APPENDIX A HDD CAPACITY CALCULATION ....................................... 224
APPENDIX B COMPATIBLE BACKUP DEVICES ................................ ....... 226
Appendix B-1 Compatible USB list .......................................................................................... 226
Appendix B-2 Compatible SD Card list ................................................................................... 227
Appendix B-3 Compatible Portable HDD list .......................................................................... 227
Appendix B-4 Compatible USB DVD List ............................................................................... 227
Appendix B-5 Compatible SATA DVD List .............................................................................. 227
HD AVS Standalone DVR User’s Manual
vi
Appendix B-6 Compatible SATA HDD List ............................................................................. 228
APPENDIX C COMPATIBLE CD/DVD BURNER LIST ............................. 232
APPENDIX D COMPATIBLE DISPLAYER LIST ....................................... 233
APPENDIX E COMPATIBLE SWITCHER ................................................... 234
APPENDIX F COMPATIBLE WIRELESS MOUSE LIST ........................... 235
APPENDIX G EARTHING ................................ ......................................... 236
APPENDIX H TOXIC OR HAZARDOUS MATERIALS OR ELEMENTS ...... 242
HD AVS Standalone DVR User’s Manual
vii
Welcome
Thank you for purchasing our DVR!
This user’s manual is designed to be a reference tool for the installation and operation of
your system.
Here you can find information about this series standalone DVR features and functions.
Before installation and operation please read the following safeguards and warnings
carefully!
HD AVS Standalone DVR User’s Manual
viii
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. Handle with care.
Do not apply power to the DVR before completing installation.
Do not place objects on the DVR.
4.Qualified engineers needed
All the examination and repair work should be done by the qualified service engineers.
We are not liable for any problems caused by unauthorized modifications or attempted
repair.
5.Environment
The DVR should be installed in a cool, dry place away from direct sunlight, inflammable,
explosive substances and etc.
6. Accessories
Be sure to use all the accessories recommended by manufacturer.
Before installation, please open the package and check all the components are included.
Contact your local retailer ASAP if something is broken in your package.
7. Lithium battery
Improper battery use may result in fire, explosion, or personal injury!
When replace the battery, please make sure you are using the same model!
HD AVS Standalone DVR User’s Manual
1
1 FEATURES AND SPECIFICATIONS
1.1 Overview
The standalone series DVR is an excellent digital monitor product designed for security
field.
It adopts embedded Linux OS to maintain reliable operation. Popular H.264 compression
algorithm and G.711 audio compression technology realize high quality, low bit stream.
Unique frame by frame play function is suitable for detailed analysis. It has various
functions such as record, playback, monitor at the same time and can guarantee audio
video synchronization. This series product has advanced technology and strong network
data transmission function.
This series device adopts embedded design to achieve high security and reliability. It can
work in the local end, and at the same time, when connecting it to the professional
surveillance software (PSS), it can connect to the security network to realize strong
network and remote monitor function.
This series product can be widely used in various areas such as banking,
telecommunication, electric power, interrogation, transportation, intelligent resident zone,
factory, warehouse, resources, and water conservancy.
1.2 Features
This series product has the following features:
Real-time surveillance
Support VGA port and HDMI port. Realize the surveillance through displayer. Support
HDMI, VGA, and TV output at the same time.
Storage function
Special data format to guarantee data security and can remove the risk of the vicious data
modification. Support digital watermark.
Compression format
Support multiple-channel audio and video. An independent hardware decodes the audio
and video signal from each channel to maintain video and audio synchronization.
Backup function
Support backup operation via USB port (such as U disk, portable HDD, burner)
Client-end user can download the file to local HDD to backup via network.
Record & playback function
HD AVS Standalone DVR User’s Manual
2
Parameter
AVR-804S
AVR-808S
AVR-816S
System
Main Processor
High-performance industrial embedded micro controller
OS
Embedded LINUX
System
Resources
Multiplex operations: Multiple-channel record, multiple-channel
playback and network operation simultaneously
Interface
User-friendly graphical user interface
Input Devices
USB mouse
Input Method
Arabic number, English character, donation and extension Chinese
(optional)
Support each channel real-time record independently, and at the same time it can support
search, forward play, network monitor, record search, download and etc.
