©
National Instruments Corporation
11
BNC-9920 Operating Instructions and Specifications
Quadrature Encoder
Screw terminals......................................................2
Output signals
PULSES .........................................................96 pulses/revolution
UP/DN ...........................................................High for clockwise rotation,
low for counterclockwise rotation
Pulse width.............................................................1
μ
s
Power
Power requirement for +5 VDC (±5%) .................1 W (5 V at 200 mA), sourced from the included
external power supply
Power available at +5 V screw terminal ................1.5 W (5 V at 300 mA)
Physical
Dimensions ............................................................26.7 cm
×
11.2 cm
×
5.97 cm
(10.5 in.
×
4.41 in.
×
2.35 in.)
Weight ....................................................................1,040 g (2 lb 4.7 oz)
I/O connector .........................................................68-pin male SCSI-II type
BNC connectors .....................................................15
Screw terminal plugs..............................................31
Environment
Operating temperature ...........................................0 to 50
°
C
Storage temperature ...............................................–55 to 125
°
C
Relative humidity...................................................5 to 90%, noncondensing
Pollution Degree (indoor use only)........................2
Maximum altitude..................................................2,000 m
Safety
This product is designed to meet the requirements of the following standards of safety for electrical
equipment for measurement, control, and laboratory use:
•
IEC 61010-1, EN 61010-1
•
UL 61010-1, CSA 61010-1
Note
For UL and other safety certifications, refer to the product label or visit
ni.com/
certification
, search by model number or product line, and click the appropriate
link in the Certification column.
