One of the most commonly used gbic rj45 SFP modules is GL-LH-SM, which is a Cisco 1000Base LX/LH SFP module. It is hot-swappable and can be plugged directly into the SFP/GBIC interface port or slot in your router and switch for Ethernet & Fiber Channel network applications. However, Cisco ended the support for GL-LH-SM and replaced it with GL-LH-SMD. What is GL-LH-SMD? GL-LH SMD is the successor of the GLC-LH-SM SFP module, and this Cisco 1000Base-LX/LH SFP is made for …
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