Table 2 Parameters specified for the optical interfaces of the CXLLN when the STM-4 optical module is used

ParameterValue

Nominal bit rate622080 kbit/s

Line code patternNRZ

Application codeI-4S-4.1L-4.1L-4.2Ve-4.2

Transmission distance (km)0 to 22 to 1515 to 4040 to 8080 to 100

Operating wavelength range (nm)1261 to 13601274 to 13561280 to 13351480 to 15801480 to 1580

Type of fiberSingle-mode LCSingle-mode LCSingle-mode LCSingle-mode LCSingle-mode LC

Mean launched optical power (dBm)-15 to -8-15 to -8-3 to 2-3 to 2-3 to 2

Receiver sensitivity (dBm)-23-28-28-28-34

Minimum overload (dBm)-8-8-8-8-13

Minimum extinction ratio (dB)8.28.2101010.5

Maximum -20 dB spectral width (nm)--111

Minimum side mode suppression ratio (dB)--303030