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How many languages can Longse recorder support?
    
If none of these resolve the issue please write us at Online Support
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What is the RTSP address of Longse recorder? How to use it?
Take this address for example,



So the RTSP address of channel 13 sub-stream is
rtsp://admin:1@183.233.190.41:8950/121
 
the RTSP address of channel 2 main-stream is
rtsp://admin:1@183.233.190.41:8950/10
If none of these resolve the issue please write us at Online Support
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How to upgrade the firmware of recorder?
There are four ways to upgrade.
1. Use the IP Search Tool to upgrade in PC
2. Upgrade from the webpage after log in via IE
3. Use USB flash disk to upgrade manually or automatically
4. Automatic online update
If none of these resolve the issue please write us at Online Support
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How many brands of DDNS can Longse recorder support?
Including ORAY, NO-IP, DYN, CHANGEIP, A-PRESS, MYQSEE, SKDDNS and SMART-EYES.
If none of these resolve the issue please write us at Online Support
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How many users can Longse recorder support to log in simultaneously?
In the LAN net, Longse recorder can support 5 users log in simultaneously. Only 2 of 5 users can preview via the main-stream and the other 3 users can preview via sub-stream. 
In the WAN net, it is decided by the network situation. Here we can not list out the specific number of users. 
It is the same as above if log in by mobile APP via P2P.
If none of these resolve the issue please write us at Online Support
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How to access the recorder via IE?
All Longse recorders, including HVR, XVR and NVR, support log in via browsers based on IE under Windows System 
(Apple MAC System not support), such as Firefox, Google (Ver. 45 below).

Step 1. Connect the recorder into LAN net, amend the IP address, use IP Search Tool to search the recorder and then click the one you choose.
Step 2. Download the OCX control from the pop-ups, install, refresh and then you can see the login interface.
Step 3. Input the user name admin and password 12345 to log in the recorder.
Step 4. Please change the password immediately after you using the default password to log in.


If none of these resolve the issue please write us at Online Support
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What can I do if the recorder can not record?
1. Check the hard disk
Step 1. Please check if the hard disk can be detected and its status is regular. 
Step 2. If Step 1 is OK, please format the hard disk and check if the equipment is normal working.
Step 3. If Step 2 is not working, please change another hard disk and try again Step 1&2.
 
2. Check the configuration
Please check if the recording planning is set correctly for every channel. 
If none of these resolve the issue please write us at Online Support
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What can I do if the recorder can not start or reboot all the time?
1. Power limited: change a higher input power supplier (e.g. change 2A to 3A)
2. HDD not compatible: uninstall the HDD to check if the recorder can start or stop rebooting
3. The firmware bug: use automatic upgrade program or contact with Longse via support@longse.com 
to get the new firmware for repairing the bug 
4. Otherwise, send back for repairing if the above solutions are not available
If none of these resolve the issue please write us at Online Support
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What can I do if no video after connecting camera with recorder?
1. Check the power supplier: enough power input is required
2. Check BNC cable between camera and recorder: tight connection and good quality are required
3. Check the TV system (e.g. PAL system for camera and recorder both)
4. Check if the camera is high definition (e.g. AHD) but the recorder is normal analog (e.g. 960H DVR)
5. Check if the recorder is high definition (e.g. XVR) but the camera is normal analog (e.g. 720TVL)

Note: The camera should match with the recorder. 
For example, AHD camera matches with AHDVR, CVI camera matches with CVR, TVI camera matches with TVR.
4IN1 HD camera can match with any of above recorders 
because its output signal can be switched according to the recorder you apply. 
If none of these resolve the issue please write us at Online Support
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How to set the time in the network IP camera?
1. Manual modification
2. Synchronize with the local computer time
3. NTP network time
4. Synchronize with the NVR time
If none of these resolve the issue please write us at Online Support
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What should I do if forget the network IP camera password?
1. Reset the password by the security questions
2. Reset by sending the password verification mail to the security authentication mailbox
3. Hard reset to default by pressing the hard reset button in the camera cable or on camera main board
If none of these resolve the issue please write us at Online Support
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How many languages can Longse network IP camera support?
Supports 22 languages, including:

