The BDTRP113L1SD-20 from Shanghai Baudcom Communication Device is a Fiber Optic Transceiver with Data Rate 155 Mb/s, Wavelength 1270 to 1360 nm (Tx), 1265 to 1600 nm (Rx), Distance/Reach 20 km, Output Power -12 to -5 dBm, Receiver Sensitivity -37 to -34 dBm. More details for BDTRP113L1SD-20 can be seen below.