Dahua Technology N28BL7Z User manual

2 MP Network Dome Camera
N28BL7Z
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
Warnings...........................................................................................................3
1.2 FCC Information................................................................................................4
FCC compliance：............................................................................................4
1.3 Legal Notices....................................................................................................4
Copyright...........................................................................................................4
Trademarks.......................................................................................................4
1.4 Disclaimer.........................................................................................................4
2Unpacking......................................................................................................................5
3Installation and Configuration........................................................................................6
3.1 Cable Connections............................................................................................6
3.2 Alarm I/O Connections......................................................................................7
3.3 Framework and Dimensions .............................................................................8
3.4 Locally Storing Data..........................................................................................8
3.5 Bi-directional Talk..............................................................................................8
3.6 Alarm Setup......................................................................................................9
Alarm Input........................................................................................................9
Alarm Output.....................................................................................................9
Alarm Connections............................................................................................9
4Device Installation .......................................................................................................11
4.1 Installing the Camera......................................................................................12
5Network Configuration.................................................................................................14
5.1 Network Protocols...........................................................................................14
5.2 Modifying the IP Address................................................................................15
5.3 Using the ConfigTool.......................................................................................15
5.4 Accessing the Web Interface ..........................................................................16
5.5 Configuring Local SD Card Recording............................................................17

1
1 Welcome
This manual offers reference material and general information about the basic operation,
maintenance, and troubleshooting of this Dahua 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.

3
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.
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.

4
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 ©2018, 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.
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.

5
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.
Package Item
Quantity
Network Camera
1
PFA138 Junction Box
1
Hardware Package
1
Expansion Bolts
3
Screws
3
Torx Wrench
1
Waterproof Network Connector
1
Quick Start Guide
1
Documentation CD
1

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3 Connections and Configuration
3.1 Camera Components
Figure 3-1
Ref
Description
1 Vandal-resistant Dome
2 Dome Body
3.2 Cable Connections
Figure 3-2
Ref
Port Name
Function
Notes
1 Zoom W Wide-angle
Adjust the lens to the wide-angle end (minimum
zoom).
2
RESET
Reset button
Restores device to factory default settings.
3 Zoom T Telephoto
Adjust the lens to the telephoto end (maximum
zoom).
4 VIDEO_OUT Video output Output analog video signal to a TV monitor.

7
Ref
Port Name
Function
Notes
5
Micro SD
Micro SD slot
Insert a Micro SD card for local storage.
6 I/O I/O port
Alarm signal input/output and Audio input/output
connections.
7 Power Power Input Port
Power port, input 12 VDC or 24 VAC.
Note:
•Connect the default DC5.5 round port to 2-
pin converter cable when using 24 VAC
power.
•Use in accordance with device label
instructions.
8 LAN Network Port
Connect to standard Ethernet cable.
Note: Certain devices support Power over
Ethernet. Check the specific device to determine
if the device accepts PoE and use an appropriate
Ethernet cable and network to supply power.
3.3 Alarm I/O Connections
Refer to the following table for detailed Alarm I/O pin information:
Pin Name Note
OUT
Alarm output port. Outputs the alarm signal to the alarm device.
NO: normal open alarm output port.
It must be used with ALARM_COM.
IN
Alarm input port 1. Receives the on-off signal from the external alarm
source.
ALARM_GND Ground port

8
3.4 Framework and Dimensions
The following figures show the dimensions of the device in mm [in.]. These images are intended
as a reference only.
Figure 3-3
3.5 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. 
3.6 Bi-directional Talk
1. Connect the speaker or the microphone to the Audio Input on the camera and to the input port on
the computer.
2. Connect the earphone to the Audio Output on the camera and to the output port on the computer.
3. Launch Internet Explorer and type the camera IP address in the address bar. Internet Explorer
opens the Login page.
4. Type the Username and Password for the camera. (The default Username and Password is
“admin”). Then, click Login.
5. Click the Talk button to enable bi-directional talk. The button turns orange to indicate the bi-
directional talk is enabled. Click the Talk button a second time to disable the bi-directional talk.

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3.7 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 3-4
Alarm Output
The ports ALARM_OUT and ALARM_OUT_GND form a switch that is used to provide alarm output.
Normally the switch is on. The switch turns off when there is alarm output.
Figure 3-5
Alarm Connections
1. Connect the alarm input device to the ALARM_IN or to the ALARM_IN_2 connectors.
2. Connect the alarm output device to the ALARM_OUT and to ALARM_GND connectors. Note: the
ALARM_OUT port is the relay switch output. Connect only a Normally Open (NO) alarm device to
the ALARM_OUT port.
3. Launch Internet Explorer and type the camera IP address in the address bar. Internet Explorer
opens the Login page.

