Dahua Network Video Recorder User’s Manual V 2.4.
Table of Contents 1 Features and Specifications ...............................................................................................................1 1.1 Overview ........................................................................................................................................1 1.2 Features.........................................................................................................................................1 1.3 Specifications .............................
2.1.10 NVR48/48-16P/78/78-16P Series .....................................................................................58 2.1.11 NVR78-RH Series ...............................................................................................................60 2.1.12 NVR70/70-R Series.............................................................................................................62 2.1.13 NVR42V-8P Series ..........................................................................................
3.3.2 NVR11/11-P/41/41-P/41-8P/41-W/21-S2/21-P-S2/21-8P-S2 Series ........................ 114 3.3.3 NVR11H/11H-P/41H/41H-P/41H-8P/11HS/21HS-S2/21HS-P-S2/21HS-8P-S2/ 41HS-W-S2 Series ........................................................................................................................... 115 3.3.4 NVR42/42N/42-P/42-8P/42-16P/72/72-8P/42-4K/42-8P-4K/52-4KS2/52-8P-4KS2/52 -16P-4KS2/22-S2/22-P-S2/22-8P-S2 Series ...............................................................................
4.4.1 Main Menu ..........................................................................................................................150 4.4.2 Dual-screen operation ......................................................................................................150 4.4.3 Output Screen ....................................................................................................................150 4.4.4 Tour .....................................................................................
4.10.2.2 Schedule Snapshot ..................................................................................................184 4.10.3 Motion detect record/snapshot ........................................................................................186 4.10.3.1 Motion detect record ................................................................................................186 4.10.3.2 Motion Detect Snapshot ..........................................................................................
4.14.1.3.2 Advanced ................................................................................................................233 4.14.1.4 WIFI ............................................................................................................................234 4.14.1.5 3G ...............................................................................................................................235 4.14.1.6 PPPoE.............................................................................
4.17.4 Account ...............................................................................................................................272 4.17.4.1.1 Add User .................................................................................................................274 4.17.4.1.2 Modify user .............................................................................................................276 4.17.4.1.3 Change Password ..................................................................
5.8.2.6 PPPoE........................................................................................................................307 5.8.2.7 DDNS .........................................................................................................................307 5.8.2.8 IP filter ........................................................................................................................308 5.8.2.9 Email .................................................................................
6 7 8 9 5.8.4.5.3 Snapshot ....................................................................................................................344 5.8.5 Setting .................................................................................................................................344 5.8.5.1 General ......................................................................................................................344 5.8.5.1.1 General .............................................................
Welcome Thank you for purchasing our network video recorder! This user’s manual is designed to be a reference tool for your system. Please open the accessory bag to check the items one by one in accordance with the list below. Contact your local retailer ASAP if something is missing or damaged in the bag.
Important Safeguards and Warnings 1．Electrical safety All installation and operation here should conform to your local electrical safety codes. The product must be grounded to reduce the risk of electric shock. We assume no liability or responsibility for all the fires or electric shock caused by improper handling or installation. 2．Transportation security Heavy stress, violent vibration or water splash are not allowed during transportation, storage and installation. 3．Installation Keep upwards.
Keep away from extreme hot places and sources； Avoid direct sunlight； Keep away from extreme humid places； Avoid violent vibration； Do not put other devices on the top of the NVR； Be installed in well ventilated place; do not block the vent. Accessories Check the following accessories after opening the box： Please refer to the packing list in the box * Standards Approvals For our Wi-Fi series product such as NVR41HS-W-S2, please refer to the following important notices.
20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. IEEE 802.11b, 802.11g or 802.11n (20MHz) operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. IEEE 802.11n (40MHz) operation of this product in the U.S.A. is firmware-limited to channels 3 through 9.
1 Features and Specifications 1.1 Overview This series NVR is a high performance network video recorder. This series product support local preview, multiple-window display, recorded file local storage, remote control and mouse shortcut menu operation, and remote management and control function. This series product supports centre storage, front-end storage and client-end storage. The monitor zone in the front-end can be set in anywhere.
Network Monitor Through network, sending audio/video data compressed by IPC or NVS to client-ends, then the data will be decompressed and display. Support max 128 connections at the same time. Transmit audio/video data by HTTP, TCP, UDP, MULTICAST, RTP/RTCP and etc. Transmit some alarm data or alarm info by SNMP. Support WEB access in WAN/LAN. Adopt the video compression and digital process to show several windows in one monitor.
Model 100 Series 100-P Series Type Video Decode Capability Max 2-ch 1080P 30fps or 4-ch 720P 30fps or 8-ch D1 30fps Video Input 4/8-ch network compression video input Video Output 1-channel VGA analog video output HDMI 1-ch HDMI output. Version number is 1.4 Window Split 1/4/8-window N/A Audio Audio Input N/A Audio Output Alarm Funciton Port and Indicator Audio Compression Standard G.711a Alarm Input N/A Alarm Output N/A Storage 1 built-in 2.
Model 100 Series Network Connection 100-P Series 1 RJ45 10/100Mbps self-adaptive Ethernet port. PoE N/A 4 1 power socket. Power adapter power supplying mode. DC 5V 2A power. 1 power socket. Power adapter power supplying mode. DC 48V 1.25A power. Power Port Power Button N/A Power Button On-off IR Receiver Window N/A N/A Clock Built-in clock.
Model System Decode Video 11 Series System Resources 11-P Series 4/8-ch series product support 4/8 HD connection respectively. Total bandwidth supports 28/56Mbps respectively. OS Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Type H.264/MJPEG Decode Decode Capability Max 2-ch 1080P 30fps or 4-ch 720P 30fps or 8-ch D1 30fps Video Input 4/8-ch network compression video input Video Output 1-channel VGA analog video output HDMI 1-ch HDMI output.
Model Port and Indicator 11 Series 11-P Series Multiple-Chann el Playback Max 8-channel D1 or 4-channel 720P or 2-channel 1080P playback RS232 Port N/A RS485 Port N/A 2 peripheral USB2.0 ports. USB Port Network Connection 1 RJ45 10/100Mbps self-adaptive Ethernet port. PoE N/A 4 1 power socket. Power adapter power supplying mode. DC 12V power. 1 power socket. Power adapter power supplying mode. DC 48V power.
Model 11 Series 11-P Series Dimension 205mm×206.75mm×45.2mm Weight 0.5kg～1kg (No HDD) Installation Mode Desk installation 1.3.3 NVR21-S2/NVR21-P-S2/NVR21-8P-S2 Series Model System Decode Video 21-S2 Series System Resources 21-P-S2 Series 4/8-ch series product support 4/8 HD connection respectively. Total bandwidth supports 80Mbps. OS Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Type H.
Model Alarm Funciton Port and Indicator 21-S2 Series 21-P-S2 Series 21-8P-S2 Series Audio Compression Standard G.711a Alarm Input N/A Alarm Output N/A Storage 1 built-in SATA port Multiple-Chann el Playback Max 8-channel D1 or 8-channel 720P or 4-channel 1080P playback RS232 Port N/A RS485 Port N/A 2 peripheral USB2.0 ports. USB Port Network Connection 1 RJ45 10/100Mbps self-adaptive Ethernet port. PoE N/A 4 8 1 power socket. Power adapter power supplying mode. DC 12V power.
Model 21-S2 Series 21-P-S2 Series 21-8P-S2 Series Clock Built-in clock. General Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. Power Consumption ＜10W (No HDD) Working Temperature ﹣10℃～﹢55℃ Working Humidity 10℅～90℅ Air pressure 86kPa～106kPa Dimension 205mm×206.75mm× 45.2mm 205mm×206.75mm× 45.2mm 425mm×95mm×260 mm Weight 0.5kg～2kg (No HDD) Installation Mode Desk installation 1.3.
Model Video 11H Series 11H-P Series Video Input 4/8-ch network compression video input Video Output 1-channel VGA analog video output HDMI 1-ch HDMI output. Version number is 1.4 Window Split 1/4/8-window 1-ch bidirectional talk input Audio Audio Input 1-ch bidirectional talk output Audio Output Alarm Funciton Port and Indicator Audio Compression Standard G.
Model 11H Series 11H-P Series Power Port 1 power socket. Power adapter power supplying mode. DC 12V power. 1 power socket. Power adapter power supplying mode. DC 48V power. Power Button N/A Power Button On-off IR Receiver Window N/A N/A Clock Built-in clock. General Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light.
Model Decode 11HS Series Operation Interface WEB/Local GUI Video Type H.264 Decode Decode Capability Video Audio Alarm Funciton Port and Indicator For 8-channel series product: Max 2-ch 1080P 30fps or 4-ch 720P 30fs or 8-ch D1 30fps. For 4-channel series product: Max 1-ch 1080P 30fps or 4-ch 720P 30fs or 4-ch D1 30fps. Video Input 4/8-ch network compression video input Video Output 1-channel VGA analog video output HDMI 1-ch HDMI output. Version number is 1.
