Amcrest NVR11H Series User manual

Amcrest Network Video Recorder
User’s Manual
V 1.5.0

i
Table of Contents
1Features and Specifications .....................................................................................................1
1.1 Overview............................................................................................................................1
1.2 Features.............................................................................................................................1
1.3 Specifications.....................................................................................................................2
1.3.1 NVR11H/11H-P Series................................................................................................2
1.3.2 41H-8P Series.............................................................................................................5
2Front Panel and Rear Panel.....................................................................................................7
2.1 Front Panel........................................................................................................................7
2.1.1 NVR11H/11H-P/41H-8P Series...................................................................................7
2.2 Rear Panel.........................................................................................................................7
2.2.1 NVR11H/11H-P/41H-8P Series...................................................................................7
2.3 Alarm Connection..............................................................................................................9
2.3.1 Alarm Port ...................................................................................................................9
2.3.2 Alarm input port...........................................................................................................9
2.3.3 Alarm input and output port.......................................................................................10
2.3.4 Alarm relay specifications .........................................................................................10
2.4 Bidirectional talk ..............................................................................................................10
2.4.1 Device-end to PC-end...............................................................................................10
2.4.2 PC-end to the device-end......................................................................................... 11
2.5 Mouse Operation.............................................................................................................11
3Device Installation...................................................................................................................13
3.1 Check Unpacked NVR.....................................................................................................13
3.2HDD Installation...............................................................................................................13
3.2.1 NVR11H/11H-P/41H-8P Series.................................................................................13
3.3 Sample Connection.........................................................................................................14
3.3.1 NVR11H/11H-P/41H-8P Series.................................................................................14
4Local Basic Operation.............................................................................................................15
4.1 Boot up and Shutdown....................................................................................................15
4.1.1 Boot up......................................................................................................................15
4.1.2 Shutdown...................................................................................................................15
4.2 Startup Wizard.................................................................................................................15
4.3 Navigation Bar.................................................................................................................19
4.3.1 Main Menu.................................................................................................................20
4.3.2 Multiview....................................................................................................................20
4.3.3 Tour............................................................................................................................20
4.3.4 PTZ............................................................................................................................20
4.3.5 Color..........................................................................................................................20
4.3.6 Search.......................................................................................................................20
4.3.7 Alarm Status..............................................................................................................20
4.3.8 Channel Info..............................................................................................................20
4.3.9 Remote Device..........................................................................................................21
4.3.10 Network .....................................................................................................................21
4.3.11 HDD Manager ...........................................................................................................21

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4.3.12 USB Manager............................................................................................................21
4.4 Remote Device................................................................................................................21
4.4.1 Remote Device Connection......................................................................................22
4.4.2 Shortcut Menu...........................................................................................................23
4.4.3 Camera......................................................................................................................23
4.4.4 Channel Name ..........................................................................................................25
4.4.5 Upgrade.....................................................................................................................26
4.4.6 UPNP.........................................................................................................................26
4.4.7 Built-in Switch Setup.................................................................................................27
4.5 Preview............................................................................................................................27
4.5.1 Preview......................................................................................................................28
4.5.2 Preview control interface...........................................................................................28
4.5.3 Right Click Menu.......................................................................................................30
4.5.4 Preview Display Effect Setup....................................................................................30
4.5.4.1 Video Settings...................................................................................................30
4.5.4.2 GUI....................................................................................................................32
4.5.5 Preview Tour Parameters..........................................................................................33
4.6 PTZ..................................................................................................................................34
4.6.1 PTZ Control...............................................................................................................34
4.6.1.1 PTZ Function Setup..........................................................................................36
4.6.1.2 Call PTZ Function.............................................................................................39
4.7 Record and Snapshot......................................................................................................40
4.7.1 Audio Video...............................................................................................................40
4.7.1.1 Encode..............................................................................................................40
4.7.1.2 Overlay..............................................................................................................41
4.7.1.3 Snapshot...........................................................................................................42
4.7.2 Schedule ...................................................................................................................44
4.7.2.1 Schedule Record ..............................................................................................44
4.7.2.2 Schedule Snapshot...........................................................................................47
4.7.3 Motion detect record/snapshot..................................................................................49
4.7.3.1 Motion detect record.........................................................................................49
4.7.3.2 Motion Detect Snapshot ...................................................................................51
4.7.4 Alarm Record/Snapshot............................................................................................52
4.7.4.1 Alarm Record....................................................................................................52
4.7.4.2 Alarm Snapshot ................................................................................................53
4.7.5 Manual Record/Snapshot..........................................................................................54
4.7.5.1 Manual Record..................................................................................................54
4.7.5.2 Manual Snapshot..............................................................................................55
4.7.6 Holiday Record/Snapshot .........................................................................................55
4.7.6.1 Holiday Record .................................................................................................55
4.7.6.2 Holiday Snapshot..............................................................................................57
4.7.7 Other Record/Snapshot ............................................................................................57
4.8 Playback and Search ......................................................................................................57
4.8.1 Real-time Playback...................................................................................................57
4.8.2 Search Interface........................................................................................................57
4.8.2.1 Smart Search....................................................................................................61

