Multifunction_RIO_Specs.pdf - 第7页

© National Instruments Cor poration 7 Multifunction Reconf igurable I/O Specifications To calculate the total current so ur ced by the digital outputs, use the following equation: Power available at I/O connectors .. 4.5…

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Multifunction Reconfigurable I/O Specifications 6 ni.com
Timebase reference sources
PCI-781x/783x ............................Onboard clock only
PCIe-784x/785x ..........................Onboard clock only
PXI-78xx .....................................Onboard clock,
phase-locked to PXI
10 MHz clock
Timebase accuracy,
onboard clock ..................................±100 ppm, 250 ps
peak-to-peak jitter
Phase locked to PXI 10 MHz
Clock (PXI-78xx only) ....................Adds 350 ps
peak-to-peak jitter
Additional frequency-dependent peak-to-peak jitter
NI 781x/783x
40 MHz...................................None
80 MHz...................................400 ps
120 MHz.................................720 ps
160 MHz.................................710 ps
200 MHz.................................700 ps
NI 784x/785x
40 MHz...................................None
80 MHz...................................460 ps
120 MHz.................................172 ps
160 MHz.................................172 ps
200 MHz.................................152 ps
Calibration (NI 783x /784x /785x Only)
Recommended warm-up time .........15 minutes
Calibration interval..........................1 year
Onboard calibration reference
DC level ......................................5.000 V (±3.5 mV)
(actual value stored
in Flash memory)
Temperature coefficient..............±5 ppm/°C max
Long-term stability .....................±20 ppm/
Note Refer to Calibration Certificates at
ni.com/calibration to generate a calibration
certificate for the NI 78xx.
Bus Interface
PCI/PCIe/PXI.................................. Master, slave
Data transfers .................................. DMA, interrupts,
programmed I/O
Number of DMA channels.............. 3
Power Requirement
+5 VDC (±5%)
1
NI 781x ....................................... 9 mA typ
NI 7830/7831.............................. 330 mA typ
NI 7833....................................... 364 mA typ
PXI-7841/7851 ........................... 125 mA typ
PXI-7842/7852 ........................... 136 mA typ
NI 7853....................................... 460 mA typ
NI 7854....................................... 484 mA typ
+3.3 VDC (±5%)
2
NI 7811....................................... 650 mA typ
NI 7813....................................... 850 mA typ
NI 7830/7831.............................. 462 mA typ
NI 7833....................................... 727 mA typ
PCIe-7841/7851 ......................... 847 mA typ
PCIe-7842/7852 ......................... 984 mA typ
PXI-7841/7851 ........................... 525 mA typ
PXI-7842/7852 ........................... 604 mA typ
NI 7853....................................... 640 mA typ
NI 7854....................................... 843 mA typ
+12 V
NI 784x/785x .............................. 0.5 A
–12 V
PXI-784x/785x ........................... 0.25 A
+5V terminal
Connector 0 ................................ 0.5 A max
3
Connector 1 ................................ 0.5 A max
3
Connector 2 ................................ 0.5 A max
3
All connectors ............................ 1.5 A max
3, 4
1,000 h
1
Does not include current drawn from the +5 V line on the I/O connectors.
2
Does not include current sourced by the digital outputs.
3
(PCIe-78xx only) Total maximum terminal current for all connectors is 100 mA unless disk drive connector is attached.
4
(NI 784x /785x only) The NI 784x/785x has a user-replaceable socketed fuse that opens when current exceeds the current
specification. Refer to the Multifunction Reconfigurable I/O User Manual, available at
ni.com/docs, for information about
fuse replacement.
© National Instruments Corporation 7 Multifunction Reconfigurable I/O Specifications
To calculate the total current sourced by the digital outputs,
use the following equation:
Power available at I/O connectors
.. 4.50 to 5.25 VDC at 1 A
total, 250 mA per I/O
connector pin
Physical
Dimensions (not including connectors)
PCI-781x/783x............................ 17 cm by 11 cm
(6.7 in. by 4.3 in.)
PCIe-784x/785x .......................... 17 cm by 11 cm
(6.7 in. by 4.3 in.)
