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| Function | Event blindness, low attenuation blindness Support for distance, attenuation, total loss and other parameters of the fiber optic link test Millisecond real-time test refresh rate Communication light automatic monitoring |
| Number of slots | 1/4Slots |
| Port | Provide 8 test interfaces, can access 8-core fiber optic link test |
| Dynamic range | ≥30dB |
| Maximum detection distance | ≥80km |
| Loss testing accuracy | ±0.5dB |
| Distance testing accuracy | ＜20米 |