English, French, Hungarian, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, German, Polish, 
Turkish, Romanian, Finnish, Korean, Persian, Thai, Greek , Vietnamese, Hebrew, Arabic
If none of these resolve the issue please write us at Online Support
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Why delay, stumble or blurred screen for network IP camera?
It may be caused by:

1. the poor quality of switch or hub
2. too many switches or hubs connected between the monitor and the IP camera
If none of these resolve the issue please write us at Online Support
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Why network IP camera can not connect with Cloud Server?
It may be caused by:

1. network congestion or too many visitors 
2. error in device serial number, user name or password
3. device offline (please check if the device is connected with the public net in P2P conif)
4. incorrect network setting, especially the DNS setting (Recommended DNS setting is 8.8.8.8)  
If none of these resolve the issue please write us at Online Support
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How to choose lens for different environment?
FocusViewing RangeViewing Angle 
(With 1/3” sensor)
Viewing Angle  
(With 1/4” sensor)
Difference
3.6mm5m85º73º12º
4mm
 
5m indoor,
10m outdoor
80º67º13º
6mm15m outdoor68º56º12º
8mm20m~30m45º35º10º
12mm35m~40m35º25º10º
16mm≦50m30º20º10º

If none of these resolve the issue please write us at Online Support
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How to calculate the recording space occupation?

Hard Disk Capability= (Bit Stream/8*Time)

 
FormatVideo flowOne dayOne weekOne month
1080P1-8M/s10.5G-84.4G73.5G-590.8G315G-2.5T
720P1-4M/s10.5G-42.2G73.5G-295.4G315G-1.24T
D10.5-2.5M/s5.3G-36.4G37.1G-254.8G159G-1092G
CIF0.18-1M/s540M-10.5G3.7G-73.5G111G-315G

CIF      64kbps-1024kbps          
D1      512kbps-2560kbps
720P    1024kbps-4096kbps        
1080P  1024kbps-8192kbps

The maximum capability of one set PC storage server:12*1.5TB=18TB
SATAII R&W speed: 40MB~60MB

If do not consider the hard disk capability, the server can hold up (40*8/2)=160CH 2Mb/s IP cameras to read and write simultaneously.
If none of these resolve the issue please write us at Online Support
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What should I know before connecting the network IP camera with NVR?
Longse network IP camera supports ONVIF 2.4 and ONVIF Profile S Protocol. 
It is compatible with any brand NVR which supports ONVIF 2.4 or ONVIF Profile S. 
When connecting IP camera to the NVR, please check twice the ONVIF port (Default 8999) and the user name & password.
 
Note: Now the default setting of Longse Ambarella solution AL200 is 80 for ONVIF port, RTSP port and HTTP port.
If none of these resolve the issue please write us at Online Support
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Why can not access the network IP camera via IE?
It may be caused by:

1. wrong IP address
2. do not install the ActiveX controls
3. the IE security settings do not open and allow ActiveX controls to run
4. the firewall of PC blocks the ActiveX controls to run
5. wrong user name and password for login
If none of these resolve the issue please write us at Online Support
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What is the advantage of network surveillance system?
1. High definition: several times or even dozens of times clearer than the traditional analog monitoring system

2. Integratability: can integrate various kinds of functions in the system easily, such as audio, alarm, remote control, intelligent analysis and other technologies

