3FE25785AB Nokia Compatible 1G SFP BiDi 40km SMF Transceiver

Reaching 40km over a single strand of single-mode fiber, the 3FE25785AB is a 1G BiDi SFP configured as the BX-D (downstream) end of a two-part link. It uses a simplex LC connector to run both directions on that one fiber and hands off its downstream role to an upstream unit at the opposite site. Coded for Nokia platforms, it registers as a native module, comes online without configuration, and exposes real-time diagnostics through DDM.

• Form Factor: SFP
• Data Rate: 1G
• Fiber Type: SMF
• Reach: 40km
• Connector: Simplex LC
• OEM Equivalent: 3FE25785AB

Compatibility: Documented OEM compatibility (Nokia published compatibility documentation): this module is accepted in 1G SFP ports on the 7210 SAS Series, 7250 IXR Series, 7360 ISAM FX / Lightspan FX Series, 7705 SAR Series, and 7750 SR Series. This module follows Nokia's published compatibility matrix; for your exact line card or OS release, email 10.4@tenfouroptics.com and we'll confirm fit.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

MSA-compliant and bench-verified for diagnostics before shipment. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock — ships same or next business day.