Cisco GLC-SX-MMD 1000BASE-SX SFP Optical Transceiver
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Cisco GLC-SX-MMD 1000BASE-SX SFP Optical Transceiver

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GLC-SX-MMD
Description

The Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver is a Gigabit Ethernet optical module designed for short-range data transmission over multimode fiber networks. Built in the Small Form-Factor Pluggable (SFP) format, this transceiver complies with the 1000BASE-SX standard specified in IEEE 802.3z, making it suitable for enterprise networks, campus environments, and data center applications that require reliable and efficient fiber optic connectivity.The module operates at a nominal wavelength of 850 nm and supports a data transmission rate of 1 Gbps over multimode fiber (MMF). Depending on the type and quality of the installed fiber, the transceiver can support transmission distances of up to 550 meters. The device uses a duplex LC optical connector, ensuring compatibility with commonly deployed fiber optic patch cables and structured cabling systems.

The GLC-SX-MMD module supports Digital Optical Monitoring (DOM) functionality, which allows real-time monitoring of key operating parameters such as optical output power, receiver power, temperature, and supply voltage. This feature improves network diagnostics and simplifies maintenance. The transceiver also supports hot-swappable installation, enabling it to be inserted or removed from compatible Cisco switches and routers without interrupting system operation. Designed for stable optical performance and reliable Gigabit Ethernet connectivity, the Cisco GLC-SX-MMD module is widely used in modern fiber-based network infrastructures.

Features
Application Standard:
1000BASE-SX
Connector Type:
LC
Data Rate:
1 Gbit/s
Form Factor:
SFP
Optical Fiber Type:
MMF
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