About This Part
The Alcatel 3AL81921AA is a high-performance Compact Small Form-Factor Pluggable (CSFP) optical transceiver, specifically engineered for Gigabit Ethernet applications. It belongs to Alcatel's extensive line of optical transceivers, crucial for modern fiber optic networks. While the CSFP form factor often allows for higher port density or dual-channel operation, this specific `BX10-D` configuration functions as a single-fiber bi-directional module. Its primary function is to convert electrical signals into optical signals and vice-versa, facilitating 1 Gigabit per second (Gbps) data transmission over single-mode fiber (SMF). The `1000BASE-BX10-D` designation indicates its compliance with Gigabit Ethernet standards, supporting a data rate of 1.25 Gbps (for 1 Gbps Ethernet with 8b/10b encoding). The 'BX10' signifies bi-directional operation over a single strand of fiber, achieving a reach of up to 10 kilometers. The 'D' typically denotes the downstream wavelength, meaning it transmits at a longer wavelength (e.g., 1490 nm) and receives at a shorter wavelength (e.g., 1310 nm), requiring a corresponding 'BX10-U' module at the other end. This single-fiber capability significantly reduces fiber infrastructure requirements, utilizing a standard LC simplex connector for its optical interface. This transceiver is typically installed in switches, routers, and other network equipment equipped with CSFP or SFP ports. It supports a wide range of Alcatel network platforms, as well as multi-vendor systems that adhere to industry-standard CSFP interfaces. Telecommunication operators, Internet Service Providers (ISPs), and data center providers utilize this module for various applications. It is particularly valuable in Fiber-to-the-Home/Building (FTTH/FTTB) deployments, metropolitan area networks (MANs), and enterprise campus networks where fiber conservation is critical. The single-fiber bi-directional operation addresses the challenge of limited fiber availability, allowing network architects to double the capacity of existing fiber infrastructure without laying new cables. It provides a cost-effective solution for extending Gigabit Ethernet services over moderate distances, effectively replacing or upgrading older multi-fiber SFP modules in scenarios where single-fiber operation is desired or necessary, offering a more efficient and streamlined cabling solution. Revo Distribution Limited specializes in providing high-quality used and refurbished telecom and data centre equipment, including the Alcatel 3AL81921AA. For B2B clients seeking to optimize their infrastructure investments, Revo offers these units as a highly cost-effective alternative to new hardware. By sourcing and rigorously testing pre-owned equipment, Revo enables telecom operators and data centre providers to expand or upgrade their networks efficiently, without the prohibitive capital expenditure associated with new deployments. The availability of parts like the Part Number 3AL81921AA through Revo's inventory extends the operational lifecycle of existing infrastructure, supporting sustainable network growth and reducing electronic waste. Revo's commitment to quality ensures that every refurbished module meets stringent performance standards, providing reliable connectivity for critical network operations.
