Fiber Identifier+Tone Generator/OFI-30A/AT

OFI-30A/AT can detect optical signal presence, type and direction anywhere on fibers during optical network deployment, maintenance and troubleshooting. With non-destructive macro-bend detection technology, it introduces no damage to tested fiber or interference to the service on fiber.
OFI-30A/AT Optical Fiber Identifier is an important tool for optical maintenance, which is used for nondestructive fiber identification work,
can be detect in any location of both SM and MM fiber. Meanwhile when you combined with OFI-30A/AT Optical Signal Generator,
which can realize lowfrequency signal online injection, and also realize to find a particular fiber online without modulation signal in optical fiber signal .
OFI-30A series is able to identify wide-spectrum signals (such as signals in CATV system) and can be used in SONET/SDH & DWDM systems tests. This tester is designed for machine room complex optical patch cords provides a good solution


● Low-frequency signal online injection
● Do not interfere with the online optical fiber
● Support a variety of optical fiber diameter
● Identify the signal automatically
● Simple, free training
● Non-destructive detection
● Indication of signal presence, strength and direction
● CW/MOD tones detection
● Buzzer indication
● Digital Display relative optical power
● Detected low-frequency signal emitted of OFI-30AT
● Handheld & sturdy


Identified Wavelength Range800~1700nm
Detector TypeInGaAs
Adapter TypeØ0.25 (Applicable for Bare Fiber);Ø0.9 (Applicable for Ø0.9 Cable );Ø2.0 (Applicable for Ø2.0 Cable ), Ø3.0 (Applicable for Ø3.0 Cable )
Identified Signal Type(HZ)CW,270,1K,2K
Signal DirectionLeft & Right LED
Signal Direction Test Range

(dBm, CW/3mm bare fiber)

-20~+10 (1310nm)
-30~+10 (1550nm)
Signal Power Test Range
(dBm, CW/3mm bare fiber)
Signal Frequency Display (Hz)270,1K,2K
Frequency Test Range
(dBm, Average Value)
Frequency Test Range
(dBm, Average Value)
0.8 (1310nm)
2.5 (1550nm)
 battery electric power displayPower double color LED
Weight (without batteries)<210g
Signal types1Hz low-frequency signal
Signal modeMechanical vibration
Insertion Loss<1dB(1310nm)
fiber diameter0.9/2/3mm
Weight (without batteries)<230g
General Specification
Alkaline Battery(V)9V
Operating Temperature(℃)0~+50
Storage Temperature(℃)-10~+70
Dimension (mm)209X33X31



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