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DWDM SFP 1539.77nm provides precise ITU alignment and stable long-distance operation.
DWDM-SFP-3977=
DWDM SFP 1539.77NM 100GHZ ITU
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DWDM-SFP-3977=
DWDM SFP 1539.77NM 100GHZ ITU
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DWDM-SFP-3977= is a high-performance SFP transceiver designed for dense wavelength division multiplexing applications. It supports a 1G data rate with an LC connector and is engineered for long-range transmission over single-mode fiber, making it ideally suited for critical telecom and data center deployments.
This precise DWDM module meets industry standards by supporting both Ethernet and Fibre Channel protocols while maintaining a compact SFP form factor. Its robust design, optimized physical dimensions, and reliable performance make it a perfect fit for enterprise networks, metro systems, and long-haul communications.
DWDM-SFP-3977= price is $2,654.39, a 63% saving from the Cisco list price of $7,174.00. DWDM-SFP-3977= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for DWDM-SFP-3977= for additional pricing. Browse the full Sfp+ For 3000 Series series or explore all Cisco products.
Telecom operators extending a 40 km metro backbone leverage the DWDM-SFP-3977 (1539.77 nm, 100 GHz ITU) to add a dedicated 100 Gbps channel over existing single-mode fiber. This plug-and-play SFP enables rapid capacity scaling via 80-channel DWDM multiplexing, delivering cost-efficient bandwidth growth, sub-1 ms latency, and improved network ROI.
Enterprises linking two data centers 10 km apart deploy the DWDM-SFP-3977 (1539.77 nm, 100 GHz ITU) transceiver on dark fiber to establish a 100 Gbps ring. This solution streamlines real-time data replication with sub-millisecond latency, maximizes existing fiber utilization, and reduces OPEX by avoiding expensive wavelength upgrades.
Financial institutions replicating mission-critical data to a secondary site 80 km away install the DWDM-SFP-3977 (1539.77 nm, 100 GHz ITU) in a resilient DWDM ring. The pluggable 100 G interface ensures uninterrupted data mirroring, accelerates failover under 50 ms, and enforces regulatory compliance through high-availability, fiber-delivered connectivity.
To get the detailed certification, please go to the Compliance Center.
 DWDM-SFP-3977= |  DWDM-SFP-5817= |  DWDM-SFP-3268= |  DWDM-SFP-5655= |  DWDM-SFP-5575= | |
|---|---|---|---|---|---|
| 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 | 10G | 10G | 1G |
| Depth | 1.0 inches | 0.69 inches | 0.80 inches | 2.24 inches | N/A |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Height | 0.5 inches | 0.55 inches | 0.70 inches | 0.67 inches | N/A |
| 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 | 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 | 2.8W | 2.5W | 3.5W | 3.2W | N/A |
| Product Name | DWDM-SFP-3977= | DWDM-SFP-5817= | DWDM-SFP-3268= | DWDM-SFP-5655= DWDM SFP Transceiver | DWDM-SFP-5575= |
| 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 | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | 1528 - 1563 nm | 1550 nm | 1550 nm | 1565 nm | 1550 nm |
| Weight | 0.1 lbs | 0.2 lbs | 0.08 lbs | 0.1 lbs | N/A |
| Width | 0.7 inches | 0.98 inches | 0.50 inches | 0.66 inches | N/A |
DWDM SFP 1539.77nm provides precise ITU alignment and stable long-distance operation.
Low-latency and reliable performance for metro and backbone networks.
Easy integration with existing DWDM infrastructure.
Professional-grade SFP with minimal signal loss.
Durable and consistent for critical optical networks.
The DWDM-SFP-3977= is a 100 GHz ITU-compliant SFP DWDM optical transceiver operating at 1539.77 nm for long-distance single-mode fiber networks.
This module is ideal for metro, long-haul, and telecom DWDM networks requiring high channel density and precise wavelength alignment.
It supports up to 80 km on standard G.652 single-mode fiber and can reach 120 km with inline optical amplification.
It uses a duplex LC connector, ensuring easy and secure termination on single-mode fiber.