Skip to content
Order before 3pm, Monday to Friday, for next-working-day dispatch on in-stock items*
Courier networks run at peak load in December. We will always try to dispatch same day.
We appreciate your business throughout the year.
Blog Online Catalog Register a Trade Account Technical Support Track My Order Why ScreenMoove?
ScreenMoove

TP-Link TL-SM321A 1000Base-BX WDM Bi-Directional SFP Module

SKU: TL-SM321A
TP-Link TL-SM321A 1000Base-BX WDM Bi-Directional SFP Module TP-Link Transceivers TP-Link
Availability:
Out of stock
Sold out

£20.95 (Excl. VAT)

- £25.14 (Inc. VAT)
£20.95 - £20.95
- - £25.14
Availability:
Out of stock
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Google Pay
  • Paypal
  • Shop Pay
  • Klarna
  • Bank Transfer (BACS)
Trade pricing for verified resellers, proforma issued on official company letterhead for PO processing.
Education & Public Sector Pricing available for schools, universities, NHS, and government organisations. Contact our Public Sector Team on 020 8191 9223 or email info@screenmoove.com.
  • Description
  • Specifications
  • Downloads

  • TP-Link TL-SM321A 1000Base-BX WDM Bi-Directional SFP Module

    TP-Link´s TL-SM321A adopts the latest standard 1000Base-BX, transmitting over one single-mode fiber with one different wavelength going in each direction. Paired with TL-SM321B, You can extend the network distance up to 20Km with TP-Link´s routers, switches and media converters for reliable high-speed long-distance communication.

    Up to 20 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 as a pair

  • PACKAGE CONTENTS
    Package Contents • SFP Module TL-SM321A <br> • Installation Guide
    HARDWARE FEATURES
    DDM Yes
    SFP-MSA Yes
    Hot Swappable Yes
    MEDIA CONVERTER & MODULE
    Standards and Protocols IEEE 802.3z, TCP/IP
    Wave Length TX: 1550 nm <br> RX: 1310 nm
    Dimensions (WDH) 2.20.60.5 in (55.414.612.9 mm)
    Power Supply 3.3 V
    Safety & Emission FCC, CE
    Cable Single-Mode Fiber
    Fiber Type 9/125 μm Single-Mode
    Max. Cable Length 20 KM
    Data Rate 1.25 Gbps
    Port Type LC Simplex
    Environment Operating Temperature: 0–70 °C (32–158 °F) <br> Storage Temperature: -40–85 °C (-40–185 °F) <br> Operating Humidity: 10–90% RH, Non-Condensing <br> Storage Humidity: 5–90% RH, Non-Condensing
  • Description Downloads
    Datasheet Downloads

Book a Free Product Demo

Remote or on-site. No obligation.

Integrator or Installer?

Trade pricing, volume discounts, same-day collection.

Request a Trade Account

Education & Public Sector Solutions

Exclusive pricing, flexible terms, and dedicated support for schools, universities, NHS, and government organisations.

Create an Account Email Public Sector Team
Official Purchase Orders We accept formal POs with VAT-compliant invoicing for all verified institutions.
Contract & Volume Discounts Competitive rates for multi-site, long-term, or framework-based deployments.
Dedicated Account Management Single point of contact for lead times, coordination, and sourcing.
Flexible 30-Day Terms Available to verified schools, councils, and government bodies.
Next-Day Delivery

Same-day shipping

Trade Account

Trade account available

Trusted Customers

See Our Latest Reviews

Public Sector Friendly

We Accept Purchase Orders

Trustpilot

Have more questions ? Talk to our experts...

Need help choosing the right product?

Need help choosing the right product?

Speak directly with a dedicated Screen Moove expert and get the right solution, first time.

Call us on: 020 8191 9223
Email us: info@screenmoove.com

Contact us

Simply complete our contact form, and we will promptly respond to your inquiries.

If you have any questions or enquiry, please fill out the form below with all of your details and we'll get back to you shortly.