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4.8.2.2 Accurate playback by time................................................................................62
4.8.2.3 Mark Playback ..................................................................................................63
4.8.3 Picture Playback........................................................................................................65
4.9 Backup.............................................................................................................................65
4.9.1 File Backup................................................................................................................65
4.9.2 Import/Export.............................................................................................................66
4.9.3 Backup Log ...............................................................................................................67
4.9.4 USB Device Auto Pop-up..........................................................................................68
4.10 Alarm ...............................................................................................................................69
4.10.1 Detect Alarm..............................................................................................................69
4.10.1.1 Motion Detect....................................................................................................69
4.10.1.2 Tampering.........................................................................................................73
4.10.1.3 Video Loss ........................................................................................................73
4.10.2 Alarm Output.............................................................................................................74
4.10.3 Alarm Setup...............................................................................................................75
4.10.4 Abnormality ...............................................................................................................80
4.11 Network............................................................................................................................82
4.11.1 Basic Setup...............................................................................................................82
4.11.1.1 Connection........................................................................................................83
4.11.1.2 WIFI...................................................................................................................84
4.11.1.3 PPPoE...............................................................................................................85
4.11.1.4 DDNS Setup .....................................................................................................86
4.11.1.5 UPnP.................................................................................................................88
4.11.1.6 IP Filter..............................................................................................................89
4.11.1.7 Email.................................................................................................................91
4.11.1.8 FTP ...................................................................................................................92
4.11.1.9 SNMP................................................................................................................94
4.11.1.10 Multicast ...........................................................................................................94
4.11.1.11 Alarm Center.....................................................................................................96
4.11.1.12 Register............................................................................................................96
4.11.1.13 Switch...............................................................................................................97
4.11.1.14 P2P...................................................................................................................98
4.11.2 Network Test..............................................................................................................99
4.11.2.1 Network Test .....................................................................................................99
4.11.2.2 Network Load..................................................................................................100
4.12 HDD Setup ....................................................................................................................100
4.12.1 Format.....................................................................................................................100
4.12.2 HDD Information......................................................................................................101
4.12.3 Channel...................................................................................................................103
4.13 Basic Setups..................................................................................................................105
4.13.1 Device Setup...........................................................................................................105
4.13.2 Data and Time.........................................................................................................106
4.13.3 Holiday.....................................................................................................................107
4.14 Device Maintenance and Manager ...............................................................................108
4.14.1 System Info .............................................................................................................108
4.14.1.1 Version............................................................................................................108

