Cisco ONS-SI-155-L1 Compatible OC-3/STM-1 LR-1 SFP Transceiver
Brand: Cisco (OEM) / Compatible Vendors · SKU: ONS-SI-155-L1 · MPN: ONS-SI-155-L1 · Category: Networking
The ONS-SI-155-L1 is a Small Form-factor Pluggable (SFP) transceiver module designed for use in OC-3/STM-1 SONET/SDH Networks. Compatible versions provide 155Mb/s throughput up to 40km over single-mode fiber (SMF) using a 1310nm wavelength. These modules are generally MSA compliant and feature a Duplex LC connector. They often include Digital Diagnostic Monitoring (DDM) support for real-time performance monitoring. Compatible industrial grade versions can support an operating temperature range from -40°C to 85°C. The original Cisco part number specification is SFP - OC3/STM1 LR, L-1.1, 1310 nm, ITEMP (Industrial Temperature). Compatible versions may be based on a different base product, such as 155M-SFP-40D, and encoded for Cisco compatibility.
Specifications
| Connector | Duplex LC |
|---|---|
| Data Rate | 155 Mbps (OC-3/STM-1) |
| Fiber Type | Single-Mode Fiber (SMF) |
| Wavelength | 1310 nm |
| Form Factor | SFP |
| DDM/DOM Support | Yes |
| Maximum Distance | Up to 40 km (LR-1) |
| Temperature Range (Industrial) | -40°C to +85°C |
| Warranty | Compatible versions often carry a Lifetime Replacement Warranty. |
| Weight | N/A |
| Dimensions | SFP Form Factor |
Key Features
This is an SFP transceiver module for SONET/SDH networks supporting OC-3/STM-1 rates (155Mbps) over long reach (LR-1) distances up to 40km on single-mode fiber. It uses a 1310nm wavelength and is identified by the Cisco part number ONS-SI-155-L1.
Technical Deployment Advisory
Target Personnel
Network Security Admins
Infrastructure Fit
Leaf-Spine Data Center Fabrics
"The ONS-SI-155-L1 is built for the professional requirements of Leaf-Spine Data Center Fabrics. It supports management features essential for Network Security Admins overseeing enterprise fabrics."
Frequently Asked Questions
Is this product genuine OEM?
Yes, this Cisco ONS-SI-155-L1 Compatible OC-3/STM-1 LR-1 SFP Transceiver (ONS-SI-155-L1) is 100% genuine Cisco (OEM) / Compatible Vendors hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
What warranty is included?
This Cisco ONS-SI-155-L1 Compatible OC-3/STM-1 LR-1 SFP Transceiver includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
How long does shipping take?
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Can I return this product?
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Is the Cisco ONS-SI-155-L1 Compatible OC-3/STM-1 LR-1 SFP Transceiver compatible with my system?
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the ONS-SI-155-L1.
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