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NI 6509 User Guide and Specifications 26 ni.com
The total current sinking/sourcing from one port cannot exceed 100 mA.
Total current sourced by all DO lines simultaneously should not exceed
215 mA for bus-powered configuration. If more sourcing current is
required, use an optional external power supply
+5V power available at
I/O connector (pins 49 and 99)...............+4.1 to +5.2 V;
215 mA, maximum
(Bus-powered);
0.5 A, maximum (with
external power supply)
Note The I/O connector power has a fuse for overcurrent protection. This fuse is not
customer replaceable. If the fuse is blown, return the device to NI for repair.
Bus Interface
USB ........................................................USB 2.0 Hi-Speed or full-speed
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Power Requirement
USB
Input voltage....................................4.5 to 5.25 V in configured state
No load current................................150 mA, max
Maximum load current ....................500 mA, max
Suspend current...............................250 μA, typical
(no external supply)
External DC supply
Input voltage range..........................+12 V ±20%
Maximum input current...................1 A
Power input connector.....................DC input jack with threaded
locking ring, 0.08 in. (2 mm)
center pin
Power input mating connector.........Switchcraft S760K
Physical
Dimensions.............................................17.78 × 10.30 × 3.34 cm
(7.0 × 4.1 × 1.3 in.)
I/O connector..........................................100-pin female 0.050 series SCSI
Weight ....................................................Approx. 239 g (8.4 oz)
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If you are using the NI USB-6509 in full-speed mode, device performance is lower.