Dahua DHI-ITARD-024MA-H User manual

Multilane Radar Detector
User’s Manual
V1.0.0
V1.0.0
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.

User’s Manual
I
Foreword
General
This manual introduces the functions and operations of the multilane radar detector (hereinafter
referred to as the "Radar").
Model
DHI-ITARD-024MA-H
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words
Meaning
WARNING
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
TIPS
Provides methods to help you solve a problem or save you time.
NOTE
Provides additional information as the emphasis and supplement
to the text.
Revision History
Version
Revision Content
Release Time
V1.0.0
First release.
July 2020
About the Manual
The manual is for reference only. If there is inconsistency between the manual and the
actual product, the actual product shall prevail.
We are not liable for any loss caused by the operations that do not comply with the manual.
The manual would be updated according to the latest laws and regulations of related
jurisdictions. For detailed information, refer to the paper manual, CD-ROM, QR code or our
official website. If there is inconsistency between paper manual and the electronic version,
the electronic version shall prevail.
All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.

User’s Manual
II
There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, we reserve the right of final explanation.
Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the manual are the
properties of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurring when using the device.
If there is any uncertainty or controversy, we reserve the right of final explanation.

User’s Manual
III
Important Safeguards and Warnings
The Radar is a high-technology product that requires professional operations. Read the user's
manual carefully before using the Radar, or contact professionals or technical support if you
have any doubts. Specifically:
Use high-quality DC power supply to avoid crosstalk from other devices.
During storage and use, avoid damage caused by impact or fall. Take appropriate lightning
protection measures when using outdoors.
The interfaces provided by the radar are not hot-swap interfaces.When connecting, please
power off before operation to avoid accidental burnout.
The RS–485 and RS–232 interfaces of the Radar are not hot-swap interfaces. Power off
the Radar before connecting these interfaces to avoid accidental burnout.

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Table of Contents
Foreword.................................................................................................................................................... I
Important Safeguards and Warnings.................................................................................................... III
1 Product Introduction............................................................................................................................. 1
Overview....................................................................................................................................... 11.1 Features........................................................................................................................................ 11.2 Appearance................................................................................................................................... 11.3
2 Cable Connection.................................................................................................................................. 2
3 Installation.............................................................................................................................................. 3
Installation Modes......................................................................................................................... 3
3.1 Notes to Installation ...................................................................................................................... 33.2 3.2.1 Adjusting Elevation Angle of Radar.................................................................................... 3
3.2.2 Adjusting Azimuth Angle of Radar ...................................................................................... 5
4 FAQ ......................................................................................................................................................... 7
Cybersecurity Recommendations..................................................................................... 8Appendix 1

User’s Manual
1
1 Product Introduction
Overview1.1
The Radar can be installed above the lane to detect vehicles 15 m–45 m (49.2 ft–147.6 ft) away
and cover vehicles of 1–4 lanes. It will send capture signals to the camera when the vehicle
approaches the specific position, and also detect the vehicle speed and the lane that the
vehicle is driving on.
Features1.2
One single radar covers up to 32 vehicles of 1–4 lanes.
Precisely detects speed and position of vehicles when they are 18 m–35 m (59.1 ft–
114.8 ft) away.
Flexible to install: Either installed right above the lane or at the side of a lane.
Special functions such as illegal lane change, wrong-way driving detection.
The detection performance is not impaired by adjacent lane or vehicles in front of or
behind the vehicle of interest.
All-weather working, and detection performance is immune to glaring sunlight, dense
fog or other adverse weather and lighting conditions.
High capture rate:About 99% when traffic is smooth, and 96% and 92% respectively
when traffic is saturated and congested.
Accurate positioning: The position accuracy of triggering capture signal is as high as
±0.5 m (1.6 ft).
Appearance1.3
Product appearanceFigure 1-1

User’s Manual
2
2 Cable Connection
When using RS–232 transmission, the cable length cannot be more than 15 m (49.2 ft).
Use RS–485 to communicate over medium and long distance. Make sure that the shielded
twisted pair cable is used, and the shield layer of the cable is grounded. When the transmission
distance is more than 300 m (984.3 ft), terminal resistance (generally 120 Ω) is required.
CableFigure 2-1
Table 2-1 Cable description
Pin Color
Description
Blue
RS–232T, RS–485-
Green
RS–232R, RS–485+
Yellow
GND
Red
DC 12V+ power input
Black
DC GND

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3
3 Installation
Installation Modes3.1
Based on the vehicle movement direction, three installation modes are available: Approaching
(detects head of vehicles), receding (detects tail of vehicles), and both directions (detects either
head or tail, depending on the vehicle movement direction).
The Radar can either be installed right above the lane, or at the side of a lane.
Notes to Installation3.2
When installing the Radar, make sure that:
Keep the Radar as horizontal as possible. Check whether the leveling bubble on the rear
panel of the Radar is in the middle. If not, fine-tune the installation angle of the Radar.
Keep the Radar horizontalFigure 3-1
The radar beams can cover the entire area to be detected.
When the installation height is confirmed and the Radar is kept at horizontal position, the
Radar coverage depends on the elevation angle and the azimuth angle.
3.2.1 Adjusting Elevation Angle of Radar
The elevation angle of the Radar refers to the angle between the normal line of the front cover
and the horizontal line.

