The BDTRP695S2SD-40 from Shanghai Baudcom Communication Device is a Fiber Optic Transceiver with Data Rate 2.125 to 2.5 Gb/s, Wavelength 1490 to 1550 nm, Distance/Reach 40 km, Output Power -2 to 3 dBm, Receiver Sensitivity -20 dBm. More details for BDTRP695S2SD-40 can be seen below.