Iritech IRISHIELD USB BO 2121 User manual

August 2021
Document Version 1.7
IRISHIELDTM-USB BO 2121
HARDWARE DEVELOPER’S
MANUAL

Document
Change Record
This page records any updates and revisions made to the IriShieldTM-USB BO 2121
Hardware Developer’s Manual.
Doc ver.
Date
Change Description
1.0
12th Jul 2013
The first release of IriShieldTM-USB Binocular camera
1.1
29th Nov 2013
Hardware specifications update
1.2
07th Jan 2014
Update power management /
IR filter part code change
1.3
13th Aug 2014
Update Memory Warranty
1.4
15th Dec 2017
Update the length of assembly cable
1.5
21st Mar 2018
Update power management
1.6
12th Apr 2018
Update camera description
1.7
21st Aug 2019
Update Camera Mechanical Drawing
Note
The information contained herein is provided solely for the purpose of assisting customers
to understand how to operate and integrate IriTech’s hardware and software and is not to
be released, reproduced, or used for any other purpose without written permission of
IriTech, Inc.
IriTech reserves the right to make changes on this hardware and software with the intent
to improve its functionalities. Information and specifications contained in this document
are subject to change without prior notice and do not represent a commitment on part of
IriTech.
Copyright © 2021 IriTech, Inc. All rights reserved.

1. Preface....................................................................................................................................................................................1
1.1 Purpose of this Document......................................................................................................................................1
1.2 Intended Reader ..........................................................................................................................................................1
1.3 Other Documentation..............................................................................................................................................1
1.4 Contact Information .................................................................................................................................................1
2. Introduction ........................................................................................................................................................................1
3. Key Features......................................................................................................................................................................2
4. Warnings and Precautions.................................................................................................................................... 3
5. Product Inventory......................................................................................................................................................... 4
6. Hardware Specifications ........................................................................................................................................ 5
7. IrishieldTM-USB BO BOARD ........................................................................................................................................7
7.1 Mechanical Drawing ................................................................................................................................................7
7.2 Functional Block Diagram...................................................................................................................................7
7.3 Connector and Ass’y Cable Interfaces....................................................................................................8
7.4 Camera Interface ...................................................................................................................................................12
7.5 Camera Mechanical Drawing.......................................................................................................................13
7.6 IR-LED Specifications and Mechanical Drawing..............................................................................14
8. IR Filter..................................................................................................................................................................................15
9. Capture Volume...........................................................................................................................................................18
10. Aligning the Illumination Source......................................................................................................................18
11. Conditions for Using USB........................................................................................................................................19
11.1 Using USB 2.0................................................................................................................................................................19
12. Legal Notice.....................................................................................................................................................................21
12.1 Warranty Terms........................................................................................................................................................21
Table of
Contents

Hardware Developer’s Manual 1 © 2021 Iritech, Inc. All rights reserved.
1. Preface
1.1 Purpose of this Document
This Hardware Developer’s Manual provides detailed information useful for integrating the
IriShieldTM-USB BO 2121 into customer solutions, including hardware specifications, component
technology and component assembly.
1.2 Intended Reader
This document is written for hardware engineers and systems architects responsible for
designing and building complete biometrics solutions. Readers of this manual are assumed to
be familiar with basic engineering, electronics and biometrics concepts. There is no presumed
knowledge about any aspect of the IriShieldTM-USB BO 2121.
1.3 Other Documentation
For additional information about this product, refer to the following documents:
•IDDK 2000 API Reference Manual for C_C++ –a detailed listing of the Application
Programming Interface (API)
•IriShield-USB and IriShield-UART SW Developer's Manual.pdf –a user guide for using
IriShield’s software package
1.4 Contact Information
If you have any questions or experience any problems using this hardware, please contact:
Phone: [phone] (USA)
+82.2.872.3812 (South Korea)
Email: [e-mail]
Your feedback is important for us to help and provide you with the most accurate and highest
quality information. If you have any comments about this documentation, please email us.
Include the version of this document and the section that pertains to your comments.
2. Introduction
IriShieldTM-USB BO 2121 is a revolutionary, binocular design that delivers the highest quality
autocapturing iris acquisition with an ease of use never achieved by older camera systems. The
system offers contactless, fast, standards-compliant iris acquisition in a small form factor that
is easy to house in a variety of packages. IriShieldTM-USB includes an embedded CPU that
enables on-board computing for automated quality-based iris image capturing, recognition,
and verification without taxing the computing power of the host PC. IriShieldTM-USB provides a
PKI-based security infrastructure which creates a selfgenerated RSA-2048bit key and
generates a random one-time AES-256bit key for each session. As a result, this camera can
operate with nearly any host PC or mobile computing device. With its USB interface, compact
design, and sophisticated, easy-to-integrate accompanying software, IriShieldTM-USB
represents an unprecedented value for iris biometrics identification.

