Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module.

Cisco GLC-SX-MMD= 1000BASE-SX SFP Transceiver Module is made for Multimode Fiber only. The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 μm multimode fiber links up to 550 m and on 62.5 μm Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 μm multimode fiber cable. The 850-nm wavelength, extended operating temperature range, and DOM support, dual LC/PC connector.

Cisco CONDITION

Brand New – A brand-new, unused, unopened, undamaged item in its original packaging.

Cisco WARRANTY

This item comes with 60-months manufacturer’s warranty.

QUICK SPECIFICATIONS

• Interfaces/Ports Details: 1 x LC/PC Duplex 1000Base-SX Network
• Network Technology: 1000Base-SX
• Fiber Optic Cable Standard: 62.5 µm, 50 µm
• Ethernet Technology: Gigabit Ethernet
• Media Type Supported: Optical Fiber
• Fiber Mode Supported: Multi-mode

WHAT’S INCLUDED

• Cisco 1000BASE-SX SFP Transceiver Module GLC-SX-MMD=

Frequently Asked Questions (FAQs)

Q1: What is the Cisco GLC-SX-MMD? A1: The Cisco GLC-SX-MMD is a Small Form-Factor Pluggable (SFP) transceiver module designed to provide Gigabit Ethernet connectivity over multimode fiber optic cables. It operates at 1 Gbps and supports distances up to 550 meters on OM2 fiber, or up to 1km on OM3/OM4 fiber. The “MMD” signifies its Digital Diagnostics Monitoring (DDM) capabilities.

Q2: What is the difference between GLC-SX-MM and GLC-SX-MMD? A2: The primary difference is the “D” which stands for Digital Diagnostics Monitoring (DDM). The GLC-SX-MMD includes DDM functionality, allowing network administrators to monitor real-time operating parameters of the transceiver, such as temperature, optical power, and voltage. The GLC-SX-MM does not have this advanced monitoring capability.

Q3: What kind of fiber cable does the GLC-SX-MMD use? A3: The GLC-SX-MMD uses multimode fiber (MMF) optic cables. It is optimized for 50/125 µm and 62.5/125 µm fiber, performing best with laser-optimized OM3 or OM4 multimode fiber for extended distances.

Q4: What is the maximum distance the GLC-SX-MMD can transmit data? A4: The maximum transmission distance depends on the type of multimode fiber used:

• Up to 550 meters (1804 ft) with standard 50/125 µm multimode fiber (OM2).
• Up to 220 meters (722 ft) with 62.5/125 µm multimode fiber (FDDI-grade).
• Up to 1000 meters (1km) with laser-optimized 50/125 µm multimode fiber (OM3/OM4).

Q5: Is the GLC-SX-MMD hot-swappable? A5: Yes, the Cisco GLC-SX-MMD is hot-swappable, allowing you to insert or remove it from a compatible switch or router port without powering down the device, minimizing network downtime.

Q6: Does this module require any special configuration? A6: Typically, no. As an industry-standard SFP, it’s designed for plug-and-play operation with compatible Cisco equipment. However, for specific network setups or advanced features, consulting your device’s documentation or a network specialist is recommended.