FCC ID: SVN-VTO2211G-WP IP Villa Outdoor Station

Villa Door Station

(Version 4.3) Quick Start Guide

(VTO) Baseline V1.0.0 V1.0.0 Foreword General Safety Instructions This manual introduces the structure, mounting process, and basic configuration of the door station (VTO). The following categorized signal words with defined meaning might appear in the manual. Signal Words Meaning WARNING CAUTION NOTE Indicates a medium or low potential hazard which, if not avoided, could result in slight or moderate injury. Indicates a potential risk which, if not avoided, could result in property damage, data loss, lower performance, or unpredictable result. Provides additional information as the emphasis and supplement to the text. Revision History About the Manual Version Revision Content V1.0.0 First release Release Date March 2020 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 regions. For detailed information, see 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. There still might be deviation in technical data, functions and operations description, or errors in print. If there is any doubt or dispute, please refer to our final explanation. Upgrade the reader software or try other mainstream reader software if the manual (in PDF All trademarks, registered trademarks and the company names in the manual are the format) cannot be opened. properties of their respective owners. occurred when using the device. Please visit our website, contact the supplier or customer service if there is any problem I If there is any uncertainty or controversy, please refer to our final explanation. II Important Safeguards and Warnings The following description is the correct application method of the device. Please read the manual carefully before use to prevent danger and property loss. Strictly conform to the manual during application and keep it properly after reading. Operating Requirement Do not place and install the device in an area exposed to direct sunlight or near heat generating devices. Do not install the device in a humid, dusty or fuliginous area. Keep its horizontal installation, or install it at stable places, and prevent it from falling. Do not drip or splash liquids onto the device; do not put on the device anything filled with liquids to prevent liquids from flowing into the device. Install the device at well-ventilated places; do not block its ventilation opening. Use the device only within rated input and output range. Do not dismantle the device arbitrarily. Transport, use and store the device within allowed humidity and temperature range. Power Requirement will be used. The product shall use electric wires (power wires) required by the region where the device Use power supply that meets SELV (safety extra low voltage) requirements, and supply power with rated voltage that conforms to Limited Power Source in IEC60950-1. For specific power supply requirements, refer to device labels. Appliance coupler is a disconnecting device. During normal use, keep an angle that facilitates operation. FCC Warnings 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, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the III equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body. IV Table of Contents Foreword .................................................................................................................................................... I Important Safeguards and Warnings .................................................................................................... III 1 Network Diagram ................................................................................................................................... 1 2 Appearance ............................................................................................................................................ 2 VTO2101E-P ................................................................................................................................. 2 2.1.1 Front Panel ......................................................................................................................... 2 2.1.2 Rear Panel .......................................................................................................................... 3 VTO3211D-P ................................................................................................................................. 3 2.2.1 Front Panel ......................................................................................................................... 3 2.2.2 Rear Panel .......................................................................................................................... 4 VTO2211G/VTO1201G ................................................................................................................. 6 2.3.1 Front Panel ......................................................................................................................... 6 2.3.2 Rear Panel .......................................................................................................................... 7 3 Installation ............................................................................................................................................ 10 Notice .......................................................................................................................................... 10 Guidance ..................................................................................................................................... 10 4 Configuration ....................................................................................................................................... 11 Configuration Process .................................................................................................................. 11 VDPConfig ................................................................................................................................... 11 Configuring Door Stations (VTO) ................................................................................................. 11 4.3.1 Initialization ........................................................................................................................ 11 4.3.2 Configuring Door Station (VTO) Number ......................................................................... 12 4.3.3 Configuring Network Parameters ..................................................................................... 13 4.3.4 Configuring SIP Server ..................................................................................................... 14 4.3.5 Configuring Call No. and Group Call ................................................................................ 15 4.3.6 Adding Door Station (VTO) ............................................................................................... 15 4.3.7 Adding Room Number ...................................................................................................... 17 Verifying Configuration ................................................................................................................ 19 4.4.1 Calling VTH from VTO ...................................................................................................... 19 4.4.2 Watching Monitoring Videos on the VTH.......................................................................... 19 5 App Installation and Adding Device .................................................................................................. 21 5.1.2 Add through Wired Network .............................................................................................. 23 5.1.3 Add through Soft Access Point (AP) ................................................................................. 24 Cybersecurity Recommendations ................................................................................... 32 V 1 Network Diagram 1 2 Appearance VTO2101E-P 2.1.1 Front Panel VTO2101E-P Table 2-1 Front panel description No. Name MIC Camera Description Inputs audio. Monitors doorway area. IR illunimation light Provides extra IR light for the camera when it is dark. Light sensor Detects ambient lighting condition. Call button Press the button to call VTH or the management center. Speaker Outputs audio. 1 2 3 4 5 6 2 2.1.2 Rear Panel VTO2101E-P No. Name Description Table 2-2 Rear panel description 1 2 3 Network port RS-485 ports Cable tray Connected to the network with network cables. See Figure 2-3 and Table 2-3. You can thread cables through the cable tray. Cable connection Table 2-3 Port description DOOR POWER/485 No. Name No. Name 1 2 3 4 NO NC COM ALARM IN 1 2 3 4

