 With regards to the construction of the sensing cable, although it is based on standard fibre optics, care must be taken in the design of the individual sensing cable to ensure that adequate protection is provided for the fibre.This must take into account operating temperature (standard cables operate to 85°C but it is possible to measure up to 700°C with the correct design), gaseous environment (hydrogen can cause deterioration of the measurement though "hydrogen darkening" - aka attenuation - of the silica glass compounds) and mechanical protection.Most of the available DTS systems have flexible system architectures and are relatively simple to integrate into industrial control systems such as SCADA.