The 3M Fiber Optic Splice Closure 2178 family includes seven distinct models (XSB, XLB, S, SL, LS, LL and XL) in both flame-retardant and non-flame-retardant versions, each with flexibility built-in for growing networks. GROWING GROWING TECHNOLOGIES. line of closures and accessories designed to protect fiber optic facilities. Use the chart at right to narrow down your optio es that fit most butt/branch splicing configurations. The 2178 family has scalability and flexibility, allowing you to expand the.
