800G/400G/200G/100G Loopback

Loopback

C-LIGHT Loopback is a critical testing and protection mechanism in optical networks, enabling signal quality verification, fault localization, and service recovery by redirecting signals from the transmitter back to the receiver. Core modes include local (device-level), remote (link-level), and protocol (data-layer) loopback, supporting rapid diagnostics for optical modules, OTN/SDH equipment, and Ethernet ports. Key strengths lie in non-intrusive detection, millisecond-level fault isolation, and multi-layer coordination, ideal for 5G fronthaul and data center interconnects. Advancements focus on automated intelligent loopback, AI-driven anomaly analysis, and integration with protection systems (e.g., OLP) to enhance self-healing capabilities and operational efficiency.

3-year warranty

Long term maintenance

Technical Support

Professional free technical guidance

100% detection

Each module is 100% tested

Spot stock

Always in stock, short delivery time

Technical Support

Tel：+86 158 1857 3751

Online Consultation

Product Details

Support & Service

Quality Inspection

Quality Certification

Product Details

Form Factor	Part No.	Fiber Type	Data Rate	Wavelength	Distance	Connector	Case Temperature	Note
OSFP	CLOSFP800GLP	Loopback	800G	-		-	Com./Ind.
QSFPDD	CLQSFPDD800GLP	Loopback	800G	-		-	Com./Ind.
QSFPDD	CLQSFPDD400GLP	Loopback	400G	-		-	Com./Ind.
QSFP112	CLQSFP400GLP	Loopback	400G	-		-	Com./Ind.
QSFP56	CLQSFP200GLP	Loopback	200G	-		-	Com./Ind.
QSFP28	CLQSFP100GLP	Loopback	100G	-		-	Com./Ind.
QSFP+	CLQSFP40GLP	Loopback	40G	-		-	Com./Ind.
SFP28	CLSFP25GLP	Loopback	25G	-		-	Com./Ind.
SFP+	CLSFP10GLP	Loopback	10G	-		-	Com./Ind.

Support&Service

Customization

- 01 -

Customization

C-LIGHT R&D and sales provide various personalized product customization services for customers in different industries.

C-LIGHT ensures good product quality and quality assurance through a series of effective measures.

C-LIGHT provides professional pre-sales and after-sales services, including product certification qualifications, product reports, and free technical support.

C-LIGHT provides an excellent production environment to ensure that products can meet customer needs.

- 04 -

Quality inspection

●100% of products pass initial test, final test and factory inspection.

●3-step quality control management process.

●100% complete implementation of customer order quality requirements.

●100% guarantee of customer product data information security.

Quality certification

Please contact us to download the certification certificate.

Quality certification

Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

Any question?
We are here ready for you.

Get expert advice quickly,Meet your requirements in all aspects
Phone：+86 158 1857 3751
Email : sales@c-light.com

: Call