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TP-Link 1000Base-BX TX-1550nm RX-1310nm WDM Bi-Directional 2km SFP Module

  • Brand: TP-Link
  • Part Number: TL-SM321A-2
  • Condition: Factory New Sealed
  • Availability: In Stock
  • Ships: Typically within 2 Business Days
  • Warranty: 3 Years


TL-SM321A-2 - TP-Link 1000Base-BX TX-1550nm RX-1310nm WDM Bi-Directional 2km SFP Module
TP-LINK´s TL-SM321A-2 and TL-SM321B-2 is designed to work in a pair to create an on-site gigabit fiber communication up to 2km (2,000 meters). With one single-mode fiber, the pair of modules can create a full-duplex gigabit path between your switches, storage devices, and server.

The TL-SM321A-2 is developed in accordance with the Small Form Pluggable Multi-Source Agreement (SFP-MSA). As a WDM Bi-Directional optical transceiver, TL-SM321A-2 uses an integrated LC Bi-Directional optical interface connector and the data link is up to 2 km in 9/125 μm SMF (Single-Mode Fiber).

Also, TL-SM321A-2 incorporates the Digital Diagnostic Monitoring (DDM) feature which is compatible with SFF-8472. DDM supports real-time monitoring of the transceiver, and shows parameters including the transceiver current which transmits/receives optical power and operating temperature.

TP-Link's TL-SM321A-2 is used for short-and medium distance fiber network in practice, and it provides fast and stable gigabit fiber connection for switches, routers, servers, etc.

  • Designed for on-site gigabit fiber communication
  • Up to 2 km transmission distance with 9/125 μm SMF (Single-Mode Fiber)
  • Bidirectional WDM communication on a single fiber
  • Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)
  • Supports Digital Diagnostic Monitoring (DDM)
  • Hot-swappable module design
  • Work with TL-SM321B-2 as a pair

  • Standards and Protocols: IEEE 802.3z, TCP/IP
  • Wave Length
    • TX: 1550 nm
    • RX: 1310 nm
  • Power Supply: 3.3 V
  • Safety & Emission: FCC, CE
  • Cable: Single-Mode Fiber
  • Fiber Type: 9/125 μm Single-Mode
  • Max. Cable Length: 2 KM
  • Data Rate: 1.25 Gbps
  • Port Type: LC Simplex
  • DDM: Yes
  • SFP-MSA: Yes
  • Hot Swappable: Yes
  • Environment
    • Operating Temperature: 0 ~ 70 °C (32 ~ 158 °F)
    • Storage Temperature: -40 ~ 85 °C ( -40 ~ 185 °F)
    • Operating Humidity: 10 ~ 90% RH, Non-Condensing
    • Storage Humidity: 5 ~ 90% RH, Non-Condensing

Package Contents
  • SFP Module TL-SM321A-2
  • Installation Guide

For more specifications of this TL-SM321A-2, please visit below TP-Link website:


This TL-SM321A-2 is 100% genuine TP-Link product. It won't have any compatibility problem with your TP-Link devices. And the TP-Link 1000Base-BX TX-1550nm RX-1310nm WDM Bi-Directional 2km SFP Module is factory new with original packaging. Buy it now and enjoy risk free purchase with fast worldwide delivery from GenuineModules.com

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