... -known company product, circuit layout science, anti-interference ability;7. Dynamic LED the designator light, work condition be clear at a glance ... 2 ~ 5 km);Optical fiber (single mode) : 8/125,8.7/125, / 125, / 125 μ m (the longest distance 20 ~ 120 km ... : 0.9 us; Error rate: differentiable and do not remember,LED lamp: PWR, FX1 TP1 TP2 TP3 TP4 TP5 TP6 TP7 ...