Newland NLS-EM1395-LD Quick setup guide

NLS-EM1395-LD
OEM Scan Engine
Integration Guide

Disclaimer
© 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, 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 NewlandAuto-ID Tech. Co., Ltd. reserves the right to make final interpretation of the statement above.
Fujian Newland Auto-ID Tech. Co., Ltd.
3F, BuildingA, No.1, Rujiang West Rd., Mawei, Fuzhou, Fujian, China 350015
http://www.nlscan.com

Revision History
Version
Description
Date
V1.0.0
Initial release.
May 13, 2014

Table of Contents
Chapter 1 Introduction.......................................................................................................................................1
Overview ..........................................................................................................................................................1
Illumination.......................................................................................................................................................1
Chapter 2 Installation.........................................................................................................................................2
General Requirements.....................................................................................................................................2
ESD..............................................................................................................................................................2
Dust and Dirt................................................................................................................................................2
Ambient Environment...................................................................................................................................2
Thermal Considerations...............................................................................................................................2
Installation Orientation.................................................................................................................................2
Optics ...............................................................................................................................................................3
Window Placement......................................................................................................................................3
Window Material and Color..........................................................................................................................3
Scratch Resistance and Coating.................................................................................................................4
Window Size ................................................................................................................................................5
Ambient Light...............................................................................................................................................5
Eye Safety....................................................................................................................................................5
Mounting...........................................................................................................................................................6
Front View (unit: mm)...................................................................................................................................6
Top View (unit: mm).....................................................................................................................................6
Bottom View (unit: mm)................................................................................................................................6
Chapter 3 Electrical Specifications..................................................................................................................7
Power Supply...................................................................................................................................................7
Ripple Noise.................................................................................................................................................7
DC Characteristics...........................................................................................................................................8
Operating Voltage........................................................................................................................................8
Operating Current........................................................................................................................................8

Chapter 4 Interfaces...........................................................................................................................................9
Host Interface Connector.................................................................................................................................9
Dimensions of the Host Interface Connector (unit: mm).............................................................................9
FFC Cable (unit: mm) ................................................................................................................................10
Communication Interface...............................................................................................................................11
Trigger............................................................................................................................................................11
Beeper............................................................................................................................................................13
Good Read LED.............................................................................................................................................14
Chapter 5 Development Tools ........................................................................................................................15
EVK ................................................................................................................................................................15

1
Chapter 1 Introduction
Overview
TM
The EM1395-LD OEM scan engine, armed with the Newland patented , a computerized image
recognition system, brings about a new era of 1D barcode scan engines.
The EM1395-LD’s 1D 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 EM1395-LD supports EAN-13, EAN-8, UPC-A, UPC-E, ISSN, ISBN, Codabar, Code 128, Code 93,
ITF-6, ITF-14, Interleaved 2 of 5, Industrial 2 of 5, Standard 2 of 5, Matrix 2 of 5, GS1 Databar, Code 39,
Code 11, MSI-Plessey, Plessey.
Illumination
The EM1395-LD has a red LED (622 nm ~ 628 nm) for supplementary lighting, making it possible to scan
barcodes even in complete darkness. The illumination can be programmed On or Off.
The EM1395-LD uses red LED 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 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 EM1395-LD 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 EM1395-LD must be sufficiently enclosed to prevent dust particles from gathering on the imager,
lens and circuit board. 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 EM1395-LD:
Operating Temperature
-20℃~ 60℃
Operating Temperature
-40℃~ 85℃
Humidity
5% ~95% (non-condensing)
Thermal Considerations
Electronic components in the EM1395-LD will generate heat during the course of their operation.
Operating the EM1395-LD in continuous mode 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 EM1395-LD.
Reserve sufficient space for good air circulation in the design.
Avoid wrapping the EM1395-LD with thermal insulation materials such as rubber.

3
Installation Orientation
The following figure illustrates a front view of the EM1395-LD after correct installation. From left to right in
the figure are lens and illumination (aiming), with decoder board on the top and mounting holes on the
bottom.
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.
Up
≤2mm
≤3mm

4
Window Material and Color
Wavelength of illumination beam and CIS’s responsiveness (mainly to wavelengths of red light）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 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 recommended to use abrasion
resistant window material or coating.