Model 11HS Series Power Button On-off N/A IR Receiver Window N/A Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. General Power Consumption ＜10W (No HDD) Working Temperature ﹣10℃～﹢55℃ Working Humidity 10℅～90℅ Air pressure 86kPa～106kPa Dimension(W* D*H) 260mm×220mm×44mm Weight 0.7kg～0.8kg (No HDD) Installation Mode Desk installation 1.3.
Model Audio Alarm Funciton Port and Indicator NVR21HS-S2 Series NVR21HS-P-S2 Series NVR21HS-8P-S2 Series Window Split 1/4/8-window Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compression Standard G.711a Alarm Input N/A Alarm Output N/A Storage 1 built-in SATA port Multiple-Chann el Playback Max 4-channel 1080P or 8-channel 720P or 8-channel D1 playback RS232 Port N/A RS485 Port N/A USB Port 2 peripheral USB2.0 ports.
Model NVR21HS-S2 Series NVR21HS-P-S2 Series Working Temperature ﹣10℃～﹢55℃ Working Humidity 10℅～90℅ Air pressure 86kPa～106kPa Dimension(W× D×H) 260mm×220mm×44mm Weight 0.7kg～0.8kg (No HDD) Installation Mode Desk installation NVR21HS-8P-S2 Series 1.3.7 NVR41HS-W-S2 Series Model System Decode Video Audio Alarm Funciton 41HS-W-S2 Series System Resources 4/8-ch series product support 4/8 HD connection respectively. Total bandwidth supports 80Mbps.
Model Port and Indicator 41HS-W-S2 Series Multiple-Chann el Playback Max 8-ch 1080P playback RS232 Port N/A RS485 Port N/A USB Port 2 peripheral USB2.0 ports. One at the front panel and one at the rear panel. Network Connection 1 RJ45 10/100Mbps self-adaptive Ethernet port. PoE Port N/A Power Port 1 power socket. Power adapter power supplying mode. DC 12V/2A power. Power Button N/A Power Button On-off N/A IR Receiver Window N/A Clock Built-in clock.
Model Decode Video Audio Alarm Funciton Port and Indicator 41 Series 41-P Series Operation Interface WEB/Local GUI Video Type H.264/MJPEG/MJPEG4 Decode 41-8P Series 41-W Series Decode Capability Max 2-ch 5M 25fps or 4-ch 3M 25fps or 4-ch 1080P 30fps or 8-ch 720P 30fs Video Input 4/8/16-ch network compression video input Video Output 1-channel VGA analog video output HDMI 1-ch HDMI output. Version number is 1.
Model 41 Series 41-P Series Power Button 1 button Power Button On-off N/A IR Receiver Window N/A Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. 41-8P Series 41-W Series 270mm×204m m×42mm 205mm×206.7 5mm×45.2mm One HDD status indicator light. General Power Consumption ＜10W (No HDD) Working Temperature ﹣10℃～﹢55℃ Working Humidity 10℅～90℅ Air pressure 86kPa～106kPa Dimension 205mm×206.75mm×45.2mm Weight 0.
Model Audio Alarm Funciton Port and Indicator 41H Series 41H-P Series 41H-8P Series Window Split 1/4/8/9/16-window Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compression Standard G.711a Alarm Input N/A 2-channel Alarm Output N/A 2-channel Storage 1 built-in SATA port Multiple-Chann el Playback Max 4-channel 1080P playback RS232 Port N/A RS485 Port N/A USB Port 2 peripheral USB2.0 ports.
Model 41H Series 41H-P Series Working Humidity 10℅～90℅ Air pressure 86kPa～106kPa Dimension 325mm×250.58mm×51mm Weight 0.5kg～1kg (No HDD) Installation Mode Desk installation 41H-8P Series 1.3.10 NVR22-S2/22-P-S2/22-8P-S2 Series Model System Decode Video Audio Alarm Funciton NVR22-S2 Series NVR22-P-S2 Series NVR22-8P-S2 Series System Resources 4/8-ch series product support 4/8 HD connection respectively. Total bandwidth supports 80Mbps.
Model Port and Indicator NVR22-S2 Series NVR22-P-S2 Series NVR22-8P-S2 Series RS232 Port N/A RS485 Port N/A USB Port 2 peripheral USB2.0 ports. Network Connection 1 RJ45 10/100Mbps self-adaptive Ethernet port. PoE Port N/A 4 8 Power Port 1 power socket. Power adapter power supplying mode. DC 12V power. 1 power socket. Power adapter power supplying mode. DC 48V power. 1 power socket. Power adapter power supplying mode. DC 48V power.
System Decode Video Audio Alarm Function Port and Indicator System Resource s 4/8/16/32-channel series product support 4/8/16/32-channel HD connection respectively. Main stream bandwidth supports 40/80/160/160Mbps respectively. Operation System Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Compres sion H.264/MJPEG/MPEG4 Decode Capacity Max supports 16-channel D1, or 8-channel 720P, or 4-channel 1080P, or 4*3M or 2*5M decode.
General Power Port One power port, power adapter. Input DC 12V. Power Button One button. At the rear panel. Power On-off Button One button. At the front-panel. IR Receiver Window Support IR remote control Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light.
Video Audio Alarm Function Port and Indicator Decode Capacity Max supports 16-channel D1, or 8-channel 720P, or 4-channel 1080P, or 4*3M or 2*5M decode. Video Input 4/8/16/32-ch network compression video input Video Output 1-channel VGA analog video output. HDMI 1-ch HDMI output. Version number is 1.4 Window Split 1/4/8/9/16-window Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compres sion G.
Window General Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. Power Consump tion ＜30W(No HDD) Working Temperat ure -10℃～+55℃ Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 375mm×287mm×52m m Weight 1.5kg～2.5kg（No HDD） Installatio n Desk installation 375mm×287mm×52mm 295mm×275mm×47m m 1.3.
Audio Alarm Function Port and Indicator General Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compres sion G.711a Alarm Input 4-ch alarm input Alarm Output 2-ch alarm output Storage 2 built-in SATA ports. Multiple-c hannel Playback Max 16-channel 720P/8-channel 1080P playback at the same time. RS232 Port One RS232 port to debug transparent COM data. RS485 port One RS485 port to control PTZ. Support various protocols. USB2.
ure Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 375mm×287mm×52mm Weight 1.5kg～2.5kg（No HDD） Installatio n Desk installation 1.3.14 NVR42-4K/42-8P-4K Series Model System Decode Video Audio Alarm NVR42-4K Series NVR42-8P-4K Series System Resource s 8/16/32-channel series product support 8/16/32-channel HD connection respectively. The main stream bandwidth supports 48/96/192Mbps.
Function Port and Indicator General Output Relay output. Relay （DC 30V /1A，AC 125V/0.5A（Activation output）） Including one controllable DC +12V output. Storage 2 built-in SATA ports. Multiple-c hannel Playback Max 8-channel 720P/4-channel 1080P/1-channel 4K playback at the same time. RS232 Port One RS232 port to debug transparent COM data. RS485 port One RS485 port to control PTZ. Support various protocols. USB Port 2 peripheral USB ports: One USB2.0 at the front panel and one USB3.
Installatio n Desk/rack installation 1.3.15 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2 Series Model System Decode Video Audio Alarm Function NVR52-4KS2/52-8P-4KS2/52-16P-4KS2 Series System Resource s 8/16/32/64-channel series product support 8/16/32/64-channel HD connection respectively. The main stream bandwidth supports 80/160/320/320Mbps. Operation System Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Compres sion MPEG4，MJPG，H.264，H.265 Decode Capacity H.264/H.
Port and Indicator General Network Protocol IPv4/IPv6/HTTP/UPnP/NTP/SADP/SNMP/PPPoE/DNS/FTP/ONVIF(Versio n 2.4)/PSIA RS232 Port One RS232 port to debug transparent COM data. RS485 port One RS485 port to control PTZ. Support various protocols. USB Port 2 peripheral USB ports: One USB2.0 at the front panel and one USB3.0 at the rear panel. Network Connecti on One RJ45 10/100/1000Mbps self-adaptive Ethernet port. Power Port One power socket. Power adapter power supplying. Input DC 12V-4A power.
Model System Decode Video Audio Alarm Function Port and Indicator NVR44 Series NVR44-8P Series NVR44-16P Series System Resource s 8/16/32-channel series product support 8/16/32-channel HD connection respectively. The main stream bandwidth supports 200Mbps. Operation System Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Compres sion H.264/MJPEG/MPEG4 Decode Capacity Max supports 16-channel D1, or 8-channel 720P, or 4-channel 3M or 2*5M decode.
