Dahua 42C212TNI User manual

2 MP PTZ In-ceiling Network Camera
42C212TNI
Quick Start Guide
Version 001.001
Dahua Technology USA Inc.

Table of Contents
1Welcome........................................................................................................................1
1.1 Important Safeguards and Warnings.................................................................1
Electrical safety.................................................................................................1
Environmental Precautions...............................................................................2
Operation and Daily Maintenance.....................................................................3
Lifting Appliance Requirement..........................................................................3
Warnings...........................................................................................................3
1.2 FCC Information................................................................................................4
FCC compliance：............................................................................................4
1.3 Legal Notices....................................................................................................4
Copyright...........................................................................................................4
Trademarks.......................................................................................................4
1.4 Disclaimer.........................................................................................................5
2Unpacking......................................................................................................................6
2.1 Parts List...........................................................................................................6
2.2 Tools and Hardware Required..........................................................................6
3Installation and Configuration........................................................................................7
3.1 Framework and Dimensions .............................................................................7
3.2 Wiring................................................................................................................7
3.3 Alarm Setup......................................................................................................8
Alarm Input........................................................................................................8
Alarm Output – Level Application......................................................................8
Alarm Output – Switch Application....................................................................9
3.4 Locally Storing Data..........................................................................................9
4Device Installation .......................................................................................................10
4.1 Preparing the Camera.....................................................................................11
4.2 Mounting the Camera to a Wall.......................................................................11
Mounting the Camera......................................................................................11
5Network Configuration.................................................................................................12
5.1 Network Protocols...........................................................................................12
5.2 Modifying the IP Address................................................................................13
5.3 Using the ConfigTool.......................................................................................13
5.4 Accessing the Web Interface ..........................................................................14
5.5 Configuring Alarms..........................................................................................15
5.6 Configuring Local SD Card Recording............................................................15

1
1 Welcome
This manual offers reference material and general information about the basic operation,
maintenance, and troubleshooting of the Dahua Network PTZ Camera. Read, follow, and retain the
following safety instructions. Heed all warning on the unit and in the operating instructions before
operating the unit. Keep this guide for future reference.
1.1 Important Safeguards and Warnings
Electrical safety
•Install the unit in accordance with the manufacturer’s instructions and in accordance with
applicable local codes.
•All installation and operation must conform to your local electrical safety codes.
•Do not overload outlets and extension cords, which may cause fire or electrical shock.
•Do not place the camera near or in a place where the camera may contact overhead power lines,
power circuits, or electrical lights.
•Ensure power conforms to SELV (Safety Extra Low Voltage) and that the limited power source is
rated AC 24V as specified in IEC60950-1. (Power supply requirement is subject to the device
label).
•All input/output ports are SELV circuits. Ensure that SELV circuits are connected only to other
SELV circuits.
•Ground the unit using the ground connection of the power supply to protect the unit from damage,
especially in damp environments.
•Protect the plug and power cord from foot traffic, being pinched, and its exit from the unit.
•Units with or without an ON/OFF switch have power supplied to the unit whenever the power
cord is inserted into the power source; however, the unit is operational only when the ON/OFF
switch is in the ON position. The power cord is the main power disconnect device for switching
off the voltage for all units.
•Operate the unit only from the type of power source indicated on the label. Before proceeding,
disconnect the power from the cable to be installed into the unit.
•For external power supplied units, use only the recommended or approved power supplies.
•Limited power sources must comply with EN 60950. Substitutions may damage the unit or
cause fire or shock.
•For 24 VAC units, voltage applied to the unit’s input power should not exceed ±25%. User-
supplied wiring must comply with local codes (Class 2 power levels). Do not ground the
supply at the terminals or at the unit’s power supply terminal.
•Contact the local dealer or the power company to verify the correct power supply.
•Do not supply power via the Ethernet connection (PoE) when power is already supplied via the
power connector.
•Do not attempt to service the unit. Opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified personnel.

