Cisco

Cisco SFP-25G-BX40U-I | 25G SFP28 | 25GBASE-BX40 | 1270Tx/1330Rx | 40km | LC simplex | iTemp

SKU:SFP-25G-BX40U-I

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Description

Industrial-temperature 25G BiDi ER transceiver for 40 km single-fiber links. Uses complementary wavelengths and LC simplex to deliver long-reach performance while halving fiber usage. Pair with the opposite-wavelength unit at the far end.

Features

- Single-fiber 25G connectivity reduces fiber usage
- 40 km reach suitable for metro/aggregation
- Industrial temperature tolerance
- Hot-swappable design
- DOM support for proactive monitoring

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: Which module should be used at the peer end?
A: Use the complementary D unit (1330Tx/1270Rx) at the peer to complete the BiDi pair.

Q: Can I run this on multimode fiber?
A: No. BX/ER BiDi optics require single-mode fiber.

Q: Is link budget sufficient for 40 km without amplification?
A: Designed for up to 40 km under typical SMF attenuation and splice loss budgets; verify your plant loss and enable FEC for margin.

Technical Specifications

- Data rate: 25 Gbps
- Form factor: SFP28
- Type: BiDirectional ER (single-fiber)
- Base standard: 25GBASE-BX40
- Wavelengths (U unit): Tx 1270 nm / Rx 1330 nm
- Reach: up to 40 km over single-mode fiber (9/125 μm)
- Connector: LC simplex
- Digital diagnostics (DDM/DOM): Supported
- Operating temperature (industrial): -40 to +85 °C
- Recommended: Enable FEC on 25G ports where available

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