+12V GND RS-485A RS-485B VTO3211D-P 2.2.1 Front Panel Number of buttons on the front panel varies on different models. VTO3211D-P2 has two buttons; VTO3211D-P4 has four buttons. VTO3211D-P4 will be taken as an example. 3 No. Name Description Table 2-4 Front panel description IR illumination light Provides extra IR light for the camera when it is dark. Camera Speaker Call button Monitors doorway area. Outputs audio. Press the button to call VTH or the management center. MIC Inputs audio. 1 2 3 4 5 2.2.2 Rear Panel VTO3211D-P VTO3211D-P 4 No. Name Description Table 2-5 Rear panel description 1 2 Cable ports Cable tray See Figure 2-6 and Table 2-6. You can thread the cable through the cable tray. Cable connection Table 2-6 Cable port description No. Name No. Name 1 2 3 4 5 6 ALM_COM ALM_NO ALM_IN RS485B RS485A DOOR_OPEN 7 8 9 10 11 12 DOOR_FEED DOOR_NC DOOR_COM DOOR_NO GND DC 12V 5 VTO2211G/VTO1201G 2.3.1 Front Panel Front panel of VTO2211G/VTO1201G Table 2-7 Front panel description Name Description Camera 1 2 3 Indicator light. Press the button to call indoor monitor (VTH) or the management center. Off: The device in standby mode;

Solid green: door station (VTO) making a call;

Solid blue: door station (VTO) during a call;

Yellowish green: When you unlock the door through VTH while door station (VTO) is making a call. Bluish red: When you unlock the door through VTH while you are having a call with the door station (VTO);

Green breathing light: The network is disconnected. 4 Card reader (only for VTO2211G). 6 2.3.2 Rear Panel Rear panel of VTO2211G/VTO1201G Table 2-8 Rear panel description No. Description No. Description 1 2 Network port SD card cover 3 4 Ports Tamper button VTO2211G cable connection 7 No. Name No. Name Table 2-9 Port description 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 Alarm input device Alarm output device DC_IN-

DC_IN+

ALARM_IN

+12V_OUT GND GND ALARM_NO RS485B ALARM_COM RS485A Not available DC_IN-

DC_IN+

Not available Not available Not available Not available Not available Not available Not available Not available Not available Not available DOOR1_NC Not available DOOR1_COM Not available DOOR1_NO Not available GND Not available DOOR1_FB Not available GND Not available DOOR1_PUSH Not available Not available Not available Not available Not available Not available Not available Not available Not available Not available Not available Not available VTO1201G cable connection No. Name No. Name Table 2-10 Port description 14 15 16 17 18 19 20 21 22 23 24 25 26 13 14 15 16 17 18 19 20 21 22 23 24 8 No. Name No. Name Table 2-11 Port description 1 2 3 4 5 6 7 8 9 10 11 12 13 DC_IN-

