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DWDM SFP 1548.51nm delivers minimal latency and consistent performance for high-density optical links.
DWDM-SFP-4851=
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DWDM SFP 1548,51 nm SFP (100 GHz ITU grid)
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DWDM-SFP-4851=
- Description:
- DWDM SFP 1548,51 nm SFP (100 GHz ITU grid)
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- Brand:
- Cisco
- GTIN:
- 816678019301
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DWDM-SFP-4851= Overview
DWDM-SFP-4851= is a high-performance SFP transceiver module engineered for DWDM applications. It supports a 1G data rate and features an LC connector design, making it ideal for long-range transmissions over single-mode fiber in environments such as data centers, enterprise networks, and telecom applications.
DWDM-SFP-4851= comes in a compact SFP form factor with standardized physical dimensions to ensure seamless integration into various network platforms. It supports protocols including Ethernet and Fibre Channel while delivering reliable performance under demanding operating conditions.
DWDM-SFP-4851= price is is available on request. Get immediate quote.
Request bulk order quote for DWDM-SFP-4851= for additional pricing. Browse the full Sfp+ For 3000 Series series or explore all Cisco products.
DWDM-SFP-4851= 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
- 80 km
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Fiber
- Power Consumption
- 1W
- 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=
- Height
- 0.66 inches
- Width
- 1.33 inches
- Depth
- 4.4 inches
- Weight
- 0.2 lbs
DWDM-SFP-4851= Use Case
Regional ISP Network Capacity Expansion with DWDM-SFP-4851 (1548.51 nm, 100 GHz ITU Grid)
A regional Internet Service Provider facing exponential bandwidth growth deploys the DWDM-SFP-4851 10 Gbps transceiver (1548.51 nm, 100 GHz ITU grid, ITU-T G.694.2 compliant) to add new wavelengths over its existing dark-fiber. This plug-and-play solution delivers incremental 10 Gbps per channel, reduces CAPEX by up to 40 % through infrastructure reuse, and accelerates service rollout for scalable, future-proof network performance.
Hyperscale Cloud Data Center Interconnect with DWDM-SFP-4851
A hyperscale cloud provider establishes a resilient 200 km data center interconnect (DCI) link using the DWDM-SFP-4851 10 Gbps DWDM SFP module (1548.51 nm, 100 GHz ITU grid). Optimized for low dispersion and high optical budget, it ensures consistent 10 Gbps throughput, sub-5 ms end-to-end latency, and simplifies operations by standardizing on hot-swappable DWDM optics, achieving SLA-grade reliability and rapid provisioning.
Low-Latency Financial Trading Link Deployment with DWDM-SFP-4851
A global financial institution connects two metropolitan trading hubs via a dedicated DWDM channel using the DWDM-SFP-4851 10 Gbps SFP transceiver (1548.51 nm, 100 GHz ITU grid). The module delivers sub-2 µs deterministic latency, stringent wavelength stability, and hot-swap flexibility—enabling microsecond-level trade execution, 99.999 % network availability, and a strategic edge in high-frequency trading markets.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| DWDM-SFP-4851= |  DWDM-SFP-3425= |  DWDM-SFP-3033= |  DWDM-SFP-3268= |  DWDM-SFP-5898= | |
|---|---|---|---|---|---|
| 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 | 10G | 1G | 10G | 10G |
| Depth | 4.4 inches | 1.20 inches | 0.75 inches | 0.80 inches | 1.71 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Height | 0.66 inches | 0.36 inches | 0.35 inches | 0.70 inches | 0.55 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 80 km | 80 km | 80 km | 80 km |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 1W | 3.5W | 2.8W | 3.5W | 3.5W |
| Product Name | DWDM-SFP-4851= | DWDM-SFP-3425= | DWDM-SFP-3033= | DWDM-SFP-3268= | DWDM-SFP-5898= |
| 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, Fibre Channel | Ethernet, Fibre Channel | Ethernet, SONET | Ethernet | Ethernet, SONET |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | 1550 nm | 1550 nm | 1550nm | 1550 nm | 1310 nm |
| Weight | 0.2 lbs | 0.06 lbs | 0.20 lbs | 0.08 lbs | 0.1 lbs |
| Width | 1.33 inches | 0.87 inches | 0.63 inches | 0.50 inches | 1.14 inches |
Reviews & Ratings
Q
Quinn Barrett
4
Professional-grade optics, stable under heavy traffic and long-distance deployments.
R
Rhea Frost
5
Easy deployment with reliable performance across ITU wavelength grids.
S
Sawyer Hayes
5
Durable SFP, low error rates, high throughput.
T
Talia Steele
5
Excellent module for mission-critical DWDM networks.
Questions & Answers
What is DWDM-SFP-4851=?
DWDM-SFP-4851= is a 100 GHz ITU-T G.694.1 grid SFP transceiver operating at 1548.51 nm, designed for high-capacity DWDM single-mode fiber links.
What transmission distance does the DWDM-SFP-4851= support?
It supports up to 80 km over standard SMF-28 single-mode fiber without inline amplification or dispersion compensation.
Which fiber type is required for the DWDM-SFP-4851=?
The module requires ITU-G.652 single-mode fiber (SMF) with an LC duplex connector for optimal performance.
What data rates are supported by DWDM-SFP-4851=?
It supports synchronous line rates from 100 Mbps up to 11.1 Gbps, including 1.25 GbE, 10 GbE, SONET OC-192 and SDH STM-64.
What connector type does the DWDM-SFP-4851= use?
This SFP transceiver uses a standard LC duplex connector compatible with most DWDM patch panels and equipment.
Is the DWDM-SFP-4851= hot-swappable?
Yes. The DWDM-SFP-4851= supports hot-swap capability for seamless installation or removal without powering down the host device.
Which ITU channel corresponds to 1548.51 nm?
1548.51 nm corresponds to channel 51 on the 100 GHz ITU-T G.694.1 DWDM grid.
What is the typical transmit and receive power range?
Transmit power ranges from –5 dBm to +2 dBm, and receiver sensitivity is –24 dBm maximum to ensure a reliable power budget.
What are the operating temperature and humidity specifications?
Operating temperature: 0 °C to +70 °C; storage temperature: –40 °C to +85 °C; relative humidity: 5%–95% non-condensing.
Which network equipment is the DWDM-SFP-4851= compatible with?
It is fully compatible with SFP-compliant switches and routers from Cisco, Juniper, HP, Dell, Huawei and other major vendors.
What is the power consumption of this DWDM SFP?
Typical power consumption is under 1 W, making it energy-efficient for large-scale DWDM deployments.
Which network protocols does the DWDM-SFP-4851= support?
It supports 1 G/10 G Ethernet, 8 G Fibre Channel, SONET OC-192, SDH STM-64 and CPRI applications.
How do I install the DWDM-SFP-4851= module?
Align the module with the host port, gently insert until the latch clicks, then verify link status via your switch or router interface.
How can I monitor the performance of the transceiver?
Use the SFP’s Digital Diagnostic Monitoring (DDM/DOM) via an SFP-aware host to read real-time TX/RX power, temperature, voltage and bias current.
What warranty is provided with the DWDM-SFP-4851=?
The module includes a one-year manufacturer’s warranty that covers defects in materials and workmanship.
What is the mean time between failures (MTBF) for DWDM-SFP-4851=?
The design MTBF exceeds 1,000,000 hours, ensuring high reliability for carrier-grade DWDM networks.
How is the DWDM-SFP-4851= packaged and shipped?
It ships in ESD-safe trays or antistatic bags; bulk, OEM and customized packaging options are available upon request.