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Table of Contents 

1

 

Overview ........................................................................................................................................... 1

 

1.1

 

NVR Model ......................................................................................................................... 1

 

1.2

 

KDM201S ........................................................................................................................... 2

 

1.3

 

Main Features ..................................................................................................................... 2

 

1.4

 

NVR Panels ........................................................................................................................ 5

 

1.4.1

 

NVR2820L Front Panel ................................................................................................ 5

 

1.4.2

 

NVR2820 Front Panel ................................................................................................. 5

 

1.4.3

 

NVR2820E Front Panel ............................................................................................... 6

 

1.4.4

 

NVR2860 Front Panel ................................................................................................. 6

 

1.4.5

 

NVR2820L Rear Panel ................................................................................................ 7

 

1.4.6

 

NVR2820 Rear Panel .................................................................................................. 7

 

1.4.7

 

NVR2820E Rear Panel ................................................................................................ 7

 

1.4.8

 

NVR2860 Rear Panel .................................................................................................. 8

 

1.5

 

KDM201S Panels ............................................................................................................... 8

 

1.5.1

 

KDM201S Front Panel ................................................................................................. 9

 

1.5.2

 

KDM201S Rear Panel ................................................................................................. 9

 

1.5.3

 

KDM201S-C04E Encoder module ............................................................................. 10

 

1.5.4

 

KDM201S-D04 Decoder module ............................................................................... 11

 

1.5.5

 

KDM201-D01H HD Decoder module ......................................................................... 11

 

1.5.6

 

Inserting a module ..................................................................................................... 12

 

2

 

NVR Installation Guide .................................................................................................................... 13

 

2.1

 

Working Environment ....................................................................................................... 13

 

2.2

 

Installation steps ............................................................................................................... 13

 

2.3

 

Necessary Device Components ........................................................................................ 14

 

2.4

 

Installing Built-in Hard disk ............................................................................................... 16

 

2.5

 

Configuration wizard ......................................................................................................... 20

 

2.5.1

 

NVR2820L ................................................................................................................. 20

 

2.5.2

 

Other NVR ................................................................................................................. 21

 

2.6

 

Configuring Video Source Device ..................................................................................... 22

 

2.7

 

Connecting Cables ........................................................................................................... 23

 

2.8

 

Verification ........................................................................................................................ 26

 

3

 

Network Configuration .................................................................................................................... 27

 

3.1

 

LAN Settings ..................................................................................................................... 27

 

Summary of Contents for NVR2820-16

Page 1: ...NVR Administrator Guide ...

Page 2: ...NVR User Manual NVR Quick Reference NVR2820L Quick Reference KDM201 D01H User Manual KDM201S Multi port Encoder Quick Reference Lithium battery safety A CR2032 Lithium battery is used in the NVR please confirm the type to avoid bombing when replaced Don t throw it into fire or garbage you should ask relative institutions for nearest recycle bin We try to insure the information is correct and the d...

Page 3: ...8 1 5 1 KDM201S Front Panel 9 1 5 2 KDM201S Rear Panel 9 1 5 3 KDM201S C04E Encoder module 10 1 5 4 KDM201S D04 Decoder module 11 1 5 5 KDM201 D01H HD Decoder module 11 1 5 6 Inserting a module 12 2 NVR Installation Guide 13 2 1 Working Environment 13 2 2 Installation steps 13 2 3 Necessary Device Components 14 2 4 Installing Built in Hard disk 16 2 5 Configuration wizard 20 2 5 1 NVR2820L 20 2 5 ...

Page 4: ... 3 2 Replace a Device 32 4 3 3 Device group 32 4 4 Parameter Settings 33 4 4 1 General 33 4 4 2 Audio ENC 33 4 4 3 Video ENC 33 4 4 4 Minor stream 34 4 4 5 Motion Detection 34 4 4 6 Image Shade 34 4 4 7 OSD 35 4 4 8 Camera 35 4 4 9 COM 35 4 4 10 Network Parameters 36 4 4 11 Dial up Settings validated after reset 36 4 4 12 Alarm Settings 36 4 5 NVR register to Surveillance Platform 37 5 Storage and...

