Today, 10G fiber network has been common in the telecommunications network, 10G switches are widely used by users. According to statistics, Cisco switch is the most common one. If you are using a Cisco switch, you need to choose a Cisco compatible optical module, such as an SFP optical module, an SF

Cisco network equipment has a variety of models, which often confuses people and makes it difficult to record, so it’s necessary to conclude the meanings that various product models stand for.1. The meaning of the letters in the Cisco product models1. Product models that start with CISCO are routers

According to the physical standard, Cisco SFP optical module can be divided into 1000BASE-T, 1000BASE-SX, 1000BASE-LX / LH, 1000BASE-EX, 1000BASE-ZX, 1000BASE-BX10-D / U optical module. The Cisco GLC-LH-SM optical module is a 1000BASE-LX / LH optical module, which will be covered in detail in this a