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4. Type the Username and Password for the camera. (The default Username and Password is
“admin”). Then, click Login.
5. Navigate to the Alarm page, under the Event menu item.
Figure 3-6
6. Set the alarm input and output parameters. Set the Sensor Type to NO or NC for each alarm
input. The alarm input set corresponds to the device I/O port cable. When an alarm is triggered,
the alarm input device generates a high- and low-level signal.
7. Set the alarm output (or relay out) parameters for the device connected to the ALARM_OUT port.

11
4 Device Installation
This section details installing the camera to a wall or to a ceiling. Note that the wall or ceiling must be
capable of supporting a minimum of three times the weight of the camera and a bracket (if used).
DO NOT connect the camera to the power supply during installation.
The following installation diagrams are for reference only. Please refer to the illustration that
corresponds to your particular camera.
Figure 4-1
Figure 4-2

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4.1 Installing the Camera
1. Remove the camera and the hardware package from the box. Remove the PFA138 Junction
Box, mounting template, and hardware package from its box.
2. Use the Torx key, from the hardware pack, to unscrew the three tamper-proof screws on the
dome enclosure, and remove the dome enclosure. Save the screws.
3. Insert a MicroSD card into the SD Card Slot, if using for local recording.
Figure 4-3
4. Determine the route of the cables; either through the installation medium and into the junction
box or through the side exit on the dome body.
5. Apply the junction box mounting template to the installation medium. Pre-drill the four
perimeter holes as marked on the template for the expansion bolts, using a drill bit that is no
wider than the expansion bolt.
6. Drill the center hole to route the cables from the camera through the installation medium, if
you plan to route the cable through the installation medium.
7. Insert an expansion bolt into each pre-drilled perimeter hole.
8. Secure the junction box to the installation medium with the four self-tapping screws.
9. Attach the waterproof network connector if the camera is used outdoors.
Figure 4-4
a) Place the wide side of the rubber ring onto the end of the network cable extending out
from the camera.
b) Pull the waterproof cable end without the Ethernet connector through the body of the
Waterproof Connector. Thread the cable through the Fixing Rubber Ring and the
Waterproof Locking Cover.

13
c) Attach the male Ethernet connector to the network cable coming from the camera. Ensure
the Waterproof Connector shroud covers the Ethernet connection.
d) Connect the other end of the waterproof connector to the network port and rotate it
clockwise to lock the network port and waterproof connector firmly.
e) Slide the Waterproof Locking Cover over the main body of waterproof connector and
rotate it clockwise to seal the connection.
10. Route the power and Ethernet cables from the back of the camera through the junction box
and installation medium or through the side exit on the junction box. Note: It is recommended
to route cables through a metal conduit for outdoor applications.
11. Route the incoming audio, alarm, and auxiliary video cables through the center hole or
through the side exit on the junction box. Note: It is recommended to route cables through a
metal conduit for outdoor applications.
12. Connect the appropriate incoming and outgoing audio cables to the AUDIO_IN and the
AUDIO_OUT connectors.
13. Connect an alarm output device to the ALARM_OUT port and to the ALARM_GND port on
the I/O terminal. Note the alarm output is a Normally Open (NO) connection.
14. Connect an alarm input device to the ALARM_IN port on the I/O terminal.
15. Connect the auxiliary video out cable, if using.
16. Align the screw holes on the camera body with the installation holes on the junction box.
17. Secure the camera body to the junction box with the four screws.
18. Adjust the camera and the lens according to the application requirements of the location.
a) Loosen, but do not remove, the locking screw on the side of the rotation bracket.
b) Tilt the camera to adjust the tilt angle (0° to +65°). Tighten the locking screw on the
bracket to lock the tilt angle.
c) Rotate the bracket to adjust the pan angle (0° to +355°).
d) Rotate the top of the camera to adjust image pan orientation (0° to +355°).
Figure 4-5
19. Ensure the tether is secured to the camera body and to the dome cover.
20. Place the dome cover over the camera and align the holes on the cover to the holes and
pedestal. Insert a Torx bolt into each hole and secure the cover to the pedestal with the Torx
key.
21. Supply power to the camera.

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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.

15
5.2 Modifying the IP Address
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.
2. Adjust the computer’s network settings so that it is on the same network as the camera.
3. Launch the ConfigTool to generate a list of devices on the network.
4. Double click the device to be configured, the ConfigTool opens the Login dialog box for the
device.
5. 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

16
6. Click the Net icon at the top of the ConfigTool.
7. Modify the IP Address and any other applicable network parameter.
8. 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.
2. Type the Username and Password for the camera. (The default Username and Password is
“admin”). Then, click Login.
Figure 5-3

17
3. Install the controls according to the system prompt. Once the controls are installed IE displays
the Web Interface main page.
4. Modify the administrator password as soon as possible after you successfully logged in.
5.5 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 5-4
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 5-5

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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 5-6
5. Select the event from the Event Type pull-down menu (No SD Card, Capacity Warning, and 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).
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 5-7