2
•If the unit is damaged and requires service, unplug the unit from the main AC power supply and
from the PoE supply and refer to qualified service personnel. Damage may include, but is not
limited to:
•The power supply cord or plug is damaged.
•Liquid has spilled in or on the unit.
•An object has fallen on the unit.
•The unit has been dropped and the housing is damaged.
•The unit displays a marked change in performance.
•The unit does not operate in the expected manner when the user correctly follows the proper
operating procedures.
•Ensure a service technician uses replacement parts specified by the manufacturer, or that have
the same characteristics as the original parts. Unauthorized parts may cause fire, electrical
shock, or other hazards. Dahua is not liable for any damage or harm caused by unauthorized
modifications or repairs.
•Perform safety checks after completion of service or repairs to the unit.
•Use attachments and accessories only specified by the manufacturer. Any change or
modification of the equipment, not expressly approved by Dahua, could void the warranty.
•Incorporate a readily accessible disconnect device in the building installation wiring for quick
power disconnect to the camera.
•Dahua assumes no liability or responsibility for any fire or electrical shock caused by improper
handling or installation.
Environmental Precautions
•Do not aim the unit at a strong light source or into direct sunlight to focus. A strong light source
may cause overexposure and may affect the longevity of the CCD or the CMOS sensor.
•Transport, use, and store the unit within the specified temperature and humidity range.
•Do not place the unit in a wet, dusty, extremely hot or an extremely cold environment; and avoid
environments with strong electromagnetic radiation or unstable lighting.
•Never push objects of any kind into this unit through openings as they may touch dangerous
voltage points or cause a short circuit that may result in fire or electrical shock. Take care to not
spill any liquid on the unit.
•Do not use units intended for indoor applications near water, in damp or wet environments, or in
any area classified as a wet location. Do not expose an indoor unit to rain or moisture to reduce
the risk of fire or electric shock.
•Do not block or cover any openings in the unit enclosure. These openings are provided for
ventilation to prevent overheating and to ensure reliable operation. Ensure the unit is placed in
an area with adequate ventilation.
•Do not place the unit near a heat source such as heaters, stoves, radiators or other equipment
that produces heat.
•Pack the unit with standard factory packaging or material of the same quality when transporting
the unit.
•Take care to avoid heavy stress, violent vibration, or water spills to the camera unit during
transportation, storage, and installation.

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Operation and Daily Maintenance
•Do not touch the heat dissipation component of the unit. This part of the unit is hot and may
cause a burn.
•Do not open or dismantle the device; there are no components that a user can fix or replace.
Opening the unit may cause water leakage or expose components to direct light. Contact the
manufacturer or a qualified service representative to service the camera or to replace a
component, including the desiccant.
•Dahua recommends the use of a thunder-proof device in concert with the unit.
•Do not touch the CCD or the CMOS optic sensor. Use a blower to clean dust or dirt on the lens
surface. Use a dry cloth dampened with alcohol and gently wipe away any dust on the lens.
•Use a dry soft cloth to clean the unit’s housing. If the unit is particularly dusty, use water to dilute
a mild detergent, apply the diluted detergent to a soft cloth, then gently clean the device. Finally,
use a dry cloth to wipe the unit dry. Do not use a volatile solvent like alcohol, benzene, or thinner;
or use a strong detergent with abrasives, which may damage the surface coating or reduce the
working performance of the unit.
•Do not touch or wipe a dome cover during installation, this cover is an optical device. Refer to
the following methods clean the dome cover:
•Stained with dirt: Use an oil-free soft brush or blower to gently remove the dirt.
•Stained with grease or fingerprints: Use a soft cloth to wipe gently the water droplet or the oil
from the dome cover. Then, use an oil-free cotton cloth or paper soaked with alcohol or
detergent to clean the lens from the center of the dome to outside. Change the cloth several
times to ensure the dome cover is clean.
Lifting Appliance Requirement
•Select the proper PTZ dome installation mode and use the proper lifting device to safely lift the
camera at the installation site.
•Ensure that the lifting device has the proper capacity to reach the installation height.
•Use the lifting device in accordance with its operating instructions and abide by the device’s
safety precautions.
Warnings
•Change the default password after the initial login to protect the integrity of the network.
•Use the standard accessories provided by the manufacturer and ensure the unit is installed and
commissioned by qualified professionals.
•Protect the lens area from laser radiation when using a laser device to aid in installation and
leveling of the unit.
•Do not supply power via the Ethernet connection (PoE) when power is already supplied via the
power connector.

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1.2 FCC Information
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
•This device may not cause harmful interference;
•This device must accept any interference received, including interference that may cause
undesired operation.
FCC compliance
：
This equipment has been tested and found to comply with the limits for a digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference. This equipment generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio
communication. 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 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.
1.3 Legal Notices
Copyright
This user guide is ©2017, Dahua Technology Company, LTD.
This user guide is the intellectual property of Dahua Technology Company, LTD and is protected by
copyright. All rights reserved.
Trademarks
All hardware and software product names used in this document are likely to be registered
trademarks and must be treated accordingly.