DC_IN+

ALARM_IN

+12V_OUT GND GND ALARM_NO RS485B ALARM_COM RS485A Not available DOOR1_NC Not available 14 15 16 17 18 19 20 21 22 23 24 25 26 DOOR1_COM Not available DOOR1_NO Not available GND Not available DOOR1_FB Not available GND Not available DOOR1_PUSH Magnetic lock Electric lock Connecting lock cables 9 3 Installation Do not install the door station (VTO) at places with condensation, high temperature, grease or dust, chemical corrosion, direct sunlight, or zero shelter. The installation and adjustment must be finished by professionals, and do not disassemble Notice the VTO. Guidance See Figure 3-1 the installation position. The door station (VTO) horizontal angle of view varies with different models, face the center of the door station (VTO) as much as possible. Installation position reference 10 4 Configuration This chapter introduces how to initialize, connect, and make primary configurations to door stations (VTO) and indoor monitors (VTH) to realize basic functions, including device management, calling, and monitoring. For details, see the user manual. Configuration Process Before configuration, check each device and make sure there is no short circuit or open circuit. Plan IP address for each device, and also plan the apartment number and room number you need. Configure door stations (VTO). See "4.3 Configuring Door Stations (VTO)."

Initialize door stations (VTO). See "4.3.1 Initialization."

1) 2) Configure door station (VTO) numbers. See "4.3.2 Configuring Door Station (VTO) 3) Configure door station (VTO) network parameters. See "4.3.3 Configuring Network 4) Configure SIP Server. See "4.3.4 Configuring SIP Server."

5) Configure target room number and group call. See "4.3.5 Configuring Call No. and Numbers."

Parameters."

Group Call."

6) Add door stations (VTO) to the SIP server. See "4.3.6 Adding Door Station (VTO)."

7) Add room number to the SIP server. See "4.3.7 Adding Room Numbers."

Configure indoor monitors (VTH). See the VTH user's manual. Verify Configuration. See "4.4 Verifying Configuration."

VDPConfig You can download the "VDPConfig" and perform device initialization, IP address modification and system upgrading for multiple devices at the same time. For the details, see the corresponding user's manual. Configuring Door Stations (VTO) Connect the door station (VTO) to your PC with network cable, and for first time login, you need to create a new password for the web interface. 4.3.1 Initialization The default IP address of door station (VTO) is 192.168.1.110, and make sure the PC is in the same network segment as the door station (VTO). Connect the door station (VTO) to power source, and then boot it up. 11 Open the internet browser on the PC, then enter the default IP address of the door station (VTO) in the address bar, and then press Enter. Device initialization Enter and confirm the password, and then click Next. The email setting interface is displayed. Select the Email check box, and then enter your Email address. This Email address can be used to reset the password, and it is recommended to finish this setting. Click Next. The initialization succeeded. Click OK. Login interface 4.3.2 Configuring Door Station (VTO) Number The door station (VTO) number can be used to differentiate each door station (VTO), and it is normally configured according to apartment or building number. You can change the number of a door station (VTO) when it is not working as SIP server. The door station (VTO) number can contain 5 numbers at most, and it cannot be the same as any room number. 12 Log in to the web interface of the door station (VTO), and then the main interface is displayed. Main interface Select Local Setting > Basic. Device properties In the No. input box, enter the door station (VTO) number you planned for the door station (VTO) you are operating, and then click Confirm to save. 4.3.3 Configuring Network Parameters Select Network Setting > Basic. TCP/IP information Enter the network parameters you planed, and then click Save. 13 The door station (VTO) will restart, and you need to modify the IP address of your PC to the same network segment as the door station (VTO) to log in again. 4.3.4 Configuring SIP Server The SIP server is required in the network to transmit intercom protocol, and then all the door station (VTO) and indoor monitor (VTH) connected to the same SIP server can make video calls among each other. You can use door stations (VTO) or other servers as SIP server. Select Network Setting > SIP Server. SIP server Select the server type you need. If the door station (VTO) you are visiting works as SIP server Select the Enable check box at SIP Server, and then click Save. The door station (VTO) will restart, and after restarting, you can then add door stations (VTO) and VTH devices to the door station (VTO) you are operating. See

"4.3.6 Adding Door Station (VTO) and 4.3.7 Adding Room Number."

