DIFFERENCE BETWEEN SYV-75-3 AND SYV-75-5

COAXIAL CABLE - DIFFERENCE BETWEEN SYV-75-3 AND SYV-75-5

Coaxial cable is widely used in connection for almost all analog video surveillance systems. Similar to other low-end products, almost all coaxial cable are made-in-china, these coaxial cables are compliant with Chinese standard: GB/T14864-93.

In order to buy coaxial cable with correct specification, you may want to know the difference between SYV-75-3 and SYV-75-5.

SYV means Solid polyethylene (PE) insulated coaxial cable, 75 means impedance value, the following 3, 5, 7, 9, 12 stands for its insulation outer diameter (respectively 3mm, 5mm, 7mm, 9mm, 12mm).

·         SYV-75-3: the connection distance between analog camera and DVR ≤300 meters;

·         SYV-75-5: the connection distance between analog camera and DVR ≤500 meters;

·         SYV-75-7 or SYV-75-9: the connection distance between analog camera and DVR ≤800 meters;

·         SYV-75-12: the connection distance between analog camera and DVR ≤1000 meters;

SYV COAXIAL CABLE SPECIFICATION

MODEL/SPEC	Impedance	Wire core structure Root/diameter	Insulation OD (mm)	External diameter	Attenuation 30MHz   200MHz
SYV-50-1	50±3	7/0.09	0.87±0.05	1.9±0.10	0.336      0.873
SYV-50-2-1	50±3	7/0.17	1.6±0.10	2.9±0.10	0.302      0.524
SYV-50-2-41	50±3	1/0.68	2.2±0.10	4.0±0.20	0.129      0.341
SYV-50-3	50±3	1/0.9	3.0±0.15	5.0±0.20	0.10       0.264
SYV-50-5-1	50±3	1/1.37	4.8±0.20	7.2±0.30	0.0664     0.181
SYV-50-5-2	50±3	1/1.37	4.8±0.20	7.8±0.30	0.0664     0.181
SYV-50-7-1	50±3	7/0.76	7.3±0.25	10.3±0.30	0.0497     0.137
SYV-50-7-2	50±3	7/0.76	7.3±0.25	11.2±0.30	0.0497     0.137
SYV-50-9	50±3	7/0.95	9.0±0.3	12.2±0.4	0.0396     0.111
SYV-75-2	75±5	7/0.10	1.5±0.10	2.9±0.10	0.22       0.579
SYV-75-3	75±5	7/0.17	3.0±0.13	5.0±0.25	0.122      0.308
SYV-75-5-41	75±5	1/0.75	4.8±0.20	7.2±0.30	0.07.6     0.19
SYV-75-5-2	75±5	7/0.26	4.8±0.20	7.2±0.30	0.0785     0.211
SYV-75-7	75±5	7/0.40	7.3±0.25	10.3±0.30	0.051      0.140
SYV-75-9	75±5	1/1.37	9.0±0.30	12.2±0.40	0.0396     0.104

In other countries, coaxial cable use RG ratings to distinguish between the different kinds of cables. RG59 coaxial cable is the ideal choice for analog video surveillance system. Furthermore, for easy video surveillance installation, people can choose Siamese coaxial cable which consists of a RG59 cable merged together with a 2C power cable. Through using Siamese coaxial cable you can run the power and video signal for your security cameras simultaneously, which in turn, greatly reduce installation time and cost. Generally, RG59 equals to SYV-75-5.

MODEL/SPEC	Conductor(No.of threads/diameter)	(mm) Insulation OD	(mm) OD	Max Conductor resistance at 20℃Ω/km	Test voltage	1KHZnF/Km Static capacitance	10MHZdB/Km Nominal Attenuation
1.5C-2V-75Ω	1/0.26	1.6	2.9±0.4	968	1000	69±4	96
2.5C-2V-75Ω	1/0.4	2.4	4.0±0.5	145	1000	69±4	52
3C-2V-75Ω	1/0.5	3.1	5.4±0.5	91.4	1000	67±3	42
3C-2VCS-75Ω	1/0.5	3.1	5.4±0.5	256	1000	67±3	42
3C-2VS-75Ω	7/0.18	3.1	5.4±0.5	100	1000	67±3	48
5C-2V-75Ω	1/0.8	4.9	7.4±0.5	35.9	1000	67±3	27
5C-2W-75Ω	1/0.8	4.9	8.3±0.5	35.9	1000	67±3	27

