The FiberHTT H9S5503-12 Transceiver is a high performance, cost effective module, which is compliant with Gigabit Ethernet and Standard of IEEE-802.3. This transceiver operates at the normal wavelength of 1550nm. The transmitter section incorporates an advanced DFB and driver IC with temperature compensation and automatic power control function. The receiver section incorporates an efficient InGaAs/InP APD photodiode and transimpedance with AGC for wide dynamic range. The transceiver has excellent immunity and reliability.