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4.14.1.2 BPS.................................................................................................................109
4.14.1.3 Online User.....................................................................................................110
4.14.1.4 Remote Device Information............................................................................110
4.14.1.5 Device Status...................................................................................................111
4.14.1.6 Firmware......................................................................................................... 112
4.14.2 Log...........................................................................................................................113
4.14.3 Account.................................................................................................................... 114
4.14.3.1 Add/Modify Group...........................................................................................115
4.14.3.2 Add/Modify User .............................................................................................116
4.14.4 Upgrade...................................................................................................................117
4.14.5 Default.....................................................................................................................118
4.14.6 Auto Maintain ..........................................................................................................118
4.14.7 Logout /Shutdown/Restart.......................................................................................119
5Web Operation......................................................................................................................120
5.1 General Introduction......................................................................................................120
5.1.1 Preparation..............................................................................................................120
5.1.2 Log in.......................................................................................................................121
5.2 Local Access..................................................................................................................123
5.3 Remote Access..............................................................................................................123
5.3.1 UPnP.......................................................................................................................123
5.3.2 Port Forwarding.......................................................................................................123
5.3.3 Accessing via a PC.................................................................................................124
5.3.4 Accessing via a Mobile Device ...............................................................................124
5.4 LAN Mode......................................................................................................................127
5.5 Real-time Monitor..........................................................................................................128
5.6 PTZ................................................................................................................................129
5.7 Image/Alarm-out............................................................................................................131
5.7.1 Image.......................................................................................................................131
5.7.2 Alarm output............................................................................................................131
5.8 WAN Login.....................................................................................................................131
5.9 Setup .............................................................................................................................133
5.9.1 Camera....................................................................................................................133
5.9.1.1 Remote Device ...............................................................................................133
5.9.1.2 Image..............................................................................................................135
5.9.1.3 Encode............................................................................................................137
5.9.1.3.1 Encode..........................................................................................................137
5.9.1.3.2 Snapshot.......................................................................................................138
5.9.1.3.3 Video Overlay................................................................................................139
5.9.1.3.4 Path...............................................................................................................139
5.9.1.4 Channel Name................................................................................................140
5.9.1.5 IPC Upgrade...................................................................................................140
5.9.2 Network ...................................................................................................................141
5.9.2.1 TCP/IP.............................................................................................................141
5.9.2.2 P2P .................................................................................................................142
5.9.2.3 Connection......................................................................................................142
5.9.2.4 PPPoE.............................................................................................................143

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5.9.2.5 DDNS..............................................................................................................143
5.9.2.6 IP filter.............................................................................................................145
5.9.2.7 Email...............................................................................................................145
5.9.2.8 UPnP...............................................................................................................147
5.9.2.9 SNMP..............................................................................................................148
5.9.2.10 Multicast..........................................................................................................149
5.9.2.11 Auto Register..................................................................................................149
5.9.2.12 Alarm Center...................................................................................................150
5.9.2.13 HTTPS ............................................................................................................150
5.9.2.13.1 Create Server Certificate ............................................................................151
5.9.2.13.2 Download root certificate ............................................................................151
5.9.2.13.3 View and set HTTPS port ...........................................................................154
5.9.2.13.4 Login............................................................................................................155
5.9.3 Event .......................................................................................................................155
5.9.3.1 Video detect....................................................................................................155
5.9.3.1.1 Motion Detect................................................................................................155
5.9.3.1.2 Video Loss ....................................................................................................159
5.9.3.1.3 Tampering .....................................................................................................160
5.9.3.2 Alarm...............................................................................................................160
5.9.3.2.1 Local Alarm ...................................................................................................161
5.9.3.2.2 Net Alarm ......................................................................................................163
5.9.3.2.3 IPC external alarm........................................................................................163
5.9.3.2.4 IPC OfflineAlarm ..........................................................................................164
5.9.3.3 Abnormality.....................................................................................................164
5.9.4 Storage....................................................................................................................166
5.9.4.1 Schedule.........................................................................................................166
5.9.4.2 Storage Media.................................................................................................168
5.9.4.2.1 Local Storage................................................................................................168
5.9.4.2.2 HDD ..............................................................................................................168
5.9.4.3 Record Control................................................................................................169
5.9.4.4 Storage............................................................................................................170
5.9.4.4.1 Main Stream..................................................................................................170
5.9.4.4.2 Sub Stream...................................................................................................170
5.9.4.4.3 Snapshot.......................................................................................................170
5.9.5 Setting .....................................................................................................................170
5.9.5.1 General ...........................................................................................................171
5.9.5.1.1 General .........................................................................................................171
5.9.5.1.2 Date and time................................................................................................171
5.9.5.1.3 Holiday Setup................................................................................................172
5.9.5.2 Account...........................................................................................................173
5.9.5.2.1 User name.....................................................................................................173
5.9.5.2.2 Group............................................................................................................175
5.9.5.3 Display ............................................................................................................176
5.9.5.3.1 Display ..........................................................................................................177
5.9.5.3.2 Tour...............................................................................................................177
5.9.5.4 Alarm Out........................................................................................................178

