User guide

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Features
• Rugged, handheld, lightweight
• Accepts 250 µm, 900 µm coated fiber, 3 mm jacketed fiber cable, and ribbon fiber
• No head swapping or adjustments
• Identifies light carrying fiber
• Low insertion loss - traffic remains uninterrupted
• Indicates direction of traffic
• Indicates Tone signal visually and audibly
• 2 kHz Tone detection - OFI 200 models
• 270 Hz, 330 Hz, 1 kHz, and 2 kHz Tone detection - OFI 400 models
• Easy-to-read LCD display with Backlight - OFI 400 models
• Measures fiber core or relative power - OFI 400 models
• Power Off and Set Reference feature - OFI 400 models
• Battery operated
• Low battery indication
• Low cost, easy to use
OFI Optical Fiber Identifiers
Noyes Optical Fiber Identifiers are rugged, handheld, and easy-to-use fiber optic test
instruments designed to detect optical signals transmitted through a single-mode fiber
without disrupting traffic. During installation, maintenance, rerouting, or restoration; it is
often necessary to isolate a specific fiber. By simply clamping an Optical Fiber Identifier
onto a gently bent fiber, the unit will indicate if there is [No Signal], [Tone], or [Traffic] and
identify signal direction.
The OFI 200 model and OFI 400 model Identifiers are equipped with a unique two-position
head design that can be configured to work with 250 µm, 900 µm, ribbon, or jacketed
fiber in seconds, without tools or adjustments. When testing coated fibers, the slim design
of the OFI 200 and OFI 400 models allows easier access on a splice tray where the
amount of work space is limited. The clamping trigger is ergonomically designed to fit the
natural motion of the operator’s hand. A high impact molded plastic case makes the OFI
models suitable for use outside plant or in the central office.
The OFI 400 model is the next generation of Noyes Optical Fiber Identifiers. It has all the
features of the OFI 200 model plus easy-to-read LCD display with Backlight, multiple
[TONE] signal detection (270 Hz, 330 Hz, 1 kHz, or 2 kHz), power saving feature, and [Set
Reference] feature. The OFI 400 model also measures and displays fiber core power or
relative power on an LCD display.
Both models are battery operated with the battery indication feature and perform thou-
sands of tests before batteries replacement is necessary.
OFI 200
continued on the next page
OFI 400