Passive Coupler
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XPCP – Passive Coupler Device 120/277 Vac XPCP – Passive Coupler Device 120/277 Vac… |
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UPB Passive Phase Coupler $78.09 The Passive Phase Coupler (PPC) is a small electronic device that is designed to enhance the communication reliability between devices that use the Universal Powerline Bus (UPB) method of communication (such as PulseWorx devices). It couples UPB communication signals generated on one phase of the powerline onto the other phase of the powerline. The PPC is designed to be used in a typical residenti… |
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Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*) $3.99 This 2-port passive splitter is a handy item when you need another work connection but do not have the time or the money to add another cable drop. Simply plug one device to your work area work port and another unit to the corresponding patch panel port. Now you can run two work devices over the same work cable. Sold individually this item must be used in pairs for each installation one on each en… |
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DisplayPort Female to Female Video Cable Coupler Extender $21.75 The Gefen DisplayPort Mate allows two separate DisplayPort cables to be connected together without losing the audio/video signal integrity. Increase the range of a DisplayPort monitor, or place a computer away from a DisplayPort monitor at a comfortable and convenient distance…. |
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IEC 2 Port Passive 10 or 100 Base TX Hub (Crossover Coupler) $14.85 IEC 2 Port Passive 10 or 100 Base TX Hub (Crossover Coupler)… |
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3 Way AV RCA Switch/Splitter $0.50 User friendly Switch / Splitter connects up to three (3) AV/RCA devices to a single TV. Directly exposed manual selector switch, no need to connect to power. Quick installation and convenient application…. |
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Cables Unlimited Premium 12-inch HDMI Cable Splitter (PCM-2275) $5.00 Our HDMI splitter cable provides a fast and easy way to simultaneously connect 2 HDMI displays to a single digital HDMI source. This 12″ cable is made from the highest quality components to provide crystal clear video transmissions. With support for high-resolution images, this cable is ideal for home theater applications…. |
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Microwave Filters, Impedance-Matching Networks, and Coupling Structures (Artech Microwave Library) $116.00 “The Bible of RF/microwave circuit design”. — RF Design Magazine… |
The main limit to performance in optical fiber is attenuation. Optical fiber attenuation, commonly known as loss, refers to the weakening or degradation of the optical signal as it passes through the glass fiber over the total distance of the fiber. Insertion loss and back reflection (return loss) are two tests that will enable a technician to correct attenuation problems on a fiber span.
Testing the fiber will show you where the weakened signals are located. Physical characteristics of the fiber, increased signal levels, amplification nonlinearity, inconsistent or ‘dirty’ connector end-faces as well as components on the fiber such as splices and connector terminations can all be a factor that cause increased attenuation. Attenuation (loss and back reflection) can be measured by using an Optical Power Meter and an Optical Light Source, or an Integrated Power Meter / Light Source for bidirectional testing (pair needed), or an Optical Time Domain Reflectometer (OTDR) and a Handheld Power Meter. (It is recommended to utilize a fiber reference jumper for all scenarios). When testing large fiber counts, data storage and the ability to download the information to a computer, is essential.
Using any of the above mentioned test scenarios; the light source will send a continuous wave signal, which simulates the operating wavelength of the emitter on the transmission equipment, down the fiber in question. At the far end of this fiber the power meter will be connected. The result of this test will be the loss of dB which is a relative reading and is equal to the transmitted power minus the received power. This test gives a numerical value for the power received. To obtain accurate loss measurements, a reference setting function must be available on the power meter. The setting of a reference requires a test jumper be connected to power meter, and also the light source and connected by a coupler. A reference reading is than taken, and than the power meter/light source are attached to the different ends of the cable under test. The resultant reading will be the loss or attenuation of the fiber under test only. Attenuation will differ depending on the direction in the fiber itself. Different results can be obtained when measuring from A to B and from B to A.
Back reflection (return loss) is the ratio of the light backscattered or reflected in the reverse direction of the forward direction of travel. Back reflection limits and/or degrades system performance. Unlike attenuation, which can be reduced by cleaning the connector interfaces etc., the effects of back reflection can only be resolved by re-polishing connector faces, or even changing the type of connector interfaces such as UPC or APC connector polishes.
While every effort should be made to keep attenuation to a minimum such as effective fusion splicing techniques, proper bend radius consideration, proper fiber end face maintenance techniques, etc., sometimes attenuation must be added to a circuit because the receiver on the network element can not accept the signal level. An attenuator is a passive device used to reduce the amplitude of a light signal without significantly changing the waveform itself. Primarily there are five different configurations of attenuators and each configuration has its own strength.
