Tag Archives: GLC-SX-MMD

Does Using 3rd Party SFP Void the Warranty of the Equipment It Is Used On?

The cost of fiber optic transceivers, such as optical SFP, SFP+, XFP, QSFP+ and CFP optics keeps adding up over time. And the cost of the transceivers is high when sourced from Original Equipment Manufacturers (OEM) like Cisco, HP and … Continue reading

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About DDM, DOM and RGD in SFP Transceiver Module

If it is your first purchase of SFP transceivers, you may be very confused with the fuction options “DDM”, “DOM” or “RGD”. So, what functons do they represent? And do you need these functions? Today, we will have a detailed … Continue reading

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What’s Your Opinion Of Using 3rd Party SFP Modules On Cisco Catalyst Switch?

In general, the cost of an original brand SFP module is more expensive than a 3rd party one. Take Cisco 1000BASE-SX SFP (GLC-SX-MMD) for example, the list price of Cisco is about $ 500.00, but you can easily find a … Continue reading

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Difference between Cisco SFP Module GLC-SX-MM and GLC-SX-MMD

With the widespread used with the Cisco switches and routers, Cisco’s GBIC transceivers and Small Form-factor Pluggables (SFP) transceivers for Gigabit Ethernet and Fibre Channel applications have also been popular in the market. These small, modular optical interface transceivers offer … Continue reading

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The General Concerns of Using Cisco Compatible SFP

It seems to be an old topic that whether using compatible fiber optic transceiver is reliable. We have already discussed this topic few weeks ago. Without a doubt, the answer is affirmative. However, I have found that there are still … Continue reading

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