About Shenzhen C-Light Network Communication Co., Ltd. - Telecommunication Infrastructure/Equipments Supplier in China

Shenzhen, China hosts Shenzhen C-Light Network Communication Co., Ltd., which currently lists five active products in its catalogue. All items belong to the telecommunication infrastructure and equipment segment, specifically optical transceiver modules used in fiber‑optic networks. The product titles reference Cisco‑compatible SFP and SFP+ formats as well as a CWDM multi‑wavelength unit and an X2 10 Gb/s transceiver. In international trade these devices are classified under HS chapter 85, commonly under subheading 8517.62 for optical fiber transceivers. The supplier’s catalogue therefore covers both 1 Gb/s and 10 Gb/s small form‑factor pluggable technologies.

Product Range and Specialties of Shenzhen C-Light Network Communication Co., Ltd.

The catalogue comprises a GLC‑SX‑MM SFP module for multimode 850 nm operation, a GLC‑LH‑SM SFP module for long‑reach 1310 nm/1550 nm links, a CWDM SFP‑CWDM unit supporting multiple wavelengths, a SFP+‑10G‑SR transceiver for 10 Gb/s short‑reach, and an X2 10 Gb/s fiber‑optic transceiver. In the SFP market, buyers typically encounter specifications such as 1 Gb/s data rate, 850 nm or 1310/1550 nm wavelength, insertion loss ≤ 1.5 dB, return loss ≥ 55 dB, power consumption ≤ 0.5 W, and operating temperature from - 40 °C to +85 °C. SFP+ and X2 modules are rated for 10 Gb/s, often require 850 nm optics, have insertion loss ≤ 2 dB, and consume up to 1 W. Industry standards include IEC 61753‑1 for optical performance, TIA/EIA‑854 for SFP form factor, and ITU‑G.652 for single‑mode fiber compatibility. Typical packaging involves anti‑static bags placed in corrugated cartons suitable for sea or air freight.

Trade and Export Information - Shenzhen C-Light Network Communication Co., Ltd.

China is one of the world’s largest exporters of optical transceiver equipment, supplying the Asia‑Pacific, European Union and North American markets in substantial volumes. Export shipments of SFP and SFP+ modules usually fall under HS 8517.62, and customs authorities often require a commercial invoice, packing list and a test report confirming compliance with IEC or TIA standards. Buyers frequently request CE marking for EU entry, FCC ID for the United States, and RoHS declarations to verify restriction of hazardous substances. Logistics for these items commonly use 20‑ft or 40‑ft containers, with each carton holding 10 - 20 modules protected by moisture‑absorbing packets. Incoterms such as FCA Shenzhen, FOB Shanghai or CIF Los Angeles are typical for telecom equipment trade.

Sourcing from Shenzhen C-Light Network Communication Co., Ltd. - Buyer Guidance

When sourcing SFP or SFP+ modules from this supplier, request a datasheet that lists wavelength, data rate, return loss, insertion loss and temperature range. Ask for a third‑party test report - often from an accredited lab - showing compliance with IEC 61753‑1 and TIA/EIA‑854 specifications. Verify the presence of CE, FCC or RoHS certificates if the target market requires them, and confirm the packaging format matches your logistics plan. Minimum order quantities for optical modules can range from a single unit for sample testing to several hundred for production, so clarify the MOQ before placing an order. Lead times for Chinese manufacturers typically span 2 - 4 weeks after sample approval, with additional time for customs clearance and freight scheduling.

What optical transceiver formats are listed in the supplier’s catalogue?

The catalogue lists five formats: a Cisco‑compatible GLC‑SX‑MM SFP for 850 nm multimode, a GLC‑LH‑SM SFP for long‑reach 1310/1550 nm, a CWDM SFP module, a SFP+‑10G‑SR for 10 Gb/s short‑reach, and an X2 10 Gb/s fiber‑optic transceiver.

Which data rates are covered by the listed products?

The SFP entries support 1 Gb/s Ethernet or Fibre Channel, while the SFP+‑10G‑SR and X2 transceiver support 10 Gb/s Ethernet or Fibre Channel applications.

What typical wavelength specifications should a buyer verify?

For the GLC‑SX‑MM module the wavelength is 850 nm multimode; the GLC‑LH‑SM uses 1310 nm (long‑reach) and 1550 nm (short‑reach) single‑mode; the 10 Gb/s modules normally operate at 850 nm for short‑reach multimode links.

Which industry standards are commonly applied to these transceiver types?

Common standards include IEC 61753‑1 for optical performance, TIA/EIA‑854 for SFP form factor, and ITU‑G.652 for single‑mode fiber compatibility. RoHS and CE/FCC markings are also typical regulatory requirements.

What documentation is advisable to request before purchasing?

Buyers should request the product datasheet, a third‑party test report confirming insertion loss and return loss, and any applicable CE, FCC or RoHS certificates required for the destination market.

What are typical packaging and shipping methods for these modules?

Modules are usually packed in anti‑static bags, placed in sealed cartons with moisture‑absorbing packs, and shipped in 20‑ft or 40‑ft containers under Incoterms such as FCA Shenzhen or FOB Shanghai.

What is a common minimum order quantity for optical transceiver modules from Chinese suppliers?

Minimum order quantities often start at one unit for sample evaluation, but production orders generally begin at several hundred units, depending on the specific model and supplier policy.