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SFP (Small Form Factor Pluggable) is a compact, hot-swappable transceiver module that converts electrical signals into optical signals (and vice versa), enabling long-distance communication between devices. One of the main advantages of SFP modules is their hot-swappable nature, which allows them to be inserted or removed without powering down network devices.
800G OSFP optical modules are already familiar to many. With 800G optical modules widely used in data centers by the end of 2025, they have become a focal point in the optical communication industry, attracting widespread attention.
A 10G DAC high-speed cable consists of a dual-core copper wire and SFP+ connectors at both ends, allowing direct connection to active devices. DAC cables include passive and active DACs, both of which can directly transmit electrical signals via copper wires. The difference lies in that the former can transmit without signal modulation, while the latter incorporates electronic components within the optical transceiver to enhance the signal.
A BIDI optical module is a single-fiber bidirectional optical module, or BiDi (Bidirectional). Conventional modules are dual-fiber modules (connected by two optical fibers), with two fiber ports at the interface: a transmit port (TX) and a receive port (RX). BIDI modules, however, are single-fiber modules with only one fiber port. Different optical signals are transmitted and received within a single fiber; therefore, BIDI optical modules must be used in pairs. Visually, a BIDI module has only one port and uses only one optical fiber for connection.
It adopts single-fiber bidirectional transmission (WDM) technology, requiring only one fiber to complete bidirectional data transmission, saving 50% of fiber resources; it features a high-density design, using a small-size QSFP28 package, compatible with high-density switch ports; it has strong compatibility, supporting interconnection with mainstream brand switches, allowing for smooth upgrades to existing networks; it supports transmission distances from 100m to 80km, suitable for solutions in data centers and telecom operators.