Page 5: ...han Multicast 46 2 NAT Settings 47 2 1 NVR Station Located in NAT 47 2 2 NVR Located in NAT 47 2 2 1 NAT Settings of the LAN 48 2 2 2 NVR Settings 48 2 2 3 NVR Station Settings 48 2 3 NVR and Station Located in Different NAT 49 2 4 Camera and NVR Located in Different NAT 50 2 4 1 NAT Settings 50 2 4 2 NVR Settings 50 2 4 3 Camera DVS Settings 50 3 Settings of Proxy Server 51 4 Firewall 54 5 Techni...

Page 6: ...ssed either by camera or by IP Camera and it offers surveillance solutions as the same with NVR series The document describes NVR2820L NVR2820 NVR2820E NVR2860 and KDM201S with focus on the installation and configuration For other operations refer to the NVR User Manual 1 1 NVR Model The NVR models are quite different at appearance interface storage and video output For more details refer to Techn...

Page 7: ...illance system run by means of establishing a dedicated surveillance network or sharing with the service network and the NVR Station help control surveillance system through IP network The typical network application is as shown in following figure Figure 1 2 Typical Networking Live video view 1 multi screen live view at the same time 2 multiple layout schemes 3 camera sequence and layout scheme s...

Page 8: ...g NVR parameters 3 Video unit management adding deletion and parameter configuration 4 Version upgrade by NVR Station COM port and U disk Alarm 1 Trigger alarm by alarm input such as local alarm input video motion detection video loss and set the action to take including buzzer sound alarm output recording snapshot PTZ rotation to presets and caption 2 Alarm management management of surveillance p...

Page 9: ... and snapshot 6 A number of NVR management 16 at most 7 multi records replay synchronous of different NVR 8 TV wall configuration 9 Electric map function Security Perfect security solutions user password password attempt forbidden IP filtering user login encryption Register to a surveillance platform Register to KDM SP2 or KDM platform system Other 1 Support SDK 2 Support Onvif encode device ...

Page 10: ...Overview 5 1 4 NVR Panels 1 4 1 NVR2820L Front Panel Figure 1 3 Front Panel of NVR2820L 1 4 2 NVR2820 Front Panel Figure 1 4 Front Panel of NVR2820 ...

Page 11: ...ront Panel Figure 1 5 Front Panel of NVR2820E 1 4 4 NVR2860 Front Panel Figure 1 6 Front Panel of NVR2860 Notice The ALARM LED blinks according to the alarm settings Please refer to System Linkage in Chapter 5 of NVR User Manual ...

Page 12: ...l Figure 1 7 Rear Panel of NVR2820L 1 4 6 NVR2820 Rear Panel Figure 1 8 Rear Panel of NVR2820 1 4 7 NVR2820E Rear Panel NVR2820E rear panel is similar with NVR2820 the following show the differences Figure 1 9 Rear Panel of NVR2820E 9 16 ...

Page 13: ...ugh the TV interface Select PAL or NTSL from the configuration interface Figure 1 10 Rear Panel of NVR2820E 9D 16D 1 4 8 NVR2860 Rear Panel Figure 1 11 Rear Panel of NVR2860 1 5 KDM201S Panels KDM201S has eight boxes for hard disks in the front panel and with eight slots in the rear panel for inserting encoder or decoder panels ...

Page 14: ...ront Panel Figure 1 12 Front Panel of KDM201S 1 5 2 KDM201S Rear Panel Figure 1 13 Rear Panel of KDM201S If the VLAN dip is ON all the modules can managed by the NVR otherwise they could be done by other software in the network ...

Page 15: ... RCA audio out 4 4 RS485 5 1 alarm out switch 6 4 alarm in switch 7 running indicator Model KDM201S C04E Video Interface 4 BNC Video Encoder H 264 Resolution D1 CIF QCIF DUAL STREAM Frame Rate 1 25fps Bit Rate 64Kbps 2Mbps Audio In 4 RCA Audio Out 4 RCA Audio Protocol ADPCM Alarm In 4 SWITCH Alarm Out 1 SWITCH Control 4 RS485 ...

Page 16: ...1 2CIF CIF Frame Rate 1 25 fps Bit Rate 64Kbps 2Mbps Audio In 1 RCA Audio Out 1 RCA Audio Protocol G 711 ADPCM 1 5 5 KDM201 D01H HD Decoder module 1 DVI video out 2 BNC video out 3 3 5mm audio line out 4 3 5mm MIC audio out 5 RS232 6 USB 7 Reset 8 Decoding indicator Please configure the D01H parameters in Client IPCCtrl The detail parameters of D01H and the user manual of IPCCtrl please refer to K...

