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NI USB-9472 User Guide and Specifications 16 ni.com
I/O protection
Voltage ............................................30 V max
Reversed voltage .............................None
Trip currents
Minimum possible
trip current................................6 A
Minimum guaranteed
trip current................................13 A
Trip time..........................................10 μs at 13 A
Output delay time (full load) ..................100 μs max
Power Requirements
Current consumption from USB.............500 mA, max
Suspend mode..................................2.5 mA, max
Bus Interface
USB specification...................................USB 2.0 Hi-Speed
Physical Characteristics
Dimensions
With combicon ................................14.0 cm × 8.8 cm × 2.5 cm
(5.52 in. × 3.47 in. × 1.00 in.)
With D-SUB....................................12.6 cm × 8.8 cm × 2.5 cm
(4.95 in. × 3.47 in. × 1.00 in.)
Screw terminal wiring ............................12 to 24 AWG copper conductor
wire with 10 mm (0.39 in.) of
insulation stripped from the end
Torque for screw terminals.....................0.5–0.6 N · m (4.4–5.3 lb · in.)
Current Channel State Module State
0 to 1 A Channel does not trip Module is not damaged
1 to 6 A Channel does not trip Module may be damaged
6 to 13 A Channel may trip Module may be damaged
>13 A Channel trips Module is not damaged