum interval between reset operations must exceed 2 seconds.
Trigger
Driving the TRIG pin (PIN 12) on the host interface connector low for a specified time period causes the
EM3090 to start a scan and decode session. The time period varies from one scan mode to another.
Anti-shake mechanism is used in level trigger mode. For this mode, a trigger begins when the signal from
the TRIG pin remains low for at least 10ms.
For those scan modes with a timeout mechanism, the trigger automatically deactivates when the timeout
expires. After a trigger ends, the engine gets ready for next trigger only if the signal from the TRIG pin
stays high for at least 10ms.

14
Beeper
The EM3090 provides a pin (BUZ, 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,
good read or operation error. The PWM output is not strong enough to drive a beeper, so a beeper driver
circuit is needed.
The following beeper driver circuit is provided for reference.