Support various playback modes: slow play, fast play, backward play and frame by frame
play.
Support time title overlay so that you can view event accurate occurred time
Support customized zoom function during the preview.
Network operation
Support network remote real-time monitor, remote record search and remote PTZ control.
Alarm activation function
Several relay alarm outputs to realize alarm activation and on-site light control.
The alarm input port and output has the protection circuit to guarantee device safety.
Communication port
RS485 port can realize alarm input and PTZ control.
RS232 port can connect to keyboard to realize central control, and can also connect to PC
COM to upgrade system and realize maintenance, and matrix control.
Standard Ethernet port can realize network access function.
The dual-network port has the multiple-access, fault-tolerance, load-balance setup mode.
PTZ control
Support PTZ decoder via RS485.
Intelligent operation
Mouse operation function
In the menu, support copy and paste setup function
UPNP (Universal Plug and Play)
Establish mapping connection between LAN and WAN via UPNP protocol.
Slight function differences may be found due to different series.
1.3Specifications
3
Shortcut
Function
Copy/paste operation, USB mouse right-key shortcut menu, double
click USB mouse to switch screen.
Compression
Standard
Video
Compression
H.264
Audio
Compression
G711A, G711U, PCM
Video monitor
Video Input
4-CH composite
video input:
(NTSC/PAL) BNC
(1.0VBP- P, B75Ω)
8-CH composite video
input: (NTSC/PAL)
BNC (1.0VBP- P,
B75Ω)
16-CH composite
video input:
(NTSC/PAL) BNC
(1.0VBP- P, B75Ω)
IP Channel
The default IP
channel amount
is 0. Support to
expand to 4 IP
channels.
The analog
channel can
become the IP
channel via the
A/D switch
function.
Max supports 8
IP channels.
Connection
bandwidth is
160Mbps.
The default IP
channel amount
is 0. Support to
expand to 8 IP
channels.
The analog
channel can
become the IP
channel via the
A/D switch
function.
Max supports 16
IP channels.
Connection
bandwidth is
160Mbps.
The default IP
channel amount
is 0. Support to
expand to 16 IP
channels.
The analog
channel can
become the IP
channel via the
A/D switch
function.
Max supports 32
IP channels.
Connection
bandwidth is
160Mbps.
Video Output
1-ch PAL/NTSC, BNC (1.0VP- P, 75Ω) composite video signal output.
1-ch VGA output.
2-ch HDMI output. HDMI port1 has the same video source as the VGA
and TV. HDMI port2 is the HD aux output of the analog channel.
1-ch video matrix output.
Support TV/VGA/HDMI1/HDMI2 video output at the same time.
1 to 120 minutes single record duration (Default setup is 60 minutes)
HD AVS Standalone DVR User’s Manual
5
Playback
Repeat Way
When hard disk is full, system can overwrite previous video file.
Record Search
Various search engines such as time, type and channel.
Playback Mode
Various fast play, slow play speeds, manual frame by frame playback
and reverse play mode.
Various File
Switch Ways
Can switch to previous or next file or any file in current play list.
Can switch to file on other channel of the same time. (If there is a file)
Support file continuous play, when file is end system auto plays the
next file in the current channel
Playback Way
Support mark playback
Multi-channel
Playback
Support 1/4-channel
modes
Support
1/4/8-channel modes
Support
1/4/8/16-channel
modes
Window
Zoom
Switch between self-adaptive screen/full screen when playback
Partial
Enlargement
When in one-window full-screen playback mode, you can select any
zone to activate partial enlargement function.
Backup
function
Backup Mode
HDD backup
Support peripheral USB backup device. (Flash disk, portable disk,
USB burner and etc.)
Support external eSATA device backup
Support network download and backup
Network
Function
Network control
View monitor channel remotely.
DVR configuration through client-end and web browser
Upgrade via client or browser to realize remote maintenance.
View alarm information such as external alarm, motion detection and
video loss via client.
Support network PTZ lens control
File download backup and playback
Multiple devices share information via corresponding software such as
professional surveillance software (PSS)
Duplex transparent COM
Network alarm input and output
Zero-channel encoding
Bidirectional audio.
