Cisco ONS-SI-2G-S1

Brand: Cisco | SKU: ONS-SI-2G-S1

The ONS-SI-2G-S1 is a 2 Gbps SONET/SDH SFP optical transceiver module designed for use with Cisco ONS platforms, supporting single-mode fiber connections over distances up to 10 km. It provides reliable, high-speed data transmission for metro and long-haul networking applications.

Refurbished Availability

Refurbished versions of the Cisco ONS-SI-2G-S1 are available, offering an excellent balance between performance and cost savings. Each refurbished unit undergoes comprehensive quality assurance and rigorous testing to meet or exceed original manufacturer specifications. By choosing refurbished equipment, customers benefit from reduced capital expenditure without compromising on reliability or performance.

Expert Repair Service

Comtek delivers expert repair services for the Cisco ONS-SI-2G-S1 and a wide range of similar optical transceiver modules. Our experienced engineers provide fast turnaround times and support multi-vendor environments, including Cisco, Juniper, Nokia, and more. This flexible service ensures network, telecoms, and critical infrastructure operators can quickly restore essential equipment and minimize downtime.

Global Presence

With repair centres and offices strategically located in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek offers global coverage and responsive support. Our international footprint allows us to deliver timely service, expert advice, and ongoing customer satisfaction to clients around the world.

Committed to Sustainability

Comtek is dedicated to supporting the circular economy by extending the lifecycle of telecom, network, and infrastructure equipment. Through refurbishment and repair, we help reduce e-waste, achieve significant carbon savings, and provide long-term value for our customers while promoting environmentally responsible business practices.

For more information or to request a quote, please visit our contact form. All refurbished and repaired equipment comes with warranty coverage for peace of mind.