General Network Connecti on One RJ45 10/100/1000Mbps self-adaptive Ethernet port. Power Port One power port. Input 100-240V，50~60Hz. Power Button One button. At the rear panel. Power On-off Button One button. At the front-panel. IR Receiver Window Support IR remote control Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light.
Video Parameters Audio Compression Standard G.711a, G.711u, PCM, G726 Video Input 8/16/32-ch network compression video input Video Output 1-channel VGA 2-channel HDMI. Video Compression Standard H.264 Window Mode Alarm Parameters Decode Parameters Functions Network Function Split The 1st screen: 1/4/8/9/16-screen. The 2nd screen: 1/4-screen. Alarm Input 16-channel Alarm Output 8-channel relay output Decode Type MPEG4，H.264，H.
General Parameters Indicator Light 4 indicator lights. 1 system running status indicator light 1 HDD indicator light 1 network status indicator light 1 power status indicator light Power AC100~240V Power Consumption General series: ＜17W（No HDD）, PoE series: <26.5W （No HDD）, Working Temperature 0℃～50℃ Working Humidity 10%～90%（No condensation） Dimensions (W× H×D) 440×76×405mm Weight General series:4.35 kg（No HDD）, PoE series: 4.65kg （No HDD）, Installation Mode Rack/desktop 1.3.
Record Mode Functions Network Function Multi-Channel Playback Max support 16-channel 1080P playback at the same time. Motion Detect Each screen supports 396/330((PAL 22×18, NTSC 22×15) detection zones. Various sensitivity levels. Privacy Mask Each channel supports 4 privacy mask zones. Record Mode Overwrite Backup Mode Flash disk, eSATA, DVD burner. Network Protocol IPv4/IPv6/HTTP/UPnP/NTP/SADP/SNMP/PPPoE/DNS/FTP/ ONVIF(Version 2.
Specifications System Audio Parameters Video Parameters NVR48-4K Main Processor Industrial embedded micro processor Operation System Embedded LINUX system System Resources Max 8-channel×1080P connection, User Interface WEB, local GUI Audio Input 1-ch MIC bidirectional talk audio input Audio Output 1-ch MIC bidirectional talk audio output Audio Compression Standard G.711a, G.711u, PCM, G726 Video Input 8/16/32-ch network compression video input Video Output 1-channel VGA 2-channel HDMI.
General Parameters USB Port 2 USB 2.0 ports at the front panel and 2 USB3.0 ports at the rear panel. HDMI Port 2 HDMI ports Network Port 2 RJ45 10/100/1000Mbps self-adaptive Ethernetet ports+2 1000Mbps self-adaptive fiber ports Power Button One at the rear panel. On-off Indicator Light 4 indicator lights. 1 system running status indicator light 1 HDD indicator light 1 network status indicator light 1 power status indicator light Power AC100~240V Power Consumption General series: ＜18.
Window Mode Alarm Parameters Decode Parameters Split Alarm Input 16-channel Alarm Output 6-channel relay output Decode Type MPEG4，MJPG，H.264，H.265 Decode Capability H.264/H.265: 64-channel×D1;32-channel×720P, 16-channel 1080P;4-channel 4K Record Mode Functions Network Function Multi-Channel Playback Manual recording, motion detection recording, schedule recording and alarm recording.
Dimensions (W× H×D) 439.7×95×450.8mm Weight (No HDD) General series:6.55Kg, PoE series: 7Kg. Installation Mode Rack/desktop 1.3.21 NVR48/48-16P Series Model System Decode Video Audio Alarm Function NVR48 Series NVR48-16P Series System Resource s 8/16/32-channel series product support 8/16/32-channel HD connection respectively. The main stream bandwidth supports 200Mbps. Operation System Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Compres sion H.
Playback Port and Indicator General RS232 Port One RS232 port to debug transparent COM data. RS485 port One RS485 port to control PTZ. Support various protocols. USB2.0 Port 3 peripheral USB2.0 ports. Two at the front panel and one at the rear panel. Network Connecti on Two RJ45 10/100/1000Mbps self-adaptive Ethernet ports. Power Port One power port. Input 100-240V，50~60Hz. Power Button One button. At the rear panel. Power On-off Button One button. At the front-panel.
System Decode Video Audio Alarm Function Port and Indicator System Resource s 8/16/32/64-channel series product support 8/16/32/64-channel HD connection respectively. The main stream bandwidth supports 48/96/192/192Mbps. Operation System Embedded Linux real-time operation system Operation Interface WEB/Local GUI Video Compres sion H.264/MJPEG Decode Capacity Max supports 32-channel D1, or 16-channel 720P, or 8-channel 1080P decode.
General Power Port One power port, power adapter. Input DC 12V. Power Button One button. At the rear panel. Power On-off Button One button. At the front-panel. IR Receiver Window Support IR remote control Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. Power Consump tion ＜30W(No HDD) Working Temperat ure -10℃～+55℃ Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 1U case.
Video Audio Alarm Function Port and Indicator Decode Capacity Max supports 32-channel D1, or 16-channel 720P, or 8-channel 1080P decode. Video Input 8/16/32/64-ch network compression video input Video Output 1-channel VGA analog video output. HDMI 1-ch HDMI output. Version number is 1.4 Window Split 1/4/8/9/16/25/36-window Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compres sion G.
Window General Clock Built-in clock. Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. Power Consump tion ＜30W(No HDD) Working Temperat ure -10℃～+55℃ Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 1.5U, 440mm × 460mm × 68mm Weight 5kg～6kg（No HDD） Installatio n Desk installation 1.3.
sources) Audio Alarm Function Port and Indicator Window Split 1/4/8/9/16/25/36-window Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compres sion G.711a Alarm Input 16-ch alarm input Alarm Output 6-ch alarm output Relay output. Relay （DC 30V/1A，AC 125V/0.5A（Activation output）） Including one controllable DC +12V output. Storage 8 built-in SATA ports. 1 external eSATA port. 8 built-in SATA ports at the front panel.
General Indicator Light One power status indicator light. One network status indicator light. One HDD status indicator light. Power Consump tion ＜35W(No HDD) Working Temperat ure -10℃～+55℃ Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 440mm×460mm×89mm 444mm×430mm×89m m Weight 5.5kg～6.5kg（No HDD） 8.5kg ～ 9.5kg （ No HDD） Installatio n Desk installation 1.3.
Audio Alarm Function Port and Indicator General Audio Input 1-ch bidirectional talk input Audio Output 1-ch bidirectional talk output Audio Compres sion G.711a Alarm Input 16-ch alarm input Alarm Output 6-ch alarm output Relay output. Relay （DC 30V/1A，AC 125V/0.5A（Activation output）） Including one controllable DC +12V output. Storage 16 built-in SATA ports at the front panel. Support removable HDD installation mode. 1 external eSATA port. 16 built-in SATA ports at the front panel.
Consump tion Working Temperat ure -10℃～+55℃ Working Humidity 10℅－90℅ Air pressure 86kpa－106kpa Dimensio n 3U case: 448mm×490mm×133.2mm Weight 10.5kg～11.5kg（No HDD） Installatio n Desk installation 1.3.26 NVR42V-8P Series Model System Decode Video Audio Alarm Functio n NVR42V-8P System Resources 8/16/32-channel series product support 8/16/32-channel HD connection respectively. Main stream bandwidth supports 80/160/160Mbps respectively.
el Playback Port and Indicato r General RS232 Port N/A RS485 port N/A USB Port Two USB2.0 ports at the front panel and one USB3.0 port at the rear panel. . Network Connection 1 RJ45 10/100/1000Mbps self-adaptive Ethernet port and 8 PoE ports. Power Port One power port. Input DC 53V--2.3A Power Button One button. At the rear panel. Power On-off Button N/A IR Receiver Window Support IR remote control Clock Built-in clock. Indicator Light One power status indicator light.
2 Front Panel and Rear Panel 2.1 Front Panel 2.1.1 NVR11/11-P/41/41-P/41-W/21-S2/21-P-S2/21-8P-S2 Series The front panel is shown as in Figure 2-1. Figure 2-1 Please refer to the following sheet for detailed information. SN Name Function 1 HDD status indictor light The red light becomes on when HDD is abnormal. 2 Power indicator light The red light becomes on when the power connection is OK. 3 Network status indicator light The red light becomes on when the network connection is abnormal. 2.1.
Icon Name Function NET Network status indicator light The red light becomes on when the network connection is abnormal. PWR Power light The red light becomes on when the power connection is OK. HDD HDD status indictor light The red light becomes on when HDD is abnormal. Remote receiver It is to receive signal from the remote control. IR indicator control 2.1.3 NVR11HS Series The front panel is shown as below. See Figure 2-3.