Embedded Network Video Recorders (NVRs) over Windows-based NVRs Comparison

Embedded Network Video Recorders (NVRs) over Windows-based NVRs Comparison

Video surveillance users who opt for an NVR using an embedded, dedicated Linux operating system within a self-contained unit will benefit from performance which is superior to that offered by a Windows-based NVR in terms of ease of use, system stability and decoding capability.

Embedded NVRs are distinguished from WINDOWS-based NVRs primarily on how they operate and the features they provide. The stand-alone NVR comes in a single, compact enclosure. By contrast, a WINDOWS-based NVR is a peripheral addition to a system involving a CPU, keyboard and monitor. In confined locations, an embedded unit performs a similar if not wider range of functions while occupying less space. Embedded NVRs have overcome their perceived shortcomings in terms of storage capacity and types of storage medium through use of devices including IP-SAN, eSATA, NAS (network-attached storage) and Fire wire.  Furthermore, embedded NVRs can support interfaces to other surveillance devices which can be conveniently integrated with alarm systems and access control systems as well as PTZ remote control systems.

Functions common to the two approaches
Some common functions between the two video recording solutions in the surveillance market, it will be useful to list the core functions that are common to both approaches. These include: recording; archiving; display; playback; search on parameters such as date, timeline and event; camera management; triggered recording on prescribed events and export to removable media. NVRs are also usually expected to be able to handle VoIP packets. Once digitalized video has been streamed, end-users expect to be able to treat it like any other network data, viewing it locally, on LANs and remotely from web browsers. They also expect to be able to exercise PTZ control over cameras remotely, configure settings and even perform upgrades remotely.

Storage

Although NVRs have ample internal recording and storing space, the PC-based systems offer as much as seven times more storage, when compared to an NVR. This advantage is, however, addressed by NVRs, through the provision for external storage options (USB storage devices, eSATA devices, Firewire storage devices, NAS appliances, etc.)

Reliability
The precise architecture of the embedded NVR units makes them less prone to crash. However, the WINDOWS methodology for NVRs is certainly 'open' in terms of the addition of external storage, installation of software etc. The controls are embedded into the NVR; they are an integral part of the panel rather than an adjunct, and the activity of operators can therefore be more easily restricted to legitimate usage.

Stability
Unlike a WINDOWS-based unit which is likely to run a range of Windows™ applications, an embedded NVR benefits from the stability that comes with Linux code which is optimized to run only applications relevant to the surveillance tasks required. An embedded operating system contains only the software components necessary for the specific functions of the NVR, and the unit will be supplied with optimum configurations straight from the factory after rigorous testing.

Scalability

An NVR is designed to offer optimal performance for a set number of cameras, and is normally less scalable than a WINDOWS -based system. This makes the unit suitable for smaller systems where the number of cameras stays within the limits of an NVR’s designed capacity.

Boot Time

The NVR runs an embedded operating system as compared to a WINDOWS -based system, which needs to run an application under the Windows OS before it begins recording. This means that the NVR will start faster as compared to the WINDOWS -based system; which will take longer to load.

Complex decoding
Embedded NVRs consistently outperform WINDOWS-based solutions in their ability not only to perform complex decoding but also to give the user reliable video playback and preview. Currently, certain NVRs are among the few units which can perform both local decoding and playback, with decoding of up to 16 channels at 1080p being achievable. The processing demands made on a WINDOWS-based solution to achieve comparable performance are far higher than those required of an embedded device, and necessitate powerful, expensive CPUs.

