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TP-Link TL-SM321A Gigabit Single-Mode WDM Bi-Directional SFP Module - TL-SM321A - [SG Ready Stock]

Canonical URL: https://omnicommerce.sg/catalog/4b887a40-2014-4a23-96d9-bd56ac94c022

ACO Profile: v1 • Last Run: 20 Jul 2026, 01:29 pm

TP-Link TL-SM321A Gigabit Single-Mode WDM Bi-Directional SFP Module - TL-SM321A - [SG Ready Stock]

Product Highlights

  • 20 km single-mode reach
  • Single fiber bi-directional
  • LC simplex connector
  • 1 Gbps full duplex
  • 5 year manufacturer warranty

Description

Gigabit 1000Base-BX WDM bi-directional SFP module for reliable single-mode fiber connections up to 20 km. Transmit and receive full gigabit data over a single fiber strand using wavelength division multiplexing.

Product view

Core Specifications

  • LC/UPC simplex connector
  • TX: 1550 nm / RX: 1310 nm wavelength
  • Compatible with 9/125 μm single-mode fiber
  • 1 Gbps full-duplex operation
  • 20 km maximum transmission distance

Compatibility

Works with all standard SFP interface devices including network switches, routers, firewalls, NAS, servers, media converters and data centre hardware. Pair with TL-SM321B-2 module for complete bidirectional link operation.

Reliability & Build

  • Robust metal housing
  • Operating temperature range 0–70 °C
  • Low power consumption < 1.5W
  • Factory tested before shipping
  • 5 year manufacturer warranty

Connection diagram

Suitable for campus networks, enterprise deployments, ISP infrastructure and long-range point-to-point fiber links.