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DWDM-SFP-3977-120-C
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- 1000BASE-DWDM SFP 1539.77nm 120KM Cisco Compatible
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DWDM-SFP-3977-120-C Overview
DWDM-SFP-3977-120-C is an SFP transceiver designed for dense wavelength division multiplexing (DWDM) systems, offering a 1G data rate and an LC connector interface. Built to support Ethernet and Fibre Channel protocols, this compact module features precise physical dimensions and is optimized for use in data centers, enterprise networks, and telecom applications.
This DWDM SFP module delivers long-range performance over single-mode fiber, achieving extended transmission distances suitable for high-density optical networks. Its robust design and compatibility with major vendors make it an ideal solution for network operators seeking reliable, high-performance connectivity in DWDM environments.
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DWDM-SFP-3977-120-C Specifications
| Product Type | Transceiver |
| Form Factor | SFP |
| Data Rate | 1G |
| Connector Type | LC |
| Wavelength | 1550nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 80 km |
| Supported Protocols | Ethernet, Fibre Channel |
| Network Interface | Fiber |
| Power Consumption | N/A |
| 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-3977-120-C |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
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Product Comparison Table
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| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | N/A | Cisco, Juniper, Huawei, Arista |
| Connector Type | LC | LC | LC | RJ45 | LC |
| Data Rate | 1G | 4G | 2G | 1G | 100G |
| Depth | N/A | 0.50 inches | 2.22 inches | N/A | 1.1 inches |
| Fiber Type | Single-mode | Multi-mode | Single-mode | N/A | Multi-mode |
| Form Factor | SFP | SFP | SFP | SFP | QSFP+ |
| Height | N/A | 0.55 inches | 0.33 inches | N/A | 0.7 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 300 meters | 10 km | 100 meters | 100 meters |
| Network Interface | Fiber | Fiber | Fiber | Ethernet | 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 | N/A | 1.5 W | 3.0W | 2.5W | 3.5W |
| Product Name | DWDM-SFP-3977-120-C | DS-SFP-FC4G-SW-C | ONS-SI-2G-L2-C | JX-SFP-1GE-T-C | XBR-000240-C QSFP Transceiver Module |
| 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 | Fibre Channel | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Transmission Distance | Long-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Wavelength | 1550nm | 850 nm | 1310nm | N/A | 1310 nm |
| Weight | N/A | 0.1 lbs | 0.06 lbs | N/A | 0.15 lbs |
| Width | N/A | 3.17 inches | 0.53 inches | N/A | 1.0 inches |
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Questions & Answers
Q
What is the DWDM-SFP-3977-120-C 1000BASE-DWDM SFP module?
A
The DWDM-SFP-3977-120-C is a Cisco-compatible 1000BASE-DWDM small form-factor pluggable transceiver operating at 1539.77 nm for single-mode fiber links up to 120 km.
Q
What data rate does the DWDM-SFP-3977-120-C support?
A
This module supports a 1.25 Gbps nominal data rate compliant with IEEE 802.3ah 1000BASE-DWDM standards.
Q
Which wavelength does this DWDM SFP use?
A
The DWDM-SFP-3977-120-C operates at the ITU channel 39 wavelength of 1539.77 nm for ultra-dense channel spacing.
Q
What is the maximum transmission distance of the DWDM-SFP-3977-120-C?
A
The DWDM-SFP-3977-120-C reliably transmits up to 120 km over ITU-T G.652 single-mode fiber.
Q
Which fiber type is required for this SFP?
A
This 1000BASE-DWDM SFP is optimized for ITU-T G.652 single-mode fiber with a nominal core diameter of 9 μm.
Q
Is the DWDM-SFP-3977-120-C compatible with Cisco devices?
A
Yes, it is fully compatible with Cisco switches and routers that support 1000BASE-DWDM SFP modules.
Q
Does the DWDM-SFP-3977-120-C support digital diagnostics monitoring (DDM)?
A
Yes, it features digital diagnostics monitoring to report real-time temperature, optical power, and voltage via I²C interface.
Q
What is the operating temperature range for this module?
A
The module operates between 0 °C and 70 °C (standard commercial range) to ensure reliable performance in data-center environments.
Q
How much power does the DWDM-SFP-3977-120-C consume?
A
Typical power consumption is less than 1 W, making it energy-efficient for high-density deployments.
Q
What is the MTBF of the DWDM-SFP-3977-120-C?
A
This SFP has a mean time between failures (MTBF) exceeding 1,000,000 hours under normal operating conditions.
Q
Is the DWDM-SFP-3977-120-C MSA compliant?
A
Yes, it conforms to the SFP MSA, ensuring standardized mechanical, electrical, and optical specifications.
Q
Is this SFP module hot-swappable?
A
Yes, the DWDM-SFP-3977-120-C supports hot-plug installation and removal without system shutdown.
Q
How do I install the DWDM-SFP-3977-120-C module?
A
Insert the module into an empty SFP slot until it clicks into place, then configure your interface for 1000BASE-DWDM on your device.
Q
What are the typical applications for this DWDM SFP?
A
It is ideal for long-haul metro and core networks, DWDM channel add/drop multiplexing, and high-capacity data center interconnects.
Q
What warranty covers the DWDM-SFP-3977-120-C?
A
This module includes a one-year limited warranty against manufacturing defects and premature failure.
Q
What is the return and exchange policy for this SFP?
A
Customers can return or exchange the module within 30 days of receipt, subject to our standard return merchandise authorization procedures.
Q
How can I verify the DWDM-SFP-3977-120-C is compatible with my equipment?
A
Check your device’s hardware guide or software compatibility matrix for support of Cisco-compatible 1000BASE-DWDM SFPs at 1539.77 nm.