Hardware Developer’s Manual 2 © 2021 Iritech, Inc. All rights reserved.
3. Key Features
•All-in-one Iris Identification camera in an ultra-compact size
•Top quality, fast, auto-capture and cost-effective iris recognition camera
•Automatic, easy-to-use, and light-weight
•Built-in Real-time Quality Evaluator and Automated Iris Acquisition
•Proven leading algorithms for template generation and comparison
•Single USB cable connection to host PC (both Power supply and Data)
•Powerful SDK for easy software development
•Safest for eyes: Safe infrared illumination at less than 2% of the LED Eye Safety
Standard Regulation
•Ready to be integrated with IriTech’s enterprise software
•Easy hardware integration

Hardware Developer’s Manual 3 © 2021 Iritech, Inc. All rights reserved.
4. Warnings and Precautions
IriShieldTM-USB includes sensitive electronics and optics. It is possible for the IriShieldTM-USB
device to be damaged if the following precautions are not followed:
•Clean regularly to remove dust, but do not use any cleaning solutions. Only wipe the
device with a smooth cloth or towel. Keep the lens free of dust and dirt by using a
special cloth to avoid scratching on the optics.
•Do not allow water to leak into the device
•Do not operate the device in humid conditions where condensation may enter the
device.
•Do not operate the device in places where temperatures are beyond or below the
given range.
•Do not place the device next to heating equipment.
•Do not place magnets near the device.
•Do not apply voltage or currents beyond the given range.
•Do not use the device for any purposes beyond those specified.
•Do not disassemble components from the boards.
•Do not alter the wiring or board design.
•Do not drop the device or cause sudden impact and mechanical stresses.
•Handle the electronics with proper anti-static protection and techniques to prevent
microchips from being shorted out.
Any damage to the device caused by these activities will void the warranty.

Hardware Developer’s Manual 4 © 2021 Iritech, Inc. All rights reserved.
5. Product Inventory
Item
Quantity
Standard
IriShield™-USB BO Board
1
15cm Camera Module
2
FPCB Cable
2
130 mm Ass’y Cable
1
15ΦIR-Filter
2
Software Package
1
Option
Micro USB Cable
1
Micro USB cable
IriShield-USB BO Board
Software Package
IR-Filter
STANDARD
Camera Module
FPCB Cable
OPTION
Ass’y Cable
STANDARD
* Software Package can be downloaded from IriTech’s Website.
* Additional cost applies for parts offered as option.

Hardware Developer’s Manual 5 © 2021 Iritech, Inc. All rights reserved.
6. Hardware Specifications
•Mechanical Size
oIriShieldTM-USB BO Board: Main board (details from page 9)
47 x 40 x 6.9 mm (1.8 x 1.6 x 0.3 in)
oCamera Module: specialized iris camera module (details in page 15)
31 x 27 x 23.3 mm (1.2 x 1.1 x 0.9 in)
※Details for alignment of IR LED on Camera module: page 19
oFPCB Cable: Interface cable between IriShieldTM-USB BO board and camera module
(details in page 12)
41 x 21 x 0.3 mm (1.6 x 0.8 x 0.01 in)
o130mm Ass’y Cable: Communication cable with host (details in page 10)
140 x 5.4 x 2.8 mm (5.5 x 0.2 x 0.1 in)
o15 ΦIR-Filter: Band pass filter to remove visible light reflection in iris image
15 x 15 x 1.1 mm (0.6 x 0.6 x 0.04 in)
※Should be assembled in front of camera module (details from page 17)
•Power Requirements
Required Voltage
Vin
Min
Max
Recommend
Single USB Power (DC +5V ± 5%)
Absolute
3.4V
6V
•Infinite loops are one of the most common problem that plagues developers. They
can occur in any programming language, in any application and in any coding style.
If infinite loop occurs, it can be solved by turning off/on the power switch. We
strongly recommend installing switching circuit or power control switch to fix the
problem.
•Power Management
Mode
Current
Description
Active
MAX 430mA
Fully operating
Standby
MAX 80mA
Standby Mode
Sleep
MAX 60mA
Sleep Mode
•Environmental
o-20°C to +60°C Storage
o0°C to +50°C Operating

Hardware Developer’s Manual 6 © 2021 Iritech, Inc. All rights reserved.
•Camera Description
Image Resolution:
ISO Standard 19794-6 (2005 & 2011), (640 x 480 pixels,
8bit Grayscale), Full support of K1, K2, K3, K7
Sensor Resolution:
VGA
Pixel Density:
Normally greater than 210 pixels across iris diameter
Focal Distance:
13.75 ~ 15.25 cm (5.4 ~ 6.0 in) from the front of camera
Lens.
Optimal Distance:
14.5 cm (5.7 in), Focal depth = 1.5 cm (0.6 in)
Field of View (FOV):
About 3.3 x 2.4 cm at 14.5 cm (1.3 x 0.9 in at 5.7 in)
•Memory
o64 MB NAND Flash Memory
o128 MB Mobile DDR SDRAM
•External Connection
1 USB Connection (supports USB 2.0)
•Compliance
oEye safety (IEC 62471:2006-07)
oRoHS
•Memory Warranty
Iris images will be stored inside the memory of device. This memory is warranted for storing
and deleting up to 100,000 cycles. Therefore, if the count of stored/deleted images exceeds
100,000 cycles, the device will be out of warranty.
Program, erase endurance cycles
Parameters
Min
Unit
Program/erase cycles per block
100,000
Cycles