Figure 2-4 Please refer to the following sheet for front panel button information. Icon Name Function HDD HDD status indicator light The blue light is on when the HDD is malfunction. NET Network status indicator light The blue light is on when the network connection is abnormal. POWER Power status indicator light The blue light is on when the power connection is OK. USB2.0 port Connect to peripheral USB 2.0 storage device, mouse, burner and etc. 2.1.
Please refer to the following sheet for detailed information. SN Name Function 1 Network status indicator light The red light becomes on when the network connection is abnormal. 2 Power indicator light The red light becomes on when the power connection is OK. 3 HDD status indictor light The red light becomes on when HDD is abnormal. 4 USB USB port 2.1.6 NVR42/42-P/42-8P/72/72-8P Series The front panel is shown as below. See Figure 2-6.
Go to menu Record REC Manually stop/start recording, working with direction keys or numeral keys to select the recording channel. Multiple slow play speeds or normal playback. In text mode, input number 8 (English character T/U/V). Slow play/8 One-window monitor mode, click this button to display assistant function: PTZ control and image color. Assistant Fn Backspace function: in numeral control or text control, press it for 1.5seconds to delete the previous character before the cursor.
IR Receiver IR It is to receive the signal from the remote control. 2.1.7 NVR21HS-S2/21HS-P-S2/21HS-8P-S2/22-S2/22-P-S2/22-8P-S2 Series The NVR21HS-S2/21HS-P-S2/21HS-8P-S2 series front panel is shown as below. See Figure 2-7. Figure 2-7 The NVR22-S2/22-P-S2/22-8P-S2 series front panel is shown as in Figure 2-8. Figure 2-8 Please refer to the following sheet for front panel button information. Icon Name Function STATUS Status indicator light The blue light is on when the device is malfunction.
Figure 2-10 The NVR48-4K/58-4K/58-16P-4KS2 series front panel is shown as in Figure 2-11. Figure 2-11 Please refer to the following sheet for front panel button information. Icon Name Function STATUS Status indicator light The blue light is on when the device is malfunction. HDD HDD status indicator light The blue light is on when the HDD is malfunction. NET Network status indicator light The blue light is on when the network connection is abnormal.
Shift Up/1 Down/4 In textbox, click this button to switch between numeral, English(Small/Capitalized),donation and etc. Shift Activate current control, modify setup, and then move up and down. 、 Increase/decrease numeral. Assistant function such as PTZ menu. In text mode, input number 1/4 (English character G/H/I) Shift current activated control, Left/2 Right/3 ESC ESC When playback, click these buttons to control playback bar.
Play Next/9 ►│ Play/Pause /5 ►|| USB port In playback mode, playback the next video In menu setup, go to down ward of the dropdown list. In text mode, input number 9 (English character W/X/Y/Z) . In normal playback click this button to pause playback In pause mode, click this button to resume playback. In text mode, input number 5(English character J/K/L). To connect USB storage device, USB mouse.
Increase/decrease numeral. Assistant function such as PTZ menu. Shift current activated control, and then move left and right. Left/ Right ESC ESC When playback, click these buttons to control playback bar. Go to previous menu, or cancel current operation. When playback, click it to restore real-time monitor mode.
Window switch Mult Click it to switch one-window/multiple-window. In real-time monitor mode it works as left/right direction key. Playback mode, counter clockwise to forward and clock wise to backward. Shuttle(outer ring) Up/down direction key. Playback mode, turn the inner dial to realized frame by frame playback. (Only applies to some special versions.) Jog(inner dial) USB port To connect USB storage device, USB mouse.
Name Icon Function Power button, press this button for three seconds to boot up or shut down NVR. Power button Number button 0-9 Input number more than 10 -/-- Shift Input Arabic number Switch channel If you want to input a number more than 10, please click this button and then input. In textbox, click this button to switch between numeral, English(Small/Capitalized),donation and etc. Enable or disable tour. Up/ Down Activate current control, modify setup, and then move up and down.
Fast play Various fast speeds and normal playback. Play previous | In playback mode, playback the previous video || In normal playback or pause mode, click this button to reverse playback In reverse playback, click this button to pause playback. Reverse/Pause | Play Next In playback mode, playback the next video In menu setup, go to down ward of the dropdown list. Play/Pause || In normal playback click this button to pause playback In pause mode, click this button to resume playback.
Figure 2-15 Please refer to the following sheet for front panel button information. SN Name Icon Function 1 Power button Press it once to turn on the device. Press it for a long time to turn off the device (Usually we do not recommend). Press power button for a long time or pull out the power cable may result in device auto restart. 2 System HDD Indicator light The blue light flashes when system is reading or writing the system HDD.
Figure 2-16 2.1.13 NVR42V-8P Series The front panel is shown as below. See Figure 2-17 Figure 2-17 Please refer to the following sheet for front panel button information. Name Icon Power button Function Power button, press this button for three seconds to boot up or shut down NVR. Assistant Fn One-window monitor mode, click this button to display assistant function: PTZ control and image color. Backspace function: in numeral control or text control, press it for 1.
character (small/capitalized) and etc. In HDD management interface, you can click it to switch HDD record information and other information (Menu prompt) Realize other special functions. USB2.0 port To connect USB2.0 storage device, USB2.0 mouse, burner and etc. IR receive window It is to receive the IR signal from the remote control. Power indicator light Power indicator light.
Port Name Connection Function Network port 10M/100Mbps self-adaptive Connect to the network cable. HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. Power input port Power socket.
Port Name Connection Function USB2.0 port USB2.0 port. Connect to mouse, USB storage device, USB burner and etc. Network port 10M/100Mbps self-adaptive Connect to the network cable. HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port. Output analog video signal.
Figure 2-23 The NVR41-8P rear panel is shown as below. See Figure 2-24. Figure 2-24 The NVR41-W rear panel is shown as below. See Figure 2-25. Figure 2-25 Please refer to the following sheet for detailed information. Port Name Connection Function USB2.0 port USB2.0 port. Connect to mouse, USB storage device, USB burner and etc.
Port Name Connection Function Network port 10M/100Mbps self-adaptive Connect to the network cable. HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. GND Ground end Power input port Power socket.
Figure 2-27 The NVR21-8P-S2 is shown as in Figure 2-28. Figure 2-28 Please refer to the following sheet for detailed information. Port Name Connection Function Power input port Power socket For NVR21-S2，input DC 12V/2A. For NVR21-P-S2，input DC 48V/1.25A. For NVR21-8P-S2，input DC 48V/2A. Network port 10M/100Mbps self-adaptive Ethernet port. Connect to the network cable. USB port USB port. Connect to mouse, USB storage device and etc.
Port Name Connection Function PoE PORTS PoE port Built-in switch. Support PoE function. For PoE series product, you can use this port to provide power to the network camera. 2.2.5 NVR11H/11H-P/41H/41H-P/41H-8P Series The NVR11H/41H rear panel is shown as in Figure 2-29. Figure 2-29 The NVR11H-P/41H-P rear panel is shown as in Figure 2-30. Figure 2-30 The NVR41H-8P rear panel is shown as in Figure 2-31. Figure 2-31 Please refer to the following sheet for detailed information.
Port Name Connection Function GND Ground end / Power input port Power socket. For NVR41 series, input DC 12V/2A. For NVR41H-P series, input DC 48V/1.5A. For NVR11H-P series, input DC 48V/1.25A. For NVR41H-8P series, input DC 48V/2A. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio port Audio output port.
Icon Name Function GND Ground end 2.2.7 NVR21HS-S2/21HS-P-S2/21HS-8P-S2 Series The NVR21HS-S2 series rear panel is shown as below. See Figure 2-33. Figure 2-33 The NVR21HS-P-S2 series rear panel is shown as below. See Figure 2-34. Figure 2-34 The NVR21HS-8P-S2 series rear panel is shown as below. See Figure 2-35. Figure 2-35 Please refer to the following sheet for detailed information. Port Name HDMI Connection Function Power input port Power socket. For NVR21HS-S2, input DC 12V/2A.
Port Name Connection Function VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box. PoE PORTS Bidirectional talk output.
Icon Name Power socket. Function input Power socket. Input DC12V/2A. Network port 10M/100Mbps self-adaptive Ethernet port. Connect to the network cable. USB2.0 port USB2.0 port. Connect to mouse, USB storage device, and etc. HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port.
Please refer to the following sheet for detailed information. Port Name Connection Function Power input port Power socket. For NVR22-S2, input DC 12V/4A. For NVR22-P-S2, input DC 48V/1.5A. For NVR22-8P-S2, input DC 53V 120W. Network port 10M/100Mbps self-adaptive Ethernet port. Connect to the network cable. USB port USB port. Connect to mouse, USB storage device and etc. HDMI High Definition Media Interface High definition audio and video signal output port.
