Ụfọdụ ndị ahịa enweghị ike ijide n'aka ụdị eriri multimode ha kwesịrị ịhọrọ.N'okpuru ebe a bụ nkọwa nke ụdị dị iche iche maka ntụaka gị.
E nwere ụdị dị iche iche nke graded-index multimode glass fiber cable, gụnyere OM1, OM2, OM3 na OM4 cables (OM na-anọchi anya ngwa anya multi-mode).
OM1 na-akọwapụta eriri 62.5-micron na OM2 na-akọwapụta eriri 50-micron.A na-ejikarị ihe ndị a na ngwa ụlọ maka netwọk ruru 1Gb/s dị mkpụmkpụ.Mana eriri OM1 na OM2 adabaghị maka netwọkụ dị elu nke oge a.
OM3 na OM4 bụ eriri multimode fiber kachasị mma (LOMMF) ma mepụta ya iji nabata netwọk fiber optic ngwa ngwa dị ka 10, 40, na 100 Gbps.Emebere ha abụọ maka ojiji ya na 850-nm VCSELS (laser vertical-cavity surface-emitting lasers) ma nwee sheaths aqua.
OM3 na-akọwapụta eriri 850-nm laser kachasị mma 50-micron nwere bandwit modal dị irè (EMB) nke 2000 MHz/km.Ọ nwere ike ịkwado anya njikọ 10-Gbps ruo mita 300.OM4 na-akọwapụta eriri eriri 850-nm laser kachasị mma 50-micron bandwit modal dị mma nke 4700 MHz/km.Ọ nwere ike ịkwado anya njikọ 10-Gbps nke mita 550.Ogologo 100 Gbps dị mita 100 na mita 150, n'otu n'otu.