3. Save cost and labor: transmitted in the network, can reduce the dosage of wire and then save manpower

4. Easy installation and use

5. Convenient maintenance

6. Extendibility

7. Centralized management 

As the above unparalleled advantages, we believe that the network surveillance system is the future for video surveillance field, and it is also the focus direction of Longse R&D.
If none of these resolve the issue please write us at Online Support
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Is the network IP camera compatible with general switch?
Yes. IP camera transmission media is the network. 
As long as the bandwidth of switch meets the requirements for transmission, any brand of switch is compatible.
If none of these resolve the issue please write us at Online Support
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What is the transmission distance of network IP Camera?
The recommended transmitting distance is 100 meters if directly through network cable. 
If longer distance is required, you can use switch for extension. 
One switch can extend 100 meters, mostly 3 switches for 300 meters extension can be adopted. 
Longer than 300 meters can use network extender or through fiber cable for transmission.
If none of these resolve the issue please write us at Online Support
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How much space does network IP camera video file occupy?
The the bit rate of network IP camera can be adjusted. It means the video file for recording also can be adjusted.
 
Take the CIF video compressed by MPEG4 format for example. Its biggest bit rate is 400Kbps (“b” is bit here). 

One second it needs: 400/8=50KBps (“B” is byte here. Hard disk storage is calculated by Byte)

One minute it needs: 50KBpsx60s=3000KByte=3MByte

One hour it needs: 3MBytex60m=180MByte

One day it needs: 180MBytex24h=4320MByte=4.22GByte (1G=1024M)
If none of these resolve the issue please write us at Online Support
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Does network IP camera support mobile phone viewing?
Yes. Longse network IP camera supports mobile phone with iOS or Android operating system, but do not supports Windows and Blackberry operating system.
If none of these resolve the issue please write us at Online Support
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How to use RTSP stream to view network IP camera?
If the network IP camera support RTSP stream, its address is written as below:
 
rtsp://user name:password@ip address:rtsp prot/0  main stream
rtsp://user name:password@ip address:rtsp prot/1  sub stream
rtsp://user name:password@ip address:rtsp prot/2  third stream
 
For example:
rtsp://admin:admin@192.168.1.90:554/1
 
From the above address you can get,
 
The username for login is admin
The password for login is admin
The RTSP port default setting is 554
If none of these resolve the issue please write us at Online Support
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Why black screen when using browser to view network IP camera?
This phenomenon may be caused by: 
 
1. too many visitors accessing resulting network congestion

2. the IP address amended remotely

3. the camera power off or the network link outage

4. the computer firewall blocking or video card defect
If none of these resolve the issue please write us at Online Support
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What is the network camera Video Management System in longse?
Longse already released the network camera Video Management System software, the VMS (professional version) and the VMS Lite (Lite version), to satisfy the different demands for our worldwide clients.
If none of these resolve the issue please write us at Online Support
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Does Longse network IP camera support extended functions like WiFi and SD card?
Longse has various kinds of IP cameras, including basic version and special version which supports extended functions such as POE, WiFi, WDR, alarm I/O, two way audio, TF/SD card recording, manual zoom auto focus or other functions. 

If you need any recommendation for any kind of products, please contact with the sales engineer or manager for assistance.
If none of these resolve the issue please write us at Online Support
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What is the basic hardware and software configuration for Longse VMS?
(1) Hardware configuration: 

CPU: Intel Pentium dual core 2.0G or above

Main memory:  DDRⅢ 2G or above

Network card :100/1000M Adaptive

Hard disk: 250GB or above

Video card: GeForce4 256MB or above

Monitor: 17” Color LCD or CRT monitor with resolution 1024×768 or above

NOTE: If too many channels simultaneously real time video recording and playback, and meanwhile require good effect and high efficiency, 
the hardware configuration should be improved accordingly.

(2) Software environment: 

Windows 7/8/10 operating system available. Windows 98 or below is invalid.