Page 17: ... take out the encoder or decoder module from the anti static package then check the name on the module to confirm it is coordinate with the label on the package Insert a module Push the module along the rail until it is blocked Fix the two screws besides the module Loosen the screws to take out the module Notice Avoid touching the circuit and other components on the module while inserting the modu...

Page 18: ...er 6 for details Temperature 0 60 Humidity 10 85 non condensing Altitude 60 5000m 2 2 Installation steps Following this flow to install the NVR surveillance system Step1 Preparation components Section 0 describes necessary components including compulsory and optional units Step 2 Install hard disk Install the hard disk to store records Step3 Connect cables Section 2 7 connect cables necessary Step...

Page 19: ...he surveillance system applicable to NVR2820 and NVR2860 Audio video cable Used for connecting audio video unit Network cable Used for connecting NVR and network Mouse USB mouse Green terminal Two 6 pin and one 2 pin terminals to connect peripheral device Power cable For connecting NVR and power supply SATA cable For connecting SATA hard disk CD Including Software and user manuals User manual NVR ...

Page 20: ... of camera and encoder adapter or IPC Surveillance keyboard Optional it can completely operate all functions Storage device Optional hard disk or USB disk array Rewriting device Optional USB DVD Rewriter USB HUB If multiple USB devices are to be connected at the same time the HUB can be used to expand the number of USB interfaces ZK 033 is recommended Audio device Optional audio in out device acou...

Page 21: ...pports one built in SATA hard disk Figure 2 1 Installing Hard disk for NVR2820L Notice If use the Seagate Barracuda LPTM 2TB hard disk before the above steps you need use the Jumper block the details as following Figure 2 2 Installing Jumper block in Hard disk for NVR2820L ...

Page 22: ...NVR Installation Guide 17 NVR2820 supports one built in IDE hard disk Figure 2 3 Installing Hard disk for NVR2820 ...

Page 23: ...NVR Installation Guide 18 The NVR2820E supports four or eight pieces of built in SATA hard disks The installing method of supported four disks Figure 2 4 Installing Hard disk for NVR2820E ...

Page 24: ...de 19 The installing method of NVR2820E which support eight disks is the same as above steps but the hard disk stand has two layer you need tighten the 3 screws which in the bottom stand the detail as the following figure ...

Page 25: ...nitial NVR configuration 2 5 1 NVR2820L According to the section 1 4 NVR Panels after all the cables connection NVR2820L will automatically start and it will automatically partition and format the built in hard disk at first As NVR2820L has no local display output its initial configuration need use IPCSearch which in the same LAN to configure Default Parameters IP Address 192 168 1 100 User Name a...

Page 26: ... system requirement of PC which run NVR Station please refer to Section 7 NVR Station 2 All the operation of NVR2820L need in the NVR Station the function of NVR Station please refer to NVR Station Help in this document we ll not repeat it 2 5 2 Other NVR Figure 2 6 Wiring of NVR2820 Wizard Configuration After finish connecting cables turn on the power and press the power switch power ON For first...

Page 27: ...you check the box NVR and video units are in the same LAN and the number of video points does not exceed 16 and there is only one NVR Thus you implement auto networking without adding camera manually For a dial up network or device placed in different LANs you shouldn t check it Refer to Chapter 3 for network configuration For a dial up network or NVR with the use of DDNS network information may n...

Page 28: ...NVR Installation Guide 23 2 7 Connecting Cables Figure 2 7 Connect NVR cables Figure 2 8 Connect KDM201S cables ...

Page 29: ...ect the blue VGA terminal on the rear panel to the display Connect the BNC connector on the rear panel to the monitor Acoustics Loudspeaker Connection Connect an acoustics or a speaker to the audio output connector Microphone Connection Connect the audio in device such as a microphone to an audio input interface USB Device Connection The NVR supports the following USB devices USB mouse USB DVD rew...

Page 30: ...eripheral alarm device to the NVR and the circuit diagram show the following DC power alarm in AC power alarm in The alarm output is a switch non voltage external power is necessary to the alarm device When the power is DC keep the voltage 12V see the previous left figure When the power is AC a relay is compulsive see the previous right figure Surveillance Keyboard Connection The surveillance keyb...

