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TP-Link 1000-Base-SX MMF Mini GBIC Module Datasheet

Quick guide and datasheet for the TP-Link 1000-Base-SX MMF Mini GBIC Module (TL-SM311LM). Includes technical specifications, compatibility with TP-Link switches, and operating environment requirements.

Table of contents

Quick guide from the manual

The TP-Link 1000-Base-SX MMF Mini GBIC Module (TL-SM311LM) is a fiber optic module designed to extend network transfer distances. When connected to compatible managed or smart switches, it allows for data transmission over distances of up to 550 meters. This module is designed to be hot-swappable, allowing for easy installation and maintenance without powering down the switch.

Key Features

  • Hot Swappable: Can be inserted or removed while the device is running.
  • DDM Support: Digital Diagnostic Monitoring for real-time performance tracking.
  • SFP-MSA Compliant: Standardized form factor for broad compatibility.

Compatibility

This module is compatible with the following TP-Link switch series:

  • T3700 series
  • T2700 series
  • T2600 series
  • T2500 series
  • T1700 series
  • T1600 series
  • T1500 series
  • 2/3/5 series switches
  • MC220L

Technical Specifications

  • Standards and Protocols: IEEE 802.3z, CSMA/CD, TCP/IP
  • Wave Length: 850nm
  • Data Rate: 1.25Gbps
  • Port Type: LC/UPC
  • Fiber Type: 50/125µm or 62.5/125µm Multi-mode
  • Max. Cable Length: 550m
  • Power Supply: 3.3V

Operating Environment

To ensure optimal performance and longevity, operate and store the module within the following parameters:

  • Operating Temperature: 0°C to 70°C (32°F to 158°F)
  • Storage Temperature: -40°C to 80°C (-40°F to 176°F)
  • Operating Humidity: 10% to 90% non-condensing
  • Storage Humidity: 5% to 90% non-condensing

Practical help

Common problems

Connection failure or link down

Verify that the switch is compatible (T-series or MC220L) and that the fiber cable type is Multi-mode (50/125µm or 62.5/125µm).

Distance limitation

Ensure the total cable length does not exceed 550 meters.

Before use

  • Confirm your switch model is listed in the compatibility section.
  • Ensure you are using Multi-mode fiber cabling.
  • Verify the operating environment temperature is between 0°C and 70°C.
  • Check that the switch port supports SFP modules.

Manual page author

Emily Carter

User documentation editor

Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.