Internet Explorer 8.0~11.0 available
If none of these resolve the issue please write us at Online Support
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Does Longse VMS support other brand IP Cameras?
Longse VMS Video management system supports ONVIF protocol, so it can be compatible with all the ONVIF IP Cameras launched by any brand.
If none of these resolve the issue please write us at Online Support
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How many pieces IP Cameras can be get into Longse VMS?
Theoretically, Longse new released IP Camera VMS can support 255pcs IP cameras. 
As the VMS just has 100 split screens, it needs the round patrol function if you want to check more than 100pcs IP cameras.
If none of these resolve the issue please write us at Online Support
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What is the IP address for Longse network IP Camera?
The default IP address of Longse network IP camera is 192.168.1.168. You can use our dedicated IP search tool ipsearch.exe to search the IP address.
If none of these resolve the issue please write us at Online Support
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Does network IP camera support remote monitoring?
Yes! Generally through DDNS and port mapping can realize remote monitoring. The operating procedure is similar with the CCTV monitoring system.
If none of these resolve the issue please write us at Online Support
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How many kinds of resolution in network IP cameras?
3.Up to 720P video output resolution can be defined as high-definition network IP camera. 
Presently, the main resolutions for option including:

1Megapixels   16:9 (1280 x 720)

1.3Megapixels   4:3 (1280 x 960)

2Megapixels   4:3 (1600 x 1200)

2Megapixels   16:9 (1920 x 1080)

3Megapixels   4:3 (2048 x 1536)

5Megapixels   4:3 (2592 x 1920)

8Megapixels    (3840 x 2160) 

10Megapixels   (3648 x 2752)
If none of these resolve the issue please write us at Online Support
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What is ONVIF?
ONVIF (Open Network Video Interface Forum) is a global and open industry forum with the goal of facilitating the development and use of a global open standard for the interface of physical IP-based security products – or, in other words, to create a standard for how IP products within video surveillance and other physical security areas can communicate with each other.

Notice: Longse products support ONVIF 2.4 .
If none of these resolve the issue please write us at Online Support
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What is network IP camera?
IP camera is the network surveillance camera with video output resolution up to 720P (1280*720) or above.
If none of these resolve the issue please write us at Online Support
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    How to set the time in the network IP camera?
    1. Manual modification
    2. Synchronize with the local computer time
    3. NTP network time
    4. Synchronize with the NVR time
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    How many languages can Longse network IP camera support?
    Supports 22 languages, including:

    English, French, Hungarian, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, German, Polish, 
    Turkish, Romanian, Finnish, Korean, Persian, Thai, Greek , Vietnamese, Hebrew, Arabic
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Why delay, stumble or blurred screen for network IP camera?
    It may be caused by:

    1. the poor quality of switch or hub
    2. too many switches or hubs connected between the monitor and the IP camera
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Why network IP camera can not connect with Cloud Server?
    It may be caused by:

    1. network congestion or too many visitors 
    2. error in device serial number, user name or password
    3. device offline (please check if the device is connected with the public net in P2P conif)
    4. incorrect network setting, especially the DNS setting (Recommended DNS setting is 8.8.8.8)  
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Why can not access the network IP camera via IE?
    It may be caused by:

    1. wrong IP address
    2. do not install the ActiveX controls
    3. the IE security settings do not open and allow ActiveX controls to run
    4. the firewall of PC blocks the ActiveX controls to run
    5. wrong user name and password for login
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    What is the advantage of network surveillance system?
    1. High definition: several times or even dozens of times clearer than the traditional analog monitoring system

    2. Integratability: can integrate various kinds of functions in the system easily, such as audio, alarm, remote control, intelligent analysis and other technologies

    3. Save cost and labor: transmitted in the network, can reduce the dosage of wire and then save manpower

    4. Easy installation and use

    5. Convenient maintenance

    6. Extendibility

    7. Centralized management 

    As the above unparalleled advantages, we believe that the network surveillance system is the future for video surveillance field, and it is also the focus direction of Longse R&D.
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Is the network IP camera compatible with general switch?
    Yes. IP camera transmission media is the network. 
    As long as the bandwidth of switch meets the requirements for transmission, any brand of switch is compatible.
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    What is the transmission distance of network IP Camera?
    The recommended transmitting distance is 100 meters if directly through network cable. 
    If longer distance is required, you can use switch for extension. 
    One switch can extend 100 meters, mostly 3 switches for 300 meters extension can be adopted. 
    Longer than 300 meters can use network extender or through fiber cable for transmission.
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    How much space does network IP camera video file occupy?
    The the bit rate of network IP camera can be adjusted. It means the video file for recording also can be adjusted.
     
