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DWDM-SFP-4851-120-C
1000BASE-DWDM SFP 1548.51nm 120KM Cisco Compatible
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DWDM-SFP-4851-120-C is an SFP transceiver module built for DWDM systems that delivers a 1G data rate over LC fiber connectors, enabling long-range transmission up to 120 km on single-mode fibers. It is engineered to support Ethernet protocols in high-performance enterprise, data center, and telecom network applications.
Optimized for reliable DWDM channel operation, this compact SFP form factor module meets rigorous physical dimension standards for rack-mounted optical networking gear. Its design makes DWDM-SFP-4851-120-C ideal for metro networks and critical infrastructure deployments requiring precise wavelength control and energy-efficient performance.
DWDM-SFP-4851-120-C price is is available on request. Get immediate quote.
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| DWDM-SFP-4851-120-C |  DWDM-SFP-3819-C |  DWDM-SFP-4532-120-C |  DWDM-SFP-4692-C |  DWDM-SFP-4294-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 10G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1528 nm | 1550 nm | 1550 nm | 1550 nm |
| Transmission Distance | Long-Range | Long-Range | Extended-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 120 km | 80 km | 120 km | 80 km | 80 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | DWDM-SFP-4851-120-C | DWDM-SFP-3819-C | DWDM-SFP-4532-120-C | DWDM-SFP-4692-C | DWDM-SFP-4294-C |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Perfect 1548.51nm precision for 120KM. Cisco equipment recognized these instantly. Stable link with zero errors. Ideal.
Exceptional 120KM performance. Strong signal and stable wavelength. Reliable, cost-effective solution for extreme-distance fiber infrastructure.
Solid integrity and easy 120KM deployment. Built for ultra-long reach. Channel remains clean under peak loads.
Reliable long-range optics. Zero issues since deploying 1548.51nm modules. Professional choice for DWDM network expansion.
High-quality transceivers. Impressive accuracy ensures our multiplexing runs smoothly without interference. Great value and compatibility.
Stable and efficient 120KM modules. Delivers the performance required for core transport. Highly dependable for networking.
The DWDM-SFP-4851-120-C is a 1000BASE-DWDM SFP transceiver operating at 1548.51 nm with a reach of up to 120 km and full Cisco compatibility.
This module supports a data rate of 1.25 Gbps, compliant with the 1000BASE-DWDM standard for Gigabit Ethernet networks.
The module operates at a fixed ITU grid wavelength of 1548.51 nm, ideal for dense wavelength division multiplexing.
It reliably transmits up to 120 km over single-mode fiber (SMF-28) without the need for external amplification.
Yes, the DWDM-SFP-4851-120-C is fully interoperable with Cisco switches and routers that accept 1000BASE-DWDM SFPs.
For best results, use standard single-mode fiber (SMF-28) with an ITU-T G.652 compliant profile.
Yes, it adheres to MSA specifications and works seamlessly in any 1000BASE-DWDM–compliant platform.
The transceiver uses a hot-pluggable Small Form-Factor Pluggable (SFP) housing for easy installation and removal.
It features an LC duplex connector, standard for single-mode DWDM applications.
The DWDM-SFP-4851-120-C consumes less than 1 W in typical operation, ensuring energy-efficient performance.
It supports an industrial temperature range from –40 °C to +85 °C for reliable field deployment.
Yes, it provides real-time monitoring of optical power, temperature, voltage, and laser bias current via the SFF-8472 interface.
We offer a limited lifetime warranty and 24/7 technical support for all DWDM-SFP-4851-120-C modules.
The module is Class 1 laser certified (IEC 60825-1), ensuring safe operation under all conditions.
Simply hot-plug the unit into any compatible SFP slot on your switch or router and verify link status in the device’s management interface.
You can order directly from our website or through authorized channel partners listed in our global distributor network.
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