Figure 2-41 The NVR42-P series rear panel is shown as below. See Figure 2-42. Figure 2-42 The NVR42-8P series rear panel is shown as below. See Figure 2-43. Figure 2-43 The NVR42-16P series rear panel is shown as below. See Figure 2-44. Figure 2-44 Please refer to the following sheet for detailed information. Name Function Power switch Power on/off button. Input DC 12V/5A. For NVR42 series product only. Switch power port. Input DC 48//1.04A. Power input port For NVR42-P series product only.
Name Function MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box. Bidirectional talk output. Audio output on 1-window video monitor. Audio output on 1-window video playback. There are two types; NO (normal open)/NC (normal close).
Name Function PoE PORTS Bult-in Switch. Support PoE. The 4 PoE series product supports total 48V 50W. The 8 PoE series product supports total 48V 120W. The 16 PoE series product supports total 120W. One PoE port max supports 15W. / 2.2.11 NVR42-4K/52-4KS2/52-8P-4KS2/52-16P-4KS2 Series The NVR42-4K/52-4KS2 series rear panel is shown as below. See Figure 2-45. Figure 2-45 The NVR52-8P-4KS2 series rear panel is shown as below. See Figure 2-46.
Icon Port Name RS-232 RS-232 COM. debug It is for general COM debug to configure IP address or transfer transparent COM data. VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port.
The NVR42-8P-4K series rear panel is shown as below. See Figure 2-48. Figure 2-48 Please refer to the following sheet for detailed information. Icon Port Name Function Power socket / Input AC 220V. Power switch / Power on/off button. PoE port Built-in Switch，support PoE. The PoE PORTS can provide power to the network camera. The 8 PoE ports series product can support 48V 120W. Network port 10M/100M/1000Mbps self-adaptive Ethernet port. Connect to the network cable.
Icon N1,N2 Port Name Function GND Alarm input ground port. Alarm output port 1～2 C1～C2 A RS-485 communication port B 2 groups of alarm output ports.（group 1：port NO1～C1, group 2：port NO2～C2）. Output alarm signal to the alarm device. Please make sure there is power to the external alarm device. NO：Normal open alarm output port. C：Alarm output public end. RS485_A port. It is the cable A. You can connect to the control devices such as speed dome PTZ. RS485_B.It is the cable B.
Name Function MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box. VIEDEO OUT 1～16 NO1～NO5 C1～C5 Bidirectional talk output. Audio output on 1-window video monitor. Audio output on 1-window video playback.
Name eSATA RS-232 Function eSATA port External SATA port. It can connect to the device of the SATA port. Please jump the HDD when there is peripheral connected HDD. USB2.0 port USB2.0 port. Connect to mouse, USB storage device, USB burner and etc. RS232 COM. debug It is for general COM debug to configure IP address or transfer transparent COM data. HDMI High Definition Media Interface High definition audio and video signal output port.
Name eSATA Function Power switch Power on-off button Power input port Input AC 100~240V. Network port 10M/100M/1000Mbps self-adaptive Ethernet port. Connect to the network cable. eSATA port External SATA port. It can connect to the device of the SATA port. Please jump the HDD when there is peripheral connected HDD. USB3.0 port USB3.0 port. Connect to mouse, USB storage device, USB burner and etc. High definition audio and video signal output port.
Name A B Function RS485_A port. It is the cable A. You can connect to the control devices such as speed dome PTZ. RS-485 communication port RS485_B.It is the cable B. You can connect to the control devices such as speed dome PTZ. CTRL 12V / Controller 12V power output. It is to control the on-off alarm relay output. It can be used to control the device alarm output. At the same time, it can also be used as the power input source of some devices such as the alarm detector.
Name Function Power switch / Power on-off button Power port / Input AC 100~240V. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box. VIEDEO input OUT 1～16 NO1～NO5 C1～C5 Bidirectional talk output. Audio output on 1-window video monitor.
Name +12V eSATA RS-232 Function / +12V power output port. It can provide the power to some peripheral devices such as the camera or the alarm device. Please note the supplying power shall be below 1A. Network port One 10M/100M/1000Mbps self-adaptive Ethernet port. Connect to the network cable. eSATA port External SATA port. It can connect to the device of the SATA port. Please jump the HDD when there is peripheral connected HDD. USB2.0 port USB2.0 port.
Name Function HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. MIC IN Audio input port Bidirectional talk input port.
Figure 2-57 Please refer to the following sheet for detailed information. Name RS-232 Function USB2.0 port USB2.0 port. Connect to mouse, USB storage device, USB burner and etc. Network port 10M/100M/1000Mbps self-adaptive Ethernet port. Connect to the network cable. RS-232 COM. It is for general COM debug to configure IP address or transfer transparent COM data. debug HDMI High Definition Media Interface High definition audio and video signal output port.
Name Function Power input port Input AC 100~240V. Power switch / Power on-off button. PoE PORTS / Bult-in Switch. Support PoE. The 8 PoE series product supports total 48V 120W. One PoE port max supports 15W. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box.
VIEDEO OUT HDMI 1～16 NO1～NO5 C1～C5 Video output port CVBS output. High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.3. Alarm input port 1～16 There are four groups. The first group is from port 1 to port 4, the second group is from port 5 to port 8, the third group is from 9 to 12, and the fourth group is from 13 to 16.
RS-232 RS-232 COM. debug It is for general COM debug to configure IP address or transfer transparent COM data. VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. VGA video output port VGA 2.2.19 NVR74-8P/74-16P Series The NVR74-8P series rear panel is shown as below. See Figure 2-59. Figure 2-59 The NVR74-16P series rear panel is shown as below. See Figure 2-60. Figure 2-60 Please refer to the following sheet for detailed information.
Port Name 1～16 NO1～NO5 C1～C5 Function Alarm input port 1～16 There are four groups. The first group is from port 1 to port 4, the second group is from port 5 to port 8, the third group is from 9 to 12, and the fourth group is from 13 to 16. They are to receive the signal from the external alarm source. There are two types; NO (normal open)/NC (normal close). When your alarm input device is using external power, please make sure the device and the NVR have the same ground.
Port Name Function HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.3 VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. 8 PoE ports Built-in Switch. Support PoE. The 8 PoE ports series products supports total 48V 120W power.
Port Name 1～16 NO1～NO5 C1～C5 Function Alarm input port 1～16 There are four groups. The first group is from port 1 to port 4, the second group is from port 5 to port 8, the third group is from 9 to 12, and the fourth group is from 13 to 16. They are to receive the signal from the external alarm source. There are two types; NO (normal open)/NC (normal close). When your alarm input device is using external power, please make sure the device and the NVR have the same ground.
Port Name Function HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.3. VGA VGA video output port VGA video output port. Output analog video signal. It can connect to the monitor to view analog video. 2.2.21 NVR78-16P Series The NVR78-16P series rear panel is shown as below. See Figure 2-62.
Port Name NO1～NO5 C1～C5 Function GND Alarm input ground port. Alarm output port 1～5 5 groups of alarm output ports. (Group 1：port NO1～C1,Group 2:port NO2～C2,Group 3:port NO3～C3, Group 4：port NO4～C4, Group 5: port NO5, C5, NC5).Output alarm signal to the alarm device. Please make sure there is power to the external alarm device. NO: Normal open alarm output port. C: Alarm output public end. NC: Normal close alarm output port. NC5 A B RS-485 communication port RS485_A port.
2.2.22 NVR78-RH Series The NVR78-RH series rear panel is shown as below. See Figure 2-63. Figure 2-63 Please refer to the following sheet for detailed information. Port Name Function Power switch / Power on-off button Power port / Input AC 100~240V. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port.
Port Name Function NO3～C3, Group 4：port NO4～C4, Group 5: port NO5, C5, NC5).Output alarm signal to the alarm device. Please make sure there is power to the external alarm device. NC5 A B RS-485 communication port NO: Normal open alarm output port. C: Alarm output public end. NC: Normal close alarm output port. RS485_A port. It is the cable A. You can connect to the control devices such as speed dome PTZ. RS485_B.It is the cable B.
Figure 2-64 Please refer to the following sheet for detailed information. Port Name Function Power switch / Power on-off button Power port / Input AC 100~240V. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box.
Port Name Function NO3～C3, Group 4：port NO4～C4, Group 5: port NO5, C5, NC5).Output alarm signal to the alarm device. Please make sure there is power to the external alarm device. NC5 A B RS-485 communication port NO: Normal open alarm output port. C: Alarm output public end. NC: Normal close alarm output port. RS485_A port. It is the cable A. You can connect to the control devices such as speed dome PTZ. RS485_B.It is the cable B.