Motion
Detection and
Alarm
Motion
Detection
Zone setup: support 396((PAL 22×18, NTSC 22×15)) detection zones.
Various sensitivity levels.
Alarm can activate record or external alarm or screen message
prompt.
Video Loss
Alarm can activate external alarm or screen message prompt.
HD AVS Standalone DVR User’s Manual
6
External Alarm
Support record activation function or activate external alarm or screen
message in specified period.
Manual Alarm
Control
Enable or disable alarm input channel
Simulate alarm signal to specific alarm output channel.
Alarm Input
4-ch alarm input
(NO/NC)
8-ch alarm input(NO/NC)
16-ch alarm input
(NO/NC)
Alarm Output
6-channel relay output. (Including one controllable DC 12V output)
1 RS485 port. PTZ control port
Support various PTZ control protocols.
RS232
1 RS232 port. Ordinary COM (Debug),keyboard connection and
transparent serial port(COM input and output via network )
RS422
1 RS422 port
System
Information
Hard Disk
Information
Display HDD current status
Data Stream
Statistics
Data stream statistics for each channel (in wave mode)
Log statistics
Backup to 1024 log files.
Support various search engines such as time and type.
Version
Display version information: channel amount, alarm input and output
amount, system version and release date.
On-line user
Display current on-line user
User
Management
User
Management
Multi-lever user management; various management modes
Integrated management for local user, serial port user and network
user.
Configurable user power.
Support user /group and its corresponding rights modification.
No limit to the user or group amount.
Password
Authentication
Password modification
Administrator can modify other user’s password.
Account lock strategy
Five times login failure in thirty minutes may result in account lock.
Upgrade
Web browser, client-end and update tool.
Login, Logout and Shutdown
Password login protection to guarantee safety
User-friendly interface when login. Provide the following options:
Logout /shutdown/ restart.
Right authentication when shut down to make sure only those proper
people can turn off DVR
HD AVS Standalone DVR User’s Manual
7
General
Parameter
Power
AC90~264V 50+2% Hz (For 4-channel series product: max 75W. For
8-channel series product: max 75W power. For 16-channel series
product: max 150W)
Power
Consumption
≤44W (With adapter, exclude HDD)
Working
Temperature
-10℃-+55℃
Working
Humidity
10%-90%
Air Pressure
86kpa-106kpa
Dimension
2U standard industrial case. 440(W) x460(D) x89(H)mm
Weight
7.0-8.0KG (Exclude HDD)
Installation
Mode
Desktop/Rack installation
HD AVS Standalone DVR User’s Manual
8
SN
Icon
Name
Function
1
GND
Ground port
2 Power socket
Power input port
3
Power switch
Power on/off button.
4
AUDIO IN
Audio input port
Connect to microphone and
etc to input audio signal.
2 Overview and Controls
This section provides information about front panel and rear panel. When you install this
series DVR for the first time, please refer to this part first.
2.1 Front Panel
The front panel is shown as in Figure 2-1. There is only one USB port on the front panel.
Figure 2-1
2.2Rear Panel
2.2.1 AVR-804S/ AVR-808S Series
This series products’ rear panel is shown as below. See Figure 2-2.
Figure 2-2
Please refer to the following sheet for detailed information.
HD AVS Standalone DVR User’s Manual
9
SN
Icon
Name
Function
5
VIDEO IN
Video input port
Connect to analog camera to
input video signal.
6
MIC IN
Bidirectional talk input
port
Input bidirectioanl talk analog
signal from microphone, pick
up.
7
MIC OUT
Bidirectional talk output
port
Output bidirectional talk
analog signal to sound box
and etc.
Bidirectional talk output.
Audio output of
single-window monitor
mode.
Audio output of
single-window playback
mode.
8
AUDIO OUT
Audio output port
Connect to sound box and
etc to output audio signal.
9
VIDEO OUT
Video output port
Connect to output devices
such as TV.
10
Network port
1000M Ethernet port
11
1~16
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 port9 to
port 12, the fourth group
is from port13 to port 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.
HD AVS Standalone DVR User’s Manual
10
SN
Icon
Name
Function
NO1~NO5
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. 4:port NO4~
C4. 5:port NO5 ~
C5.).Output alarm signal
to the alarm device.
