Specifications for the NI PXI-2566
16-Channel SPDT Relay Module
This document lists specifications for the NI PXI-2566 general purpose
relay module. All specifications are subject to change without notice. Visit
ni.com/manuals for the most current specifications.
Configuration ......................................... 16-channel SPDT, non-latching
Input Characteristics
Maximum switching voltage
Channel-to-channel ......................... 150 VDC, 125 VAC, CAT I
Channel-to-ground .......................... 150 VDC, 125 VAC, CAT I
This module is rated for Measurement Category I and intended to carry signal
voltages no greater than 150 V. 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 (e.g., wall outlets) of 115 or 230 VAC.
Refer to the NI Switches Getting Started Guide for more information on measurement
categories.
Caution
When hazardous voltages (>42.4 Vpk/60 VDC) are present on any relay terminal, safety
low-voltage (<42.4 Vpk/60 VDC) cannot be connected to any other relay terminal.
Maximum switching current .................. 2 ADC, 2 AAC
(per channel)
Simultaneous channels at maximum
switching current (≤25 °C) .................... 16
Maximum carry current ......................... 5 ADC, 5 AAC
(per channel)
Simultaneous channels at maximum
carry current (≤25 °C)............................ 9
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names mentioned herein are trademarks or trade names of their respective companies. For patents covering
National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file
on your CD, or ni.com/patents.
ni.com
© 2003 National Instruments Corp. All rights reserved.
April 2003
323468A-01
Module Load Derating at >25 °C
Load derating is dependent on the ambient temperature and the sum of the
current squared of each channel simultaneously carrying a signal. The
result must fall within in the shaded region of Figure 1. The following
examples represent this calculation.
Example 1:
5 channels carry 4 A while
10 channels carry 2 A
(5 × 42) + (10 × 22) = 120 A
Example 1 can be used at ambient temperatures between 0 °C and 50 °C.
Example 2:
6 channels carry 5 A while
10 channels carry 2 A
(6 × 52) + (10 × 22) = 190 A
Example 2 can be used at ambient temperatures between 0 °C and 41 °C.
Power Load (Amps Squared x Channels)
250
200
150
100
50
0
0
10
20
30
40
50
60
Ambient Temperature (°C)
Figure 1. Module Load Derating
Specifications for the NI PXI-2566
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ni.com
Maximum switching power ................... 60 W, 62.5 VA (DC to 60 Hz)
(per channel)
DC path resistance
Initial ............................................... <0.1 Ω
End of life ....................................... ≥1.0 Ω
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 ......................................... <9 µV (typical at 23 °C)
Minimum switching capacity................. 10 µA at 10 mV DC
Bandwidth (–3 dB)................................. ≥70 MHz
–0.0
Channel 3
–0.5
Loss (dB)
–1.0
–1.5
70 MHz
–2.0
Channel 12
–2.5
–3.0
–3.5
–4.0
0
50
100
Frequency (MHz)
150
Figure 2. Insertion Loss Measured in a 50 Ω System
(Worst Case, Based on 30 Engineering DUTs)
© National Instruments Corporation
3
Specifications for the NI PXI-2566
Crosstalk (typical at 23 °C)
Channel-to-channel
10 kHz ...................................... ≤ –75 dB
100 kHz .................................... ≤ –65 dB
1 MHz....................................... ≤ –45 dB
10 MHz..................................... ≤ –25 dB
Isolation (typical at 23 °C)
Open channel
100 kHz .................................... ≥65 dB
1 MHz....................................... ≥45 dB
10 MHz..................................... ≥25 dB
Dynamic Characteristics
Maximum cycle speed ............................115 cycles/s
Relay operate time
Typical.............................................2 ms
Maximum ........................................4.4 ms
Expected relay life
Mechanical ......................................100,000,000 cycles
Electrical
30 VDC, 1 ADC resistive.........500,000 cycles
30 VDC, 2 ADC resistive.........100,000 cycles
125 VAC, 0.2 AAC resistive....300,000 cycles
125 VAC, 0.5 AAC resistive....100,000 cycles
Specifications for the NI PXI-2566
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ni.com
Trigger Characteristics
Input trigger
Sources............................................ PXI trigger lines 0–7,
Front panel
Minimum pulse width ..................... 150 ns
Front panel/terminal block input voltage
Minimum ................................. –0.5 V
VL maximum........................... +0.7 V
VH minimum ........................... +2.0 V
Nominal ................................... +3.3 V
Maximum................................. +5.5 V
Output trigger
Destinations .................................... PXI trigger lines 0–7,
Front panel
Pulse width...................................... Programmable (1 µs to 62 µs)
Front panel nominal voltage ........... 3.3 V TTL, 8 mA
Physical Characteristics
Relay type .............................................. Electromechanical, non-latching
Relay contact material............................ Gold clad silver alloy
I/O connectors ........................................ Two 62-pin DSubs
PXI power requirement .......................... 4.5 W at 5 V
2.5 W at 3.3 V
Dimensions (W × H × D) ....................... 3 cm × 10 cm × 16 cm
(0.8 in. × 3.9 in. × 6.3 in.)