    Take the CIF video compressed by MPEG4 format for example. Its biggest bit rate is 400Kbps (“b” is bit here). 

    One second it needs: 400/8=50KBps (“B” is byte here. Hard disk storage is calculated by Byte)

    One minute it needs: 50KBpsx60s=3000KByte=3MByte

    One hour it needs: 3MBytex60m=180MByte

    One day it needs: 180MBytex24h=4320MByte=4.22GByte (1G=1024M)
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Does network IP camera support mobile phone viewing?
    Yes. Longse network IP camera supports mobile phone with iOS or Android operating system, but do not supports Windows and Blackberry operating system.
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    How to use RTSP stream to view network IP camera?
    If the network IP camera support RTSP stream, its address is written as below:
     
    rtsp://user name:password@ip address:rtsp prot/0  main stream
    rtsp://user name:password@ip address:rtsp prot/1  sub stream
    rtsp://user name:password@ip address:rtsp prot/2  third stream
     
    For example:
    rtsp://admin:admin@192.168.1.90:554/1
     
    From the above address you can get,
     
    The username for login is admin
    The password for login is admin
    The RTSP port default setting is 554
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Why black screen when using browser to view network IP camera?
    This phenomenon may be caused by: 
     
    1. too many visitors accessing resulting network congestion

    2. the IP address amended remotely

    3. the camera power off or the network link outage

    4. the computer firewall blocking or video card defect
    If none of these resolve the issue please write us at Online Support
    SharePrintEmail this page
    Does Longse network IP camera support extended functions like WiFi and SD card?
    Longse has various kinds of IP cameras, including basic version and special version which supports extended functions such as POE, WiFi, WDR, alarm I/O, two way audio, TF/SD card recording, manual zoom auto focus or other functions. 

    If you need any recommendation for any kind of products, please contact with the sales engineer or manager for assistance.
    If none of these resolve the issue please write us at Online Support
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    What is the IP address for Longse network IP Camera?
    The default IP address of Longse network IP camera is 192.168.1.168. You can use our dedicated IP search tool ipsearch.exe to search the IP address.
    If none of these resolve the issue please write us at Online Support
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    Does network IP camera support remote monitoring?
    Yes! Generally through DDNS and port mapping can realize remote monitoring. The operating procedure is similar with the CCTV monitoring system.
    If none of these resolve the issue please write us at Online Support
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    How many kinds of resolution in network IP cameras?
    3.Up to 720P video output resolution can be defined as high-definition network IP camera. 
    Presently, the main resolutions for option including:

    1Megapixels   16:9 (1280 x 720)

    1.3Megapixels   4:3 (1280 x 960)

    2Megapixels   4:3 (1600 x 1200)

    2Megapixels   16:9 (1920 x 1080)

    3Megapixels   4:3 (2048 x 1536)

    5Megapixels   4:3 (2592 x 1920)

    8Megapixels    (3840 x 2160) 

    10Megapixels   (3648 x 2752)
    If none of these resolve the issue please write us at Online Support
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    What is ONVIF?
    ONVIF (Open Network Video Interface Forum) is a global and open industry forum with the goal of facilitating the development and use of a global open standard for the interface of physical IP-based security products – or, in other words, to create a standard for how IP products within video surveillance and other physical security areas can communicate with each other.