Power consumption and manufacturing carbon footprint
Embedded technologies are helping the surveillance industry to go green in marked contrast with the WINDOWS approach. The power consumption of an embedded NVR is approximately 70W which is less than an incandescent light bulb. By contrast, the likely power consumption of a WINDOWS capable of running an NVR is approximately 200 watts and together with a large enterprise-grade monitor, the total figure will be about 300 watts. For any end-user mindful of their carbon footprint, these figures alone must do much to settle the debate.

Ease of Use
Embedded NVRs can have operating panels based on the very best intuitive design principles. LED signals, digital inputs and outputs, push buttons and dials can all be arranged in an ergonomic way. Sensible layout in a panel approach rather than a screen-based GUI can replicate the ease of use found in a WINDOWS but without the vulnerabilities described above.

ONVIF

Linux based Network Video Recorder for multi-brand and ONVIF compliant multi-megapixel IP cameras and basic automation.

HDCVI Vs HD-SDI & IP

HDCVI Vs HD-SDI & IP

HDCVI Vs HD-SDI

Longer Transmission Distance:-
Both HDCVI and HD-SDI can transfer HD signal @720p/1080p, but HDCVI has a distinguished advantage at the transmission distance.
With general transmission media, HD-SDI reaches 100 meters at most while HDCVI, at least, transmits 500 meters by using 75-3 cable and featuring low signal distortion rate.

Better Anti-Interference Capability:
The anti-interference capability of HD-SDI solution is relatively poor when been placed against high-frequent radiation environment, which could lead to higher bit error ratio while the HDCVI adopts low-frequency modulation technology, making it free from the high-frequency wireless electric radiation to ensure stable video transmission at high image quality.

HDCVI Vs IP

Reliability:
HDCVI adopts P2P transmission to ensure a smooth and reliable transmission; while the transmission of network camera is based on Ethernet and thus may lead to network jitter and packet loss.

Real-time:
The network HD features video bu­ffer technology and the delay is controlled within 300 milliseconds in the general and fair networking environment; However, HDCVI features no latency capability for an outstanding real-time performance.

No Compression:
For HDCVI, there is no compression processed to maintain its original e­ect and thus present in vivid image quality.

Benefits of HDCVI Technology:-

Lower Cost:-
Unlike HD-SDI, which posts high demands on cabling and installation; HDCVI solution inherits the same installing means of conventional analog solutions, which is of great convenience and also decrease the cost.

Smart Control:-
As HDCVI transmits multiple-signal (video/audio and dual-way data) over one cable, it realizes video/audio synchronized transmission and reverse-signal transmission control at the same time, such as PTZ and zoom control; which further simpli‑es the installation.

Where To Use HDCVI CCTV?

HDCVI Cameras very useful where HighDefinition CCTV Cameras require at Lowcosts and all areas like Banks, Hotels, Restaurants, Residential Buildings, Apartments, Flats, Police Stations, Public Areas, Various Government Sectors, Private Sectros, etc.

Also Visit:
http://arindamcctvaccesscontrol.blogspot.in/2012/08/hd-cctv-over-coax.html

&

http://arindamcctvaccesscontrol.blogspot.in/2013/03/hd-sdi-high-definition-cctv-vs.html

Port Forwarding the Prolink H9200 Router for HTTP

Port Forwarding the Prolink H9200 Router for HTTP

Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the Prolink H9200 router your computer needs to have a static IP address.

Now that you have setup a Static IP Address on your computer, please enter the IP address that you assigned to your computer here: 192.168.1.1

Login to the Prolink H9200 Router

Now we need to know your routers IP address. You can find it a variety of ways.

Login To The Prolink H9200 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

Enter your username and password now.

The Default Prolink H9200 Router Username is: admin

The Default Prolink H9200 Router Password is: password

Click the Ok button to log in to your Prolink H9200 router.

How to Port Forward HTTP on the Prolink H9200

If you are having trouble with this guide, then perhaps PFConfig may be your solution. PFConfig is a software tool that will automatically forward ports for your Prolink H9200 router to save you time and hassle.

Now that you are logged in to your Prolink H9200 router you should see the following:

Click the Services button near the top of the page.

Select NAT Rule Entry from the NAT Options drop down box.

Click the Add button near the bottom of the page.

