LC/UPC Fiber Optic Attenuator for 5dB Singlemode Power Reduction
This LC/UPC Fiber Optic Attenuator provides a fixed nominal 5 dB reduction in optical signal power. Its male-to-female LC/UPC configuration fits a compatible singlemode connection where received optical power needs to be reduced without changing the connector interface.
Designed as a compact plug-in attenuator, it can be positioned between a compatible LC/UPC connector and an LC/UPC adapter in a distribution panel, cabinet, or test setup. The blue housing has a visible 5dB marking for identification. Match both connector polish and the required attenuation to the link before installation.
The supplier lists 1310 nm and 1550 nm as singlemode reference wavelengths, return loss of at least 50 dB, and a 500-cycle mating specification. Select this fixed value only after checking the optical power budget; 5 dB is not a universal setting for every fiber link.


| Connector Interface | LC/UPC | Attenuation | 5 dB (fixed, nominal) |
| Connector Configuration | LC male to LC female | Fiber Mode | Singlemode |
| Reference Wavelengths | 1310 / 1550 nm | Return Loss | ≥50 dB |
| Attenuation Accuracy | ±0.5 dB (supplier value at 1–5 dB) | Ferrule Material | Ceramic |
| Mating Cycles | 500 (supplier specification) | Operating Temperature | −40°C to +80°C |
| Housing Color | Blue | Installation Style | Plug-in, male-to-female |
Fixed Fiber Optic Attenuators: Selection and Applications
A fixed fiber optic attenuator reduces optical signal power by a specified amount. It is used when a receiver would otherwise see excessive optical power, or when a test or distribution link calls for controlled attenuation. Select the attenuation value from the actual optical link budget rather than connector color alone.

Fixed attenuators are available in different connector families, polish types and nominal dB values. Choose a model that matches the fiber mode, connector interface, and endface polish of the intended connection. The illustration uses a 5 dB LC-style unit as an example; other interface and attenuation options require their own matching product specifications.
Strict Quality Control System
| Consistent stable quality is our core competitiveness for fiber optic products. Our technical team has extensive experience in fiber optic communication. |
Quality Certification
| We control the quality of our products, including our strict qualification of manufacturers, quality control process and production technology, and compliance with certification and safety standards. At present, our products meet the industry standards and mainstream quality certification, such as ISO 9001, CE, RoHS, FCC, etc. |
![]() |
Our Advantages

Short Lead Time Fast Delivery

Professional Service Technical Support

Worry-Free Guarantee Shopping Satisfactorily

Premium Quality High stability
자주 묻는 질문
관련 제품
12 Fiber LC APC Pigtail, 1m G.652.D Single Mode
12 Fiber LC UPC Pigtail, 1m G.652.D Single Mode
듀플렉스 OM3 멀티모드 파이버 패치 코드 LC‑UPC에서 SC‑UPC, LSZH 재킷 10Gbps 고대역폭 전환 광 패저드, 데이터 센터 LAN 케이블링용
Duplex OS2 9/125 Single‑Mode Fiber Patch Cord ST‑UPC to ST‑UPC, LSZH Jacket Twist‑Lock Connector Optical Jumper for Telecom Cabinet Wiring
LC APC Field Assembly Mechanical Connector, Simplex OS1/OS2 Single Mode Pre-Polished Ferrule Quick Connector for FTTH
Cat5e 이더넷 케이블
Cat6 이더넷 케이블
Cat6a 이더넷 케이블
Cat8 케이블
벌크 이더넷 케이블
커넥터 및 잭
케이블 정리
OS2 싱글모드 심플렉스
OS2 싱글모드 듀플렉스
OM3 멀티모드 파이버
OM4 멀티모드
OM2 멀티모드
OM5 멀티모드
MTP/MPO 케이블
패치 케이블 맞춤
루프백 어댑터
광섬유 연결
청소용품 및 도구
DisplayPort 케이블
미니 디스플레이포트 케이블
HDMI 케이블
HDMI 미니/마이크로 케이블
DVI 케이블
VGA 케이블
오디오 케이블
썬더볼트 케이블
USB-C 케이블
USB 3.0 케이블
전원 케이블
SATA 케이블
시리얼 케이블














