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Yolanda Thorne
5
Perfect DWDM wavelength. Stable and consistent throughput. Excellent hardware compatibility.
ONS-SC-2G-38.9-C
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SFP- OC-48/STM16, 1538.98nm Cisco ONS Compatible
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ONS-SC-2G-38.9-C
- Description:
- SFP- OC-48/STM16, 1538.98nm Cisco ONS Compatible
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ONS-SC-2G-38.9-C Overview
ONS-SC-2G-38.9-C is a compact Small Form-factor Pluggable (SFP) optical transceiver engineered to deliver a 2G data rate for reliable network connectivity. Designed with an SC connector interface, it operates over single-mode fiber and is optimized for long-range transmissions—reaching up to 38.9 km—making it an ideal solution for Ethernet-based data centers, enterprise networks, and telecom applications.
This transceiver features a proven 1310 nm wavelength performance and a sturdy, compact SFP form factor that facilitates easy integration into a variety of networking hardware. Its robust design, alongside support for standard Ethernet protocols and compatibility with major vendors such as Cisco, Juniper, Huawei, and Arista, ensures dependable operation in mission-critical environments.
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ONS-SC-2G-38.9-C Specifications
- Product Type
- Transceiver
- Form Factor
- SFP
- Data Rate
- 2G
- Connector Type
- SC
- Wavelength
- 1310 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 38.9 km
- Supported Protocols
- Ethernet
- 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
- ONS-SC-2G-38.9-C
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| ONS-SC-2G-38.9-C |  ONS-SC-2G-32.6-C |  ONS-SC-2G-35.8-C |  ONS-SC-2G-34.2-C |  ONS-SC-2G-47.7-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 2G | 2G | 2G | 2G | 2G |
| Connector Type | SC | SC | SC | SC | SC |
| Wavelength | 1310 nm | 1310 nm | 1550 nm | 1550 nm (C-band) | 1310 nm |
| Transmission Distance | Long-Range | Short-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 38.9 km | 10 km | 35.8 km | 34.2 km | 47.7 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | N/A | N/A | 3.5 W | N/A | N/A |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | -40 to 85°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 | N/A | Cisco, Juniper, Huawei, Arista |
| Product Name | ONS-SC-2G-38.9-C | ONS-SC-2G-32.6-C | ONS-SC-2G-35.8-C | ONS-SC-2G-34.2-C | ONS-SC-2G-47.7-C Optical Transceiver |
| Height | N/A | N/A | 0.30 inches | N/A | N/A |
| Width | N/A | N/A | 0.60 inches | N/A | N/A |
| Depth | N/A | N/A | 1.80 inches | N/A | N/A |
| Weight | N/A | N/A | 0.20 lbs | N/A | N/A |
Reviews & Ratings
Z
Zebulon Sterling
5
Reliable STM16 connectivity. Stable signal with strong margins. Seamless integration.
A
Ariadne Vance
5
Consistent 2.5Gbps throughput. Robust and recognized instantly. No downtime observed.
B
Bastian Ross
5
Exceptional signal quality. Built for mission-critical infrastructure. Matches OEM perfectly.
C
Cosima Holt
4
Professional 1538.98nm module. Handles distances easily. Rock-solid 2.5G speeds.
D
Dashiell Beaumont
5
Steady and reliable. Integrated perfectly into ONS 15454. Excellent spectral stability.
E
Elowen Whitaker
5
Excellent power margins. Stable 2.5G links with zero errors. High-performance hardware.
Questions & Answers
What is the ONS-SC-2G-38.9-C SFP-OC-48/STM16, 1538.98nm Cisco ONS Compatible transceiver?
The ONS-SC-2G-38.9-C is a hot-swappable SFP optical transceiver designed for OC-48/STM16 SONET/SDH applications at 1538.98 nm, fully compatible with Cisco ONS platforms.
Which network protocols does this SFP module support?
This SFP module supports OC-48 for SONET and STM-16 for SDH, delivering data at 2.488 Gbps in carrier-grade transport networks.
What is the optical wavelength of the ONS-SC-2G-38.9-C transceiver?
The transceiver operates at a fixed wavelength of 1538.98 nm, ensuring optimal performance in DWDM or single-wavelength SONET/SDH links.
What is the maximum transmission distance of this SFP?
Over standard single-mode fiber (SMF), it supports link budgets up to 80 km, depending on system margin and fiber attenuation.
Which fiber type and connector are required?
The module uses single-mode fiber with an SC simplex connector for straightforward deployment in existing SMF infrastructures.
Is the ONS-SC-2G-38.9-C hot-swappable?
Yes. It is fully hot-swappable, allowing insertion or removal without powering down your network equipment.
Is this SFP compatible with Cisco ONS series equipment?
Yes. It is engineered and tested for full interoperability with Cisco ONS 15454 and 15454 MSTP platforms.
Does the transceiver support Digital Diagnostics Monitoring (DDM)?
Yes. It complies with SFF-8472 to provide real-time monitoring of optical power, temperature, voltage, and laser bias.
What operating temperature range does this module support?
The module operates reliably from 0 °C to 70 °C (32 °F to 158 °F) in standard commercial environments.
What laser safety classification applies to this SFP?
It is designated as a Class 1 laser product, meeting IEC 60825-1 standards for safe operation.
How do I install the ONS-SC-2G-38.9-C transceiver?
Align the transceiver with the SFP port, gently slide until it latches, then connect the SC fiber patch cable to complete installation.
How can I verify that the transceiver is functioning correctly?
Use your switch or router’s diagnostic commands (e.g., show interfaces transceiver) to confirm link status, optical power, and DDM metrics.
What is the typical Mean Time Between Failures (MTBF)?
The transceiver offers an MTBF exceeding 2 million hours under normal operating conditions for maximum network reliability.
What is the power consumption of the ONS-SC-2G-38.9-C module?
Power consumption is less than 1 W, optimizing energy use and minimizing thermal load in high-density chassis.
What troubleshooting steps should I take for signal loss?
Inspect and clean SC connectors, verify fiber continuity, check DDM readings for power levels, and confirm port configuration matches OC-48/STM16 settings.
Does the module come with a warranty?
Yes. It includes a one-year limited warranty covering manufacturing defects and performance compliance.
Can I use this SFP module interchangeably with other vendors’ transceivers?
While mechanically compatible, mixing different vendors’ modules may affect interoperability and support; using Cisco-qualified optics is recommended for guaranteed performance.