Email:daisylee@saleingsun.com Shenzhen Rocfly Blue Electronic Co.,Ltd

Shenzhen Rocfly Blue Electronic Co.,Ltd

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Shenzhen Rocfly Blue Electronic Co.,Ltd

Add:9th Floor, Yonghe Building,No.23,Yonghe Road, Fuyong Street, Bao’an District,Shenzhen,China,518103

Con:Anna Ren

Tel:0086-0755-27392160

Pho:0086-13822237325

Fax:0755-27392160-825

E-mail:anna@saleingsun.com rocflycarl@aliyun.com rocflycarl@outlook.com

Web:www.rocflygreens.com

the potential problems we may meet on ir repeater system

The System and Potential Problems

Basically the whole system should be "transparent" to the remote control and remote controlled devices. The conversion to electrical signals, distribution and conversion back to IR light should have no detrimental effects on the light signals, or at least have a negligible effect on the functionality. Seems like it should be pretty simple to do, right? Well, in fact, there's a bit more to it than that. The devil is in the details, as usual for all this fun AV stuff.


Problem #1: Power
All this stuff needs power to work, and this causes limitations in the number of targets and emitters you can use with a given rated power supply. Target power outputs and emitter power requirements vary as well. Cable lengths and gauges can also be a factor, the longer the wire and higher the gauge the more likely that it could cause enough power loss to have an effect on the system.


Problem #2: Light Bends 
Pesky light waves stubbornly refuse to turn corners, lose their strength with distance, bounce all over the place causing interference patterns and are also emitted by room lighting, the sun and of course your display which "rather annoyingly" (ha ha) puts out lots of light itself. Unfortunately all these light sources tend to put out light at frequencies in the infrared band in addition to the light waves you can see. Putting an IR receiver right next to your lovely Flat Panel display subjects the infrared light coming in to the various frequencies of light going out, causing interference. The sensor itself generally accepts a wide frequency range and needs to be properly filtered to remove non infrared band signals. The closer the receiver can restrict the incoming light to just the frequencies put out by the remote control the purer the signal will be, and the more reliable the whole system will be.


Problem #3: Duplicate IR Codes 
IR code conflict is a bear. If a manufacturer of a device inadvertently uses an IR code that is used by another manufacturer then you get two devices responding in their own unique ways to a signal meant for only one device. By its nature, an IR distribution system sends all of the signals to all of the devices. So, if two devices use the same code for a function, both devices will receive that code and will perform the function. This type of thing is mainly caused by manufacturers who are not privy to the codes of the other manufacturers. In addition, different manufacturers of remote controls use different protocols and different carrier frequencies to transmit these different infrared signals. As usual, the manufacturers love NOT getting together and creating standards. Unfortunately for us users, this sometimes makes using their products less of an easy and happy experience.


Problem #4: Hypersensitive Equipment 
Emitters can over-power the equipments IR sensor. Low power emitters and adjustable output emitters are available for equipment that is overloaded by standard or high power emitters. This is especially true for cable and satellite TV boxes.


Problem #5: Simplifies Distribution, Not Remote Control
The system does not eliminate the requirement for multiple remotes. An easy to use universal remote will provide an easy one touch control for a sequence of operations either by macros or simple commands.

so we must use the good materilas and components,and work out the right wiring method to make sure the ir cable will work on your devices.

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