Frequently Asked Questions...
I have cable TV (thru Comcast) using a coaxial cable. How do I hook up my computer for internet?
I have cable TV (thru Comcast) using a coaxial cable. How do I hook up my computer for internet, since my computer does not have a coaxial jack?
This has never happened to me before, but my landlord says that I need a coaxial splitter, one for the tv and one for the computer. And then I need a converter from coaxial to Ethernet. What is this device called and where can I get one??
I have internet, you condescending dick wad. And they do give internet away when stupid people do not lock their wireless stream.
People, talking out your ass holes doesn't make you good advice givers. If I didn't have internet, I would not have asked this question. I am pretty sure my landlord would have told me that I don't have internet when I asked him how to hook it up.
Common sense is just not common anymore.
Answer:
You'll need to subscribe to, and pay for, high-speed cable Internet service in order to do this.
Your cable company (Comcast) does not just give Internet access away... it is a subscription service you need to add to the cost of your monthly cable bill.
Once you subscribe to Comcast's high-speed cable Internet service, they will send a technician to your site with a CABLE MODEM. The cable modem is the device that will connect to the coaxial cable and will convert the signal into standard Ethernet. You will then connect your computer to the cable modem via a standard Ethernet cable.
Any other hardware you might happen to need (for example, the coaxial splitter to split your cable into two seperate lines, one for your TV and one for the cable modem) will be provided by the Comcast installer at the time of your initial set-up. You won't need to purchase that stuff.
Finally, it is possible to go out and purchase your very own cable modem at any big-box electronics store. However, you cannot simply buy one and attach it to your coaxial cable and expect to get high-speed Internet. Comcast charges for their services and have methods to prevent people from receiving free access. In this case, Comcast must first register the unique MAC address of any cable modem before the cable modem will be able to receive a signal. So if you purchase a cable modem yourself and connect it to the coaxial cable, you still won't receive Internet until you call Comcast and subscribe to their service.
To make a long story short... if you want high-speed cable Internet access you're going to have to call Comcast and subscribe to it. They'll get you the equipment you need to set up the service... and then you'll have a standard Ethernet connection to connect to your computer.
**ADDENDUM**
Well, here's a perfect example of the axiom of a "little bit of knowledge being a dangerous thing," coupled with the manners of a boorish brat.
I'll take my 10+ years of network experience over your ramblings any day!
Let's settle some of your prattle right now:
--STEALING Internet service from a neighbor who has an open wireless access point is NOT the same as Comcast giving their service away. Just because you have (or have had) a neighbor who didn't know how to secure their access point says nothing about Comcast. In fact, if you were to be caught jumping on someone else's wireless router without their permission, you can be prosecuted.
--If your have a subscription to Comcast cable, then call the support number on your Comcast bill and ask them where your cable modem is. There are no Ethernet cards out there that use coaxial as a medium... at least not since the days of 10base2. If you are paying for the service and Comcast has not provided you with the proper equipment a call to their service department will allow you to schedule a date for installation.
--If you are paying for Internet connectivity as part of your rent, then you should have an standard RJ-45 jack somewhere in your apartment. Your landlord either doesn't know or doesn't care to answer... most likely he just doesn't understand what you are asking.
Basically, the only type of network that uses coaxial cable is known as 10Base2... and you won't find this in use anywhere. Also, it should be noted that 10Base2 networks are NOT used by Comcast to carry television/Internet.
My first recommendation would be to call Comcast... if you are indeed paying them for Internet service it is their obligation to provide you with the equipment.
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Coaxial Splitter
SplitterWallPlate™ The NEW WAY to Install
Security camera system checklist
- 1. Black/White or Color?
Color Cameras are more popular, due to their clearer identifications. But, in low light conditions, B/W cameras are more ideal, because they generally require less illumination. Newer models of Day/Night cameras work as color camera during daytime and B/W at night.
- 2. What basic equipments are necessary to start video surveillance?
Camera body, Lens, Mount, Cable, and Power Supply.
Some cameras (like dome and bullet type cameras) come with built-in lenses. You will also need CCTV monitor (or regular TV), quad splitter or switcher to combine more than one camera, recorder (like DVR), outdoor housing case and other accessories. Wireless systems are great way to avoid cabling. Network based Web Cameras and DVRs are for remote surveillance.
- 3. What if I need more than one camera?
A quad splitter, 4 channel or 8 channel switcher, or multiplexer can be used to combine multiple cameras into one monitor or recorder. DVRs usually come with a built-in multiplexer.
- 4. Hidden Cameras
If you want a hidden camera, you have two options; you can either build one with a mini or an ultra-mini camera, or buy one. Some ultra-mini cameras are only as big as a quarter to hide more easily. Hidden cameras built-in clocks, radios, or smoke detectors are also available but are generally more costly. Please note that, in most US states, using hidden cameras with audio in a covert way is prohibited.