Figure 2-65 Please refer to the following sheet for detailed information. Port Name Function Power switch / Power on-off button Power port / Input AC 100~240V. MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box.
Port Name Function NO3～C3, Group 4：port NO4～C4, Group 5: port NO5, C5, NC5).Output alarm signal to the alarm device. Please make sure there is power to the external alarm device. NC5 A B RS-485 communication port NO: Normal open alarm output port. C: Alarm output public end. NC: Normal close alarm output port. RS485_A port. It is the cable A. You can connect to the control devices such as speed dome PTZ. RS485_B.It is the cable B.
Figure 2-66 Please refer to the following sheet for detailed information. Name Power switch Function / Power on/off button. Power input port Input DC 53V--2.3A MIC IN Audio input port Bidirectional talk input port. It is to receive the analog audio signal output from the devices such as microphone, pickup. MIC OUT Audio output port Audio output port. It is to output the analog audio signal to the devices such as the sound box. 1～2 C Alarm input port 1～2 Bidirectional talk output.
Name Function Normal open Normal open alarm output port. Network port 10M/100M/1000Mbps self-adaptive Connect to the network cable. USB3.0 port USB3.0 port. Connect to mouse, USB storage device, USB burner and etc. HDMI High Definition Media Interface High definition audio and video signal output port. It transmits uncompressed high definition video and multiple-channel data to the HDMI port of the display device. HDMI version is 1.4. VGA VGA video output port VGA video output port.
GND A/B 485 communication port. They are used to control devices such as PTZ. Please parallel connect 120TΩ between A/B cables if there are too many PTZ decoders. Note Different models support different alarm input ports. Please refer to the specifications sheet for detailed information. Slight difference may be found on the alarm port layout. 2.3.2 Alarm input port Connect the positive end (+) of the alarm input device to the alarm input port (ALARM IN 1～16) of the NVR.
A/B cable of the RS485 is for the A/B cable connection of the speed PTZ. 2.3.
Figure 2-70 2.4.2 PC-end to the device-end Device Connection Connect the speaker or the pickup to the audio output port in the PC and then connect the earphone or the sound box to the first audio input port in the device rear panel. Login the Web and then enable the corresponding channel real-time monitor. Please refer to the above interface (Figure 2-69) to enable bidirectional talk.
In input box, you can select input methods. Left click the corresponding button on the panel you can input numeral/English character (small/capitalized). Here ← stands for backspace button. ＿ stands for space button. In English input mode: _stands for input a backspace icon and ← stands for deleting the previous character. In numeral input mode: _ stands for clear and previous numeral.
Figure 2-72 Serial Number Name Function 1 Power button Click it to boot up or shut down the device. 2 Address Click it to input device number, so that you can control it. 3 Forward Various forward speeds normal speed playback. 4 Slow play Multiple slow play speeds or normal playback. Next record In playback mode, playback the next video. Previous record In playback mode, playback the previous video. Play/Pause In pause mode, click this button to realize normal playback.
In reverse playback click this button to pause playback. Esc. Go back to previous menu or cancel current operation (close upper interface or control) 10 Record Start or stop record manually In record interface, working with the direction buttons to select the record channel. Click this button for at least 1.5 seconds, system can go to the Manual Record interface. 11 Direction keys Switch current activated control, go to left or right. In playback mode, it is to control the playback process bar.
3 Device Installation Note: All the installation and operations here should conform to your local electric safety rules. 3.1 Check Unpacked NVR When you receive the NVR from the forwarding agent, please check whether there is any visible damage. The protective materials used for the package of the NVR can protect most accidental clashes during transportation. Then you can open the box to check the accessories. Please check the items in accordance with the list.
horizontally. After the HDD is in the proper position, the columns on the two sides can lock the screw holes of the HDD to secure it. When you remove the HDD, please refer to the following figure to pull the spring up and then remove the HDD. 3.3.2 NVR11/11-P/41/41-P/41-8P/41-W/21-S2/21-P-S2/21-8P-S2 Series 1 . ○ Loosen the screws of the upper cover and side panel. 2 ○ Fix four screws in the HDD (Turn just three rounds). 3 ○ Place the HDD in accordance with the four holes in the bottom.
7 ○ Put the cover in accordance with 8 ○ Secure the screws in the rear panel and the side panel. the clip and then place the upper cover back. 3.3.3 NVR11H/11H-P/41H/41H-P/41H-8P/11HS/21HS-S2/21HS-P-S2/21HS-8P-S2/ 41HS-W-S2 Series 1. ○ Loosen the screws of the upper cover and side panel. 2 ○ Fix four screws in the HDD (Turn just three rounds). 3 ○ Place the HDD in accordance with the four holes in the bottom. 4 ○ Turn the device upside down and 5 ○ then turn the screws in firmly.
3.3.4 NVR42/42N/42-P/42-8P/42-16P/72/72-8P/42-4K/42-8P-4K/52-4KS2/52-8P-4KS2/52 -16P-4KS2/22-S2/22-P-S2/22-8P-S2 Series The following figures are based on the NVR 72-8P series. 1 Loosen the screws of the upper ○ ②Fix four screws in the HDD (Turn ③Place the HDD in accordance with cover and side panel. just three rounds). the four holes in the bottom. ④Turn the device upside down and ⑤Fix the HDD firmly. ⑥Connect the HDD cable and power then turn the screws in firmly. cable.
① Use the screwdriver to loose the screws of the rear panel and then remove the front cover. ③ Connect to the HDD data cable to the main board and the HDD port respectively. Loosen the power cable of the chassis and connect another end of the power cable to the HDD port. ② Put the HDD to the HDD bracket in the chassis and then line up the four screws to the four holes in the HDD.
③Connect to the HDD data cable to the main board ④After connect the cable, put the front cover and the HDD port respectively. Loosen the power cable back to the device and then fix screws of the rear of the chassis and connect another end of the power panel. cable to the HDD port. 3.3.7 NVR78-RH Series ①Turn the key into the hole in the front panel. ②Open the front panel. ③ Put the HDD to the slot and adjust the handle to secure it. ④Put the front panel back and use the key to fix firmly.
①Line up the handle to the HDD side (without the interface) ②Use the screwdriver to fix the handle on the HDD. 3.3.8 NVR70/70-R Series ①Use four screws to secure the HDD. ②Put the HDD to the HDD box at the front panel of the device. . ③Please pull the handle up when you are inputing the HDD box in case the the handle ④Put the HDD to the HDD box at the front panel of the device. .
collides with the front panel 3.3.9 NVR42V-8P Series ①Use 4 screws to secure the HDD ②Put the HDD to the HDD box at the front. ③Pull the HDD knob up when you put the HDD ④Put the knob back after you insert the HDD into the box in case the knob buckle may strike to the SATA board. the front panel. . 3.4 CD-ROM Installation Please follow the steps listed below. ① Open top cover and then remove the HDD bracket ② Take off the bottom of the HDD bracket and CD-ROM bracket.
③ Fix the CD-ROM bracket at the HDD bracket. ⑤ Install SATA burner. Line up the SATA burner to the hole positions. ⑦ Put the bracket back. Please adjust the CD-ROM to the proper position so that the button of the front panel is directly facing the pop-up button of the CD-ROM. ④ Install a pair of the CD-ROM bracket. Please make sure the reverse side is secure too. ⑥ User screwdriver to fix the screws. ⑧ Connect the SATA cable and power wire.
⑨ Secure the HDD bracket and put the top cover back. 3.5 Connection Sample 3.5.1 NVR100/NVR100-P Series Please refer to Figure 3-1 for connection sample. Here we take NVR100-P as an example. Figure 3-1 3.5.
Please refer to Figure 3-2 for connection sample. Here we take NVR41 as an example. Figure 3-2 3.5.3 NVR11H/11H-P/41H/41H-P/41H-8P Series Please refer to Figure 3-3 for connection sample. Here we take NVR41H as an example.
Figure 3-3 3.5.4 NVR11HS//41HS-W-S2 Series Please refer to Figure 3-4 for connection sample.
Figure 3-4 3.5.5 NVR41HS-W-S2 Series Please refer to Figure 3-5 for connection sample.
Figure 3-5 3.5.6 NVR21HS-S2/21HS-P-S2/21HS-8P-S2 Series Please refer to Figure 3-6 for connection sample. Please note the following figure is based on the NVR21HS-8P-S2.
Figure 3-6 3.5.7 NVR22-S2/22-P-S2/22-8P-S2 Series Please refer to Figure 3-7 for connection sample. Please note the following figure is based on the NVR22-8P-S2.
Figure 3-7 3.5.8 NVR42N Series Please refer to Figure 3-8 for connection sample.
