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

The Cisco GLC-SX-MMD is a Small Form-Factor Pluggable (SFP) transceiver module designed to provide Gigabit Ethernet connectivity. It is an industry-standard module used to connect switches and routers to the network.

This SFP module supports hot-swapping, which means it can be inserted or removed from a compatible Gigabit Ethernet port or slot without powering down the device. This feature allows for flexibility and easy maintenance without interrupting network operation.

The GLC-SX-MMD transceiver module supports both optical and copper connections. It can be used with various Cisco products and can be intermixed with other SFP modules on a port-by-port basis.

The supported standards for this module include:

• 1000BASE-SX: This is a Gigabit Ethernet standard that uses multimode fiber optic cabling. It supports data transmission up to 550 meters.
• 1000BASE-LX/LH: This standard also provides Gigabit Ethernet connectivity but uses single-mode or multimode fiber optic cabling. It supports longer distances compared to 1000BASE-SX, with a range of up to 10 kilometers.
• 1000BASE-EX: This standard is similar to 1000BASE-LX/LH but supports even longer distances, up to 40 kilometers.
• 1000BASE-ZX: Another Gigabit Ethernet standard that supports very long distances, up to 70 kilometers.

The GLC-SX-MMD module can also be used with the 1000BASE-T and 1000BASE-BX10-D/U standards, which utilize copper cabling. 1000BASE-T supports Ethernet connectivity over twisted-pair copper cables, while 1000BASE-BX10-D/U uses single-strand fiber optic cabling for bidirectional transmission.

Overall, the Cisco GLC-SX-MMD SFP module offers versatile connectivity options and can be used in various Cisco networking devices to enable Gigabit Ethernet connectivity over different types of cabling and distances.

Features include:

1. Hot-swappable Design: The module can be inserted or removed from a compatible Gigabit Ethernet port or slot without the need to power down the device. This allows for easy installation, removal, and maintenance without disrupting network operation.

2. Gigabit Ethernet Connectivity: The module provides Gigabit Ethernet connectivity, enabling high-speed data transmission up to 1 Gbps.

3. SFP Form Factor: The Small Form-Factor Pluggable (SFP) design ensures compatibility with a wide range of Cisco products. It allows for easy interchangeability and flexibility in network deployments.

4. Multimode Fiber Support: The GLC-SX-MMD supports 1000BASE-SX, which uses multimode fiber optic cabling. This standard enables data transmission up to 550 meters, making it suitable for short to medium distance network connections.

5. Compatibility with Various Standards: The module can be used with different Cisco networking products and supports a range of standards, including 1000BASE-T (Ethernet over twisted-pair copper cables), 1000BASE-LX/LH (longer range multimode or single-mode fiber optic cabling), 1000BASE-EX (extended range single-mode fiber optic cabling), 1000BASE-ZX (very long-range single-mode fiber optic cabling), and 1000BASE-BX10-D/U (bidirectional single-strand fiber optic cabling).

6. Interoperability: The GLC-SX-MMD can be intermixed with other SFP modules on a port-by-port basis, allowing for flexibility in network configurations and the ability to combine different types of connections within a network infrastructure.