Advanced Optical Fiber Identifier with Power Meter & VFL (OFI-100)

Ships direct from the manufacturer. Please allow up to 10 business days, though it often ships sooner.

Cutting the wrong fiber in a closure takes a customer down, and the Jonard Tools OFI-100 is the tool that stops it: an optical fiber identifier that clamps onto a fiber and tells you whether it's live and which way the signal is going, without disconnecting anything. Clamp it onto 250 µm or 900 µm fiber, or flip the reversible adapter over for 2 mm and 3 mm jacketed cable, and the color display shows signal direction, relative core power, and battery level; put a 270 Hz, 1 kHz, or 2 kHz test tone on the far end and it picks the tone out with an audible alert, so one fiber in a tray of forty identifies itself. A built-in power meter reading at 850, 1300, 1310, 1490, 1550, and 1625 nm and a built-in visual fault locator mean the same handheld confirms the fiber, checks its power, and finds the break. It runs on two AA batteries, comes with a rubber sleeve and a pouch, and is ETL Listed.

Features

• Finds live fiber and shows signal direction. Identifies traffic from 800 to 1700 nm on the color display, with arrows for direction, so you can confirm a fiber before you cut, splice, or reroute it.
• Picks out test tones. Detects 270 Hz, 1 kHz, and 2 kHz tones with an audible alert, for identifying one fiber in a bundle with a toned source at the far end.
• Relative core power. Reads −46 to +10 dBm at 1310 nm and −50 to +10 dBm at 1550 nm through the clamp, with 1.0 dB insertion loss on 250 and 900 µm fiber and 1.5 dB on 2 and 3 mm cable.
• Reversible adapter. 250 µm bare fiber and 900 µm on one side, 2 mm and 3 mm jacketed cable on the other.
• Built-in power meter. Reads absolute power at 850, 1300, 1310, 1490, 1550, and 1625 nm.
• Built-in visual fault locator. Visible red light for finding breaks and tight bends in the cable.
• Field ready. Two AA batteries, a protective rubber sleeve, and a carrying pouch, and the unit is ETL Listed.

Where It Fits

It suits splicing crews working in closures and trays where every fiber looks alike and some of them are carrying traffic, maintenance technicians rerouting or cutting over a live network who need to prove a fiber is dark before touching it, FTTH and PON work where a drop has to be identified at a splitter or a terminal, data center and central office staff tracing a fiber through a crowded panel without unplugging it, and anyone who wants the identifier, the power meter, and the VFL in one pocketable handheld instead of three.

Good to Know

An identifier works by putting a gentle bend in the fiber and reading the light that leaks out, which is why it reads through the coating without a connector and why it costs the link a dB or so while it's clamped on; that's harmless on a healthy link but worth knowing on one that's already at the edge of its budget, and it's the reason to clamp, read, and release rather than leave it on. Clamp with the fiber seated square in the adapter and the right side of the adapter for the size in hand; a 900 µm fiber in the 3 mm side reads nothing. The direction arrows tell you which way light is flowing, which with a toned source at a known end tells you which fiber is which. The relative power reading is for comparing fibers and spotting a weak one, not for certifying a link; the built-in power meter does an absolute reading at a connector, and a light source and reference cord are still needed for a proper loss test. A fiber that reads dark on the identifier may still carry something the clamp can't see, such as very low power or a wavelength at the edge of the range, so treat "no signal" as strong evidence rather than proof before you cut. The visual fault locator is for dark fiber; never look into its output or into any fiber end, and the identifier itself never needs you to look into a fiber, which is one of its virtues. Keep the clamp's optics clean, since dust where the fiber sits scatters the reading, and fit the rubber sleeve, which is what keeps a drop from being a repair.

Specifications

Documentation