LC to LC UPC Simplex OS2 Single Mode Fiber Optic Test Cable with 10dB Attenuator
For Tanzanian site work, correct product selection should be followed by careful transport, connector inspection and retention of the fiber records. LC to LC UPC Simplex OS2 Single Mode Fiber Optic Test Cable with 10dB Attenuator combines a precision fixed attenuator with a test-grade patch cord in one unit. It exists for one recurring job: proving that a long-reach transceiver works at its specified receive level without deploying the full fiber path. Plug it between the supplied module and the test set, and the 10 dB element reproduces the connection loss the optics were designed to tolerate.
Product Highlights
- Attenuating Material-ion Doped Fiber
- 1310/1550nm Wavelength Singlemode Attenuators
- Precision Polishing for Reduced Back Reflection
- Standard Fixed Attenuation Value of 10dB
- Applied for CWDM, DWDM, Test Equipment, CATV Systems, Point to Point Systems, etc.
Specifications
| Attenuation | 10dB |
|---|---|
| Return Loss | ≥45dB |
| Operating Temperature Range | -25 to 70°C (-13 to 158°F) |
| Storage Temperature Range | -40 to 85°C (-40 to 185°F) |
| Application(1) | Specification(1) |
| Attenuation:15dB | Just what I needed, worked great. |
Why links need attenuation at all
Optical links are engineered with a power budget: the transmitter launches, the fiber and connectors consume, and the receiver expects what remains inside a defined window. Short routes, dense wavelength plans and high-power transmitters can all deliver too much light, and an overloaded receiver distorts exactly like an overloaded amplifier - errors appear on a connection that tests perfectly on loss alone. A fixed attenuator brings the received power back inside the window, and the connection behaves as designed.
Ion-doped fiber as the attenuating element
The cleanest way to attenuate light is to absorb it inside the fiber itself. Ion-doped fiber attenuators do exactly that: a short section of doped glass absorbs a calibrated fraction of the optical power and converts it to negligible heat. Because the attenuation happens inside the core, the light that emerges keeps its mode profile and the device adds virtually no reflectance. The alternatives - air gaps, offsets and misaligned ferrules - all trade loss against reflections and modal noise, which is why precision attenuators abandoned them. For Tanzanian site work, keep this requirement with the field checklist and the delivered product records.
Attenuator test cables for transceiver qualification
Long-reach transceivers are specified to work over tens of kilometers of fiber; the test bench has none. The attenuator test cable reproduces the path loss in a one-meter unit: a calibrated 10 dB element sits inline between two LC connectors, and the supplied module under test sees exactly the receive level it would see at the end of the designed connection. Loop the transmitter back through the supplied cable, and the full operating range is verified before the supplied module ever leaves the lab.
Attenuation in testing and calibration
Beyond live links, attenuators are the reference instruments of the fiber lab. Receiver sensitivity is measured by adding loss until errors appear; power meters are calibrated against known attenuation values; a new transceiver type is qualified across its receive range before installation. Fixed attenuators incorporate the stable reference points, and variable attenuators sweep the range between them. Both must hold their rated figure over wavelength and temperature, which is what separates a calibrated device from a decorative one.
Handling and cleaning attenuators
An attenuator is a connector with optics inside, and connector rules apply: keep the caps on until the moment of mating, clean every end face before insertion, and never mate a contaminated ferrule into the device - the dirt transfers to the attenuator end face and the next connector that touches it. Store spare units capped and bagged, and record which connection each installed unit serves so replacement orders match the original figure.
Selecting the right attenuator
Four decisions define the order: the attenuation figure should be matched to the connection calculation, the connector being used series should be matched to the port or the patch cords, the polish grade should be matched to the plant, and the body style - plug or inline - must suit the installation. Fixed values cover permanent installations; the variable instruments cover testing; the test cable covers transceiver qualification. Getting all four right at order time is what turns a small component into a dependable part of the connection.
Factory Quality Control and Testing
Every attenuator is optically verified before packing: the attenuation figure is measured at the operating wavelengths and checked against its rated tolerance, return loss is verified to its polish grade, and the connector being used end faces are inspected for scratches and contamination. Units ship capped and bagged.
Purchase and Factory Support
Refer to this attenuator by attenuation figure, connector series, polish grade and body style when purchasing a quotation. For values or configurations outside the listed options - non-standard dB figures, mixed connector pairings or project packaging - send the specification with the request and the factory will ensure the manufacturable specification. For Tanzanian deliveries, the order details should include any site identification needed by the installation team.