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1.4 Disclaimer
•This user guide has been compiled with great care and the information it contains has been
thoroughly reviewed and verified. The text was complete and correct at the time of printing. This
guide may be periodically updated to reflect changes to the product or to correct previous
information and the content of this guide can change without notice. If you encounter an error or
have any questions regarding the contents of this guide, contact customer service for the latest
documentation and supplementary information. Dahua accepts no liability for damage resulting
directly or indirectly from faults, incompleteness, or discrepancies between this guide and the
product described. Dahua is not liable for any loss caused by installation, operation, or
maintenance inconsistent with the information in this guide.
•Video loss is inherent to all digital surveillance and recording devices; therefore Dahua cannot be
held liable for any damage that results from missing video information. To minimize the
occurrence of lost digital information, Dahua recommends multiple, redundant recording systems,
and adoption of backup procedure for all data.
•Contact the supplier or customer service if you encounter any issue while using this unit.

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2 Unpacking
This equipment should be unpacked and handled with care. If an item appears to have sustained
damage during shipping, notify the shipper immediately.
Verify that all the parts listed below are included. If an item is missing, contact customer support or
your local representative.
The original packing carton is the safest container to transport the unit, in the event the unit must be
returned for service. Retain the carton and all shipping material for future use.
Please refer to the enclosed CD for more details, to view the detailed User’s Manual, and for
configuration software.
2.1 Parts List
Package Item
Quantity
Network PTZ Camera
1
AC24V/1.5A Power Supply
1
PTZ Manual
1
Quick Start Guide
1
Documentation CD
1
Pair of Gloves
2.2 Tools and Hardware Required
Item
Quantity
Screwdriver
1
Bolts
4
Washers
4

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3 Installation and Configuration
3.1 Framework and Dimensions
The following figures show the dimensions of the device in mm (in.). These images are intended
as a reference only.
Figure 3-1
3.2 Wiring
The dome camera includes:
Wire Color
Connection
Power
Red
24 VAC
Yellow/Green
Earth Ground
Black
24 VAC
Video/Control
Black
RJ-45 Ethernet
Alarm
Red
Alarm IN 1
Brown
Alarm IN 2
Yellow/Green
Alarm GND
Blue
Alarm OUT 1
Green
Alarm COM 1
Audio
Red
Audio OUT
White
Alarm IN
Black
Alarm GND

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3.3 Alarm Setup
Certain devices support alarm inputs and outputs, check your specific device for alarm capability.
Alarm Input
Refer to Figure 3-3 for alarm input configuration. The device collects that status of the alarm input port
when the input signal is idle or grounded. If the input signal is connected to the 3.3 V or it is idle then
the device receives the alarm input signal. If input signal is grounded, then no alarm input signal is
detected.
Figure 3-2
Alarm Output – Level Application
Use this alarm output configuration if the output triggers an external device by increasing the voltage.
The alarm must increase the external pull-up resistance to trigger (high level) the device. The
maximum external pull-up level is 5 V and the maximum port current is 5 mA. Once the output
increases the pull-up resistance, the alarm decreases the output voltage to the normal state (low level)
at less than 0.8 V.
Figure 3-3

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Alarm Output – Switch Application
The alarm output drives the external circuit, with a maximum current of 30 mA and a maximum
voltage of 5 V. It is recommended to add a relay if the circuit exceeds the maximum values.
Figure 3-4
3.4 Locally Storing Data
Certain cameras include a SDHC card slot for onboard storage that support a 128 GB Micro SD card.
Dahua recommends using a SanDisk Extreme Micro SD card (or an equivalent substitute) as these
cards have been fully tested without issue and the SanDisk Extreme line is better suited for constant
recording. Lower-grade SD cards meant for multimedia applications will, at times, have questionable
quality and reliability. 
Recording to the SD card is first in first out (FIFO). The camera deletes the oldest (first) entry as new
storage requirements arise. The camera does not signal nor make an indication when data is deleted.
Storage time is dependent on a variety of factors such as SD card size, image resolution and video
frames per second. 
SD Recording supports video only. Audio is not supported. 

