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Cisco

Cisco ONS-SI-155-SR-MM | 155 Mb/s SFP, SONET OC-3/SDH STM-1 (S-1.1 SR), 1310 nm, up to 2 km MMF, LC duplex

SKU:ONS-SI-155-SR-MM

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Description

Short‑reach SONET/SDH OC‑3 (STM‑1) SFP for legacy transport and access networks. Operates at 1310 nm over multimode fiber with LC duplex interface and hot‑swap installation. Ideal for OC‑3 aggregation, add/drop multiplexers, and SDH edge nodes requiring MMF connectivity.

Features

- OC-3/STM-1 short-reach optics for multimode fiber
- 1310 nm wavelength with LC duplex interface
- SFP MSA form factor for hot-swap deployment
- Cost-effective connectivity for legacy SONET/SDH nodes
- Class 1 laser safety compliant

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this module for SONET/SDH or Ethernet?
A: It is designed for SONET/SDH OC-3 (STM-1) circuits, not for Ethernet standards.

Q: What fiber type is required?
A: This SR-MM variant is intended for multimode fiber with LC connectors.

Q: Can it operate over single-mode fiber?
A: It is optimized for MMF. For SMF spans, use an SMF SR/IR/LR variant matched to the required reach.

Q: Does it support digital diagnostics (DOM/DDM)?
A: DOM/DDM support can vary by optical design and host platform; check platform release notes for confirmation.

Technical Specifications

- Form factor: SFP (hot-swappable)
- Line rate: 155.52 Mb/s (SONET OC-3 / SDH STM-1)
- Base standard: ITU-T G.957 S-1.1 (Short Reach)
- Wavelength: 1310 nm
- Fiber type: Multimode fiber (50/125 or 62.5/125 µm)
- Reach: up to 2 km (MMF, link budget dependent)
- Connector: LC duplex
- Optical safety: Class 1 laser product
- Application: SONET/SDH transport, access, ADM, legacy aggregation
- Operating temperature: Commercial (approx. 0°C to +70°C)

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