Hybrid Attenuator Plug, (Male to Female) or The Opposing Ends are a Different Connector Type. The hybrid style is ideal for reducing the intensity of a signal just prior to going into a receiver. This type of attenuator is typically available with similar connector ends with male/female configurations. They can also be available with different connector types on each end as well. The high performance characteristics of this type of attenuator make it the perfect choice for DWDM systems, CATV, EDFA, with Instrumentation and other highly amplified systems, LAN and Telecommunication Networks and high-speed data-com.
Patch Cord Attenuator. (In Line) (Attenuator is within a cable assembly) the attenuating fiber patch cord is ideal for high power applications and can be easily installed into fiber splice enclosures. The Patch Cord style offers simplified system set-up and reduced installation costs by combining the functions of patch cords and fixed attenuators in one convenient package.
Bulkhead Attenuator (Female to Female) The bulkhead style is ideal when two male connectors need to be mated with a fixed attenuator. Many times you will find this type at the patch panel. This type of attenuator is ideal for applications where return loss is not as critical and price is a consideration.
Loopback Attenuator. The loopback style is ideal for simulating losses associated with outside plant cable runs allowing BER testing on engineering and production test standards
Variable Optical Attenuated Jumper (VOA). The variable style is ‘in-line’ (patch cord) and allows the user to change the attenuation of the signal in the fiber as it is transmitted through the device, using a screw on the side of the housing. The maximum specified attenuation is achieved within 10 turns of the adjustment screw. VOAs are often used to balance the signal strengths in fiber circuits and for precisely attenuating an optical signal in order to evaluate the dynamic range of transmission equipment.
3 Step Attenuator. This attenuator is a completely passive device using bend radius of a 3mm jacketed cable as a means of attenuation without introducing back-reflection. It is designed to fit onto your existing cable assembly and it leaves no lasting effects on cable jacketing.
Fiber Solutions Inc. (FSI) is a WMBE Certified woman-owned stocking distributor of fiber optic products including cable, connectors, patch cables, termination supplies, splice closures, cleaning supplies, patch panels, hybrid adapters, stripping tools, crimp tools, polishing materials, and cleavers. Also available for immediate delivery is a complete offering of test equipment, microscopes, inspection products, etc. Fiber Solutions can offer complete fiber optic training courses in a standard or customized format to meet your requirements. FSI works hard to be your One-Stop shop for all your fiber optic requirements.
Visit us online at http://www.fibersolutionsonline.com
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XPCP – Passive Coupler Device 120/277 Vac XPCP – Passive Coupler Device 120/277 Vac… |
|
|
UPB Passive Phase Coupler $78.09 The Passive Phase Coupler (PPC) is a small electronic device that is designed to enhance the communication reliability between devices that use the Universal Powerline Bus (UPB) method of communication (such as PulseWorx devices). It couples UPB communication signals generated on one phase of the powerline onto the other phase of the powerline. The PPC is designed to be used in a typical residenti… |
|
|
Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*) $3.99 This 2-port passive splitter is a handy item when you need another work connection but do not have the time or the money to add another cable drop. Simply plug one device to your work area work port and another unit to the corresponding patch panel port. Now you can run two work devices over the same work cable. Sold individually this item must be used in pairs for each installation one on each en… |
|
|
DisplayPort Female to Female Video Cable Coupler Extender $21.75 The Gefen DisplayPort Mate allows two separate DisplayPort cables to be connected together without losing the audio/video signal integrity. Increase the range of a DisplayPort monitor, or place a computer away from a DisplayPort monitor at a comfortable and convenient distance…. |
|
|
IEC 2 Port Passive 10 or 100 Base TX Hub (Crossover Coupler) $14.85 IEC 2 Port Passive 10 or 100 Base TX Hub (Crossover Coupler)… |
|
|
3 Way AV RCA Switch/Splitter $0.50 User friendly Switch / Splitter connects up to three (3) AV/RCA devices to a single TV. Directly exposed manual selector switch, no need to connect to power. Quick installation and convenient application…. |
|
|
Cables Unlimited Premium 12-inch HDMI Cable Splitter (PCM-2275) $5.00 Our HDMI splitter cable provides a fast and easy way to simultaneously connect 2 HDMI displays to a single digital HDMI source. This 12″ cable is made from the highest quality components to provide crystal clear video transmissions. With support for high-resolution images, this cable is ideal for home theater applications…. |
|
|
Microwave Filters, Impedance-Matching Networks, and Coupling Structures (Artech Microwave Library) $116.00 “The Bible of RF/microwave circuit design”. — RF Design Magazine… |