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Adjust elevation angle of RadarFigure 3-2
How to adjust the elevation angle of the Radar:
Measure the elevation angle by using a protractor, and then adjust the angle (if necessary)
according to Table 3-1, Table 3-2, and Table 3-3.
Table 3-1 Typical elevation angle in approaching mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
19 (62.3)
12°
14°
16°
19°
21 (68.9)
12°
14°
16°
17°
23 (75.5)
12°
13°
15°
16°
25 (82.0)
11°
13°
15°
15°
27 (88.6)
11°
13°
14°
15°
29 (95.1)
11°
13°
14°
15°
Table 3-2 Typical elevation angle in receding mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
25 (82.0)
16°
18°
20°
22°
26 (85.3)
15°
17°
19°
21°
28 (91.9)
14°
16°
18°
20°
30 (98.4)
14°
15°
17°
19°
32 (105.0)
13°
15°
16°
17°
Table 3-3 Typical elevation angle in both-direction mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
25 (82.0)
13°
15°
170°
19°
27 (88.6)
12°
14°
16°
18°
29 (95.1)
11°
13°
15°
17°
Adjust the elevation angle by using a laser pointer.

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Put the bottom of the laser pointer on the middle of the front cover, and then adjust the
elevation angle of the Radar, until the laser spot is located at the distance shown in Table
3-4, Table 3-5, and Table 3-6.
Table 3-4 Radar beam transmitting distance in approaching mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
19 (62.3)
23 (75.5)
24 (78.7)
24 (78.7)
24 (78.7)
21 (68.9)
23 (75.5)
24 (78.7)
24 (78.7)
26 (85.3)
23 (75.5)
23 (75.5)
26 (85.3)
26 (85.3)
28 (91.9)
25 (82.0)
26 (85.3)
26 (85.3)
26 (85.3)
30 (98.4)
27 (88.6)
26 (85.3)
26 (85.3)
26 (85.3)
30 (98.4)
29 (95.1)
26 (85.3)
26 (85.3)
26 (85.3)
30 (98.4)
Table 3-5 Radar beam transmitting distance in receding mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
25 (82.0)
18 (59.1)
19 (62.3)
19 (62.3)
20 (65.6)
26 (85.3)
19 (62.3)
20 (65.6)
20 (65.6)
21 (68.9)
28 (91.9)
20 (65.6)
21 (68.9)
22 (72.2)
22 (72.2)
30 (98.4)
20 (65.6)
22 (72.2)
23 (75.5)
23 (75.5)
32 (105.0)
22 (72.2)
22 (72.2)
24 (78.7)
26 (85.3)
Table 3-6 Radar beam transmitting distance in both-direction mode (m (ft))
Capture Distance
Installation Height
5 (16.4)
6 (19.7)
7 (23.0)
8 (26.3)
25 (82.0)
21.5 (70.5)
22.5 (73.8)
23 (75.5)
23 (75.5)
27 (88.6)
23.5 (77.1)
24 (78.7)
24.5 (80.4)
24.5 (80.4)
29 (95.1)
25 (82.0)
26 (85.3)
26 (85.3)
26 (85.3)
3.2.2 Adjusting Azimuth Angle of Radar
The azimuth angle of radar refers to the angle between the normal line of the front cover and
the direction of moving vehicles. The broken yellow lines represent the boundaries of the radar
beam, while the blue line represents the central line of the radar beam.
When the Radar is installed right above the lane, make sure that the radar beam is as parallel
as possible to the vehicle movement direction. See Figure 3-3.
For roadside installation, make sure that the center of the radar beam is aimed at the middle
area of the detected lane. See Figure 3-4. Use a laser pointer to help you aim the radar beam at
the middle area of the detected lane.

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Top view of radar beam when Radar is installed above the laneFigure 3-3
Top view of radar beam with roadside installationFigure 3-4

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4 FAQ
Question
Solutions
The Radar does not
work after being
powered on
1) Check power connection and voltage
2) Check whether the positive and negative electrodes of power module
are correctly connected
3) Check communication cable connection
4) Check the data receive interface, or the software can work properly
5) Check the serial port settings of the program
Messy code
1) Check communication cable connection
2) Check baud rate settings
3) Check EMC/EMI
The Radar does not
capture targets
1) Check the elevation angle and the azimuth angle of the Radar. Make
sure that the area to be detected is fully covered by the radar beam
2) Compare the animation and the real trajectory of the vehicles
3) Check whether the capture distance is reasonable
4) Check whether the threshold is set too high
Vehicles are not
captured
1) Check whether there are strong EMI source around the Radar
2) Check the elevation angle and the azimuth angle of the Radar. Make
sure that the area to be detected is fully covered by the radar beam
3) Check whether the threshold is set too high
Missed capture
1) Check the elevation angle and the azimuth angle of the Radar. Make
sure that the area to be detected is fully covered by the radar beam
2) Compare the animation and the real trajectory of the vehicles
3) Check whether the capture distance is reasonable
4) Check whether the threshold is set too low