PXI-78xx..................................... 16 cm by 10 cm
(6.3 in. by 3.9 in.)
Weight
PCI-781x/783x............................ 112 g
PCIe-784x/785x .......................... 127 g
PXI-78xx..................................... 152 g
I/O connectors
NI 781x ....................................... Four 68-pin female
high-density VHDCI type
NI 7830....................................... Two 68-pin female
high-density VHDCI type
NI 783x/784x/785x ..................... Three 68-pin female
high-density VHDCI type
Disk drive power connector
(PCIe devices)................................. Standard ATX peripheral
connector (not serial
ATA)
Maximum Working Voltage
(NI 783x /784x /785x Only)
Maximum working voltage refers to the signal voltage plus the
common-mode voltage.
Channel-to-earth ............................. ±12 V, Measurement
Category I
Channel-to-channel......................... ±24 V, Measurement
Category I
Caution Do not use the NI 783x/784x/785x for
connection to signals in Measurement Categories II,
III, or IV.
Environmental
The NI 78xx is intended for indoor use only.
Operating Environment
NI 781x ............................................0 °C to 55 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
NI 7830, NI 7831
40 MHz or 80 MHz timebase .....0 °C to 55 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
PCI/PXI-7833
40 MHz timebase ........................0 °C to 55 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
80 MHz timebase ........................0 °C to 55 °C except the
following: 0 °C to 45 °C
when installed in an
PXI-1000/B or
PXI-101X,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
PXI-7841/7842/7851/7852/7853/7854
40 MHz timebase ........................0 °C to 55 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
80 MHz timebase ........................0 °C to 55 °C except the
following: 0 °C to 45 °C
when installed in an
PXI-1000/B or
PXI-101X,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
PCIe-7841/7842/7851/7852
40 MHz or 80 MHz timebase .....0 °C to 40 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
Relative humidity range ..................10% to 90%,
noncondensing,
tested in accordance with
IEC-60068-2-56.
Altitude............................................2,000 m at 25 °C ambient
temperature
current sourced on channel i
i 1=
j
Multifunction Reconfigurable I/O Specifications 8 ni.com
Storage Environment
PCI/PXI-781x/783x .........................–20 °C to 70 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
PCIe-784x/785x ...............................–20 °C to 70 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
PXI-784x/785x.................................–40 °C to 70 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
Ambient temperature range.............–20 °C to 70 °C,
tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2.
Relative humidity range ..................5% to 95%,
noncondensing,
tested in accordance with
IEC-60068-2-56.
Note Clean the device with a soft, non-metallic
brush. Make sure that the device is completely dry
and free from contaminants before returning it to
service.
Shock and Vibration (for PXI-78xx Only)
Operational shock............................30 g peak, half-sine,
11 ms pulse;
tested in accordance with
IEC-60068-2-27. Test
profile developed in
accordance with
MIL-PRF-28800F.
Random vibration
Operating ....................................5 Hz to 500 Hz, 0.3 g
rms
Nonoperating ..............................5 Hz to 500 Hz, 2.4 g
rms
,
tested in accordance with
IEC-60068-2-64.
Nonoperating test profile
exceeds the requirements
of MIL-PRF-28800F,
Class 3.
Safety
The NI 78xx 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 the Online Product
Certification section.
Electromagnetic Compatibility
The NI 78xx is designed to meet the requirements of the
following standards of EMC for electrical equipment for
measurement, control, and laboratory use:
• EN 61326 (IEC 61326): Class A emissions;
Basic immunity
• EN 55011 (CISPR 11): Group 1, Class A emissions
• AS/NZS CISPR 11: Group 1, Class A emissions
• FCC 47 CFR Part 15B: Class A emissions
• ICES-001: Class A emissions
Note For the standards applied to assess the EMC
of this product, refer to the Online Product
Certification section.
Note For EMC compliance, operate this device
with shielded cabling.
CE Compliance
This product meets the essential requirements of applicable
European Directives as follows:
• 2006/95/EC; Low-Voltage Directive (safety)
• 2004/108/EC; Electromagnetic Compatibility Directive
(EMC)