Please make sure there
is power to the external
alarm device.
NO:Normal open alarm
output port.
NC:Normal close alarm
output port.
C:Alarm output public
end.
C1~C5
NC5
A
RS485 communication
port
RS485_A port. It is the cable
A. You can connect to the
control devices such as
speed dome PTZ.
B
RS485_B.It is the cable B.
You can connect to the
control devices such as
speed dome PTZ.
T+、T-、R+、R-
Four-cable full-duplex
485 port.
T+, T-: Send out cable.
R+, R-: Input cable.
CTRL 12V
Control power output
Turn off power output when
the alarm is cancelled.
12
RS232
RS232
RS232 debug port
13
VGA
VGA video output port
VGA video output port.
Output analog video signal. It
can connect to the monitor to
view analog video.
14
HDMI1
High definition media
interface 1
High definition audio and
video signal output port. It
transmits the same video
signal as the VGA/TV.
Support mouse operation.
15
HDMI2
High definition media
interface 2
HD video matrix output.
Support zero-channel
encoding matrix output.
HD AVS Standalone DVR User’s Manual
11
SN
Icon
Name
Function
Support tour.
16
eSATA
eSATA port
External SATA port. It can
connect to the device of the
SATA port.
17
USB2.0 port
Connect to mouse, USB
storage media, USB-burner
and etc.
SN
Icon
Name
Function
1
VIDEO OUT
Video output port
Connect to output devices
such as TV.
2
AUDIO OUT
Audio output port
Connect to sound box and
etc to output audio signal.
3
MIC IN
Bidirectional talk input
port
Input bidirectioanl talk analog
signal from microphone, pick
up.
4
MIC OUT
Bidirectional talk output
port
Output bidirectional talk
anaglo signal to sound box
and etc.
Bidirectional talk output.
Audio output of
single-window monitor
mode.
Audio output of
single-window playback
mode.
5
AUDIO IN
Audio input port
Connect to microphone and
etc to input audio signal.
2.2.2 AVR-816S Series
The AVR-816S series products’ rear panel is shown as below. See Figure 2-3.
Figure 2-3
Please refer to the following sheet for detailed information.
HD AVS Standalone DVR User’s Manual
12
SN
Icon
Name
Function
6
VIDEO IN
VIDEO IN
Video input port
7
1~16
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 port9 to
port 12, the fourth group
is from port13 to port 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.
NO1~NO5
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. 4:port NO4~
C4. 5:port NO5 ~
C5.).Output alarm signal
to the alarm device.
Please make sure there
is power to the external
alarm device.
NO:Normal open alarm
output port.
NC:Normal close alarm
output port.
C:Alarm output public
end.
C1~C5
NC5
A
RS-485 communication
port
RS485_A port. It is the cable
A. You can connect to the
control devices such as
speed dome PTZ.
HD AVS Standalone DVR User’s Manual
13
SN
Icon
Name
Function
B
RS485_B.It is the cable B.
You can connect to the
control devices such as
speed dome PTZ.
T+、T-、R+、R-
Four-cable full-duplex
485 port.
T+, T-: Send out cable.
R+, R-: Input cable.
CTRL 12V
Control power output
Turn off power output when
the alarm is cancelled.
8
VGA
VGA video output port
VGA video output port.
Output analog video signal. It
can connect to the monitor to
view analog video.
9
RS-232
RS232 debug port
It is for general COM debug
to configure IP address or
transfer transparent COM
data.
10
USB2.0 port
Connect to mouse, USB
storage media, USB-burner
and etc.
11
Network port
1000M Ethernet port
12
eSATA
eSATA port
External SATA port. It can
connect to the device of the
SATA port.
13
HDMI2
High definition media
interface 2
HD video matrix output.
Support zero-channel
encoding matrix output.
Support tour.
14
HDMI1
High definition media
interface 1
High definition audio and
video signal output port. It
transmits the same video
signal as the VGA/TV.
Support mouse operation.
15
Power socket/power
switch button
Power input port and power
on-off button
16
GND
Ground port
When connect the Ethernet port, please use crossover cable to connect the PC and use
the straight cable to connect to the switch or router.