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5.9.5.5 Default.............................................................................................................179
5.9.5.6 Import/Export ..................................................................................................179
5.9.5.7 Auto maintain..................................................................................................180
5.9.5.8 Upgrade ..........................................................................................................180
5.10 Information.....................................................................................................................180
5.10.1 Version.....................................................................................................................180
5.10.2 Log...........................................................................................................................181
5.10.3 Online User .............................................................................................................182
5.11 Playback........................................................................................................................182
5.12 Alarm .............................................................................................................................186
5.13 Logout............................................................................................................................187
5.14 Un-install Web Control...................................................................................................188
6Glossary................................................................................................................................189
7Appendix A HDD Capacity Calculation.................................................................................190
8Appendix B Compatible Network Camera............................................................................191
9Appendix C Compatible Backup Device List........................................................................195
10 Appendix D Compatible WIFI Device List.........................................................................203
11 Appendix E Compatible CD/DVD......................................................................................204
12 Appendix F Compatible Display List.................................................................................205
13 Appendix G Toxic or Hazardous Materials or Elements...................................................206

vii
Welcome
Thank you for purchasing our Amcrest 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 included
packing list. Contact your local retailerASAP if something is missing or damaged.

viii
Important Safeguards and Warnings
1. Electrical safety
Installation and operation 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 any fires or electric shock caused by improper handling
or installation.
2. Transportation security
Heavy stress, violent vibrations, and moisture are not allowed during transportation, storage, or
installation.
3. Installation
Keep upright. Handle with care.
Do not apply power to the NVR before completing the installation.
Do not place objects on the NVR.
4. Qualified engineers needed
All examinations and repair work should be done by qualified service engineers.
We are not liable for any problems caused by unauthorized modifications or attempted repair.
5. Environment
The NVR should be installed in a cool, dry place away from direct sunlight, flammable materials,
explosive substances, etc.
This series product should be transported, stored, and used in the specified environments.
The environment needs to comply with the following conditions:
The function of the ITE with concerns to IEC 60950-1 is considered not likely to require a
connection to an Ethernet network with an outside power source, including campus
environment.
The installation instructions clearly state that the ITE is to be connected only to PoE networks
without routing to outside power sources.
6. Accessories
Be sure to use only the accessories recommended by manufacturer.
Before installing, please open the package and check that all the components are included.
Contact your local retailerASAP if something is broken or missing in your package.
7. Lithium battery
Improper battery use may result in fire, explosion, or personal injury!
When replacing the battery, please make sure you are using the same model!
CAUTION:
RISK OF EXPLOSION IF THE BATTERY IS REPLACED WITH AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

ix
Before operating, please read the following instructions carefully.
Installation environment
Keep away from extremely hot places and sources of heat;
Avoid direct sunlight;
Keep away from extremely humid places;
Avoid violent vibrations;
Do not put other devices on the top of the NVR;
Install in a well ventilated place; do not block the vents.
Please refer to the packing list in the box to ensure all accessories are
present.

1
1 Features and Specifications
1.1 Overview
This series NVR is a high performance network video recorder. This series supports local preview,
multiple-window display, local storage of recordings, remote control, mouse shortcut menu operations,
and remote management and control functions.
This series product supports centeral storage, front-end storage, and client-end storage. The monitor
zone in the front-end can be setup anywhere. Working with other front-end devices such as IPC or NVS,
this series product creates a strong surveillance network. This system utilizes standard network cable to
connect the cameras to the NVR. The existing infrastructure can be used to accomplish this avoiding the
installion of multiple wires. The whole project is uses simple connections, is low-cost, and requires little
maintenance.
This series NVR can be used in many areas such as public security, water conservation, transportation,
education, etc.
1.2 Features
Real-time
Surveillance
Connect a monitor to the HDMI or VGA port to watch what is going on in
real-time. Some series support TV/VGA/HDMI output at the same time.
Shortcut menu to multiple options while previewing.
Supports popular PTZ decoder control protocols. Supports presets,
tours, and patterns.
Playback
Supports simultaneous real-time recording and search, playback,
network monitor, record search, download, etc for each channel.
Supports various playback modes: slow play, fast play, backward play,
and frame by frame play.
Supports time title overlay so that you can accurately determine when
events occur.
Supports specified zone enlargement.
User
Management
Each group has different management rights that can be edited freely.
Every user belongs to an exclusive group.
Storage
Via a corresponding setup (such as alarm setup and schedule setup),
you can backup related audio/video data on the network video recorder.
Supports Web recording, recording local video, and storing files on the
client end.
Alarm
Responds to external alarms simultaneously (within 200MS), and based
on user’s pre-defined relay setup, the system can process the alarm
input and prompt the user by screen and voice (supports pre-recorded
audio).
Supports a central alarm server setup, so that alarm information can
remotely notify users automatically. Alarm input can be derived from
various connected peripheral devices.
Alerts you remotely via email.