Page 31: ...RS485B to RS485B See the NVR User Manual for surveillance keyboard operating details 2 8 Verification Switch on the power supply and turn on the device to enter the Configuration Wizard interface refer to NVR Quick Reference for details The NVR outputs VGA by default When a TV set is connected press on your remote control to switch the output mode ...

Page 32: ...f the LAN be filled in as its first IP and the internet IP as the second one KDM201S have to configure two IP addresses Fill in the internet IP address as its first IP and the LAN IP address as the second one which is DHCP server IP address Subnet mask the subnet mask Default GW the gateway address DNS Server If the DDNS service is enabled for the NVR fill in the available DNS IP over the public n...

Page 33: ...case of network disconnection waiting time Waiting time for dial up each time Retry times The count of auto dial up tries when failure connection If the NVR accesses to the surveillance network in form of domain name over a PPPoE network the DDNS service must be enabled you need to set DDNS parameters 3 2 1 Dynamic Domain Name Server DDNS After proper setting of the PPPoE parameters enter the DDNS...

Page 34: ...ess pool 1 NVR2860 has two Ethernet cards calculate the IP according the first IP address and subnet addresses both of ETH0 and ETH1 1000M to build two LAN 2 To use DHCP server of NVR2860 need connect ETH1 1000M the way to use DHCP server of other NVR is the same as Notice 1 3 If the IP address of ETH0 or ETH1 and the default gateway are in the same LAN the default gateway will affect the ETH0 and...

Page 35: ...unction is enabled Make sure Devices using proxy are not filtered by the proxy server The proxy service is available The NVR uses Socks5 proxy Refer to the appendix for detailed proxy settings 3 6 Domain Name Service Settings The NVR supports access by domain name Two cases are involved When the NVR uses a fixed IP release the domain name and the user may access the NVR with the fixed IP or domain...

Page 36: ...uto networking please make sure that all devices involved are powered on and normally connected to the network 4 2 Add Video device If the number of surveillance sites exceeds 16 and two or more NVR are deployed over the surveillance network please take the manual networking mode 1 Select Main Menu Æ Devices or Wizard Æ Networking Æ Devices An interface appears Click related functional button to e...

Page 37: ...rations 1 Enter the interface for adding devices 2 Select the device from the devices list 3 Click Modify Address on the lower part of the interface 4 Enter the address of the registered surveillance platform again or directly register to the current NVR platform on the open interface 4 3 2 Replace a Device The internal devices can be replaced online instead of delete Replace device B with A Enter...

Page 38: ...er Description Device Name the device Device Type The model of the Device Alarm Inputs outputs Read only displaying the count of alarm inputs outputs of a device Alarm recovery time Alarm time after end of an alarm Version Read only displaying version information of a device 4 4 2 Audio ENC Parameter Description Audio Encoding Type Encoding standard used by audio encoder Audio Input Type Audio inp...

Page 39: ...h is the same source with the main stream but different resolution output to support displays Set the parameter according to the main video ENC as subsection 4 4 3 4 4 5 Motion Detection Parameter Description Enable motion detection If this check box is selected motion detection is enabled if not motion detection is disabled Detection sensitivity The higher the sensitivity the more sensitive to ch...

Page 40: ...de Click the shade area to withdraw then click save to take effect 4 4 7 OSD Parameter Description Enable Apply the current caption settings Caption Edit the caption on the video XY axis Set the position of caption on the video 4 4 8 Camera Parameter Description Camera type The type of cameras Camera address code Address code refer to the camera instructions for details Control COM COM No on the c...

Page 41: ...p Internet access Dial up username Username provided by the ISP Dial up password Dial up Internet access password provided by the ISP Auto dial up Set the auto dial up waiting time and retries this check box is recommended 4 4 12Alarm Settings Parameter Description Enable Alarm Caption If the caption is enabled the video show captions When alarm occurs Correlative Camera with alarm The camera corr...

Page 42: ...Enter into the Main Menu Settings access 4 Input the parameter registered Parameter Description Platform type Select the platform to register SP2 or 2800E platform Address The IP or domain name of the platform Platform port 5510 by default ask the administrator for details PUID The PUID dispatch by the platform NMS IP The network management server ask the administrator for details NMS Port 1727 by...

