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Cisco

Cisco SFP-CWDM-1570-70 | 1G CWDM SFP | 1570 nm | 70 km | LC SMF | 1000BASE-CWDM | DOM

SKU:SFP-CWDM-1570-70

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Description

Gigabit CWDM SFP for long‑reach single‑mode links. Fixed 1570 nm ITU‑T CWDM wavelength for use with passive CWDM mux/demux systems, duplex LC interface, and integrated digital diagnostics (DOM) for real‑time monitoring. Ideal for 1G Ethernet backhaul or distribution where fiber is scarce.

Features

- Long‑reach 70 km CWDM link on 1570 nm
- Conserves fiber using CWDM multiplexing
- DOM for proactive monitoring and troubleshooting
- Standards‑based SFP for broad switch/router compatibility
- Low power, hot‑swappable operation

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: Does this require a CWDM mux/demux?
A: It can run point‑to‑point, but is typically used with a passive CWDM mux/demux to combine multiple wavelengths on one fiber pair.

Q: What fiber and connector are needed?
A: Single‑mode fiber (OS2/G.652) with LC duplex connectors.

Q: Is it compatible with Gigabit Ethernet ports?
A: Yes, it supports 1G (1000BASE) ports that accept SFP optics and CWDM wavelengths.

Q: Does it support DOM?
A: Yes, it provides digital diagnostics monitoring for power, temperature, and link metrics.

Q: Is this a BiDi module?
A: No. It is duplex (Tx/Rx on separate fibers) and uses LC duplex connectors.

Technical Specifications

- Form factor: SFP (hot‑swappable, MSA compliant)
- Data rate: 1 Gbps (Gigabit Ethernet/1G FC compatible)
- Optical standard: 1000BASE‑CWDM (SMF)
- Wavelength: 1570 nm (ITU‑T G.694.2 CWDM grid)
- Optical reach: up to 70 km over single‑mode fiber (OS2/ITU‑T G.652)
- Connector: LC duplex
- Fiber type: Single‑mode
- Tx type: DFB laser; Rx type: PIN
- Digital diagnostics: DOM/DDM (SFF‑8472)
- Operating temperature: 0 to 70 °C (commercial)
- Applications: CWDM multiplexed metro/access links, campus backhaul
- Compliance: RoHS

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