    Notice: Longse products support ONVIF 2.4 .
    If none of these resolve the issue please write us at Online Support
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    What is network IP camera?
    IP camera is the network surveillance camera with video output resolution up to 720P (1280*720) or above.
    If none of these resolve the issue please write us at Online Support
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      How many languages can Longse recorder support?
          
      If none of these resolve the issue please write us at Online Support
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      What is the RTSP address of Longse recorder? How to use it?
      Take this address for example,



      So the RTSP address of channel 13 sub-stream is
      rtsp://admin:1@183.233.190.41:8950/121
       
      the RTSP address of channel 2 main-stream is
      rtsp://admin:1@183.233.190.41:8950/10
      If none of these resolve the issue please write us at Online Support
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      How to upgrade the firmware of recorder?
      There are four ways to upgrade.
      1. Use the IP Search Tool to upgrade in PC
      2. Upgrade from the webpage after log in via IE
      3. Use USB flash disk to upgrade manually or automatically
      4. Automatic online update
      If none of these resolve the issue please write us at Online Support
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      How many brands of DDNS can Longse recorder support?
      Including ORAY, NO-IP, DYN, CHANGEIP, A-PRESS, MYQSEE, SKDDNS and SMART-EYES.
      If none of these resolve the issue please write us at Online Support
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      How many users can Longse recorder support to log in simultaneously?
      In the LAN net, Longse recorder can support 5 users log in simultaneously. Only 2 of 5 users can preview via the main-stream and the other 3 users can preview via sub-stream. 
      In the WAN net, it is decided by the network situation. Here we can not list out the specific number of users. 
      It is the same as above if log in by mobile APP via P2P.
      If none of these resolve the issue please write us at Online Support
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      How to access the recorder via IE?
      All Longse recorders, including HVR, XVR and NVR, support log in via browsers based on IE under Windows System 
      (Apple MAC System not support), such as Firefox, Google (Ver. 45 below).

      Step 1. Connect the recorder into LAN net, amend the IP address, use IP Search Tool to search the recorder and then click the one you choose.
      Step 2. Download the OCX control from the pop-ups, install, refresh and then you can see the login interface.
      Step 3. Input the user name admin and password 12345 to log in the recorder.
      Step 4. Please change the password immediately after you using the default password to log in.


      If none of these resolve the issue please write us at Online Support
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      What can I do if the recorder can not record?
      1. Check the hard disk
      Step 1. Please check if the hard disk can be detected and its status is regular. 
      Step 2. If Step 1 is OK, please format the hard disk and check if the equipment is normal working.
      Step 3. If Step 2 is not working, please change another hard disk and try again Step 1&2.
       
      2. Check the configuration
      Please check if the recording planning is set correctly for every channel. 
      If none of these resolve the issue please write us at Online Support
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      What can I do if the recorder can not start or reboot all the time?
      1. Power limited: change a higher input power supplier (e.g. change 2A to 3A)
      2. HDD not compatible: uninstall the HDD to check if the recorder can start or stop rebooting
      3. The firmware bug: use automatic upgrade program or contact with Longse via support@longse.com 
      to get the new firmware for repairing the bug 
      4. Otherwise, send back for repairing if the above solutions are not available
      If none of these resolve the issue please write us at Online Support
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      What can I do if no video after connecting camera with recorder?
      1. Check the power supplier: enough power input is required
      2. Check BNC cable between camera and recorder: tight connection and good quality are required
      3. Check the TV system (e.g. PAL system for camera and recorder both)
      4. Check if the camera is high definition (e.g. AHD) but the recorder is normal analog (e.g. 960H DVR)
      5. Check if the recorder is high definition (e.g. XVR) but the camera is normal analog (e.g. 720TVL)

      Note: The camera should match with the recorder. 
      For example, AHD camera matches with AHDVR, CVI camera matches with CVR, TVI camera matches with TVR.
      4IN1 HD camera can match with any of above recorders 
      because its output signal can be switched according to the recorder you apply. 
      If none of these resolve the issue please write us at Online Support
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      What should I know before connecting the network IP camera with NVR?
      Longse network IP camera supports ONVIF 2.4 and ONVIF Profile S Protocol. 
      It is compatible with any brand NVR which supports ONVIF 2.4 or ONVIF Profile S. 
      When connecting IP camera to the NVR, please check twice the ONVIF port (Default 8999) and the user name & password.
       
