Place a controlled optical split point in a 62.5/125 µm multimode fiber run where a portion of transmitted light must be made available to a monitoring path. The PROGRESS SOFTWARE FM-ACC-HW-OM1701 is an LC fiber tap with a 70/30 split ratio. It provides a fixed optical division rather than an adjustable setting, allowing the selected ratio to be accounted for when engineering the link budget. LC connectivity keeps the tap aligned with installations already standardized on LC-terminated multimode cabling. The 62.5/125 µm core specification matters: match this accessory to the installed fiber type rather than substituting it into a 50/125 µm multimode path without validating the optical design. The 70/30 ratio is the defining selection point for applications that need unequal optical branches instead of an even split. Use the tap at an intentional observation point in a multimode link where the optical path and monitoring branch must be planned together. Its distinction among LC tap configurations is the combination of 62.5/125 µm multimode fiber support and a 70/30 split. Select it where both of those physical-layer requirements match the installed cabling and the intended monitoring architecture.