Device Technology (Byte 147): Bits 7-4 (Device Technology): 0000: 850 nm VCSEL 0001:1310 nm VCSEL 0010:1550 nm VCSEL 0011: 1310 nm FP 0100:1310 nm DFB 0101:1550 nm DFB 0110: 1310 nm EML 0111: 1550 nm EML 1000: Copper or others 11001: 1490 nm DFB 1010: Copper cable un-equalized 1011: Copper cable passive equalized 1100: Copper cable near & far end active equalizers 1101: Copper cable, far end active equalizer 1110: copper cable, near end active equalizer 1111: Reserved Bit 3 (Wavelength Control): 0: No control 1: Active wavelength control Bit 2 (Transmitter cooling): 0: Uncooled transmitter 1: Cooled transmitter Bit 1 (Optical Detector): 0: P-I-N Detector 1: APD detector Bit 0 (Optical Tunability): 0: Transmitter not tunable 1:Transmitter tunable