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Sebastian Orr
5
Perfect 1548.51nm precision for 120KM. Cisco equipment recognized these instantly. Stable link with zero errors. Ideal.
DWDM-SFP-4851-120-C
1000BASE-DWDM SFP 1548.51nm 120KM Cisco Compatible
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DWDM-SFP-4851-120-C
- Description:
- 1000BASE-DWDM SFP 1548.51nm 120KM Cisco Compatible
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- Orm
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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
 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 |
| Power Consumption | 1.5W | 2.5W | N/A | 1.5W | N/A |
| 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 |
| Height | 0.53 inches | 0.25 inches | N/A | 0.26 inches | N/A |
| Width | 2.22 inches | 0.5 inches | N/A | 0.78 inches | N/A |
| Depth | 0.33 inches | 1.0 inches | N/A | 1.34 inches | N/A |
| Weight | 0.1 lbs | 0.04 lbs | N/A | 0.07 lbs | N/A |
Reviews & Ratings
T
Tabitha Young
4
Exceptional 120KM performance. Strong signal and stable wavelength. Reliable, cost-effective solution for extreme-distance fiber infrastructure.
T
Theodore Vance
5
Solid integrity and easy 120KM deployment. Built for ultra-long reach. Channel remains clean under peak loads.
C
Cecilia Thorne
3
Reliable long-range optics. Zero issues since deploying 1548.51nm modules. Professional choice for DWDM network expansion.
L
Lyle Sterling
4
High-quality transceivers. Impressive accuracy ensures our multiplexing runs smoothly without interference. Great value and compatibility.
M
Marcella Frost
5
Stable and efficient 120KM modules. Delivers the performance required for core transport. Highly dependable for networking.
Questions & Answers
What is the DWDM-SFP-4851-120-C module?
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.
Which data rate does the DWDM-SFP-4851-120-C support?
This module supports a data rate of 1.25 Gbps, compliant with the 1000BASE-DWDM standard for Gigabit Ethernet networks.
What wavelength does this DWDM SFP use?
The module operates at a fixed ITU grid wavelength of 1548.51 nm, ideal for dense wavelength division multiplexing.
How far can the DWDM-SFP-4851-120-C transmit?
It reliably transmits up to 120 km over single-mode fiber (SMF-28) without the need for external amplification.