ST/UPC Male-to-Female Fixed Fiber Optic Attenuator

ST/UPC Male-to-Female Fixed Fiber Optic Attenuator

Product Type: ST/UPC Male-to-Female Fixed Fiber Optic Attenuator, passive plug-in type, 30dB attenuation (1-30dB customizable).

Key Specifications: Single-mode fiber, operating wavelength 1310/1550nm, ≤0.2dB insertion loss, ≥50dB return loss, -40~+75℃ operating temperature.

Core Functions: Precisely reduces optical power to keep receiver signals in optimal range, with low signal degradation and minimal back reflections.

Applications: Suitable for long-haul transmission, CWDM/DWDM networks, data centers, test equipment calibration and high-power link protection.

Features: Robust metal housing + zirconia ceramic ferrule, durable (≥1000 mating cycles), compatible with standard ST/UPC connectors.

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Product Description
Specification
Product Advantage

Product Description

1. Product Overview

This is a passive, plug-in type fixed fiber optic attenuator with ST/UPC male-to-female connectors. It is designed to precisely reduce optical power in single-mode fiber optic networks, ensuring the received signal is within the optimal operating range of the receiver.

Specification

2. Key Specifications

Parameter	Value
Connector Type	ST/UPC (Male-to-Female / Plug-in type)
Fiber Mode	Single-mode (SM)
Attenuation Value	30 dB (customizable from 1 dB to 30 dB)
Attenuation Accuracy	±1.0 dB (or ±10% of nominal value, whichever is greater)
Operating Wavelength	1310 nm, 1550 nm (or 1260~1620 nm for SM)
Insertion Loss (IL)	≤ 0.2 dB
Return Loss (RL)	≥ 50 dB (UPC)
Polarization Dependent Loss (PDL)	≤ 0.2 dB
Max. Optical Input Power	200 mW (500 mW optional)
Durability	≥ 1000 mating cycles
Operating Temperature	-40 °C to +75 °C
Storage Temperature	-40 °C to +85 °C
Humidity	5% to 95% (non-condensing)
Material	Zirconia ceramic ferrule, stainless steel housing
Compliance	IEC 61754-13, RoHS, Telcordia GR-1221

3. Applications

• Optical power leveling in long-haul transmission systems

• CWDM/DWDM networks

• CATV and data center infrastructure

• Test and measurement equipment calibration

• Preventing receiver overload in high-power links

4. Features

• Precision Attenuation: Stable and accurate power reduction across the operating wavelength range.

• Low Insertion Loss: Minimizes additional signal degradation.

• High Return Loss: Reduces back reflections for improved system performance.

• Robust Design: Metal housing and ceramic ferrule ensure mechanical stability and environmental durability.

• Interchangeability: Fully compatible with standard ST/UPC connectors and adapters.

Product Advantage

1

Precise Attenuation: Offers stable and accurate 30dB optical power reduction (1-30dB customizable) across the operating wavelength range.
2

Low Signal Degradation: Features ≤0.2dB insertion loss to minimize additional signal loss during operation.
3

Reduced Back Reflections: Boasts ≥50dB return loss (UPC) for improved overall system performance and stability.
4

Durable Construction: Adopts zirconia ceramic ferrule and stainless steel housing, supporting ≥1000 mating cycles.
5

Strong Compatibility: Fully interchangeable with standard ST/UPC connectors and adapters for wide application.
6

Wide Environmental Adaptability: Operates stably in -40°C to +75°C temperature and 5%-95% non-condensing humidity.