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Looks like GLC-LH-SM is the SFP for your application.
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Looks like GLC-LH-SM is the SFP for your application.

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@don - GLC-LH-SM is EoS now - the replacement is the GLC-LH-SMD variant. &nbsp;It's essentially the same thing but with DOM capability.<br />
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<a href="http://www.cisco.com/en/US/prod/collateral/modules/ps5455/eol_c51-698060.html" rel="ugc">http://www.cisco.com/en/US/prod/collateral/modules/ps5455/eol_c51-698060.html</a>
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@don - GLC-LH-SM is EoS now - the replacement is the GLC-LH-SMD variant.  It's essentially the same thing but with DOM capability.

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/eol_c51-698060.html [http://www.cisco.com/en/US/prod/collateral/modules/ps5455/eol_c51-698060.html]

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Got some compatible ones and they worked great! &nbsp; Thanks for the info.
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Got some compatible ones and they worked great!   Thanks for the info.

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What SFP module would you use to connect a 3750 switch to a 3550 that is using a WS-G5486 Gigabit module? &nbsp; Does anyone have experience with SX to LX adapters and if they are reliable?
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What SFP module would you use to connect a 3750 switch to a 3550 that is using a WS-G5486 Gigabit module?   Does anyone have experience with SX to LX adapters and if they are reliable?

How to connect Cisco 3550 and 3750 with fiber?

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.