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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. 

Summary of Contents for N28BL7Z

Page 1: ...2 MP Network Dome Camera N28BL7Z Quick Start Guide Version 001 001 Dahua Technology USA Inc...

Page 2: ...Installation 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...

Page 3: ...e 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...

Page 4: ...ng 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...

Page 5: ...e 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...

Page 6: ...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 s...

Page 7: ...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...

Page 8: ...e 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 T...

Page 9: ...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 c...

Page 10: ...ments 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 S...

Page 11: ...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...

Page 12: ...nu 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 trigge...

Page 13: ...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 diagr...

Page 14: ...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...

Page 15: ...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 ala...

Page 16: ...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 sim...

Page 17: ...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 suppo...

Page 18: ...figure 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 represen...

Page 19: ...ording 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 t...

Page 20: ...s 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 activa...

Page 21: ...logy USA Inc 23 Hubble Irvine CA 92618 Tel 949 679 7777 Fax 949 679 5760 Email sales usa global dahuatech com Rev 001 001 2018 Dahua All rights reserved Design and specifications are subject to change...

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