Hardware Developer’s Manual 7 © 2021 Iritech, Inc. All rights reserved.
7. IrishieldTM-USB BO BOARD
7.1 Mechanical Drawing
Note: All dimensions are in millimeters.
7.2 Functional Block Diagram

Hardware Developer’s Manual 8 © 2021 Iritech, Inc. All rights reserved.
7.3 Connector and Ass’y Cable Interfaces
•USB Connector
Location: J4 (on top of IriShieldTM-USB BO Board)
1.0mm pitch, 5 pin connector
Manufacturer: CVILUX CORPORATION
Part Number: CI1105M1HR0-LF
Pin number
Signal
1
VUSB+
2
D-
3
D+
4
GND
5
NC

Hardware Developer’s Manual 9 © 2021 Iritech, Inc. All rights reserved.
•130mm Ass’y Cable
Location: From J4 to Host
1.0mm pitch, 5 pin cable
Housing and Terminal Manufacturer: CVILUX CORPORATION
Part Number: Housing (CI1105S0000), Terminal (CI11T011PP0)
•FPC Connector
Location: J1, J7 (on bottom of IriShieldTM-USB BO Board)
0.5mm pitch, 24 pin connector
Manufacturer: YEONHO ELECTRONICS
Part Number: 05003HR-24B02S
Pin number
Signal
1
GND
2
HSYNC
3
VSYNC
4
CIPWM
5
PCLK
6
POWER (3.3V)
7
POWER (3.3V)
8
I2CSDA
9
MCLK

Hardware Developer’s Manual 10 © 2021 Iritech, Inc. All rights reserved.
10
I2CSCL
11
DATA0
12
DATA1
13
DATA2
14
DATA3
15
GND
16
DATA4
17
DATA5
18
DATA6
19
DATA7
20
RESET
21
GPIO1
22
GPIO2
23
GPIO3
24
GPIO4

Hardware Developer’s Manual 11 © 2021 Iritech, Inc. All rights reserved.
•FPCB Cable
•USB Connector
Location: CN1 (on bottom of IriShieldTM-USB BO Board)
0.65mm pitch, 5 pin connector
Manufacturer: MAIN SUPER ENTERPRISES CO. LTD.
Part Number: 000010801-00012
Pin number
Signal
1
VUSB+
2
D-
3
D+
4
NC (shield cable with GND)
5
GND

Hardware Developer’s Manual 12 © 2021 Iritech, Inc. All rights reserved.
7.4 Camera Interface

Hardware Developer’s Manual 13 © 2021 Iritech, Inc. All rights reserved.
7.5 Camera Mechanical Drawing
Note: All dimensions are in millimeters.
•Note: When you design the case, make sure to make some space between the
camera lens and the case because there is a tolerance of around 3mm in the
height of the camera module.

Hardware Developer’s Manual 14 © 2021 Iritech, Inc. All rights reserved.
7.6 IR-LED Specifications and Mechanical Drawing
•IR-LED Specifications
Peak wavelength: λp = 810 nm
Angle of half intensity: ϕ= ± 15°
Manufacturer: U-JIN LED
Part Number: ULI-81036A-30IRP
•Mechanical Drawing
Note: All dimensions are in millimeters.

Hardware Developer’s Manual 15 © 2021 Iritech, Inc. All rights reserved.
8. IR Filter
IR Filter enables only infrared light to penetrate into the camera by filtering out visible light.
•Note: Camera should be in a dark space. Make sure visible lights do not
penetrate into the camera when you attach the IR filter on your case.
•Location (Example)
Place rhe IR Filter on the camera as shown below.

Hardware Developer’s Manual 16 © 2021 Iritech, Inc. All rights reserved.
•Avaibility
The following types of IR Filter have been used in other products.
Specifications of IR Filter that can be modified are as follows. Additional cost applies for
this tooling.
-Thickness: 0.55mm, 0.7mm, 1.1mm
-Shape: Circle, Quadrangle, etc.
-Size: ~ 300Φ(Circle), ~ 340mm*290mm (Quadrangle)

Hardware Developer’s Manual 17 © 2021 Iritech, Inc. All rights reserved.
•Recommend Band Pass Filter Specifications
-Tavg 〈5% @ 400~680nm
-Tavg 〉90% @ 720~880nm
-Tabs 〉90% @ 790~830nm (Tabs 〉87% @ 720~790nm and 830~880nm)
-Tavg 〈5% @ 820~1200nm
•Spectral Spectral Characteristics Graph