LC Sc Upc APC Singlemode Multimode Fiber Optic Loopback for Optical Testing

• Customization: Available
• Application: Communication, Art, Sensor, Medicine, Probe
• Type: Sm / mm
• Connection Structure: Sc & LC
• Material Shape: Round Wire
• Allowed Lateral Pressure: 100(N/100mm)<1000(N/100mm)
• Allowed Tensile Strength: >10000N
• Core: Multicore
• Certification: RoHS, CE, ISO9001, VDE, CCC
• Brand: OEM
• Sheath Material: LSZH or TPU, UV-Resistant
• Fiber Type: Om1, Om2, Om3, Om4, Om5, OS2
• Insertion Loss: ≤ 0.30dB for Upc, ≤ 0.25dB for APC
• Return Loss: ≥ 55 dB (Upc) / ≥ 65 dB (APC)
• Material: ABS, 94V-0 Rated for Fire Resistance
• Protection Grade: -40°c to +85°c
• Connector Interface Standard: IEC 61754-7, RoHS, CE, ISO9001
• Transport Package: Box
• Specification: 48*48*30cm
• Trademark: HOLIGHT (OEM available)
• Origin: China
• HS Code: 8544700000
• Production Capacity: 20, 000PCS/Month

Product Description

Fiber Optic Loopback Module for Optical Testing

The LC & SC Fiber Optic Loopback Modules are essential tools used for transceiver testing, network diagnostics, and equipment verification. They route signals from the transmitter back to the receiver within the same optical module, allowing easy validation of optical port functionality without needing active equipment on the other end.

Applications:

Features:

Customization Options:

Optical transceiver module testing (SFP, QSFP)
Data center equipment verification
FTTH and telecom network diagnostics
Factory inspection and troubleshooting
Switch/router testing environments
Lab simulation and R&D applications
ONU/OLT port testing
Module production testing

Available in LC/SC UPC/APC for SM/MM applications
Precision ferrule ensures accurate test results
Molded body or tab-type for ease of use
Custom housing color, label, and logo
Low insertion loss and high return loss
Plug-and-play, reusable and cost-effective

Housing color and connector type
Label printing (barcode, logo, ID)
SM/MM selection
Packaging format (PE bag, tray, blister)
Pin length and casing structure

Feature Details

Packing & Delivery & Exhibition

Customer Reviews

"Great for quick SFP port checks—solid build and reliable."
— Adam K., Germany

"We ordered 1000 LC UPC loopbacks with logo. Fast production and perfect polish."
— Rajesh M., India

"Useful for test bench setups. Consistent loss readings."
— Luca P., Italy

"Quality product for our ONU/OLT diagnostics. Highly recommend."
— Juan C., Colombia

"HOLIGHT provided fast customization and flexible packaging."
— Sophia N., Singapore

Related Products

FAQ

Q1: What's the difference between UPC and APC loopbacks?
A1: UPC offers low insertion loss, while APC has higher return loss for sensitive optical systems.

Q2: Do you offer multimode and singlemode versions?
A2: Yes, both OM3/OM4 multimode and G652D/G657A1 singlemode are available.

Q3: Can we customize the housing color and logo?
A3: Absolutely. We support OEM printing and color customization.

Q4: Is the loopback device reusable?
A4: Yes, it's designed for multiple testing cycles and long-term use.