TP-Link 1000BASE-BX WDM Bi-Directional SFP Module SM321A-2
The TP-Link 1000BASE-BX WDM Bi-Directional SFP Module extends Gigabit Ethernet connectivity over single-mode fiber up to 1000 meters, optimizing network reach and reducing infrastructure costs.
- Fiber Optic Extension: Extends Gigabit Ethernet signals over single-mode fiber, enabling long-distance network segments for campus or distributed office environments.
- Bi-Directional WDM: Utilizes a single fiber strand for both transmit and receive, significantly reducing cabling requirements and installation costs.
- Hot-Swap Support: Allows for module replacement without powering down the host device, minimizing service interruptions and maintaining network uptime.
- Standardized Connectivity: Complies with IEEE 802.3z and SFP standards, ensuring broad compatibility with existing and future networking infrastructure.
Product Overview
Product Overview
The TP-Link 1000BASE-BX WDM Bi-Directional SFP Module, MPN SM321A-2, is engineered for extending Gigabit Ethernet networks over single-mode fiber. It supports a maximum data transfer rate of 1250 Mbit/s and can achieve distances up to 1000 meters, providing reliable high-speed links for critical business operations.
This module leverages Wavelength Division Multiplexing (WDM) to transmit and receive data over a single fiber strand, significantly cutting down on cabling expenses and simplifying deployment. Its hot-swap design ensures that network administrators can perform maintenance without disrupting active services, safeguarding business productivity.
- Core Functionality: Extends Gigabit Ethernet over single-mode fiber, enabling reliable long-distance connections for distributed network segments.
- Cost-Efficient Cabling: Employs WDM bi-directional technology to use a single fiber strand, reducing material costs and simplifying cable management.
- Seamless Integration: Designed to be compatible with TP-Link T3700, T2700, and T2600 series switches, ensuring frictionless deployment within existing TP-Link ecosystems.
- Operational Continuity: Features hot-swap capability, allowing for module replacement without network downtime, critical for maintaining business operations.
- Operational Value: Provides a standardized, reliable, and cost-effective method for fiber optic extension, contributing to a lower total cost of ownership for network infrastructure.
This SFP module is an essential component for businesses requiring robust and efficient fiber optic network extensions without incurring excessive infrastructure overhead.
Technical Specifications
1Performance & Business Impact
2Connectivity & I/O
3Physical & Environmental
4Lifecycle, Warranty & Compliance
Full Specifications
Power1
Performance14
Features2
Certificates2
Packaging content1
Operational conditions1
Packaging data1
Logistics data1
Downloads1
What This Solves
Long-Distance Network Extension
Many businesses require extending their network beyond the limits of copper cabling, such as connecting buildings on a campus or different floors in a high-rise. This module provides a reliable Gigabit fiber link up to 1000 meters, ensuring consistent data flow across extended distances.
Campus networks, multi-building facilities, distributed office environments, data center interconnects
Cost-Optimized Fiber Deployment
Traditional fiber optic deployments often require two strands of fiber, doubling cabling costs and installation complexity. The bi-directional WDM technology of this module allows for full-duplex communication over a single fiber strand, significantly reducing infrastructure expenses.
Budget-conscious IT departments, new office build-outs, infrastructure upgrade projects, organizations seeking to minimize cabling footprint
High-Availability Network Links
Maintaining network uptime is crucial for business operations, making hot-swappable components essential for critical infrastructure. This SFP module can be replaced without powering down the host device, enabling rapid maintenance and minimizing service interruptions.
Network operations centers, mission-critical infrastructure, IT operations teams, facilities management
Key Features
1250 Mbit/s Maximum Data Transfer Rate
Ensures high-speed Gigabit Ethernet connectivity, supporting demanding business applications and large data transfers without bottlenecks.
WDM Bi-Directional Technology
Utilizes a single fiber strand for both transmission and reception, reducing cabling costs and simplifying fiber infrastructure deployment.
1000 m Maximum Transfer Distance
Extends network reach over single-mode fiber, enabling reliable connections between distant network segments or buildings.
Hot-Swap Capability
Allows for module replacement without powering down the host device, minimizing network downtime and ensuring continuous business operations.
IEEE 802.3z Networking Standard
Guarantees interoperability with a wide range of standard-compliant networking equipment, protecting existing infrastructure investments.
Compatible With
Network Switches
TP-Link T3700, T2700, T2600 series, Cisco, Juniper, HPE, Dell, Netgear SFP-enabled switches
Fiber Media Converters
TP-Link MC112CS, MC112CM, and other SFP-compatible fiber media converters
Routers & Firewalls
Business-grade routers and firewalls with available SFP ports for fiber uplink
Structured Cabling Systems
Single-mode fiber optic cables (9/125 µm), LC (UPC) connectors, fiber patch panels
Frequently Asked Questions
What type of fiber cable is compatible with this SFP module?
This module is designed for single-mode fiber (SMF) with a core/cladding diameter of 9/125 µm. It uses an LC (UPC) fiber optic connector for reliable attachment.
Can this SFP module be used with non-TP-Link switches?
Yes, as an SFP standard-compliant module, it is generally compatible with other brands of switches, routers, and media converters that have open SFP ports and support 1000BASE-BX transceivers.
What is the primary benefit of WDM Bi-Directional technology?
The main benefit is cost savings and simplified cabling. By transmitting and receiving data over a single fiber strand using different wavelengths (1550 nm Tx, 1310 nm Rx), it halves the number of fiber cables required compared to traditional dual-strand SFP modules.
What is the operating temperature range for this module?
This SFP module is designed to operate reliably in temperatures ranging from 0 to 70 °C (32 to 158 °F), making it suitable for standard data center and office environments.
Warranty & Returns
Manufacturer Warranty
2 Years
Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.
Return Policy
Returns subject to manufacturer approval
Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.