TP-Link TL-SM321A-2 1000Base-BX WDM Bi-Directional SFP Module
SKU
TL-SM321A-2
Model No
TL-SM321A-2
$12.99
Product Highlights
- Adopts the latest standard 1000Base-BX
- Up to 2 km transmission distance in 9/125 μm SMF (Single-Mode Fiber)
- Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)
- Supports Digital Diagnostic Monitoring (DDM)
- Supports Hot Swappable

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TP-LINK’s TL-SM321A-2 is an advanced WDM Bi-Directional SFP Module designed to provide high-speed, reliable data transmission for fiber networks. Boasting a transmission distance of up to 2 km over single-mode fiber and compliance with the latest 1000Base-BX standard, this module is ideal for connecting switches, routers, and servers. Its Digital Diagnostic Monitoring feature enhances operational efficiency, allowing for real-time monitoring of critical parameters.
TP-Link TL-SM321A-2 Key Features
- Latest Standard: Adopts the latest standard 1000Base-BX for optimal performance and compatibility.
- Transmission Distance: Achieves data transmission over distances up to 2 km in 9/125 ?m SMF, enabling flexible installation options.
- Compliance: Fully compliant with Small Form Pluggable Multi-Source Agreement (SFP-MSA) ensuring wide compatibility with various networking equipment.
- Real-Time Monitoring: Supports Digital Diagnostic Monitoring (DDM) for monitoring transceiver current, optical power, and temperature to maintain network reliability.
- Hot Swappable: Allows for easy and fast replacement without needing to power down your network, ensuring minimal downtime.
TP-Link TL-SM321A-2 Detailed Specifications
Feature | Details |
Standard | 1000Base-BX |
Transmission Distance | Up to 2 km in 9/125 ?m SMF |
Interface Connector | Integrated LC Bi-Directional |
DDM Support | Yes, compatible with SFF-8472 |
Hot Swappable | Yes |
Operating Temperature | Standard operating temperature range |
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