2.3 Connection Sample
HD AVS Standalone DVR User’s Manual
14
Please refer to the following figure for detailed information. See Figure 2-4.
Figure 2-4
2.4 Remote Control
The remote control interface is shown as in Figure 2-5.
Please note remote control is not our standard accessory and it is not included in the
accessory bag.
HD AVS Standalone DVR User’s Manual
15
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 and
normal speed playback.
4
Slow play
Multiple slow play speeds or
normal playback.
5 Next record
In playback mode, playback the
next video.
6 Previous record
In playback mode, playback the
previous video.
7
Play/Pause
In pause mode, click this button
to realize normal playback.
In normal playback click this
button to pause playback.
In real-time monitor mode, click
this button to enter video search
menu.
Reverse/pause
Reverse playback pause mode,
Figure 2-5
HD AVS Standalone DVR User’s Manual
16
8
click this button to realize normal
playback.
In reverse playback click this
button to pause playback.
9 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.
Aux function(such as switch the
PTZ menu)
12
Enter /menu key
go to default button
go to the menu
13
Multiple-window switch
Switch between multiple-window
and one-window.
14
Fn
In 1-ch monitor mode: pop up
assistant function: PTZ control
and Video color.
Switch the PTZ control menu in
PTZ control interface.
In motion detection interface,
working with direction keys to
complete setup.
In text mode, click it to delete
character.
15
0-9 number key
Input password, channel or
switch channel.
Shift is the button to switch the
input method.
Left click
mouse
System pops up password input dialogue box if you have not logged in.
In real-time monitor mode, you can go to the main menu.
2.5 Mouse Control
HD AVS Standalone DVR User’s Manual
17
When you have selected one menu item, left click mouse to view menu
content.
Implement the control operation.
Modify checkbox or motion detection status.
Click combo box to pop up drop down list
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 ← stands for
deleting the previous numeral.
When input special sign, you can click corresponding numeral in the
front panel to input. For example, click numeral 1 you can input“/” , or
you can click the numeral in the on-screen keyboard directly.
Double left
click mouse
Implement special control operation such as double click one item in
the file list to playback the video.
In multiple-window mode, double left click one channel to view in
full-window.
Double left click current video again to go back to previous
multiple-window mode.
HD AVS Standalone DVR User’s Manual
18
Right click
mouse
In real-time monitor mode, pops up shortcut menu: one-window,
four-window, nine-window and sixteen-window, Pan/Tilt/Zoom, color
setting, search, record, alarm input, alarm output, main menu.
Among which, Pan/Tilt/Zoom and color setting applies for current
selected channel.
If you are in multiple-window mode, system automatically switches to
the corresponding channel.
Exit current menu without saving the modification.
Press
middle
button
In numeral input box: Increase or decrease numeral value.
Switch the items in the check box.
Page up or page down
Move
mouse
Select current control or move control
Drag
mouse
Select motion detection zone
Select privacy mask zone.
2.6Virtual Keyboard & Front Panel
2.6.1 Virtual Keyboard
The system supports two input methods: numeral input and English character (small and
capitalized) input.
Move the cursor to the text column, the text is shown as blue, input button pops up on the
right. Click that button to switch between numeral input and English input (capitalized and
small), Use > or < to shift between small character and capitalized character.
2.6.2 Front Panel
Move the cursor to the text column. Click Fn key and use direction keys to select number
you wanted. Please click enter button to input.
HD AVS Standalone DVR User’s Manual
19
2. Remove the HDD upper bracket
3. Now you can see the bottom bracket
5. Use screws to fix HDD.
6. Install the upper bracket and then Use
screws to fix HDD in the bracket.
1. Loosen the screws of the
upper cover.
4. Line up the HDD to the four
holes of the HDD bracket.
3Installation and Connections
Note: All the installation and operations here should conform to your local electric
safety rules.
3.1Check Unpacked DVR
When you receive the DVR from the forwarding agent, please check whether there is any
visible damage. The protective materials used for the package of the DVR 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. Finally you can remove the protective
film of the DVR.
Note
Remote control is not a standard accessory and it is not included in the accessory bag.
