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DWDM-SFP-4851-120-C
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- 1000BASE-DWDM SFP 1548.51nm 120KM Cisco Compatible
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DWDM-SFP-4851-120-C Overview
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.
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DWDM-SFP-4851-120-C Specifications
| Product Type | Transceiver |
| Form Factor | SFP |
| Data Rate | 1G |
| Connector Type | LC |
| Wavelength | 1550 nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 120 km |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | 1.5W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | DWDM-SFP-4851-120-C |
| Height | 0.53 inches |
| Width | 2.22 inches |
| Depth | 0.33 inches |
| Weight | 0.1 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 1G | 1G | 1G | 10G | 1G |
| Depth | 1.0 inches | N/A | 1.34 inches | N/A | 0.33 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Height | 0.25 inches | N/A | 0.26 inches | N/A | 0.53 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 80 km | 80 km | 120 km | 120 km |
| 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 |
| Power Consumption | 2.5W | N/A | 1.5W | N/A | 1.5W |
| Product Name | DWDM-SFP-3819-C | DWDM-SFP-4294-C | DWDM-SFP-4692-C | DWDM-SFP-4532-120-C | DWDM-SFP-4851-120-C |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Extended-Range | Long-Range |
| Wavelength | 1528 nm | 1550 nm | 1550 nm | 1550 nm | 1550 nm |
| Weight | 0.04 lbs | N/A | 0.07 lbs | N/A | 0.1 lbs |
| Width | 0.5 inches | N/A | 0.78 inches | N/A | 2.22 inches |
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Questions & Answers
Q
What is the DWDM-SFP-4851-120-C module?
A
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.
Q
Which data rate does the DWDM-SFP-4851-120-C support?
A
This module supports a data rate of 1.25 Gbps, compliant with the 1000BASE-DWDM standard for Gigabit Ethernet networks.
Q
What wavelength does this DWDM SFP use?
A
The module operates at a fixed ITU grid wavelength of 1548.51 nm, ideal for dense wavelength division multiplexing.
Q
How far can the DWDM-SFP-4851-120-C transmit?
A
It reliably transmits up to 120 km over single-mode fiber (SMF-28) without the need for external amplification.
Q
Is this SFP module Cisco compatible?
A
Yes, the DWDM-SFP-4851-120-C is fully interoperable with Cisco switches and routers that accept 1000BASE-DWDM SFPs.
Q
Which fiber type is required for optimal performance?
A
For best results, use standard single-mode fiber (SMF-28) with an ITU-T G.652 compliant profile.
Q
Can I use this module in a non-Cisco DWDM system?
A
Yes, it adheres to MSA specifications and works seamlessly in any 1000BASE-DWDM–compliant platform.
Q
What is the module’s form factor?
A
The transceiver uses a hot-pluggable Small Form-Factor Pluggable (SFP) housing for easy installation and removal.
Q
What optical interface does it feature?
A
It features an LC duplex connector, standard for single-mode DWDM applications.
Q
What is the power consumption of the SFP?
A
The DWDM-SFP-4851-120-C consumes less than 1 W in typical operation, ensuring energy-efficient performance.
Q
What is the operating temperature range?
A
It supports an industrial temperature range from –40 °C to +85 °C for reliable field deployment.
Q
Does it include a Digital Diagnostics Monitoring (DDM) feature?
A
Yes, it provides real-time monitoring of optical power, temperature, voltage, and laser bias current via the SFF-8472 interface.
Q
What warranty and support are provided?
A
We offer a limited lifetime warranty and 24/7 technical support for all DWDM-SFP-4851-120-C modules.
Q
Is laser safety certification included?
A
The module is Class 1 laser certified (IEC 60825-1), ensuring safe operation under all conditions.
Q
How do I install the DWDM-SFP-4851-120-C?
A
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.
Q
Where can I purchase the DWDM-SFP-4851-120-C?
A
You can order directly from our website or through authorized channel partners listed in our global distributor network.
