Cisco Fiber Optic Module GLC-SX-MM

Cisco Fiber Optic Module GLC-SX-MM:

The Cisco Fiber Optic Module GLC-SX-MM is a Gigabit Ethernet fiber optic SFP transceiver module designed for short-range connectivity over multi-mode fiber (MMF). It operates at an 850 nm wavelength and supports data rates up to 1Gbps, enabling link distances of up to 550 meters using OM2 or OM3 fiber cables.

Featuring LC duplex connectors and hot-swappable design, it provides flexibility for network expansion or maintenance without downtime. Commonly used in data centers, enterprise LANs, and building interconnections, the GLC-SX-MM offers a cost-effective, reliable solution for high-speed connections within short distances on Cisco networking equipment.

The Cisco GLC-SX-MM is a short-range Gigabit Ethernet transceiver module that plays a crucial role in fiber-optic networking by converting electrical signals from network devices into optical signals for transmission over fiber cables. It is part of Cisco’s SFP (Small Form-Factor Pluggable) family, meaning it is compact, hot-swappable, and can be easily installed or replaced without turning off the switch or router.

The GLC-SX-MM is widely deployed in enterprise networks, campus environments, and data centers for short-range fiber connections because it’s:

• Cost-effective compared to long-range optics.
• Energy-efficient (typically consuming less than 1W).
• Reliable and flexible, supporting hot-swappable operations and Digital Optical Monitoring (DOM) for real-time diagnostics.

This module designed by Cisco company and you can buy it in network equipment market with 1-year Atech warranty. If you want to know more about network module specially cisco fiber optical module, you can contact us.

Specifications of Cisco Fiber Optic Module GLC-SX-MM:

• Form Factor: SFP (Small Form-Factor Pluggable), hot-swappable
• Interface: LC duplex connector
• Fiber Type: Multi-Mode Fiber (MMF)
• Wavelength: 850 nm
• Data Rate: 1Gbps (Gigabit Ethernet)
• Maximum Distance: Up to 550m on OM2/OM3 MMF | Typically 220m on older 62.5 µm MMF
• Cable Type: 50/125 µm MMF (preferred for full 550 m reach) | 62.5/125 µm MMF (limited reach)
• Transmit Power: –9.5 dBm to –3 dBm
• Receive Sensitivity: –17 dBm (typical)
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Compatibility: Cisco switches, routers, and devices with SFP ports
• Standards Compliance: IEEE 802.3z (1000BASE-SX)
• Digital Diagnostics (DDM): Supported

Applications of Cisco Fiber Optic Module GLC-SX-MM:

1. Data Center Connectivity

• Connecting aggregation switches to access switches within the same data center.
• High-speed fiber links between server racks or switches in different rows.

2. Enterprise LAN (Campus Networks)

• Linking switches between different floors or buildings in a campus using multi-mode fiber.
• Providing high-speed uplinks from access switches to distribution or core switches.

3. Short-Distance Fiber Interconnects

• Intra-building connections for equipment located in different rooms but within the 220–550m range.
• Connecting devices where copper cabling is not suitable due to electromagnetic interference.

4. Redundant and Resilient Links

• Building failover fiber links for high availability in critical business applications.
• Supporting port-channel or Ether Channel configurations for aggregated bandwidth.

5. Storage Area Networks (SAN)

• Used in Gigabit Ethernet-based SAN environments where short-range fiber is needed for connecting switches and storage devices.

6. ISP and Carrier Networks

• Enabling fiber distribution inside local Points of Presence (PoPs) for short-range aggregation links.

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