VIAVI FI-10/-11 Optical Fiber Identifiers – Handheld Live Fiber Identifiers
Handheld optical fiber identifiers that use non-destructive macro-bend detection to find live single-mode fibers from 850 to 1700 nm.
- Detection technique
- non-destructive macro-bending
- Typical loss
- <0.6 dB @ 1310 nm typical
- Spectral response
- 850 nm to 1700 nm
- Detector sensitivity (MDSP)
- -40 dBm typical (equivalent core power)
Overview
The VIAVI FI-10 and FI-11 are rugged, handheld installation and maintenance instruments that identify optical fibers by detecting the optical signals transmitted through a single-mode fiber. They use local detection technology based on non-destructive macro-bend detection, so the fiber does not have to be opened at the splice point for identification and the risk of interrupting service is avoided.
The probe is clamped onto a fiber and indicates whether there is no signal, a 270, 1000 or 2000 Hz modulated tone, or live traffic. Signals detected include continuous wave (CW), live optical transmission and low-frequency modulated tones. When traffic is present, LEDs on the probe indicate the direction of transmission.
The FI-11 adds core power measurement: the relative core power in the fiber is measured and shown on a two-digit, seven-segment LED display, which allows power loss through a splice or connector to be measured. It also provides a relative zero power reading.
The identifier was tested to Bellcore technical reference TR-NWT-000764 by attaching it to a bare 1" section of fiber 20 times; no microscopically visible damage to the fiber coating was found on old or new fibers. Interchangeable adapter heads accommodate jacketed, coated or ribbon fiber.
Tone identification with VIAVI light sources
Single-mode fibers can be identified using an OLS-35 or OLS-55 FP laser source, both of which provide tone modulation at 270 Hz, 1 kHz and 2 kHz. The recommended wavelength for tone identification is 1550 nm.
Models in this series
| Model | Description | |
|---|---|---|
| FI-10 |
VIAVI FI-10 Optical Fiber Identifier Handheld Live Fiber Identifier
Handheld optical fiber identifier that detects live traffic and 270 Hz, 1 kHz and 2 kHz tones using non-destructive macro-bend detection. |
Details → |
| FI-11 |
VIAVI FI-11 Optical Fiber Identifier with Core Power Display
Handheld optical fiber identifier that detects live traffic and tones by macro-bending and displays relative core power on a 2-digit LED display. |
Details → |
Key Features
- Non-destructive macro-bend detection, no need to open the fiber at the splice point
- Operates from 850 nm to 1700 nm
- Detection sensitivity of -40 dBm
- Bidirectional traffic indication
- High-intensity LED indication of active signal transmission
- Detects 270 Hz, 1000 Hz and 2000 Hz modulated tones
- Interchangeable adapter heads for jacketed, coated or ribbon fiber
- Compatible with most AT&T and Corning optical fiber
- Low-battery indication
- Operates with one hand
- Handheld, lightweight, rugged and battery-powered
- Core power measurement on a 2-digit LED display (FI-11)
- Relative zero power reading (FI-11)
- Attaches to belt or tool pouch (FI-11)
Specifications
| Detection technique |
non-destructive macro-bending
using Corning 1528 |
|---|---|
| Typical loss |
<0.6 dB @ 1310 nm typical
using Corning 1528 |
| Spectral response | 850 nm to 1700 nm |
| Detector sensitivity (MDSP) |
-40 dBm typical (equivalent core power)
Mean detectable signal power for single mode fiber at 1310 nm |
| Optical tone receiver | 270 Hz, 1 kHz, 2 kHz |
| Minimum fiber slack required for detection | 0.75 inches/19 mm |
|
Core power-reading
FI-11 |
0 to -40 dBm |
| Dual window single mode | 8 to 10 µm core diameter |
|---|---|
| Coating diameter | 250 µm diameter |
| Coating | High refractive index acrylate |
| Power | one 9 V Alkaline battery |
|---|---|
| Operation | approx. 10,000 readings |
| Operating temperature | -20 to +50°C |
|---|---|
| Storage temperature | -40 to +60°C |
| Humidity | 0 to 90% non-condensing |
| Length | 7.5 inches/190 mm |
|---|---|
| Width | 1 1/4 inches/32 mm |
| Depth | 1 inch/25 mm |
| Weight | 7.5 oz/213 grams |
|
FI-10 part number
FI-10 |
BN 2255/90.05
Includes fiber optic probe, carrying case, three interchangeable adapter heads and a 9 V battery |
|---|---|
|
FI-11 part number
FI-11 |
BN 2255/90.06
Includes fiber optic probe, carrying case, three interchangeable adapter heads and a 9 V battery |
Applications
- Live fiber identification
- Fiber isolation during maintenance, installation, rerouting and restoration
- Modulated tone detection at 270 Hz, 1000 Hz and 2000 Hz
- Core power measurement (FI-11)
- Power loss measurement through a splice or connector (FI-11)
Options & Accessories
| Option | Description |
|---|---|
| BN 2255/90.10 | 2 mm adapter — Optional head with 2 mm groove |