- 5. Placing cameras outdoors
You may use an outdoor housing case, with or without heater and/or blower. The heater and/or blower built-in housing cases generally require a separate power source. Some cameras are made water resistant and do not need separate housing cases. Some of these also come with removable sunshields.
- 6. When are infrared cameras necessary?
Economically commercialized infrared cameras, some also water-resistant to be installed outdoor, can see up to 40 to 80ft distance in total darkness. You may also use infrared illuminators, which can illuminate up to 100ft (Color cameras, unless their IR filter is removed, do not work with infrared illuminators.) Infrared cameras work as ordinary video camera during daytime. Color infrared cameras work as B/W ones at night.
- 7. What is an ideal angle for a lens to cover?
Widely used and recommended angle of view of the lens for surveillance purpose is 72o to 78o. Narrower will give you clearer pictures. Wide angles like 92o can cover more area but it may show distorted pictures.
- 8. Vari-focal vs. Zoom Lens
Focal length and focusing for vari-focal lens should be adjusted respectively while zoom lens focuses automatically when the focal length is adjusted. Manual zoom lens needs to be manually adjusted while motorized zoom lens can be controlled with a remote controller.
- 9. Manual Iris vs. Auto Iris
If the lighting condition changes significantly and frequently, like the sun, an auto iris lens is required. If the lighting remains same, a manual iris or a fixed iris lens is recommended. Most CCTV cameras accept DC auto iris lens while some special cameras use video auto iris lens.
- 10. Do I need pinhole lens?
A pinhole lens with a tiny opening can be hidden in the wall, ceiling or other objects. Some mini cameras have a built-in pinhole lens. To mount a pinhole lens to a standard camera is very expensive.
- 11. CCTV Monitor vs. Standard TV
If you are use only one camera, a TV (which has a RCA video input) is definitely recommended. Even for more than 1 camera, if you use a processor like a quad splitter, a switcher, or a DVR (Digital Video Recorder), a TV would be fine. But, for special features like slave video outputs (to be connected to additional monitors), alarm systems, or for multiple inputs, professional CCTV monitors work best.
- 12. CRT vs. LCD Monitor
Conventional CRT monitors are bulky and heavy while they are cheaper than LCD monitors which has higher resolution. If you have enough budgets and want to use one monitor for both CCTV and computer, LCD monitor is recommended. 17" & 19" are popular sizes for LCD monitors.
- 13. Monitor Input Connectors
BNC is commonly used for connecting to both CRT and LCD monitors. These days, most LCD monitors have an S-Video input as well as a 15-pin Mini D-Sub for PC Signal input.
- 14. Wireless vs. Wired Transmission
A wireless system is convenient in avoid cabling works, but can sometimes be affected by high voltage power lines, unseen razor waves, large machines like lathes, and metal walls. Wired transmission guarantees stable video. Coaxial cable is most used for CCTV cameras.
- 15. 12VDC vs. 24VAC
24VAC system is more professional and most CCTV cameras work with a 24VAC power supply. Mini cameras, dome cameras, and bullet type cameras are usually 12VDC system. Recently developed cameras have both 12VDC and 24VAC inputs.
- 16. Battery operated cameras
Many small sized cameras work with 12VDC battery pack; however it requires correctly matched polarity. You may also use a "power cord" (easily found at any auto parts shop) that can draw 12VDC through the car cigarette lighter.
- 17. Motion detection
Most DVRs now come with built-in motion detection software to trigger recording. You can program the sensitivity and detection zone. It works with any change of the pixels within the picture frame. You can also install a hardware motion detector connected to the DVRs to trigger recording.
- 18. Pan, Tilt, and Zoom control
A dome type camera that already has built-in PTZ is easy to install, maintain, and control. You can also control it on the computer monitor with the mouse if the PTZ system is connected on the network via a video server.
- 19. Time Lapse VCR vs. DVR(Digital Video Recorder)
Conventional Time Lapse VCR, despite the inconvenience in reviewing the recorded pictures, is more economical than a DVR (Digital Video Recorder). DVRs are more popular for its convenience and picture quality.
- 20. Remote Surveillance over the Network
Network DVR or Web Camera, connected to the Internet or LAN and assigned with an IP address, can be monitored at a remote place. DSL or T-1 line is required to be connected to the Internet.
- 21. HD CCTV System
As the TV Broadcasting changed to HD (High Definition) System, it's time for HD cameras to come to the market. Still, the traditional standard resolution system does not accept HD cameras and you have homework to prepare peripheral devices such as recorders to accept the HD cameras.
About the Author
2mcctv.com
2mSolutions Security Group Provides the unique expertise to bring the perfect solutions to your commercial, educational, and governmental security necessities.
2985 S. State Hwy. 360
Suite 130 Grand Prairie Tx. 75052
Tel: +1 646 871 3013
Fax: + 1 972 999 4113
Jordan Branch
Tel: +962 6 556 1768
Hazem M. Al-Taqatqah
Technical Support Administrator
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