A New Interpretation of GLC-LH-SM SFP

IT elites or practitioners of technology industry may be quite familiar with SFP transceiver. But today a brand new perspective will be presented to you. It is very worth reading!

SFP transceiver is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications, which is not standardized by any official standards, expect multi-source agreement. It interfaces a network device, such as swich, router, media converter or similar device, to a fiber optic or copper networking cable.

SFP transceiver is so popular lies in the following reasons. Firstly, it is easier to change and
maintain than traditional transceiver. Secondly, it supports different speeds such as 2Gb, 4Gb, and 8Gb or possibly higher. What’s more, it is the high performance, cost effective transceiver. Last but not least, SFP transceiver is available with a variety of transmitter and receiver types, allowing users to select the appropriate transceiver to provide the required optical reach according to the available optical fiber type.

SFP transceivers have a wide range of varieties that differs in transmission rate (range from 100Mbps to 4Gbps or more), working distance (From 500m to 100km), wavelength (typically 850nm, 1310nm, 1550nm).  SFP transceivers are commonly available in several different product numbers:

SFP-GE-F, SFP-GE-S, SFP-GE-L, SFP-GE-Z, GLC-SX-MM, GLC-LH-SM, GLC-ZX-SM, GLC-T, CWDM-SFP-1470, CWDM- SFP-1490, CWDM-SFP-1510, CWDM-SFP-1530, CWDM-SFP-1550, CWDM-SFP-1570, CWDM-SFP-1590, CWDM-SFP-1610.

GLC-LH-SM SFP is Cisco 1000BASE-LX/LH SFP transceiver module. 1000BASE-LX/LH SFP, compatible with IEEE802.3 standard, is not only made for single-mode fiber or multimode fiber. But this transceiver can be used for both single-mode and multimode. It can achieve a distance up to 10km over single mode fiber and up to 550 m on any multimode fiber. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable

GLC-LH-SM can be used in a variety of Cisco fibre channel switches, servers and other fiber-optic network equipment. Currently GLC-LH-SM transceiver has a number of compatible transceiver that can be generic version. This will effectively save time and costs.

GLC-LH-SM SFP transceiver from the distributor is a Cisco brand mini-GBIC but can be used to cooperate with anyone that builds SFP ports such as HP, Finistar, and Juniper among many others. Finding a compliant GLC-LH-SM SFP will save lots of time for IT experts who are now updating network and T3 systems.

You may get comfused about how to choose the GLC-LH-SM SFP. In order to solve your problems, I will give you a hint on selecting an transceiver. First, you should always read the transceiver’s user documentation. Then you are supposed to figure out your needs, and then learn to choose the right GLC- LH-SM SFP. For example, a MCP should be used when your network’s installed optical cable is OM1 or OM2 rated multimode fiber. In short, the MCP is an optical jumper that transmits fiber from a single mode fiber to a multimode fiber.

This post is a reference source for the beginners in this field or those who are lack of knowledge with fiber optic transceiver but have a strong interest in it. If you have any other thought, please leave your comment to share with us.