Page 43: ...ould not exceed 24 and the capacity of a single partition should be less than 300G 2 To access multiple USB devices a USB HUB is recommended such as ZK 033 5 1 Disk Management Disk Management Operation Method Partition Select a disk A menu appears Select Partition A built in hard disk has a maximum of four partitions The first partition of the first disk is 10GB by Automatic partition You can chan...

Page 44: ...ton below the Discover Target Portals to add an IP SAN IP and ports If CHAP is enabled in the IP SAN Server please enter the username and password 3 Check the status of target press the refresh button to get the latest status and also you can log off or log on the target 4 The connected status shows that the IP SAN is ok Notice The LUN should be set as 512byte when the IPSAN connect the NVR 5 4 RA...

Page 45: ...urned on in normal condition without alarm input and will not trigger alarm If an alarm occurs it is turned off to trigger alarm The NVR supports two alarm inputs Set the alarm input type as follows Select Main Menu Æ AlarmsÆ Alarm Input Select normal open or normal close on the pop up interface For detailed type refer to the operating instructions for the alarm device Notice if the alarm input in...

Page 46: ...or later IE6 Windows XP recommended Notice If a firewall is installed on your PC please set the NVR Station as trusted 7 1 Installation and Removal of Local Software Installation of Local Software Double click the setup file NVRSetup exe to start installation select language to install and click Next go on The installation is completed and a shortcut icon will be created on your desktop Removal of...

Page 47: ...NVR Station 42 7 3 Login Double click the icon on the desk and enter the username and passport in the popup interface The default username and password both are admin ...

Page 48: ... settings system settings and all user settings once every 24 hours By default the system will back up settings before shutdown If unexpected setting changes occur to the system you may conduct data restoration operation to recover them to previous settings or settings 24 hours ahead Select Main Menu Æ Settings Æ Restore Click Restore from the pop up menu to start data restoration 8 3 Software Upd...

Page 49: ...igure 8 1 Upload Update File In your PC select Start Æ ProgramsÆAccessoriesÆ CommunicationsÆ Hyperterminal Set the Name and COM1 of the connection and set COM parameters select 384000 for bits per second None for Flow Control select default settings for other options Click OK to enter the hyperterminal Reboot the NVR Press CTRL B to enter the boot mode Enter update filename enter the filename of t...

Page 50: ... Station 2 Select NVR from the surveillance list and select Version Update from the shortcut menu 3 Select the update package to update the NVR software version 4 Refer to related update section in Online Help of NVR Station for details ...

Page 51: ...rk configuration should be made first The connection method is as follows Install the software IPCCtrl on your PC refer to delivery attached CD for the software Run IPCCtrl and search device automatically Select the device in the list and log on by admin the default password is admin Click the Parameter interface Set the network parameters Set the register platform parameter ...

Page 52: ...e recording system enable the TCP ports in NAT 5510 1730 and 15510 2 1 NVR Station Located in NAT When the NVR Station is located in a LAN the LAN is configured with NAT and the NVR is located in a public network the NAT setting is completed automatically for the NVR Station to access the NVR so the user does not need to make setting 2 2 NVR Located in NAT When the NVR is located in the LAN the WA...

Page 53: ...VS mapping port Method for entering the interface Select Main Menu Æ Settings Æ Network Æ NAT as shown in the following figure 2 2 3 NVR Station Settings When an NVR Station in different NAT is connected to the NVR the IP address of the NAT must be used to replace that of the NVR The connection port keeps unchanged Method for entering the interface open and log on Select NVR Select Connection Prop...

Page 54: ...n Located in Different NAT When the NVR and Station are located in different LANs with the configuration of NAT the setting method is the same as that mentioned in Section 3 2 in the Appendix so no further description will be given here ...

Page 55: ...ocated in the NAT and furthermore in different NAT from the NVR port 11992 must also be mapped into the NVR 2 4 2 NVR Settings enter into the menu Main Menu Æ Settings Æ NetworkÆ NAT Parameters Set the NAT mapping port of NVR Station and DVS Set the mapping ports of the NVR to receive data from video port 12000 audio port 12002 and video2 port 12004 of each Camera in the NAT 2 4 3 Camera DVS Setti...

Page 56: ...on is enabled it agents the server Make sure that the devices using proxy are not filtered by the proxy server and the service is available The NVR uses Socks5 proxy This section takes the proxy service setting software used by the author as an example to describe how to set the proxy Appendix Figure 3 1 1 Select Permit Only for Permit Category 2 Select User Password for Auth Type 3 Click New to a...

