17 | Video Recorder | Q. Can I use my existing analog cameras with NVR? | 2013-04-28 |
A.
Yes. you can use conventional analog cameras with the NVR by adding network video encoders. |
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16 | Video Recorder | Q. What is the audio codec technology used in NVR? | 2013-04-28 |
A.
Currently, G.711 u-Law, G.711 a-Law, ADPCM 16KHz, or G.726 audio codecs have been applied to the recorder. Please refer to the A&E specification for audio codec information applied in each product. |
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15 | Video Recorder | Q. What cables/connections do I need on the NVR? | 2013-04-28 |
A.
Most NVRs have RJ-45 female connectors on the back. You need to connect UTP cable’s RJ-45 male connector to NVR’s RJ-45 female connector directly. Also, you have to connect the cables correctly according to WAN or LAN. For WAN, you should connect the UTP cable to the public area network port. For LAN, you should connect the UTP cable to the local or private area network port. Mostly, CAT-5 UTP cable is used for connecting IP cameras, and CAT-5e or higher level UTP cable is used for connecting network switching hub. |
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14 | Video Recorder | Q. What is an NVR (Network Video Recorder)? | 2013-04-28 |
A.
A Network Video Recorder (NVR) is an internet protocol (IP) based video surveillance system or software that is designed to record and playback the video from IP cameras. Unlike DVRs (Digital Video Recorder), typically, NVRs do not have video compression engines on board because the video is digitized, processed and compressed by IP cameras, and then transmitted to the NVRs over IP network. But, the NVRs should decode both live video streams and playback video streams. Usually, the NVRs support multi-channel video display, flexible recording schedule with different video profiles with playback capability, a user-friendly GUI, intelligent event detection and notification, remote monitoring and control, and PTZ camera control, etc. There is a similar, but different network video recorders called Network Storage Recorders(NSRs). Typically, NSRs do not have video output, and all the operations are done over the IP network. So you need to use a PC to access the live or recorded video.
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13 | Video Recorder | Q. What is SMART(S.M.A.R.T.)? | 2013-04-28 |
A.
SMART(Self Monitoring Analysis and Reporting Technology) is a feature provided by HDD. It monitors possible conditions that the HDD has been exposed to or the status of HDD errors. |
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12 | General | Q. What should I do when the video is not displayed on a monitor? | 2013-04-28 |
A.
If you can’t see any images on a monitor, please check the following points. - Check the monitor is turned on and video input cable is connected to the NVR correctly. Also, check whether the monitor cable has no defect. |
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11 | General | Q. Is it going to be a problem when I use PoE and DC power together? | 2013-04-28 |
A.
Normally, NVRs or network switching hubs are PSEs (Power Sourcing Equipments) and have no consideration about the PoE and DC power because they generate the PoE power using DC power and have no collision between PoE and DC power. |
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10 | General | Q. Is DirectIP plug and play? | 2013-04-28 |
A.
Yes. DirectIP supports plug and play functionality. If you connect the camera’s cable to NVR’s DirectIP port, you can see the camera’s image on the monitor connected with NVR. However, NVR shows the camera’s image sequentially according to the camera’s connection sequence regardless of NVR’s DirectIP port number. So, if you want to fit the image display sequence to NVR’s DirectIP port number, you need to rearrange the display sequence of NVR’s video image. |
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9 | Camera | Q. There are Alarm In/Out ports on the DirectIP cameras. Do DirectIP NVRs work with this? And then how? | 2013-04-28 |
A.
Some DirectIP cameras have built-in alarm in/out ports. Normally, alarm input has TTL voltage level and NC/NO programmable. Alarm output only supports the NO mode with relay output. Regarding the alarm in/out specifications, you can connect your alarm devices such as a smoke sensor or fire alarm to the alarm in/out port on the DirectIP camera. |
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8 | Camera | Q. How can I configure DirectIP NVRs and cameras ? | 2013-04-28 |
A.
DirectIP cameras can be configured by IDIS Discovery software and DirectIP NVRs. Our software helps to find and configure your camera fast and easy. If DirectIP cameras are connected to DirectIP NVRs, you can easily configure multiple DirectIP cameras on NVR’s setup menu. If you set multiple camera configurations on NVR, all changed parameters will be passed to each DirectIP camera immediately. |
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7 | Camera | Q. Do DirectIP cameras have OSD menu? | 2013-04-28 |
A.
No. DirectIP cameras have no OSD menu. So, you should configure the DirectIP using IDIS NVR, IDIS Solution Suite, IDIS Center, or IDIS Discovery software. |
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6 | Camera | Q. Can I get the same level of performance with 3rd party IP cameras - not using DirectIP protocol? | 2013-04-28 |
A.
It’s difficult to get the same level of performance with 3rd party cameras. Generally, concerning transmitting video streams to DirectIP NVRs, 3rd party cameras have lower performance than DirectIP cameras. That is because DirectIP protocol has specific multiple stream channels and their video profile and frame rate adjustment technology to satisfy optimal performance of video data transmission for live monitoring, recording, playing, and remote transmitting. So, if you connect 3rd party cameras with IDIS NVRs, the benefits of DirectIP protocols disappear. |
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5 | Accessory | Q. Can I use my existing switching hub to utilize DirectIP features? | 2013-04-28 |
A.
Of course, you can use the existing switching hub, But, most non-DirectIP switching hub can’t support the specific features like DirectIP hub. |
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4 | Camera | Q. What does IRE mean when it comes with luminence for surveillance cameras? | 2013-04-28 |
A.
IRE stands for Insitute of Radio Engineers and represents the composite video signal in percentage terms. That is, 100 IRE equals 100% full signal level which means 714mV amplitude active video signal. |
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3 | Camera | Q. What are ICR, TDN, and DDN? | 2013-04-28 |
A.
ICR ICR (Infrared Cut Filter) is used with color CCD or CMOS image sensors to produce accurate color images. During the day, the camera uses an ICR to reflect or block mid-infrared wavelengths while passing visible lights. However, as light diminishes below a certain level, some cameras can automatically turn off ICR functionality to deliver high-quality, black and white image using infrared light.
TDN TDN (True Day/Night) technology supports night vision capability by implementing a physical ICR that is removed by a mechanical motor.
DDN DDN (Digital Day/Night) technology allows for viewing in both day and night conditions, without the use of an ICR. As light diminishes below a certain level, DDN technology switches color image to black and white image to offer similar benefits to TDN at a lower cost. At night, the captured image depends on the lighting and infrared waves off objects. |