NF C93-903-3:2005 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-3 : examinations and measurements - Active monitoring of changes in attenuation and return loss.
2005NF C93-903-3:2005 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-3 : examinations and measurements - Active monitoring of changes in attenuation and return loss.
1997NF C93-903-3:1997 Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Part 3-3 : examinations and measurements. Monitoring change in attenuation and in return loss (multiple paths).