National Instruments USB-6501 OEM Power Requirements, Physical Characteristics, Safety Standards, Overvoltage Protection

Power Requirements

USB

4.10 to 5.25 VDC............................80 mA typical, 500 mA max

USB Suspend..................................300 µA stan dby mode,

500 µAmax

Physical Characteristics

Dimensions ............................................5.74 cm × 6.73 cm × 1.15 cm

(2.26 in. × 2.65 in. × 0.45 in.)

I/O connectors........................................ USB series B receptacle; 34-pin

IDC ribbon cable header

Weight....................................................21 g (.74 oz)

SafetyStandards

The USB-6501 is designed to meet the requirements of the following

standards of safety for electrical equipment for measurement, control,

andlaboratory use:

• IEC 61010-1, EN 61010-1

• UL 61010-1

• CAN/CSA-C22.2 No. 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.

Overvoltage Protection

Connect only voltages that are within these limits.

Channel-to-COM (one channel).............±30 V max,

Measurement Category I

Channels-to-COM

(one port, all channels)...........................±8.9 V max,

Measurement Category I

Measurement Category I is for measurements performed on circuits not

directly connected to the electrical distribution system referred to as

MAINS voltage. MAINS is a hazardous live electrical supply system that

powers equipment. This category is for measurements of voltages from