SFP Optical Module MaxLink ML-S3155-20 WDM BiDi 20 km, 1x LC connector, single‑fiber

SFP optical module MaxLink ML-S3155-20 WDM BiDi 20 km, 1x LC connector, single‑fiber is a compact transceiver for single‑fiber bidirectional links. Designed in the standard SFP form factor, this MaxLink module enables wavelength division multiplexing over one optical fiber to transmit and receive data simultaneously. It supports point‑to‑point connections and can be installed in compatible SFP ports of switches, routers and media converters to extend fiber Ethernet links up to 20 km.

Advantages

The MaxLink ML-S3155-20 reduces fiber infrastructure needs by enabling bidirectional communication on a single fiber using WDM BiDi technology. Its SFP form factor ensures straightforward hot‑plug installation in common network devices. With support for links up to 20 km and a single LC connector, the module is suitable for compact installation scenarios where preserving fiber count and rack space is important. The design is compatible with typical Ethernet and fiber extension applications.

Suitable for

• Point‑to‑point fiber links over a single fiber
• Extending Ethernet connections between network devices up to 20 km
• Media converters and devices with SFP slots requiring WDM BiDi operation
• Network setups where minimizing fiber cabling is required

Key specifications

• Form factor: SFP (Small Form‑factor Pluggable)
• Transmission technology: WDM BiDi (bidirectional over single fiber)
• Maximum link distance: 20 km
• Connector type: 1x LC
• Fiber type: single‑fiber single‑mode (used for bidirectional WDM)
• Typical applications: Ethernet extension, media conversion, point‑to‑point links

How to use

Insert the MaxLink ML-S3155-20 module into an available SFP slot of a compatible switch, router or media converter while the device is powered on or according to the host device manual for hot‑swap operation. Connect the single LC fiber to the module and ensure the remote end uses the complementary WDM BiDi transceiver with the matching wavelengths. Configure link settings on the host devices if required by the network (for example speed and duplex settings) and verify link status via the host device's management interface or LEDs.

Usage recommendations

Use this WDM BiDi SFP module with single‑mode fiber and an appropriate mate transceiver at the remote end. Verify compatibility with the host device's SFP specifications and the required wavelength pairing for bidirectional operation. For reliable performance, follow standard fiber handling practices: keep connectors clean, avoid tight bends, and verify link quality after installation.