5
Window Size
The window must not block the field of view and should be sized to accommodate the illumination
envelope shown below.
Ambient Light
The EM1395-LD 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 EM1395-LD has no lasers. It uses a red LED to create 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.
Illumination Envelope
Illumination Envelope
FOV Envelope

6
Mounting
The illustrations below show the mechanical mounting dimensions for the EM1395-LD. The structural
design should leave some space between components and reserve enough room for the FFC cable.
Front View (unit: mm)
Top View (unit: mm)
Bottom View (unit: mm)

7
Chapter 3 Electrical Specifications
Power Supply
Do not power up the EM1395-LD 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 500ms.
The EM1395-LD itself does not provide a power switch. Users can switch the engine off by cutting off the
power.
The EM1395-LD’s start-up time is less than 200ms.
Ripple Noise
Image sensor and decoder chip are directly fed by the input power of EM1395-LD. To ensure the stable
performance, a power supply with low ripple noise is needed.
Acceptable ripple range (peak-to-peak) : ≤100mV (≤50mV recommended).

8
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
Standby Current
Unit
65
9
mA

9
Chapter 4 Interfaces
Host Interface Connector
The following table lists the pin functions of the 12-pin host interface connector on the EM1395-LD.
PIN#
Signal Name
I/O
Function
1
NC
-
Not connected.
2
VDD
-
3.3V power supply.
3
GND
-
Power-supply ground.
4
RX
I
TTL level 232 receive data.
5
TX
O
TTL level 232 transmit data.
6
USB_D-
I/O
USB_D- differential data signal.
7
USB_D+
I/O
USB_D+ differential data signal.
8
PWRDWN
O
Low Power State signal output: Active high indicates that the
engine is in low power state.
9
Buzz
O
Beeper output. For the information of beeper driver circuit, see the
Beeper section in this chapter.
10
LED
O
Good Read LED output. For the information of LED driver circuit,
see the Good Read LED section.
11
Wake
I
Same as the nTrig pin (PIN 12).
12
nTrig
I
Trigger signal input: Driving this pin low for at least 10ms causes
the engine to start a scan and decode session.

10
Dimensions of the Host Interface Connector (unit: mm)
The engine uses a 12-pin ZIF socket (bottom contact, model: 10051922-1210ELF/ 10051922-1210EHLF)
manufactured by FCI. The socket can be connected to a host device with an FFC cable.

11
FFC Cable (unit: mm)
A 12-pin FFC cable can be used to connect the EM1395-LD to a host device. The cable design must be
consistent with the specifications shown below. Use reinforcement material for the connectors on the
cable and reduce cable impedance for reliable connection and stable performance.
Communication Interface
The EM1395-LD can communicate with the host device through one of the following interfaces:
TTL-232: This interface, in most cases, does not require any hardware modifications to existing
platforms. However, 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 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.
The EM1395-LD’s serial port supports baud rates from 1200bps to 115200bps; it does not support
hardware or software flow control. Its default settings are 9600bps, 8 data bits, no parity check and1 stop

12
bit.
Trigger
Driving the nTrig pin (PIN 12) on the host interface connector low for over 10ms causes the EM1395-LD
to start a scan and decode session. If barcode is decoded, the EM1395-LD 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 EM1395-LD immediately stops decoding.
Next decode session does not happen until the EM1395-LD 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.
B3F-4000S1
2 3
1 4
5 6
C3
100pF
CBW1608/60R
L1
C4
100pF
nTrig
R15
10K
VDD

13
Beeper
The EM1395-LD 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.
2N3904
Q8 AS903Q
LS1
1
2
R5
10R
R6 1K
R7
10K
VDD
BUZZ
BAT760
D2

14
Good Read LED
The EM1395-LD provides a pin (LED, PIN 10) on the host interface connector that can be used by an
external driver circuit to drive an LED to indicate a Good Read status. When a good read occurs, the LED
pin produces a high level output for about 300ms, then the signal is back to a low level. This Good Read
LED output is not strong enough to drive an LED, so an LED driver circuit is needed.
The following Good Read LED driver circuit is provided for reference.
2N3904
Q8
R1 1K
LED
R3
1k
LED
D3
R2
10K
VDD