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The Cisco SFP transceiver GLC-LH-SM is a single-mode fiber optic module designed for 1.25 Gbps data transmission over distances up to 10 kilometers using a 1310 nm wavelength. It features a duplex LC connector and complies with the SFP MSA and Cisco proprietary specifications for interoperability. The module is hot-swappable and compatible with Cisco Catalyst, ISR, and Nexus platforms.
This transceiver operates within industrial temperature ranges and meets RoHS environmental standards. The optical output power is typically between -9.5 dBm and -3 dBm, with receiver sensitivity down to -23 dBm. It uses a 1310 nm DFB laser and PIN photodiode, common in long-haul single-mode deployments. The module is designed for use with G.652 standard single-mode fiber and supports digital diagnostics monitoring (DDM).
Primary buyers include data center operators, telecom carriers, and enterprise network managers deploying point-to-point links or uplinks. Packaging is anti-static with OEM labeling. Trade terms are negotiated directly; MOQ is not stated and must be confirmed. Incoterms such as FOB Shenzhen or EXW are typically offered, with payment via T/T. Lead time depends on stock availability and is not guaranteed.
| Model | GLC-LH-SM |
| Data Rate | 1.25 Gbps |
| Wavelength | 1310 nm |
| Max Distance | 10 km over single-mode fiber |
| Connector Type | Duplex LC |
| Fiber Type | Single-mode (G.652) |
| Transmitter Type | DFB laser (typical for GLC-LH-SM) |
| Receiver Type | PIN photodiode (standard for this module) |
| Operating Temperature | 0°C to 70°C (commercial grade, typical) |
| DDM Support | Yes (digital diagnostics monitoring per SFF-8472) |
Shenzhen C-Light Network Communication Co., Ltd. is located in Nanshan District, Shenzhen, China, with a listed factory address in the Liuxiandong Industrial Park. The company is classified as an imported supplier with Harbor tier verification. No company history, certifications, or workforce size are disclosed in the listing.
The supplier sources and resells Cisco-compatible SFP transceivers. There is no indication of in-house manufacturing, testing, or R&D capability. The listing does not state whether units are new, refurbished, or third-party compatible. Buyers must confirm compatibility with specific Cisco hardware models and request test reports for optical performance before purchase.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering, confirm the transceiver’s exact compatibility with your Cisco switch or router model. Request a compatibility list and test report showing DDM readings and optical performance. Avoid units without clear labeling or that lack a supplier-specific serial number, as these may be untested or counterfeit.
Lead time and Incoterms must be confirmed directly with the supplier. Standard terms include FOB Shenzhen or EXW, with packaging in anti-static bags inside sealed cartons. Payment is typically via T/T, but buyers should request a proforma invoice with full Incoterm definition, delivery schedule, and insurance coverage details before payment.
Upon receipt, inspect for physical damage, missing labels, or mismatched serial numbers. Use a compatible Cisco device to insert the transceiver and verify DDM data and link stability. Retain packaging and documentation for warranty claims. Request a certificate of compliance for RoHS and SFF-8472 standards, as these are critical for enterprise deployments.
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When importing Cisco Sfp Transceiver Glc from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
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