A cable pull pit (also called a cable pulling chamber or pull box) is an essential component of underground electrical and telecommunication systems. These pits reduce friction and tension in. Riteoptic fiber optic cable joint box provides optical, sealing and mechanical strength of the continuity between adjacent fiber optic cable connection protection device. According to the structure can be classified into the dome (vertical) and horizontal (half) two kinds of cable splice closure. Unisol Fiber Optic Joint Enclosure Box is a high-performance, rugged solution built to support the protection, organization, and long-term management of fiber optic connections in outdoor and harsh environments. FO-VC2 JOINT USE - VERICAL MIDSPAN CLEARANCES 48. APPENDIX A - COVER SHEET / TOC 52. It can meet the construction requirements for laying optical fiber cables, underground, pipelines. Underground cables are pulled in conduit that is buried underground, usually 1-1. 2 meters (3-4 feet) deep to reduce the likelihood of accidentally being dug up.