2
Network
Monitor
Sends audio/video data compressed by the IPC or NVS through the
network to the client-end. The data is then decompressed and
displayed.
Supports a max of 128 simultaneous connections.
Transmits audio/video data via HTTP, TCP, UDP, MULTICAST,
RTP/RTCP, etc.
Transmits some alarm data or alarm info via SNMP.
Supports WEB access over WAN/LAN.
Window Split
Adopts video compression and digital processing to show several
windows in one monitor. Supports 1/4/8/9/16/25/36-window display
during preview and 1/4/9/16-window display during playback. (Window
split amount varies based on model)
Record
Supports normal/motion detection/alarm recording functions. Saves the
recorded files on the HDD, USB device, client-end PC, or network
storage server. You can search or playback the saved files at the
local-end or via the Web/USB device.
Backup
Supports network backup and USB2.0 backup functions. The recorded
files can be saved on a network storage server, peripheral USB2.0
device, burner, etc.
Network
Management
Supervise NVR configuration and control power via Ethernet.
Supports management via WEB interface.
Peripheral
Equipment
Management
Supports peripheral equipment management such as protocol setup and
port connection.
Supports transparent data transmission such as RS232 (RS-422),
RS485 (RS-485).
Auxiliary
Supports switching between NTSC and PAL.
Supports real-time system resources information and running statistics
display.
Supports log files.
Local GUI output. Shortcut menu operations via mouse.
IR control function (for some series product only). Shortcut menu
operation via remote control.
Supports IPC or NVS remote video preview and control.
1.3 Specifications
1.3.1 NVR11H/11H-P Series
Model
11H Series
11H-P Series
System
System
Resources
4/8-ch series product supports 4/8 HD connections respectively.
Total bandwidth supports 28/56Mbps respectively.
OS
Embedded Linux real-time operating system
Operation
Interface
WEB/Local GUI

3
Model
11H Series
11H-P Series
Decode
Video Decode
Type
H.264/MJPEG
Decode
Capability
Max 2-ch 1080P 30fps or 4-ch 720P 30fps or 8-ch D1 30fps
Video
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
Audio
Audio Input
1-ch bidirectional talk input
Audio Output
1-ch bidirectional talk output
Audio
Compression
Standard
G.711a
Alarm
Alarm Input
N/A
Alarm Output
N/A
Funciton
Storage
1 built-in SATA port
Multiple-Chann
el Playback
Max 8-channel D1 or 4-channel 720P or 2-channel 1080P playback
Port and
Indicator
RS232 Port
N/A
RS485 Port
N/A

4
Model
11H Series
11H-P Series
USB Port
2 peripheral USB2.0 ports.
Network
Connection
1 RJ45 10/100Mbps self-adaptive Ethernet port.
PoE
N/A
4
Power Port
1 power socket. Power adapter
supplies DC 12V power.
1 power socket. Power adapter
supplies DC 48V power.
Power Button
N/A
Power On-off
Button
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 (Excludes HDD)
Working
Temperature
﹣10ºC～﹢55ºC
Working
Humidity
10℅～90℅
Air pressure
86kPa～106kPa
Dimension
325mm×250.58mm×51mm
Weight
0.5kg～1kg (Excludes HDD)
Installation
Mode
Desk installation

5
1.3.2 41H-8P Series
Model
41H-8P Series
System
System
Resources
4/8-ch series products support 4/8 HD connections respectively.
Total bandwidth supports 28/56Mbps respectively.
OS
Embedded Linux real-time operating system
Operation
Interface
WEB/Local GUI
Decode
Video Decode
Type
H.264/MJPEG/MJPEG4
Decode
Capability
Max 2-ch 5M 25fps or 4-ch 3M 25fps or 4-ch 1080P 30fps
or 8-ch 720P 30fs
Video
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
1/4/8/9-window
Audio
Audio Input
1-ch bidirectional talk input
Audio Output
1-ch bidirectional talk output
Audio
Compression
Standard
G.711a
Alarm
Alarm Input
N/A
Alarm Output
N/A
Funciton
Storage
1 built-in SATA port
Multiple-Chann
el Playback
Max 4-channel 1080P playback
Port and
Indicator
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
8
Power Port
1 power socket. Power adapter supplies DC 48V power.

