LC/VSFF Duplex Patch Cables
In data center fiber optic cabling, LC duplex fiber patch cables have always played a very important role. In order to save fiber resources, when the internal interconnection of the data center is upgraded from 10G to 40G, 25G to 100G, 50G to 200G, and 100G to 400G, SWDM4, CWDM4 or LWDM4 optical transceivers can be used to continue to use LC duplex cables, without recabling.
With the large-scale commercial use of 400G, data centers have entered the era of ultra-high-density cabling, and VSFF (SN or MDC) duplex cables have emerged as the times require. Compared with LC, VSFF connectors have smaller physical size, and the cabling density can reach 3 times that of LC. At present, some 400G multi-channel parallel optical transceivers on the market have begun to use SN interfaces, and each channel transmission is based on an SN duplex cable, which makes the connection between devices more flexible. However, the MDC duplex cables are mainly used for MMC (a new type of multi-fiber connector with higher density than MPO/MTP) cabling system to replace the traditional LC duplex cables.