3.5.9 NVR42/42-P/42-8P/42-16P/52-4KS2/52-8P-4KS2/52-16P-4KS2 Series Please refer to Figure 3-9 for connection sample. The following figure is based on our 42-8P series product. Figure 3-9 3.5.10 NVR42-4K Series Please refer to Figure 3-10 for connection sample.
Figure 3-10 3.5.11 NVR42-8P-4K Series Please refer to Figure 3-11 for connection sample. Figure 3-11 3.5.
Please refer to Figure 3-11 for connection sample. The following interface is based on the 44-4K series product. Figure 3-12 3.5.13 NVR44/44-8P/44-16P Series Please refer to Figure 3-13 for connection sample. The following interface is based on the 44-8P series product.
Figure 3-13 3.5.14 NVR48/48-16P Series Please refer to Figure 3-14 for connection sample. The following interface is based on the 48-16P series product.
3.5.15 NVR72 Series Please refer to Figure 3-15 for connection sample. Figure 3-15 3.5.16 NVR72-8P Series Please refer to Figure 3-16 for connection sample.
Figure 3-16 3.5.17 NVR74 Series Please refer to Figure 3-17 for connection sample. The following figure is based on the 74 series product.
Figure 3-17 3.5.18 NVR74-8P/74-16P Series Please refer to Figure 3-18 for connection sample. The following figure is based on the NVR74-8P series product.
Figure 3-18 3.5.19 NVR78 Series Please refer to Figure 3-19 for connection sample.
Figure 3-19 3.5.20 NVR78-16P Series Please refer to Figure 3-20 for connection sample.
Figure 3-20 3.5.21 NVR78-RH Series Please refer to Figure 3-21 for connection sample.
Figure 3-21 3.5.22 NVR70 Series Please refer to Figure 3-22 for connection sample.
Figure 3-22 3.5.23 NVR70-R Series Please refer to Figure 3-23 for connection sample.
Figure 3-23 3.5.24 NVR42V-8P Series Please refer to Figure 3-24 for connection sample.
Figure 3-24 142
4 Local Basic Operation 4.1 Boot up and Shutdown 4.1.1 Boot up Caution Before the boot up, please make sure: For device security, please connect the NVR to the power adapter first and then connect the device to the power socket. The rated input voltage matches the device power on-off button. Please make sure the power wire connection is OK. Then click the power on-off button. Always use the stable current, if necessary UPS is a best alternative measure.
For reset information, please refer to chapter 4.2.2. Figure 4-1 Click Cancel button, system pops up the following interface for you to confirm. See Figure 4-2. Check the box here, system will not pop up the change password interface the next time. Figure 4-2 4.2.2 Reset Password Once you forgot password, you can answer the security questions you set in chapter 4.2.1 to reset the password. In login interface, click . See Figure 4-3.
Figure 4-3 System pops up the following dialogue box, please answer the security questions and then input the new password twice. See Figure 4-4. . Figure 4-4 4.3 Startup Wizard After device successfully booted up, it goes to startup wizard. Click Cancel/Next button, you can see system goes to login interface. Tips Check the box Startup button here, system goes to startup wizard again when it boots up the next time.
Figure 4-5 Click Smart add, Cancel button or Next button, system goes to login interface. See Figure 4-6. System consists of three accounts: Username: admin. Password: admin. (administrator, local and network) Username: 888888. Password: 888888. (administrator, local only) Username: default. Password: default (hidden user). Hidden user ―default‖ is for system interior use only and can not be deleted. When there is no login user, hidden user ―default‖ automatically login.
Figure 4-7 Click Next button, you can go to network interface. See Figure 4-8. For detailed information, please refer to chapter 4.14. Figure 4-8 Click Next button, you can set P2P function. Scan the QR code, download the App to the cellphone, you can use the smart phone to add the device. See Figure 4-9. For detailed information, please refer to chapter 4.14.1.16.
Figure 4-9 Click Next button, you can go to remote device interface. See Figure 4-10. For detailed information, please refer to chapter 4.5.
Click Next button, you can go to Schedule interface. See Figure 4-11. For detailed information, please refer to chapter 4.10.2. Figure 4-11 Click Finish button, system pops up a dialogue box. Click the OK button, the startup wizard is complete. See Figure 4-12. Figure 4-12 4.4 Navigation Bar You need to go to the Main menu->Setting->System->General to enable navigation bar function; otherwise you can not see the following interface. The navigation bar is shown as below. See Figure 4-13.
4.4.1 Main Menu to go to the main menu interface. Click button 4.4.2 Dual-screen operation Important This function is for some series only. to select screen 2, you can view an interface shown as below. See Figure 4-14. It is a Click navigation bar for screen 2. Figure 4-14 Click any screen split mode; HDMI2 screen can display corresponding screens. Now you can control two screens. See Figure 4-15. Figure 4-15 Note Screen 2 function is null if tour is in process.
Click button , system goes to alarm status interface. It is to view device status and channel status. Please refer to chapter 4.17.1.4. 4.4.9 Channel Info Click button , system goes to the channel information setup interface. It is to view information of the corresponding channel. See Figure 4-16. Figure 4-16 4.4.10 Registration Click , system goes to the registration interface. Please refer to chapter 4.5. 4.4.11 Network Click , system goes to the network interface.
When the network camera(s) and the NVR are in the same router or switch, you can use smart add function to add all network cameras to the NVR at the same time. There are two ways for you to go to the smart add interface. From the startup wizard, click Smart add button. See Figure 4-17. Figure 4-17 On the preview interface, right click mouse and then select Smart add. See Figure 4-18. Figure 4-18 Now you can go to the smart add interface. See Figure 4-19.
Figure 4-19 Click smart add button, you can see device enables DHCP function. See Figure 4-20.
System pops up the following interface for you to confirm IP information if there are several IP segments. See Figure 4-21. Figure 4-21 Now you can see system is auto adding IPC to the corresponding channels. See Figure 4-22.
You can see the following dialog box after system successfully added network cameras. See Figure 4-23. Figure 4-23 4.6 Camera 4.6.1 Registration From Main menu->Setting->Camera->Registration, you can see the following interface. See Figure 4-24. Device search: Click the button; you can search all network cameras in the same network segment. Channel: It is the device channel number. If you have not added the network camera, the channel number is shown as .
Figure 4-24 Modify: Click Modify button, you can see the following interface. See Figure 4-25. Name: Change current channel name. Protocol: Select protocol from the dropdown list. IP Address: Input IP address here. TCP port: Input TCP port value. User name/Password: Input user name and password. The default user name is admin and the default password is admin. Decoder butter: There are three options: realtime/fluent/default. Please select from the dropdown list.
Figure 4-25 4.6.2 Short-Cut Menu In the preview interface, for the channel of no IPC connection, you can click the icon ―+‖ in the centre of the interface to quickly go to the registration interface (Figure 4-24.). See Figure 4-26. Figure 4-26 4.6.3 Image From main menu->setting->camera->image, you can see the image interface is shown as below. See Figure 4-27. Channel: Select a channel from the dropdown list. Saturation: It is to adjust monitor window saturation. The value ranges from 0 to 100.
Brightness: It is to adjust monitor window bright. The value ranges from 0 to 100. The default value is 50. The larger the number is, the bright the video is. When you input the value here, the bright section and the dark section of the video will be adjusted accordingly. You can use this function when the whole video is too dark or too bright. Please note the video may become hazy if the value is too high. The recommended value ranges from 40 to 60. Contrast: It is to adjust monitor window contrast.
Figure 4-27 4.6.4 Channel Name From main menu->Setting->Camera-Channel name, you can see an interface shown as in Figure 4-28. It is to modify channel name. It max supports 31-character. Please note you can only modify the channel name of the connected network camera.
4.6.5 Upgrade Note Right now, the NVR can upgrade the IPC via the USB device or WEB. You can upgrade 8 network cameras of the same model (or the NVR supported) at the same time. It is to update the network camera. From main menu->setting->camera->remote, the interface is shown as below. See Figure 4-29. Click Browse button and then select the upgrade file. Then select a channel (or you can select device type filter to select several devices at the same time.) Click Begin button to upgrade.
4.6.7 Built-in Switch Setup The built-in switch function is for product of PoE port. From Main menu->Setting->Network->Switch, you can set switch IP address, subnet mask, gateway and etc. See Figure 4-31. Figure 4-31 4.7 Preview After device booted up, the system is in multiple-channel display mode. See Figure 4-32.Please note the displayed window amount may vary. The following figure is for reference only. Please refer to chapter 1.3 Specifications for the window-amount your product supported.
If you want to change system date and time, you can refer to general settings (Main Menu->Setting->System->General). If you want to modify the channel name, please refer to the display settings (Main Menu->Camera->CAM name) Please refer to the following sheet for detailed information.