Weight .................................................... 250 g
(9 oz)
© National Instruments Corporation
5
Specifications for the NI PXI-2566
Environment
Operating temperature ............................0 °C to 50 °C
Storage temperature ................................–20 °C to 70 °C
Relative humidity ...................................5% to 85% noncondensing
Pollution Degree .....................................2
Approved at altitudes up to 2,000 m
Accessories
Visit ni.com for more information about the following accessories.
Table 1. Accessories Available for the NI PXI-2566
Accessory
Note
Part Number
NI TB-2666 terminal block
778717-66
Backshell and connector kit
778720-01
The front connector is keyed and has pins removed for safety isolation.
Glossary
channel
a single SPDT (form C) relay. Each channel has three terminals—common
(COM), normally closed (NC), normally open (NO).
cycle
actuate a SPDT relay twice, leaving it in its original state
operate
actuate a SPDT relay once, leaving it in the opposite state
Specifications for the NI PXI-2566
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ni.com
K8
K0
NC0
NO0
COM0
NC8
NO8
COM1
NC9
NO9
COM2
NC10
NO10
COM3
NC11
NO11
COM4
NC12
NO12
COM5
NC13
NO13
COM6
NC14
NO14
COM7
NC15
NO15
COM8
K9
K1
NC1
NO1
COM9
K10
K2
NC2
NO2
COM10
K11
K3
NC3
NO3
COM11
K12
K4
NC4
NO4
COM12
K13
K5
NC5
NO5
COM13
K14
K6
NC6
NO6
COM14
K15
K7
NC7
NO7
COM15
Figure 3. NI PXI-2566 Power-On State
COM0
NO0
COM1
NO1
COM2
NO2
COM3
NO3
COM4
NO4
COM5
NO5
COM6
NO6
COM7
NO7
COM8
NO8
COM9
NO9
COM10
NO10
COM11
NO11
COM12
NO12
COM13
NO13
COM14
NO14
COM15
NO15
TB_EECLK
TB_EEOUT
TB_EEEN
+5V
TB_INTERLOCK
TRIG IN
22
43
23
44
24
45
25
46
26
47
27
48
28
49
29
50
30
51
31
52
32
53
33
54
34
55
35
56
36
57
37
58
60
40
61
41
62
42
1
2
3
NC0
NC1
NC2
4
NC3
5
NC4
6
NC5
7
NC6
8
NC7
9
NC8
10
NC9
11
NC10
12
NC11
13
NC12
14
NC13
15
NC14
16
19
20
21
NC15
TB_EEMOSI
GND
Low
Voltage
TRIG OUT
Figure 4. NI PXI-2566 Front Connector
© National Instruments Corporation
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Specifications for the NI PXI-2566
Compliance and Certifications
Safety
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control,
and laboratory use:
Note
•
IEC 61010-1, EN 61010-1
•
UL 3111-1, UL 61010B-1
•
CAN/CSA C22.2 No. 1010.1
For UL and other safety certifications, refer to the product label or to ni.com.
Electromagnetic Compatibility
Emissions................................................EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Immunity ................................................EN 61326:1997 + A2:2001,
Table 1
EMC/EMI ...............................................CE, C-Tick and FCC Part 15
(Class A) Compliant
Note
For EMC compliance, you must operate this device with shielded cabling.
CE Compliance
This product meets the essential requirements of applicable European
Directives, as amended for CE Marking, as follows:
Low-Voltage Directive (safety)..............73/23/EEC
Electromagnetic Compatibility
Directive (EMC) .....................................89/336/EEC
Refer to the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, click Declarations
of Conformity Information at ni.com/hardref.nsf/.
Note
*323468A-01*
323468A-01
Apr03