Help with Fiber Optic Attenuators specifications:
Attenuator Type
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| Single Mode | An optical fiber that will allow only one mode to propagate. The fiber has a very small core diameter of approximately 8 µm. It permits signal transmission at extremely high bandwidth and allows very long transmission distances. | ||
| Multimode | A fiber optic cable which supports the propagation of multiple modes. Multimode fiber may have a typical core diameter of 50 to 100 µm with a refractive index that is graded or stepped. It allows the use of inexpensive LED light sources and connector alignment and coupling is less critical than single mode fiber. Distances of transmission and transmission bandwidth are less than with single mode fiber due to dispersion. | ||
| Single Mode / Multimode | Multiplexer can be used with both single mode or multimode cable types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Attenuator: | |||
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| Fixed | The attenuator has a fixed signal loss. | ||
| Variable | The signal loss of the attenuator can be changed. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Connector Type: | |||
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| Biconic | Biconic connectors have precision tapered ends for low insertion loss. | ||
| D4 | D4 connectors contain composite zirconia ceramic ferrules for durability. They feature a high-performance threaded mounting system and a keyed body for repeatability and intermateability. | ||
| ESCON | ESCON connectors derive their name from their original application, IBM's enterprise system connection (ESCON) for mainframe computers. ESCON connectors are similar to FDDI connectors, but contain a retractable shroud instead of a fixed shroud. ESCON connectors have two 2.55 mm ceramic ferrules and a robust strain relief design. | ||
| FC | FC connectors have an all-zirconia ceramic ferrule for durability, a high-performance threaded mounting system, and a keyed body for repeatability and intermateability. FC connectors are used primarily with single mode fibers and in telephone, instrumentation, and high-speed communication links. | ||
| FDDI | Fiber distributed data interface (FDDI) connectors are designed for use in FDDI networks, a LAN technology that uses dual, counter-rotating 100-Mbps fiber optic rings. FDDI connectors are duplex devices that contain two 2.5 mm ferrules. A fixed shroud protects the ferrules from damage. | ||
| LC | LC connectors include a polished, zirconia ceramic ferrule and a push / pull-style housing with a latching mechanism. LC connectors are half the size of standard fiber optic cable connectors. They are suitable for both public and private networks. | ||
| Loopback | Loopback connectors are used to test transceiver systems. | ||
| MTP | MTP connectors are threaded and well-suited for high density applications. | ||
| MT-RJ | Unlike other fiber optic connectors, MT-RJ connectors hold two fibers with a single ferrule. MT-RJ connectors are a variation of MT connectors, but use a smaller ferrule. | ||
| MU | MU connectors contain a ferrule with a diameter of 1.25 mm. Applications include high-speed data communications, voice networks, telecommunications, and dense wavelength division multiplexing (DWDM). MU connectors are also used in multiple optical connections and as a self-retentive mechanism in backplane applications. | ||
| SC | Subscription channel (SC) connectors are coaxial, medium-size devices with a constant 50Ω impedance and a frequency range of 0 - 11 GHz. They are larger than BNC connectors, but about the same size as Type N devices. | ||
| SMA | Subminiature-A (SMA) connectors are intended for use on semi-rigid cables in components. They directly interface the cable dielectric without air gaps. They are not intended for permanent connections. | ||
| ST | Straight tip (ST) connectors use a quick release, bayonet coupling that requires only a quarter turn to engage or disengage. Built-in keying provides repeatable performance because ST connectors always mate with a coupling bushing in the same way. ST connectors are used in FDDI cabling applications. | ||
| Other | Other unlisted fiber optic connectors. | ||
| Search Logic: | Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Attenuator Performance
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| Wavelength Range: | The wavelength range the attenuator was designed to operate in. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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| Attenuation Range: | The signal loss produced by the attenuator. For fixed attenuators this is a single value, for variable attenuators, this is a range. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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| Resolution: | This is a measurement of how sharp the attenuation level is. The higher the resolution, the sharper the distinction between attenuation levels. | ||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
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| Polarization Dependent Loss (PDL): | The polarization dependent signal loss produced by the attenuator. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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| Return Loss: | When expressed in dB is the ratio of reflected power to incident power. It is a measure of the amount of reflected power on a transmission line when it is terminated or connected to any passive or active device. | ||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
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Attenuator Features
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| Pigtail? | A short length of fiber attached to a fiber optic component. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Rack-Mountable? | Attenuator can be rack mounted for convenience and efficiency. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Polarization Maintaining? | Polarization of the incoming signal is preserved. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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Environment
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| Operating Temperature: | This is the full required range of ambient operating temperature. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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