Put the middle button at the centre of the zone you want to zoom in, and move the mouse, you can view an interface shown as in Figure 4-35. Figure 4-35 Right click mouse to cancel zoom and go back to the original interface. 3) Manual record function It is to backup the video of current channel to the USB device. System can not backup the video of multiple-channel at the same time. Click button , system begins recording. Click it again, system stops recoridng.
Search: Click it to go to Search interface to search and playback a record file. Record control: Enable/disable record channel. Alarm output: It is to set alarm output mode. Camera registration: Search and add a remote device. Alarm output: Generate alarm output signal manually. Main menu: Go to system main menu interface. Tips: Right click mouse to go back to the previous interface. Figure 4-36 4.7.4 Preview Display Effect Setup 4.7.4.
Please refer to the following sheet for detailed information. Item Note Period There are two periods in one day. You can set different sharpness, brightness, and contrast setup for different periods. Effective Time Check the box here to enable this function and then set period time. Sharpness Brightness The value here is to adjust the edge of the video. The value ranges from 0 to 100. The larger the value is, the clear the edge is and vice versa.
4.7.4.2 Display From Main Menu->Setting->System->Display, you can go to the following interface. See Figure 4-38. Here you can set menu and video preview effect. All you operation here does not affect the record file and playback effect. Figure 4-38 Now you can set corresponding information. Display the intelligent rule(s): Check the box to enable IVS function, system can display IVS rule on the preview interface. Please note this function is for some series only.
VGA+HDMI2: It is for dual-screen operation. Please select from the dropdown list according to your actual situation. Click Apply button, system needs to restart to activate new setup. For example, 32+4 means for VGA, system max supports 32-window split and for HDMI2, system max supports 4-window split. Please note this function is for some series only. Color mode: Please select from the dropdown list. It is to set video color mode. Transparency: Here is for you to adjust menu transparency.
Set preview display mode: On the preview interface, right click mouse, you can view right-click menu. Now you can select preview window amount and channel. Set channel display mode: On the preview interface, if you want to change channel 1 and channel 16 position, please right click channel 1 video window and then drag to the channel 16 video window, release button, you can change channel 1 and channel 16 position. Tour setup: Here you can set preview window channel display mode and interval.
Figure 4-41. Figure 4-41 Now you can see an interface shown as in Figure 4-42. You can set fish eye installation mode and display mode. Note: For the non-fish eye channel, system pops up dialogue box to remind you it is not a fish eye channel and does not support de-warp function. If system resources are insufficient, system pops up the corresponding dialogue box too.
There are three installation modes: ceiling mount/wall mount/ground mount. The different installations modes have different de-warp modes. Please refer to the following sheet for detailed information.
4.8.2 Fish eye de-warp during playback On the main menu, click search button. Select 1-window playback mode and corresponding fish eye channel, click Right click the to play. , you can go to the de-warp playback interface. For detailed information, please refer to chapter 4.8.1. 4.9 PTZ Note: Before you control the PTZ, please make sure the PTZ decoder and the NVR network connection is OK and the corresponding settings are right. 4.9.
Figure 4-44 If you are connecting to network PTZ, the PTZ type shall be remote. See Figure 4-45. Figure 4-45 4.9.2 PTZ Control After completing all the setting please click save button. Right click mouse (click ―Fn‖ Button in the front panel or click ―Fn‖ key in the remote control). The interface is shown as in Figure 4-46. Please note you can only go to the PTZ control interface when you are in 1-window display mode.
Figure 4-46 The PTZ setup is shown as in See Figure 4-47. Please note the commend name is grey once device does not support this function. The PTZ operation is only valid in one-window mode. Here you can control PTZ direction, speed, zoom, focus, iris, preset, tour, scan, pattern aux function, light and wiper, rotation and etc. Speed is to control PTZ movement speed. The value ranges from 1 to 8.The speed 8 is faster than speed 1. You can use the remote control to click the small keyboard to set.
zone you dragged, the higher the speed. Figure 4-48 Name Function key function Zoom Near Focus Near Iris close In Figure 4-47, click Shortcut key Function key function Far Shortcut key │ Far ►│ Open to open the menu, you can set preset, tour, pattern, scan and etc. See Figure 4-49. Figure 4-49 Please refer to the following sheet for detailed information. Please note the above interface may vary due to different protocols.
Click , you can go to the following interface to set preset, tour, pattern, and scan. See Figure 4-50. Figure 4-50 Preset Setup In Figure 4-50, click preset button and use eight direction arrows to adjust camera to the proper position. The interface is shown as in Figure 4-51. Click Set button and then input preset number. Click Set button to save current preset. Figure 4-51 Tour Setup In Figure 4-50, click tour button. Input tour value and preset No.
Figure 4-52 Pattern Setup In Figure 4-50, click Pattern button and input pattern number. Click Begin button to start direction operation. Or you can go back to Figure 4-47 to operate zoom/focus/iris/direction operation. In Figure 4-50, click End button. Figure 4-53 Scan Setup In Figure 4-50, click Scan button. Use direction buttons to set camera left limit and then click Left button. Use direction buttons to set camera right limit and then click Right button. Now the scan setup process is complete.
Figure 4-54 4.9.2.2 Call PTZ Function Call Preset In Figure 4-49, input preset value and then click to call a preset. Click again to stop call. Call Pattern In Figure 4-49, input pattern value and then click call. to call a pattern. Click again to stop Call Tour In Figure 4-49, input tour value and then click to call a tour. Click again to stop call. Call Scan In Figure 4-49, input Scan value and then click to call a tour. Click again to stop call. Rotate to enable the camera to rotate.
Figure 4-55 4.10 Record and Snapshot The record/snapshot priority is: Alarm->Motion detect->Schedule. 4.10.1 Encode 4.10.1.1 Encode Encode setting is to set IPC encode mode, resolution, bit stream type and etc From Main menu->Setting->System->Encode, you can see the following interface. See Figure 4-56. Channel: Select the channel you want. Type: Please select from the dropdown list. There are three options: regular/motion detect/alarm.
Figure 4-56 4.10.1.2 Overlay Click overlay button, you can see an interface is shown in Figure 4-57. Cover area: Here is for you to cover area section. You can drag you mouse to set proper section size. In one channel video, system max supports 4 zones in one channel. You can set with Fn button or direction buttons. Preview/monitor: The cover area has two types. Preview and Monitor. Preview means the privacy mask zone can not be viewed by user when system is in preview status.
Figure 4-57 4.10.1.3 Snapshot Here you can set snapshot mode, picture size, quality and frequency. See Figure 4-58. Snapshot mode: There are two modes: regular and trigger. If you set regular mode, you need to set snapshot frequency. If you set trigger snapshot, you need to set snapshot activation operation. Image size: Here you can set snapshot picture size. Image quality: Here you can set snapshot quality. The value ranges from 1 to 6.
Figure 4-58 Figure 4-59 4.10.2 Schedule The record type priority is: Alarm>Motion detect>Regular. 4.10.2.1 Schedule Record Set record time, record plan and etc. Please note system is in 24-hour record by default after its first boot up. In the main menu, from Main menu->Setting->Storage->Schedule, you can go to schedule menu. See Figure 4-63. There are total six periods.
Channel: Please select the channel number first. You can select ―all‖ if you want to set for the whole channels. : Sync connection icon. Select icon together. Now the icon is shown as of several dates, all checked items can be edited or . : Click it to delete a record type from one period. Record Type: Please check the box to select corresponding record type. There are four types: Regular/MD (motion detect)/Alarm/MD&Alarm.
Figure 4-62 Please check the box to select the corresponding function. After completing all the setups please click save button, system goes back to the previous menu. There are color bars for your reference. Green color stands for regular recording, yellow color stands for motion detection and red color stands for alarm recording. The white means the MD and alarm record is valid.
Figure 4-64 Quick Setup Copy function allows you to copy one channel setup to another. After setting in channel 1, click Copy button, you can go to interface Figure 4-65. You can see current channel name is grey such as channel 1. Now you can select the channel you want to paste such as channel 5/6/7. If you want to save current setup of channel 1 to all channels, you can click the first box ―ALL‖. Click the OK button to save current copy setup.
Figure 4-66 From Main menu->Setting->Camera->Encode->Snapshot, you can go to snapshot interface. See Figure 4-67. Select the snapshot channel from the dropdown list and then select snapshot mode as Timing (Schedule) from the dropdown list and then set picture size, quality and snapshot frequency.
In the main menu, from Main menu->Setting->Storage->Schedule, you can go to schedule menu. See Figure 4-63. Here you can set snapshot period. There are total six periods in one day. Please refer to chapter 4.10.2.1 for detailed setup information. The setup steps are general the same. Figure 4-68 Note Please note the trigger snapshot has the higher priority than regular snapshot.