If the door station (VTO) you are visiting does not work as SIP server, do not select the Enable check box at SIP Server, otherwise the connection will fail. If other door station (VTO) works as SIP server Select VTO in the Server Type list, and then configure the parameters. See Table 4-1. Table 4-1 SIP server configuration Parameter Description The IP address of the door station (VTO) which works as SIP server. IP Addr. Port Username Password SIP Domain Keep the default value. 5060 VDP 14 Parameter Description SIP Server Username The user name and password for the web SIP Server Password interface of the SIP server. If other servers work as SIP server Select Express/DSS in the Server Type list, and then see the corresponding manual for the detailed configuration. 4.3.5 Configuring Call No. and Group Call You need to configure call No. on each door station (VTO), and then all the door stations (VTO) can call the defined room when you press the call button. On the SIP server, you can enable group call function, and when calling a master indoor monitor (VTH), the extension indoor monitors (VTH) will receive the call as well. After enabling or disabling group call function the door station will restart. Select Local Setting > Basic. Device properties In the No. input box, enter the room number you need to call, and then click Confirm to save. Repeat this operation on every villa door station (VTO) web interface. Log in to the web interface of the SIP server, and then select Local Setting > Basic. Select the Group Call check box, and then click Confirm. The door station (VTO) will restart, and when calling a master indoor monitor (VTH), the extension indoor monitor (VTH) will receive the call as well. 4.3.6 Adding Door Station (VTO) You can add door stations (VTO) to the SIP server, and all the door stations (VTO) connected to the same SIP server can make video calls among each other. This section applies to the condition in which a door station (VTO) works as SIP server, and if you are using other servers as SIP server, see the corresponding manual for the detailed configuration. Log in to the web interface of the SIP server, and then select Household Setting >

VTO No. Management. 15 VTO No. management Click Add. Add door stations (VTO) Configure the parameters, and be sure to add the SIP server itself too. See Table 4-2. Parameter Description Table 4-2 Add door stations (VTO) Rec No. Build No. Unit No. The door station (VTO) number you configured for the target door station (VTO). See the details in "4.3.2 Configuring Door Station (VTO) Number."

Register Password Keep default value. Available only when other servers work as SIP server. IP Address The IP address of the target door station (VTO). Username Password The user name and password for the web interface of the target door station (VTO). 16 Click Save. 4.3.7 Adding Room Number You can add the planned room number to the SIP server, and then configure the room number on indoor monitors (VTH) to connect them to the network. This section applies to the condition in which a door station (VTO) works as SIP server, and if you use other servers as SIP server, see the corresponding manual for the detailed configuration. The room number can contain 6 digits of numbers or letters or their combination at most, and the room number must be unique. Log in to the web interface of the SIP server, and then select Household Setting >

Room No. Management. Room No. Management Click the Add. 17 Add single room number Configure room information. See Table 4-3. Table 4-3 Room information Description Parameter First Name Last Name Nick Name Room No. Enter the information you need to differentiate each room. The room number you planned. If you use multiple indoor monitors (VTH), the room number of the master indoor monitor (VTH) should be

"room number#0", and the room number of the extension VTH should be "room number#1", "room number#2", and so on. You can have 9 extension indoor monitors (VTH) at most for one master indoor monitor (VTH). Registration Mode Select public, and local is reserved for future use. Registered Password Click Save. Keep the default value. The added room number is displayed. Click to modify room information, and click to delete a room. 18 Verifying Configuration 4.4.1 Calling VTH from VTO Press the call button on the door station (VTO) to start a call with the indoor monitor (VTH). Call screen Tap on the VTH to answer the call. 4.4.2 Watching Monitoring Videos on the VTH In the main interface of the VTH, select Monitor > Door. Door Select a door station (VTO) to watch monitoring videos. 19 Watching monitoring videos 20 5 App Installation and Adding Device Scan the following QR code to download and install the app. Before adding the door station (VTO) to the gDMSS Plus, you need to change IP address of the door station (VTO), make sure that the door station (VTO) and the router are connected to the same network, and connect the door station (VTO) to the power source. On your mobile phone, tap

