Product manual

Specifications

Power Specifications

The following table lists the power specifications for the internal Scorpion 40 drives.

Specification +12 VDC supply +5 VDC supply

Voltage Tolerance + or – 10% + or – 7%

Operational Current 250 milliamps max 1.35 Amps max

Standby Current 15 milliamps max 1.2 Amps max

Surge (peak) 600 milliamps max 1.5 Amps max

Ripple (peak-to-peak)

≤

100 mV

≤

100 mV

Total power consumption for the Scorpion 40 (including both the +5V and +12V

power supplies) is as follows:

Standby Power 6.0 Watts max

Operating Power 9.0 Watts typical, 10.0 Watts max

Surge (start up) 14.0 Watts max

Note: Surge power and current are measured over a 20-msec period.

The following table lists pin assignments of the power connector for the internal

Scorpion 40.

Pin Assignment

1 +12 VDC

2 +12 return

3 +5 return

4 +5 VDC

The external drives have a built-in power supply that senses the incoming voltage

and automatically adapts to voltages within the range of 100 to 240 volts, 50 to 60

Hz. The following table lists its power specifications.

Specification AC Input Voltage

100 (Japan) 120 (US) 240 (European)

AC Input Current 100 milliamps 85 milliamps 170 milliamps

AC Input Power 10.0 watts 10.0 watts 10.0 watts

Note: The drive employs a power sensing circuit that automatically detects a loss

of supply voltage from the host. Temporary loss of supply voltage or voltage

spikes may result in the drive electronics being reset to their initialized state,

but shall under no circumstances result in a loss of recorded data.