Forward Ports 80 on the Prolink H9200

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. HTTP requires you to forward the 80 ports. Go ahead and enter the settings shown above into the NAT Rule - Add menu and then click Submit.

Click the Close button near the bottom of the page.

Click the IP Filter link near the top of the page.

Select Low from the Security Level drop down box.

Select Accept from the Public Default Action, Private Default Action and DMZ Default Actiondrop down box.

Click the Submit button near the bottom of the page.

Click the Admin button near the top of the page.

You should now see a new menu. In this new menu, click Commit & Reboot.

Click the Commit button near the bottom of the page.

Click the Reboot button near the bottom of the page.

And that is it! You are done!

Choosing Video Surveillance for SMB Owner

5 Top Points for Choosing Video Surveillance for SMB Owner

Video surveillance innovations have changed the landscape for users in the SMB (Small, Medium-sized Businesses) market in India. Improved security, reduced liability and peace of mind, along with useable video for real-time monitoring, Mobile Surveillance and forensic investigations, are some of the benefits now available to the SMB.

Following are top 5 points every SMB owner should be aware of when upgrading or implementing new video surveillance systems / CCTV surveillance systems.

Quality – One key to a successful system is the quality of the image. New high definition (HD/AHD) and megapixel IP cameras capture images in great detail, enabling the SMB owner to more effectively protect people and assets. Improvements in camera technology such as wide dynamic range (WDR), digital signal processing (DSP), and increased signal to noise ratios have helped create cleaner images with stable operation, allowing their use over a wide range of environmental conditions. State of the art technology enables low-light operation, outstanding 30 FPS quality and high standards with minimal maintenance.

Wide Selection / Functionality – CCTV cameras come in all shapes and sizes, in all price ranges with a multitude of features. It’s important that you know what you want to accomplish with the camera and not be influenced by bells and whistles. Cameras are available for indoor and outdoor applications, in dome or box configurations, and with or without audio capability. Network cameras can be accessed remotely, moved anywhere on an IP network and conveniently powered via Power over Ethernet (PoE). Digital technology has also enhanced the feature set of cameras with new and exciting capabilities. Advanced features include motion detection that can analyze video and respond automatically with actions such as tripping an alarm or initiating recording, freeing personnel from the need for constant monitoring. Image processing digitally removes ambient fog, haze or smoke to create the clearest picture. Other features include on-board recording to SD card, network failure detection, privacy mask and a variety of built-in video analytics features including active tampering detection and audio detect.

System Integration – One of the most compelling reasons for SMBs to consider new video surveillance technologies is the improved system integration capability. Open architecture and industry standards such as ONVIF, PSIA and H.264 have helped eliminate challenges once faced in designing a system. Now, best of breed designs can be put together to minimize financial impact while meeting security requirements with best available technology. Hybrid solutions further help preserve investments in infrastructure by deferring or eliminating the need to rip and replace systems that are still useful and functional. Additionally, the growing availability of integrated solutions like recorders with built-in software control and management capabilities enables the implementation of high performance, multi-camera HD systems with exceptional functionality, cost-efficiency and scalability.

Multi-Purpose Uses– New systems can offer the SMB options beyond video surveillance for improving business operations. For instance, video can be used to monitor daily operations and employee productivity. Not only can weaknesses or non-conformance issues be identified but the video system can be used to instruct the proper procedures. In retail environments, cameras can be integrated with point of sale (POS) systems to help with loss prevention. Video images can also be used to review consumer traffic patterns to assist the SMB owner in realizing optimum store layouts. The quality and reliability of the system makes the possibilities endless.

Technology Partners– SMBs may not have the staff or specific expertise and experience necessary to determine the kinds of products that will solve their particular issues, or to evaluate those products in order to choose the right one for the organization. By partnering with a trusted integrator who has knowledge and understanding of the systems, the SMB owner can better protect the value of the investment and help to ensure on-going satisfaction with the system.

The video surveillance playbook for SMBs has changed by becoming both more complex and more compelling. Taking the time to research and understand will help to make the decision process easier.