Bulb Size and Bases. C7 bulbs are smaller than C9 bulbs by 1 inch. C7 bulbs are 2 inches long and C9 bulbs are 3 inches long. C7 bulbs sit in a base known as a candelabra base and can only fit in this specific type of base. C9 bulbs sit in a base known as an intermediate base.
Indoor cable. Indoor fiber optic cable normally includes tight buffer type, distribution cable, breakout cable and armored cable etc. Cable's job is to protect the fibers from the environment encountered in an installation.
2.1 OFS optical fiber cables are designed to meet the rigors of conventional aerial, direct buried, and. underground duct environments. However, care must be taken during installation to observe the cableâs. minimum recommended bend diameter and maximum rated cable load (MRCL).