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4 Device Installation
This section details installing the camera into a solid indoor ceiling.
Note:
•The ceiling must be between 10.0 mm to 40.0 mm (0.40 in. to 1.57 in.) thick.
•The ceiling must be capable of supporting a minimum of eight (8) times the weight of the camera
and bracket.
DO NOT connect the camera to the power supply during installation.
Figure 4-1
Warning: DO NOT connect the camera to the power supply during installation.
Warning: For units intended to be installed outdoors: All wiring connecting to the unit must be routed
separately inside a different permanently earthed metal conduits (not supplied).
Warning: Install external interconnecting cables in accordance to NEC, ANSI/NFPA70 (for US
application) and Canadian Electrical Code, Part I, CSA C22.1 (for CAN application) and in
accordance to local country codes for all other countries. Branch circuit protection incorporating a 20
A, 2-pole Listed Circuit Breaker or Branch Rated Fuses are required as part of the building installation.
A readily accessible 2-pole disconnect device with a contact separation of at least 3 mm must be
incorporated.
Note: Dahua recommends attaching a “drip loop” (flex or hard conduit) during installation to ensure
condensation does not form in the mount or the conduit.
Note: 24 VAC Class 2 power supply only.

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4.1 Preparing the Camera
1. Remove the camera, the mount accessories and any hardware packages from the boxes.
2. Remove the camera from the plastic wrapping.
3. Use the hex key to remove the three screws that secure the dome bubble to the camera housing.
4. Remove the bubble and then remove the protective foam ring surrounding the camera.
5. Insert a MicroSD card (maximum 128 GB) into the SD slot, if using local storage, located below
the lens.
4.2 Mounting the Camera to a Wall
Mounting the Camera
1. Determine the placement of the camera, then affix the ceiling installation template to the
location to mark the location.
2. Cut a hole in the ceiling according to the template.
3. Connect the composite cables from the camera to the external cabling and then carefully
push the cable through the hole and into plenum.
4. Insert the in-ceiling bracket and the camera components into the hole.
5. Secure the screws into the ceiling and then fasten the mount plate.
6. Fasten the decorative cover to the bracket using the three screws.
7. Make the proper wiring connections and supply power to the camera. Refer to Section 3.2 -
Wiring. Wiring

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5 Network Configuration
Dahua IP cameras feature a built-in Web interface to control all aspects of camera operation. This
section includes details about the supported network protocols, configuring IP addresses, and
configuring alarms and local recording options. Refer to the camera’s Operations Manual for full
details.
5.1 Network Protocols
Dahua cameras support RTSP, RTP/TCP, RTP/UDP, HTTP, DHCP, TFTP, QoS, IP version 4 (IPv4)
and IP version 6 (IPv6).
RTSP –Cameras communicate with video management systems over Real Time Streaming Protocol.
Do not change the RTSP port unless you are sure your VMS does not use the default setting.
RTP/TCP –The Real-time Protocol/Transmission Control Protocol is best suited for applications that
require high reliability, and transmission time is relatively less critical.
RTP/UDP –The Real-time Protocol/User Datagram Protocol is used for live unicast video, especially
when it is important to always have an up-to-date video stream, even if some images are dropped.
HTTP –The Hypertext Transfer Protocol is an application protocol for distributed, collaborative,
hypermedia information systems.
DHCP –The Dynamic Host Configuration Protocol allows network administrators to centrally manage
and automate the assignment of IP addresses. DHCP should only be enabled if using dynamic IP
address notification, or if the DHCP can update a DNS server.
TFTP –The Trivial File Transfer Protocol is a simple, lock-step, File Transfer Protocol which allows a
client to get from or put a file onto a remote host. TFTP lacks security and most of the advanced
features offered by more robust file transfer protocols such as File Transfer Protocol.
QoS – Quality of Service guarantees a certain level of a specified resource to selected traffic on a
network. A QoS-aware network prioritizes network traffic and provides a greater network reliability by
controlling the amount of bandwidth an application may use.
IPv4 – The IPv4 (IP version 4) is enabled by default and obtains the IP address automatically. The
address can be used to allow or block network traffic that matches a specified address or protocol.
The IP address must be valid for the network. For more information, contact your network
administrator.
IPv6 – A typical IPv6 (IP version 6) node address consists of a prefix and an interface identifier (total
128 bits). The prefix is the part of the address where the bits have fixed values or are the bits that
define a subnet. A typical IPv6 address may resemble the following example: 2001:db8: :52:1:1. The
IP address must be valid for the network. Before making changes to the IPv6 address, consult with
your network administrator.

