National Instruments PXI-2568 Manuale utente
DEVICE SPECIFICATIONS
NI PXI-2568
31-Channel SPST Relay Module
This document lists specifications for the NI PXI-2568 (PXI-2568) general-purpose relay
module. All specifications are subject to change without notice. Visit ni.com/manuals for the
most current specifications.
Contents
About These Specifications...................................................................................................... 1
Input Characteristics......................................................................................................... 2
Dynamic Characteristics................................................................................................... 3
Trigger Characteristics...................................................................................................... 4
Physical Characteristics.................................................................................................... 4
Environment......................................................................................................................4
Shock and Vibration..........................................................................................................5
Compliance and Certifications..........................................................................................5
Diagrams................................................................................................................................... 7
Accessories................................................................................................................................8
About These Specifications
Specifications characterize the warranted performance of the instrument under the stated
operating conditions. Data in this document are Specifications unless otherwise noted.
Typical Specifications are specifications met by the majority of the instrument under the stated
operating conditions and are tested at 23 °C ambient temperature. Typical specifications are
not warranted.
All voltages are specified in DC, ACpk, or a combination unless otherwise specified.
Topology 31-SPST (form A, latching), 15-DPST
Refer to the NI Switches Help at ni.com/manuals for detailed topology information.
Caution The protection provided by the PXI-2568 can be impaired if it is used in a
manner not described in this document.
Input Characteristics
Maximum switching voltage
Channel-to-channel 150 V
Channel-to-ground 150 V, CAT I
Caution This module is rated for Measurement Category I. It is intended to carry
signal voltages no greater than 100 Vrms, 150 Vpk, or 150 VDC. This module can
withstand up to 800 V impulse voltage. Do not use this module for connection to
signals or for measurements within Categories II, III, or IV. Do not connect to
MAINS supply circuits (for example, wall outlets) of 115 VAC or 230 VAC.1
Caution When hazardous voltages (>42.4 Vpk/60 V DC) are present on any
channel, safety low-voltage (≤42.4 Vpk/60 V DC) cannot be connected to any other
channel.
Caution The switching power is limited by the maximum switching current and
the maximum voltage and must not exceed 60 W, 62.5 VA.
Maximum switching power (per channel) 60 W, 62.5 VA (DC to 60 Hz)
Maximum current (switching or carry, per
channel)
2 A
Simultaneous channels at maximum
current (≤55 °C)
31
Minimum switch load 20 mV/10 mA
Note Switching inductive loads (for example, motors and solenoids) can produce
high voltage transients in excess of the module’s rated voltage. Without additional
protection, these transients can interfere with module operation and impact relay life.
For more information about transient suppression, visit ni.com/info and enter the
Info Code relayflyback.
DC path resistance
Initial <0.15 Ω
End of life >1.0 Ω
1Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are
not intended for direct connection to the MAINS building installations of Measurement Categories
CAT II, CAT III, or CAT IV.
2| ni.com | NI PXI-2568 Specifications
DC path resistance typically remains low for the life of the relay. At the end of relay life, the
path resistance rises rapidly above 1 Ω. Load ratings apply to relays used within the
specification before the end of relay life.
Thermal EMF ≤12 μV, typical
Bandwidth (-3 dB, 50 Ω termination) ≥40 MHz, typical
Crosstalk (50 Ω termination, channel-to-channel)
10 kHz ≤-85 dB, typical
100 kHz ≤-70 dB, typical
1 MHz ≤-50 dB, typical
10 MHz ≤-30 dB, typical
Isolation (50 Ω termination, open channel)
10 kHz ≥85 dB, typical
100 kHz ≥65 dB, typical
1 MHz ≥45 dB, typical
10 MHz ≥25 dB, typical
Dynamic Characteristics
Maximum cycle speed 145 cycles/s
Relay operate time 1 ms, typical
3.4 ms maximum
Note Certain applications may require additional time for proper settling. Refer to
the NI Switches Help at ni.com/manuals for more information about including
additional settling time.
Expected relay life
Mechanical 1 × 108 cycles
Electrical
10 VDC, 100 mADC resistive 2.5 × 106 cycles
10 VDC, 1 ADC resistive 1 × 106 cycles
30 VDC, 1 ADC resistive 5 × 105 cycles
30 VDC, 2 ADC resistive 1 × 105 cycles
Note Relays are field replaceable. Refer to the NI Switches Help at ni.com/manuals
for more information about replacing a failed relay.
NI PXI-2568 Specifications | © National Instruments | 3
Trigger Characteristics
Input trigger
Sources PXI trigger lines <0...7>
Minimum pulse width 150 ns
Note The PXI-2568 can recognize trigger pulse widths less than 150 ns if you
disable digital filtering. Refer to the NI Switches Help at ni.com/manuals for
information about disabling digital filtering.
Output trigger
Destinations PXI trigger lines <0...7>
Pulse width Programmable (1 µs to 62 µs)
Physical Characteristics
Relay type Electromechanical, latching
Relay contact material Palladium-ruthenium, gold covered
I/O connector 62-pin D-SUB, male
PXI power requirement 6 W at 5 V, 2.5 W at 3.3 V
Dimensions (L × W × H) 3U, one slot, PXI/cPCI module,
21.6 cm × 2.0 cm × 13.0 cm
(8.5 in. × 0.8 in. × 5.1 in.)
