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Detailed information of product:
 DT-681 Optical Fiber Identifier
is an essential installation and maintenance instrument. By inserting the fiber into its adapter head, it can identify SM optical fibers without any damage by detecting the optical signals being transmitted through them so as to avoid the opening of the fiber at the splice point for identification and thus avoids the interruption of the service.In the presence of traffic, the intermittently audible tone is activated.The DT-681 optical fiber identifier also allows relative core power display and identification of the 270Hz,1kHz and 2kHz frequencies. When they are used to detect the frequency, the continuously audible tone is activated.There are four types of adapter heads available: ?.25, ?.9, ?.0 and ?.0. The DT-681 optical fiber identifier is powered by a 9V alkaline battery.
Features
Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) without any damage of the fibers.
Displays the core power of the fibers (-50~+0dBm)
Low bending loss and highly efficient output
Easy-to-replace adaptors (Ø0.25, Ø0.9, Ø2.0, Ø3.0 to match various optical cables)
Machanical damp design of adapter heads to ensure the fiber without damage.
operation design, easy-to-sue
Applications
Maintenance in Telecom
Maintenance CATV
Test Lab of optical fibers
Other Fiber Optic Measurements
Specifications
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Identified Wavelength Range |
800－1700nm |
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Identified Signal Type |
CW, 270HZ±5%，1KHZ±5%，2KHZ±5% |
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Detector Type |
Ø1mm InGaAs 2pcs |
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Adapter Type(mm) |
Ø0.25(Applicable for Bare Fiber) |
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Ø0.9(Applicable for Ø0.9 Cable) |
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Ø2.0(Applicable for Ø2.0 Cable) |
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Ø3.0(Applicable for Ø3.0 Cable) |
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Signal Direction |
Left & Right LED |
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Optical Power Reading |
－50~+0dBm |
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Signal Frequency |
270Hz, 1KHz, 2KHz |
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Power Supply |
One 9V Alkaline Battery |
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Operating Temperatrue (°C) |
－10~+60 |
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Storage Temperatrue (°C) |
-25~+70 |
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Dimension (mm) |
195x30x27 |
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Weight（g） |
235 | |