Base-8 or Base-12 cabling is a designation used in data centers. The basis for this cabling is the number of optical fibers. If eight optical fibers are used, it is called parallel-optical Base-8 cabling, and if twelve fibers are used, it is called Base-12 cabling.
In terms of connectors, these techniques are supported by multi-fiber connectors such as the MPO connector or the URM connector, or the LC connector in duplex design is used and several of these connectors are combined. This base cabling technology is used to implement the backbone cabling of the data centers. The connections to the core switches in 10 Gigabit Ethernet, 40 Gig abit Ethernet or 100 Gigabit Ethernet run via them.
A high packing density can be achieved with MPO and URM connectors, as the FOC connectors are available for 72 optical fibers or they can be combined accordingly.