Ensure that when connecting two multimode fibers, they both have the same core diameter (50/125 or 62.5/125).
Mgbe ejikọta abụọ multimode emep uta eri, ị kwesịrị ị na mgbe nile ka n'aka na ha bụ otu isi n'obosara (50/125 ma ọ bụ 62.5 / 125).