Weight 227 g (8 oz)
Environment
Maximum altitude 2,000 m (at 25 °C ambient temperature)
Pollution Degree 2
Indoor use only.
Operating Environment
Ambient temperature range 0 °C to 55 °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.)
4| ni.com | NI PXI-2568 Specifications
Storage Environment
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.)
Shock and Vibration
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, 0.31 grms (Tested in
accordance with IEC 60068-2-64.)
Nonoperating 5 Hz to 500 Hz, 2.46 grms (Tested in
accordance with IEC 60068-2-64. Test profile
exceeds the requirements of MIL-PRF-28800F,
Class 3.)
Compliance and Certifications
Safety
This product is designed to meet the requirements of the following electrical equipment safety
standards 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
This product meets the requirements of the following EMC standards for electrical equipment
for measurement, control, and laboratory use:
• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
• EN 55011 (CISPR 11): Group 1, Class A emissions
• AS/NZS CISPR 11: Group 1, Class A emissions
NI PXI-2568 Specifications | © National Instruments | 5
• FCC 47 CFR Part 15B: Class A emissions
• ICES-001: Class A emissions
Note In the United States (per FCC 47 CFR), Class A equipment is intended for
use in commercial, light-industrial, and heavy-industrial locations. In Europe,
Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended
for use only in heavy-industrial locations.
Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical
equipment that does not intentionally generate radio frequency energy for the
treatment of material or inspection/analysis purposes.
Note For EMC declarations and certifications, refer to the Online Product
Certification section.
CE Compliance
This product meets the essential requirements of applicable European Directives, as follows:
• 2014/35/EU; Low-Voltage Directive (safety)
• 2014/30/EU; Electromagnetic Compatibility Directive (EMC)
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance
information. To obtain product certifications and the DoC for this product, visit ni.com/
certification, search by model number or product line, and click the appropriate link in the
Certification column.
Environmental Management
NI is committed to designing and manufacturing products in an environmentally responsible
manner. NI recognizes that eliminating certain hazardous substances from our products is
beneficial to the environment and to NI customers.
For additional environmental information, refer to the Minimize Our Environmental Impact
web page at ni.com/environment. This page contains the environmental regulations and
directives with which NI complies, as well as other environmental information not included in
this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of the product life cycle, all NI products must be
disposed of according to local laws and regulations. For more information about
how to recycle NI products in your region, visit ni.com/environment/weee.
电子信息产品污染控制管理办法（中国 RoHS）
中国客户 National Instruments 符合中国电子信息产品中限制使用某些有害物
质指令(RoHS)。关于 National Instruments 中国 RoHS 合规性信息，请登录
6| ni.com | NI PXI-2568 Specifications
ni.com/environment/rohs_china。(For information about China RoHS
compliance, go to ni.com/environment/rohs_china.)
Diagrams
The following figure shows the PXI-2568 power-on state diagram.
Figure 1. PXI-2568 Power-on State
COM3
CH3
COM2
CH2
COM1
CH1
COM0
CH0
COM30
CH30
K0
K1
K2
K3
K30
The following figure shows the PXI-2568 connector pinout.
NI PXI-2568 Specifications | © National Instruments | 7
Figure 2. PXI-2568 Connector Pinout
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
COM0
COM2
COM3
COM5
COM6
COM8
COM9
COM11
COM12
COM14
COM15
COM17
COM18
COM20
COM21
COM23 58
60
61
40
41
42
62
COM28
22
23
24
25
CH0
COM1
CH3
COM4
CH6
COM7
CH9
COM10
CH12
COM13
CH15
COM16
CH18
COM19
CH21
COM22
26
27
28
29
30
31
32
33
34
35
36
37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CH1
CH2
CH4
CH5
CH7
CH8
CH10
CH11
CH13
CH14
CH16
CH17
CH19
CH20
CH22
CH23
19
20
21
CH29
COM26
COM27
COM30
CH27
COM29
CH28
CH30
17
18
CH25
CH26
CH24
COM25
38
39
59
COM24
Note For topology-specific connection information, refer to your device in the NI
Switches Help at ni.com/manuals and associated cable or terminal block installation
instructions.
Accessories
Visit ni.com for more information about the following accessories.
Table 1. NI Accessories for the PXI-2568
Accessory Part Number
62-pin female-to-female shielded D-SUB cable 779956-01
NI TBX-62 62-pin D-SUB screw terminal block 779957-01
Caution You must install mating connectors according to local safety codes and
standards and according to the specifications provided by the connector
8| ni.com | NI PXI-2568 Specifications
manufacturer. You are responsible for verifying safety compliance of third-party
connectors and their usage according to the relevant standard(s), including UL and
CSA in North America and IEC and VDE in Europe.
Table 2. Third-Party Accessory for the PXI-2568
Accessory Description Manufacturer
Mating front panel connector 262-position D-SUB, female Any
2PCB mount, additional cover, or enclosure required.
NI PXI-2568 Specifications | © National Instruments | 9
Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on NI trademarks. Other product and
company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI
products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the
National Instruments Patent Notice at ni.com/patents. You can find information about end-user license agreements (EULAs)
and third-party legal notices in the readme file for your NI product. Refer to the Export Compliance Information at ni.com/
legal/export-compliance for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other
import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION
CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S. Government Customers: The data contained in
this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth
in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.
© 2004—2016 National Instruments. All rights reserved.
373787H-01 Jul16
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