Mikrotik S-3553LC20D 20km SFP Modular

Mikrotik S-3553LC20D 20km SFP Modular

Product Description

The Mikrotik S-3553LC20D 20km SFP Modular is a high-performance pair of 1.25G BiDi SFP optical transceivers designed for long-distance single-mode fiber communication. This module kit includes two complementary SFP modules using 1310nm and 1550nm wavelengths for bidirectional data transmission over a single fiber strand. Built for enterprise networking, ISP infrastructure, telecom applications, and fiber backbone deployment, the S-3553LC20D provides reliable Gigabit connectivity with support for up to 20 kilometers transmission distance. Its hot-swappable design, DDM support, and broad compatibility make it an ideal solution for modern optical networking environments.

Key Features & Specifications

• Speed: 1.25Gbps Gigabit Ethernet
• Ports: Single LC UPC Optical Connector
• Wireless Standard: Not applicable
• CPU/RAM: Not applicable
• Switching Capacity: 1.25Gbps
• Forwarding Rate: 1.25Gbps Full Duplex
• PoE Standard & Budget (if applicable): Not applicable
• Additional Features:
  • Includes S-35LC20D and S-53LC20D BiDi SFP pair
  • Supports up to 20km transmission distance
  • Single-mode fiber (SMF) support
  • Wavelength:
    • TX1310nm / RX1550nm
    • TX1550nm / RX1310nm
  • Bi-directional transmission over single fiber
  • Hot-swappable SFP form factor
  • DDM (Digital Diagnostic Monitoring) support
  • Low power consumption
  • Compatible with MikroTik and standard SFP devices
  • Operating temperature: -40°C to +70°C
  • Stable long-distance optical connectivity
  • Compact industrial-grade metal housing
  • Suitable for Gigabit Ethernet optical networking

Performance & Use Case

Ideal for:

• ISP fiber backbone deployment
• Enterprise optical networking
• Telecom fiber communication
• Long-distance switch-to-switch connectivity

Handles:

• Stable Gigabit optical transmission
• Single-fiber bidirectional communication
• Long-range fiber networking up to 20km
• High-speed LAN and WAN fiber infrastructure

⚠️ Not recommended for:

• Multimode fiber deployments
• 10Gbps networking environments
• Copper Ethernet networking
• Devices without SFP ports

Pros & Cons

✅ Pros

• Reliable 1.25Gbps optical performance
• Supports up to 20km fiber transmission
• Uses single fiber for bidirectional communication
• DDM monitoring support
• Hot-swappable easy installation
• Broad compatibility with SFP devices

❌ Cons

• Limited to Gigabit networking only
• Requires single-mode fiber infrastructure
• Not suitable for 10G networking
• No RJ45 copper connectivity

Summary

The Mikrotik S-3553LC20D 20km SFP Modular is an excellent solution for ISPs, enterprise networks, and telecom professionals who require stable long-distance Gigabit fiber connectivity. Its BiDi single-fiber design, reliable 20km transmission capability, and MikroTik compatibility make it a dependable choice for modern optical networking infrastructure.

Contact Information

• Phone: 01877-778074, 01877-778075
• Email: centurycomputers534@yahoo.com
• Address: Century Computers is located at 1103/B, Level-11, Multiplan Center, New Elephant Road, Dhaka-1205, Bangladesh.