ST-25G-SFP28-BD23-20

25G SFP28 BiDi BD23 Optical Transceiver — 20km over One Fiber

The Sate Optics ST-25G-SFP28-BD23-20 is a 25G SFP28 BiDi optical transceiver for single-fiber links up to 20km. It transmits at 1270nm and receives at 1330nm over one LC single-mode fiber, and deploys in matched pairs with its BD32 counterpart at the far end — doubling fiber capacity where strands are scarce.

Why This Module

• 20km over one fiber: bidirectional 1270nm TX / 1330nm RX on a single LC strand
• Matched-pair design: pair with the BD32 end to complete the link
• DDM monitoring: real-time optical power, temperature and voltage readings, 0~70℃ commercial range

• Compatible with your platform — coded for major networking platforms, including Cisco, Juniper, Arista, Huawei, Nokia, H3C and ZTE; 100% tested before shipment.

Key Specifications

Used In

• 25G aggregation switches and 5G transport platforms on fiber-constrained routes
• Cell-site and edge routers fed by a single fiber strand
• Fiber-scarce metro access networks doubling capacity per strand
• Typical platforms: Cisco Nexus 9300 / 9200 series, Arista 7060X / 7280R series, Juniper QFX5120 / EX4650, NVIDIA Spectrum SN2000 / SN3000 series and ConnectX NICs, Huawei CloudEngine 6866, Nokia 7250 IXR, H3C S6520X / S12500 and ZTE ZXR10 5960 series.

Not sure it fits your equipment? Request a Quote and tell us your switch model — we confirm compatibility before you order.

Where It Fits

• 5G fronthaul and midhaul spans up to 20km on one fiber
• Fiber-exhausted ducts and leased strands where a second fiber is not available
• Enterprise and campus links consolidating onto single-fiber runs

Every module is covered by a 3-year warranty with lifetime maintenance. Standard lead time is 3–7 days for most products, and samples are available for evaluation.