• Cisco DWDM-XFP-31-90-40K 10GBASE-ER XFP module with dual LC ports
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Cisco

Cisco DWDM-XFP-31-90-40K | 10GbE XFP | 10GBASE-ER DWDM | ITU-T CH57 1531.90nm | 40km SMF | LC duplex | DOM

DWDM-XFP-31-90-40K

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Description

10G DWDM XFP transceiver engineered for extended reach links up to 40 km over single-mode fiber. It delivers 10GBASE-ER performance on a fixed ITU-T G.694.1 100 GHz channel with DOM for real-time diagnostics, and uses an LC duplex interface—ideal for metro DWDM systems or long dark-fiber spans.

Features

- Fixed ITU-T CH57 (1531.90 nm) DWDM wavelength
- 10GBASE-ER optics for up to 40 km over SMF
- LC duplex interface; hot-swappable XFP
- DOM for optical power and temperature monitoring
- MSA-compliant XFP for broad platform interoperability

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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Technical Specifications

FAQs

Technical Specifications

- Data rate: 10 Gbps (10GBASE-ER)
- Form factor: XFP (MSA-compliant), hot-swappable
- Wavelength / ITU channel: 1531.90 nm (CH57)
- DWDM grid: ITU-T G.694.1, 100 GHz spacing
- Optical reach: up to 40 km over OS2 single-mode fiber (link budget dependent)
- Optical interface: LC duplex
- Fiber type: Single-mode (SMF)
- Digital diagnostics (DOM): Supported
- Laser: C-band DWDM EML
- Operating temperature: 0 to +70 °C (commercial)
- Supported applications: 10GbE; OTU2/OC-192 where supported by host

FAQs

Q: Which DWDM channel is this module?
A: ITU-T 100 GHz grid, Channel 57 at 1531.90 nm.

Q: Does it require a DWDM MUX/DEMUX?
A: It is designed for DWDM systems with matching 100 GHz filters, but can run over dark fiber if the link budget supports it.

Q: What fiber and connector does it use?
A: Single-mode fiber (OS2 recommended) with LC duplex connectors.

Q: Is it hot-swappable and does it support DOM?
A: Yes, it is hot-swappable and supports digital diagnostics (DOM).

Q: Can it achieve 40 km without amplification?
A: Yes, on low-loss spans within the module’s link budget; actual distance depends on attenuation, splices, and patching.

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