● SC / ST / FC / ST or FC pigtail pluggable optical interface, single-mode optical transceiver module ● Single + 3.3V / + 5V power supply ● interface levels compatible with standard TTL level CMOS level ad hoc ● Send enable control terminal, the effective closure of the emitted light power. ● emitting devices can be used for the operating wavelength of 1310nm or 1550nm FP, DFB lasers ● Unlike ordinary TTL modules transmit optical power control circuit adapted to a wide range of temperature changes. ● transmission distances of up to 130 kilometers ● provide industrial temperature standard products ● provide dual-fiber and single product ● Operating speed 1Mb / s-155Mb / s can be adapted to receive a planar structure ● InGaAsP PIN detector ● Standard data communication 1 × 9 pin package ● 155Mb / s and below rates, fiber access networks, especially for high-speed PDH system application