3.2 About Front Panel and Rear Panel
The model in the front panel is very important; please check according to your purchase
order.
The label in the rear panel is very important too. Usually we need you to represent the
serial number when we provide the service after sales.
3.2.1 HDD Installation
This series DVR has 1 to 8 HDDs (no limitation for capacity). Please use HDD of 7200rpm
or higher. Usually we do not recommend the HDD for the PC. You can refer to the
Appendix for recommended HDD brand.
All figures listed here for reference only.
Please follow the instructions listed below to install hard disk.
This series DVR max supports 8 SATA HDDs. Please use HDD of 7200rpm or higher.
HD AVS Standalone DVR User’s Manual
20
7. Unfasten the HDD power
cable.
9. Use the special data cable to
connect the HDD and the SATA
port. Close the chassis and fix
the screws to secure firmly.
8. Insert the HDD power
cable.
Important:
If the HDD amount is less than four, you do not need to install the HDD bracket.
When there is a bracket, please make sure the installation direction of HDDs is the same.
3.2.2 Rack Installation
Use twelve screws to fix the unit
Please make sure the indoor temperature is below 35℃ (95°f).
Please make sure there is 15cm (6 inches) space around the device to guarantee
sound ventilation.
Please install from the bottom to the top.
If there are more accessories connected in the rack, please take precaution
measures in case the rack power is overload.
3.3 Connecting Power Supply
Please check input voltage and device power button match or not.
We recommend you use UPS to guarantee steady operation, DVR life span, and other
peripheral equipments operation such as cameras.
3.4Connecting Video Input and Output Devices
3.4.1 Connecting Video Input
The video input interface is BNC. The input video format includes: PAL/NTSC BNC
(1.0VB
The input video format: BNC(0.8VP-P,75Ω).
The video signal should comply with your national standards.
The input video signal shall have high SNR, low distortion; low interference, natural color
and suitable lightness.
Guarantee the stability and reliability of the camera signal:
The camera shall be installed in a cool, dry place away from direct sunlight, inflammable,
explosive substances and etc.
The camera and the DVR should have the same grounding to ensure the normal
P- P ,
B75Ω.).
HD AVS Standalone DVR User’s Manual
21
operation of the camera.
Guarantee stability and reliability of the transmission lineBTTTB
Please use high quality, sound shielded BNC. Please select suitable BNC model
according to the transmission distance.
If the distance is too long, you should use twisted pair cable, and you can add video
compensation devices or use optical fiber to ensure video quality.
You should keep the video signal away from the strong electromagnetic interference,
especially the high tension current.
Keep connection lugs in well contactBTTTB
The signal line and shielded wire should be fixed firmly and in well connection. Avoid dry
joint, lap welding and oxidation.BTTT
3.4.2 Connecting Video Output
Video output includes a TBNC(PAL/NTSC, 1.0VP- P,75Ω)output, a VGA output and a
HDMI output.
System supports BNC, VGA and HDMI output at the same time.
When you are using pc-type monitor to replace the monitor, please pay attention to the
following points:
To defer aging, do not allow the pc monitor to run for a long time.
Regular demagnetization will keep device maintain proper status.
Keep it away from strong electromagnetic interference devices.
Using TV as video output device is not a reliable substitution method. You also need to
reduce the working hour and control the interference from power supply and other devices.
The low quality TV may result in device damage.
BNC port is adopted for audio input port.
Due to high impedance of audio input, please use active sound pick-up.
Audio transmission is similar to video transmission. Try to avoid interference, dry joint,
loose contact and it shall be away from high tension current.
3.5.2 Audio Output
The audio output signal parameter is usually over 200mv 1KΩ (BNC). It can directly
connect to low impedance earphone, active sound box or amplifier-drive audio output
device.
If the sound box and the pick-up cannot be separated spatially, it is easy to arouse
squeaking. In this case you can adopt the following measures:
Use better sound pick-up with better directing property.
Reduce the volume of the sound box.
Using more sound-absorbing materials in decoration can reduce voice echo and
improve acoustics environment.
Adjust the layout to reduce happening of the squeaking.
3.6 Alarm Input and Output Connection
Please read the followings before connecting.
Loading...
+ 221 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.