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5.2 Modifying the IP Address
To operate the camera in your network you must assign it a valid network IP address. The default IP
address is 192.168.1.108, but you may have to change this address if it conflicts with another device
on the network.
To properly configure the camera for your network, you need the following information:
•Camera IP address – This address is an identifier for the camera on an IP network. For example,
140.11.2.115 is valid syntax for an IP address.
•Subnet mask – A mask is used to determine the subnet an IP address belongs to.
•Gateway IP address – This address is a node on a network that serves as an entrance to
another network.
•Port – A port is an endpoint to a logical connection in an IP network.
Dahua supplies the ConfigTool to access and to modify the network settings of a device. Refer to the
Operation Manual, available on the CD included with the camera or on Dahuasecurity.com, for
complete information.
Notes:
•Ensure that the network parameters of each camera is available before starting configuration.
•The ConfigTool supports those cameras that are part of the same network that as the computer
running the ConfigTool.
5.3 Using the ConfigTool
1. Install the ConfigTools.exe on a computer.
1. Adjust the computer’s network settings so that it is on the same network as the camera.
2. Launch the ConfigTool to generate a list of devices on the network.
3. Double click the device to be configured, the ConfigTool opens the Login dialog box for the device.
4. Enter the IP address, Username, Password, and Port number of the camera, then click OK. Note:
the default Username and Password for the device is “admin” and “admin” respectively. The
default port is 37777.
Figure 5-1

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5. Click the Net icon at the top of the ConfigTool.
6. Modify the IP Address and any other applicable network parameter.
7. Click Save to finish modification and store the modified network parameters.
Figure 5-2
5.4 Accessing the Web Interface
Each camera can be accessed directly from the Internet Explorer Web browser. The Web Interface
allows you to set camera parameter, configure alarm inputs and outputs, view live camera images,
and review recorded video.
Note: Different devices may have different Web interfaces, the figures below are for reference only,
and may not represent the Web Interface for your camera. Refer to the Web Operation Manual,
included on the CD shipped with the camera, for more details.
1. Launch Internet Explorer and type the modified camera IP address in the address bar. Internet
Explorer opens the Login page.
8. Type the Username and Password for the camera. (The default Username and Password is
“admin”). Then, click Login.
Figure 5-3
9. Install the controls according to the system prompt. Once the controls are installed IE displays the
Web Interface main page.
10. Modify the administrator password as soon as possible after you successfully logged in.

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5.5 Configuring Alarms
The device’s Web Interface offers a Relay Activation page to configure alarms and to set alarm
responses.
Figure 5-4
1. Access the Web Interface for the device and click the Setup tab. Expand the Event menu, then
choose the Alarm page. Set the alarm input and output parameters in the Relay Activation page.
2. Set the parameters for the alarm inputs. Check the Enable box to activate the chosen alarm input
(Alarm 1 or Alarm 2). Set the sensor type for the alarm, either Normally Open (NO) or Normally
Closed (NC).
3. Check the Relay Out box to enable the alarm activation function.
4. Select an alarm output port to activate a corresponding alarm device when an alarm occurs.
Check Send Email to have the device send an email to alert when alarm occurs and ends. Check
Snapshot to have the device automatically take a snapshot of the scene if alarm occurs.
5.6 Configuring Local SD Card Recording
The devices Web interface contains settings to control the recording medium and to configure an
alarm that triggers once the Micro SD card passes a pre-determined storage.
1. Access the Web Interface for the device and click the Setup tab. Expand the Storage menu, then
choose the Destination page.
Figure 5-5

16
2. Select the recording medium for each event Recorded and Snapshot event, Scheduled, Motion
Detect and Alarm. Select the Local check box to record an event to the Micro SD card.
3. Click the Local tab to view the used capacity and the total capacity of the Micro SD card.
Figure 5-6
4. Expand the Event menu, located at the left of the Web interface, then select the Abnormality page
to set alarms related to the Micro SD card. The contains the following Micro SD card alarm
options:
•No SD Card: Device triggers an alarm if the device does not contain a Micro SD card.
•Capacity Warning: Device triggers an alarm when the data on the Micro SD card passes a
defined threshold.
•SD Card Error: Device triggers an alarm if it detects an issues writing data or retrieving data
from the Micro SD card.
Figure 5-7
5. Select the event from the Event Type pull-down menu (No SD Card, Capacity Warning, SD Card
Error).
6. Check the Enable box to activate the alarm for this event.
7. Check the Relay-out box to enable a relay alarm. Then, specify the time in seconds to delay the
alarm relay output (10 s to 300 s).

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8. Check the Send Email box to send an email to a specified user after the device triggers an alarm.
9. Set the capacity limit for the Micro SD Card (available with the Capacity Warning event type). The
device triggers an alarm once the amount of data on the card surpasses this limit.
Figure 5-8

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Dahua Technology USA Inc.
23 Hubble, Irvine, CA 92618
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Rev 001.001 © 2018 Dahua. All rights reserved. Design and specifications are subject to change withoutnotice.