, and then follow the onscreen instructions until the region selection interface is displayed. Select a region. Tap Done on the upper right corner of the interface. The Live interface is displayed. Live Tap on the upper left corner of the Live interface. The Home interface is displayed. 21 Tap on the Home interface. The Device Manager interface is displayed. Tap on the upper right corner of the Device Manager interface. Device manager Home 22 5.1.2 Add through Wired Network Tap IP/Domain on Figure 5-3. The Add Device interface is displayed. Add device Tap VTO on the Add Device interface. The Add Device interface is displayed. Add device Enter Address (IP address of the door station (VTO)), Device Name, and Device Password. Tap

. 23 The door station (VTO) is added. You can watch videos captured by the door station

(VTO), call the door station (VTO), unlock doors when there is call from the door station

(VTO), and more. Door 5.1.3 Add through Soft Access Point (AP) Connect the door station to the power source. Go to the WLAN interface of your mobile phone. Press and hold the call button on the door station for over 5 seconds until you hear a beep. Connect your phone to the VTO2211G-WP_b67356.. network. 24 Mobile phone WLAN 25 on the upper right corner of the Device Manager interface (see Figure 5-3). Tap Tap SN/Scan on Figure 5-3. Scan the QR code 26 Scan the QR code at the rear cover of the door station. Tap Next. The QR code can also be found in Network > Basic > P2P on the web interface, Tap on the upper right corner. Add device 27 Select network configuration mode Select Switch to AP Configuration. Tap Next. Set phone network Tap Set. 28 Select a Wi-Fi Tap a Wi-Fi name. Enter Wi-Fi password Enter the Wi-Fi password. Tap Next. 29 Enter device name and device password (door station web login password). Tap

. The door station (VTO) is added. You can watch videos captured by the door station

(VTO), call the door station (VTO), unlock doors when there is call from the door station

(VTO), and more. After adding door stations to the App, you need to subscribe messages, and then push notifications can be sent to your phone. Add device 30 Door 31 Cybersecurity Recommendations Cybersecurity is more than just a buzzword: its 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 users 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. 5. Change Default HTTP and Other Service Ports 32 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 7. Enable Whitelist We suggest you to enable HTTPS, so that you visit Web service through a secure communication channel. 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 computers IP address and the accompanying equipments 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 of ARP 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. 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 33 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. 34

IP Villa door Station DHI-VTO2211G-WP 12V 1A,PoE(802.3 af/at) P/N:1.0.01.15.11417 MAC:

AA:BB:CC:11:22:00 WIFI MAC:

AA:BB:CC:11:22:01 S/N:

6M0065EPAG00001 FCC ID:SVN-VTO2211G-WP MADE IN CHINA

Zhejiang Dahua Vision Technology Co., Ltd Date: 2020/07/13 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern:

I, the undersigned, hereby authorize UL-CCIC COMPANY LIMITED to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL-CCIC COMPANY LIMITED on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL-CCIC COMPANY LIMITED as our representative, we still recognize that we are responsible to:

a) comply with the relevant provisions of the certification program;

b) c) d) e) f) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints;

make claims regarding certification only in respect of the scope for which certification has been granted;

do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized;

upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division;

use certification only to indicate the products are certified as being in conformity with specified standards;

g) h) i) j) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner;

ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division;

keep a record of all complaints made known to us relating to the products compliance with requirements of the relevant standard and to make these records available to the when requested;

take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification;

k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by:

Company Name: Zhejiang Dahua Vision Technology Co., Ltd Contact Name: Yolanda chen Title of PersonCertificate Manager Address: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China

Zhejiang Dahua Vision Technology Co., Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: SVN-VTO2211G-WP To Whom It May Concern:

Pursuant to the provisions of Sections 0.457 and 0.459 of the Commissions rules (47 CFR 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Zhejiang Dahua Vision Technology Co., Ltd Contact Name: Yolanda chen Title of PersonCertificate Manager Address: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China Date:2020/7/13