6
Model
41H-8P Series
Power Button
1 button
Power On-off
Button
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 (Excludes HDD)
Working
Temperature
﹣10ºC～﹢55ºC
Working
Humidity
10℅～90℅
Air pressure
86kPa～106kPa
Dimension
325mm×250.58mm×51mm
Weight
0.5kg～1kg (Excludes HDD)
Installation
Mode
Desk installation

7
2 Front Panel and Rear Panel
2.1 Front Panel
2.1.1 NVR11H/11H-P/41H-8P Series
The front panel is shown as in Figure 2-1.
Figure 2-1
Please refer to the following sheet for detailed information.
Icon
Name
Function
NET
Network status
indicator light
The red light turns on when the network
connection is abnormal.
PWR
Power indicator
light
The red light turns on when the power connection
is OK.
HDD
HDD status
indictor light
The red light turns on when HDD is abnormal.
IR
Remote control
receiver
Used to receive signal from the remote control.
2.2 Rear Panel
2.2.1 NVR11H/11H-P/41H-8P Series
The NVR11H rear panel is shown as in Figure 2-2.
Figure 2-2
The NVR11H-P panel is shown as in Figure 2-3.
Figure 2-3

8
The NVR41H-8P rear panel is shown as in Figure 2-4.
Figure 2-4
Please refer to the following sheet for detailed information.
Port Name
Connection
Function
USB2.0 port
USB2.0 port. Connect a mouse, USB storage
device, USB burner, etc.
Network port
10M/100Mbps self-adaptive Ethernet port.
Connects to the network.
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. Outputs analog video
signal. This connects to the monitor to view analog
video.
GND
Ground end
/
Power input port
Power socket.
For NVR11H series, inputs DC 12V/2A.
For NVR11H-P series, inputs DC 48V/1.25A.
For NVR41H-8P series, inputs DC 48V/2A.
MIC IN
Audio input port
Bidirectional talk input port. This is used to receive
the analog audio signal from the devices such as a
microphone.
MIC OUT
Audio output
port
Audio output port. This is used to output the
analog audio signal to devices such as an
amplifier.
Bidirectional talk output.
Audio output on 1-window video monitoring.
Audio output on 1-window video playback.
PoE PORT
PoE port
Built-in switch. Supports PoE.
For PoE series products, you can use this port to
provide power to the network cameras.

9
2.3 Alarm Connection
2.3.1 Alarm Port
The alarm port is shown as below. See Figure 2-5. The following figure is based on the 78 series.
Figure 2-5
Icon
Function
1, 2
ALARM1, ALARM2. The alarm becomes activated in the
low level.
NO C
NO activation output. (On-off button).
＋12V
Rated current output. Current is 500mA.
GND
Note
Different models support different alarm input ports. Please refer to the specifications sheet for
detailed information.
Slight differences 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 1~2) of the NVR.
Connect the negative end (-) of the alarm input device to the ground end ( ) of the NVR.
Figure 2-6
Note
When connecting the ground port of the alarm device to the NVR, you can use any of the GND ports
().
When there is peripheral power supplying the alarm device, ensure it is grounded on the NVR.
+ Alarm -
Device

10
2.3.3 Alarm input and output port
There is peripheral power supplying to the external alarm device.
An overload may result in NVR damage. Please refer to the following relay specifications for detailed
information.
2.3.4 Alarm relay specifications
Model:
JRC-27F
Contact
Material
Silver
Rating
(Resistance
Load)
Rated switch capacity
30VDC 2A, 125VAC 1A
Maximum switch power
125VA 160W
Maximum switch voltage
250VAC, 220VDC
Maximum switch current
1A
Insulation
Between contacts with same
polarity
1000VAC 1minute
Between contacts with different
polarity
1000VAC 1minute
Between contacts and winding
1000VAC 1minute
Surge voltage
Between contacts with same
polarity
1500V (10×160us)
Length of open
time
3ms max
Length of close
time
3ms max
Longevity
Mechanical
50×106 MIN (3Hz)
Electrical
200×103 MIN (0.5Hz)
Temperature
-40ºC ~+70ºC
2.4 Bidirectional talk
2.4.1 Device-end to PC-end
Device Connection
Please connect a microphone to the first audio input port in the device rear panel. Then connect
headphones or spearkers to the audio output port on the PC.
Login to the Web and then enable the corresponding channel real-time monitor.
Please refer to the following interface to enable bidirectional talk. See Figure 2-7.
Figure 2-7
Listening Operation