![]() ![]() So, how about the 2X2 splitter? In this case, a lot of data are involved sometimes but it needs to be tested. But for upstream, we have to move the light source 32 times and record the results on the meter. Just set the light source up on the input and use the power meter and reference cable to test each output port in turn. 1x32 splitter, this test method can also be used. For the other direction from all the output ports, we should reverse the direction of the test.įor other 1xN optical splitters, e.g. Similarly, to test the loss to the second port-move the receive launch cable to the other port and read the loss from the meter. Attach the light source launch to the splitter and attach a receive launch reference cable to the output and the optical power meter, and then measure the loss. First, attach a launch reference cable to the optical light source of the proper wavelength (some splitters are wavelength dependent), and then calibrate the output of the launch reference cable with the optical power meter to set the 0dB reference. Now, we test the simplest 1x2 optical splitter as the picture shown below. Thus, the principle of optical splitter loss testing is to follow the same directions for a double-ended loss test. Whether an optical splitter is combining signals in the upstream direction or dividing signals in the downstream direction, it still introduces the same attenuation to an optical input signal. The attenuation of signal through an optical splitter is symmetrical which means it is identical in both directions. How to Test Optical Splitter Loss With Optical Power Meter & Light Source?īefore discussing the details of splitter loss testing, here is a fact that we should know about it. The insertion loss includes the splitting loss and excess loss. Insertion loss is the ratio of the optical power launched at the given input port of the splitter to the optical power from any single output port. It assures that the total output is never as high as the input.Ģ. Excess loss is the ratio of the optical power launched at the input port of the splitter to the total optical power measured from all output ports. Signal loss within a system is expressed using the decibel (dB), which is a measure of signal power attenuation.ġ. Here is a table of typical losses for splitters. Insertion loss testing of the optical splitter is very important to ensure compliance to the optical parameters of the manufactured splitter in accordance with the GR-1209 CORE specification. ![]() The following picture shows an optical splitter used in a PON system. ![]() Optical splitters play an important role in FTTH (Fiber to the Home) networks by allowing a single PON network interface to be shared among many customers. When the splitter has two inputs and four outputs, it is called a 2x4 splitter. Likewise, there are 1x4 splitter, 1x8 splitter, 1x16 splitter, 1x32 splitter, and so on. For example, a splitter with a 1x2 certain ratio configuration means that it has one input and two outputs. Optical splitters, including FBT (Fused Biconical Taper) couplers and PLC (Planar Lightwave Circuit) splitters, are common passive optical devices that split the fiber optic light into several parts by a certain ratio. In this tutorial, we are going to introduce optical splitter loss testing with optical power meter and light source. There is something different between testing an optical splitter and a patch cable although both of them use an optical power meter and light source to test. *Note – All connected audio devices must support the same audio format (PCM/Dolby Digital/DTS etc.Optical splitters are usually used in passive optical networks (PONs) to distribute fiber to individual homes or businesses. Repeat step 2 and utilize Output Port “B” & “C” on the JTDSP0103 for connecting additional audio devices.Connect an optical audio cable to Output Port “A” on the JTDSP0103 and to the Digital Audio Input port of your audio device (Wireless Headphones Transmitter/AV Receiver/Soundbar).Connect an optical audio cable to the Digital Audio Output port of your source device and to the “In” port of the JTDSP0103 ( In the connection diagram above, the Smart TV is the source device).Incorporate your new soundbar, AV receiver or wireless headphones into your existing setup easily with the JTDSP0103. The JTDSP0103 / JTD-42 1-Input, 3-Output Optical Audio Splitter allows users to send their optical spdif/toslink audio signal to three separate destinations simultaneously. How To Guide: JTDSP0103 Optical Audio Splitter Setup ![]()
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