User’s Manual
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Cybersecurity RecommendationsAppendix 1
Cybersecurity is more than just a buzzword: it’s something that pertains to every device that is
connected to the internet. IP video surveillance is not immune to cyber risks, but taking basic
steps toward protecting and strengthening networks and networked appliances will make them
less susceptible to attacks. Below are some tips and recommendations on how to create a
more secured security system.
Mandatory actions to be taken for basic equipment network security:
1. Use Strong Passwords
Please refer to the following suggestions to set passwords:
The length should not be less than 8 characters;
Include at least two types of characters; character types include upper and lower case
letters, numbers and symbols;
Do not contain the account name or the account name in reverse order;
Do not use continuous characters, such as 123, abc, etc.;
Do not use overlapped characters, such as 111, aaa, etc.;
2. Update Firmware and Client Software in Time
According to the standard procedure in Tech-industry, we recommend to keep your
equipment (such as NVR, DVR, IP camera, etc.) firmware up-to-date to ensure the
system is equipped with the latest security patches and fixes. When the equipment is
connected to the public network, it is recommended to enable the "auto-check for
updates" function to obtain timely information of firmware updates released by the
manufacturer.
We suggest that you download and use the latest version of client software.
"Nice to have" recommendations to improve your equipment network security:
1. Physical Protection
We suggest that you perform physical protection to equipment, especially storage devices.
For example, place the equipment in a special computer room and cabinet, and implement
well-done access control permission and key management to prevent unauthorized
personnel from carrying out physical contacts such as damaging hardware, unauthorized
connection of removable equipment (such as USB flash disk, serial port), etc.
2. Change Passwords Regularly
We suggest that you change passwords regularly to reduce the risk of being guessed or
cracked.
3. Set and Update Passwords Reset Information Timely
The equipment supports password reset function. Please set up related information for
password reset in time, including the end user’s mailbox and password protection
questions. If the information changes, please modify it in time. When setting password
protection questions, it is suggested not to use those that can be easily guessed.
4. Enable Account Lock
The account lock feature is enabled by default, and we recommend you to keep it on to
guarantee the account security. If an attacker attempts to log in with the wrong password
several times, the corresponding account and the source IP address will be locked.

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5. Change Default HTTP and Other Service Ports
We suggest you to change default HTTP and other service ports into any set of numbers
between 1024~65535, reducing the risk of outsiders being able to guess which ports you
are using.
6. Enable HTTPS
We suggest you to enable HTTPS, so that you visit Web service through a secure
communication channel.
7. Enable Whitelist
We suggest you to enable whitelist function to prevent everyone, except those with
specified IP addresses, from accessing the system. Therefore, please be sure to add your
computer’s IP address and the accompanying equipment’s IP address to the whitelist.
8. MAC Address Binding
We recommend you to bind the IP and MAC address of the gateway to the equipment,
thus reducing the risk ofARP spoofing.
9. Assign Accounts and Privileges Reasonably
According to business and management requirements, reasonably add users and assign a
minimum set of permissions to them.
10. Disable Unnecessary Services and Choose Secure Modes
If not needed, it is recommended to turn off some services such as SNMP, SMTP, UPnP,
etc., to reduce risks.
If necessary, it is highly recommended that you use safe modes, including but not limited to
the following services:
SNMP: Choose SNMP v3, and set up strong encryption passwords and authentication
passwords.
SMTP: Choose TLS to access mailbox server.
FTP: Choose SFTP, and set up strong passwords.
AP hotspot: Choose WPA2-PSK encryption mode, and set up strong passwords.
11. Audio and Video Encrypted Transmission
If your audio and video data contents are very important or sensitive, we recommend that
you use encrypted transmission function, to reduce the risk of audio and video data being
stolen during transmission.
Reminder: encrypted transmission will cause some loss in transmission efficiency.
12. Secure Auditing
Check online users: we suggest that you check online users regularly to see if the
device is logged in without authorization.
Check equipment log: By viewing the logs, you can know the IP addresses that were
used to log in to your devices and their key operations.
13. Network Log
Due to the limited storage capacity of the equipment, the stored log is limited. If you need
to save the log for a long time, it is recommended that you enable the network log function
to ensure that the critical logs are synchronized to the network log server for tracing.
14. Construct a Safe Network Environment
In order to better ensure the safety of equipment and reduce potential cyber risks, we
recommend:
Disable the port mapping function of the router to avoid direct access to the intranet
devices from external network.

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The network should be partitioned and isolated according to the actual network needs.
If there are no communication requirements between two sub networks, it is
suggested to use VLAN, network GAP and other technologies to partition the network,
so as to achieve the network isolation effect.
Establish the 802.1x access authentication system to reduce the risk of unauthorized
access to private networks.
It is recommended that you enable your device's firewall or blacklist and whitelist
feature to reduce the risk that your device might be attacked.

User’s Manual

Federal Communications Commission (FCC) Interference Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy, and if it
is not installed and used in accordance with the instruction manual, it may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case the user will be required to correct the interference
at his own expense.
FCC Caution: Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
RF exposure warning
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment.