Drop test

Onto plywood

While turned off, the device is dropped once from a height of 90 cm onto plywood on each face, side and corner for a total of 26 drops.

Onto concrete

While turned off, the device is dropped once from a height of 90 cm onto concrete on each face for a total of 6 drops.

Vibration test

Sine wave vibration (vibration time 56 minutes)

While turned on, the device is subjected to vibration at the following frequencies: 10 – 55

Hz: 0.075 mm (0-P), 55 Hz – 500 Hz: 9.8 m/s2 (0-P).

While turned off, the device is subjected to vibration at the following frequencies: 10 – 55

Hz: 0.15 mm (0-P), 55 Hz – 500 Hz: 19.6 m/s2 (0-P).

Random wave vibration (vibration time 60 minutes)

While turned off, the device is subjected to vibration at the following frequencies: 20 Hz

1000 Hz: 0.04 G2.Hz, 1000 Hz 2000 Hz: -6dB/Octave.

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NEC FC-N21S, FC-Note Series specifications