      Note: Now the default setting of Longse Ambarella solution AL200 is 80 for ONVIF port, RTSP port and HTTP port.
      If none of these resolve the issue please write us at Online Support
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        What is the network camera Video Management System in longse?
        Longse already released the network camera Video Management System software, the VMS (professional version) and the VMS Lite (Lite version), to satisfy the different demands for our worldwide clients.
        If none of these resolve the issue please write us at Online Support
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        What is the basic hardware and software configuration for Longse VMS?
        (1) Hardware configuration: 

        CPU: Intel Pentium dual core 2.0G or above

        Main memory:  DDRⅢ 2G or above

        Network card :100/1000M Adaptive

        Hard disk: 250GB or above

        Video card: GeForce4 256MB or above

        Monitor: 17” Color LCD or CRT monitor with resolution 1024×768 or above

        NOTE: If too many channels simultaneously real time video recording and playback, and meanwhile require good effect and high efficiency, 
        the hardware configuration should be improved accordingly.

        (2) Software environment: 

        Windows 7/8/10 operating system available. Windows 98 or below is invalid.

        Internet Explorer 8.0~11.0 available
        If none of these resolve the issue please write us at Online Support
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        Does Longse VMS support other brand IP Cameras?
        Longse VMS Video management system supports ONVIF protocol, so it can be compatible with all the ONVIF IP Cameras launched by any brand.
        If none of these resolve the issue please write us at Online Support
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        How many pieces IP Cameras can be get into Longse VMS?
        Theoretically, Longse new released IP Camera VMS can support 255pcs IP cameras. 
        As the VMS just has 100 split screens, it needs the round patrol function if you want to check more than 100pcs IP cameras.
        If none of these resolve the issue please write us at Online Support
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        What should I do if forget the network IP camera password?
        1. Reset the password by the security questions
        2. Reset by sending the password verification mail to the security authentication mailbox
        3. Hard reset to default by pressing the hard reset button in the camera cable or on camera main board
        If none of these resolve the issue please write us at Online Support
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        How to choose lens for different environment?
        FocusViewing RangeViewing Angle 
        (With 1/3” sensor)
        Viewing Angle  
        (With 1/4” sensor)
        Difference
        3.6mm5m85º73º12º
        4mm
         
        5m indoor,
        10m outdoor
        80º67º13º
        6mm15m outdoor68º56º12º
        8mm20m~30m45º35º10º
        12mm35m~40m35º25º10º
        16mm≦50m30º20º10º

        If none of these resolve the issue please write us at Online Support
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        How to calculate the recording space occupation?

        Hard Disk Capability= (Bit Stream/8*Time)

         
        FormatVideo flowOne dayOne weekOne month
        1080P1-8M/s10.5G-84.4G73.5G-590.8G315G-2.5T
        720P1-4M/s10.5G-42.2G73.5G-295.4G315G-1.24T
        D10.5-2.5M/s5.3G-36.4G37.1G-254.8G159G-1092G
        CIF0.18-1M/s540M-10.5G3.7G-73.5G111G-315G

        CIF      64kbps-1024kbps          
        D1      512kbps-2560kbps
        720P    1024kbps-4096kbps        
        1080P  1024kbps-8192kbps

        The maximum capability of one set PC storage server:12*1.5TB=18TB
        SATAII R&W speed: 40MB~60MB

        If do not consider the hard disk capability, the server can hold up (40*8/2)=160CH 2Mb/s IP cameras to read and write simultaneously.
        If none of these resolve the issue please write us at Online Support
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        E-mail address

        Online Support