Page 57: ...n to 1 that is no limitation on connections 6 Set Bandwidth to 1 that is no bandwidth limitation 7 Select the SOCKS check box 8 After setting click OK to exit It is recommended that the Web Filter check box be not selected If this check box is selected try not to filter the device using this proxy service as shown in Appendix Figure 3 3 Appendix Figure 3 3 ...

Page 58: ...tings of Proxy Server 53 If the device with an IP of 172 16 131 12 wants to use the proxy the Permitted Sites must include the network section or the Forbidden Sites should not include the network section ...

Page 59: ... NVR Station access NVR which in a firewall by 1730 and if modified in NVR network parameters open the port in the firewall NVR receive Station detection packets NAT MAP by 11988 and if modified in NVR NAT parameters open the port in the firewall Packets resend by port 51000 51203 if the network is stable the port is not compulsory If the NVR Station is located inside the firewall and other device...

Page 60: ...isk NVR2860 built in hard disk One SATA hard disks recommend Seagate 500G 750G 1T 1 5T and 2T External USB hard disk A maximum of 32 external USB hard disks or two disk arrays can be expanded recommend JL SU43 series HS410S Kedacom VS300 VS400 disk array Version update Software update Update NVR through U disk COM port or the NVR Station Video unit Update the video unit through the NVR Station Eve...

Page 61: ...ps adjustable Audio compression G 711 ADPCM Transport delay 300 ms Recording Pre Recording Maximum alarm pre recording time 30 s Storage policy Storage with built in hard disk or external USB hard disk or disk array Records replay 4 720P 4 D1 or 4 CIF channels Backup Backup Supported USB hard disk and USB DVD writer Download Download the records through the NVR Station Hard disk NVR2860 built in h...

Page 62: ...EEE802 3 RTP RTCP and VSIP Conventional parameters Operating voltage 100VAC 240VAC Placement Place on a table or mount on a bracket Horizontally Operating temperature 0ºC 50 ºC Relative Humidity 10 85 non condensing Operating Altitude 60 5000m 5 3 NVR2820E Audio video Video system Video PAL NTSC VGA NVR2820E 9D 16D supported 720P Video compression MPEG 4 H 264 Resolution Main stream 720P D1 CIF Mi...

Page 63: ...rrays are recommended Version update Software Update Update NVR through U disk COM port or the NVR Station Video unit Update the video unit through the NVR Station Event alarm Motion detection Supporting a maximum of 4 areas Alarm schedule A maximum of four periods every day Video source loss alarm Supported Device networking Network environment Supporting networks of different providers NAT trave...

Page 64: ...cords through the NVR Station Hard disk NVR2820 built in hard disk One IDE hard disk recommend Seagate 160G 320G 500G 750G 1T 1 5T and 2T External USB hard disk A maximum of 32 external USB hard disks or two disk arrays can be expanded JL SU43 series or HS410S disk arrays are recommended Version update Software Update Update NVR through U disk COM port or the NVR Station Video unit Update the vide...

Page 65: ...y Resolution Main stream D1 CIF 720P Only KDM201 D01H Minor stream QCIF CIF Frame rate 1 16 30 fps adjustable Code rate 64kbps 4Mbps adjustable Audio compression G 711 ADPCM Transport delay 300 ms Recording Pre Recording Maximum alarm pre recording time 30 s Storage policy Storage with built in hard disk or external USB hard disk or disk array Records replay KDM201 D01H 1 720P 2D1or 2CIF channels ...

Page 66: ...tation Event alarm Motion detection Supporting a maximum of 4 areas Alarm schedule A maximum of four periods every day Video source loss alarm Supported Device networking Network environment Supporting networks of different providers NAT traversal and Socks5 proxy Communication protocol DHCP PPPoE SNTP DDNS IEEE802 3 RTP RTCP and VSIP Conventional parameters Optional module KDM201S C04E KDM201S D0...

Page 67: ...otocol CIF Common Intermediate Format with a resolution of 352 288 PPPoE Point to Point Protocol over Ethernet PAL Phase Alternating Line a TV system China uses the PAL system NTSC A television system promulgated by the National Television Systems Committee which is adopted in the USA and some European countries VGA Video Graphics Array normally VGA is used for computer monitors PTZ Pan Tilt Zoom ...

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