NI PXI-2521 Specifications 40-Channel DPST Relay Module This document lists specifications for the NI PXI-2521 general-purpose relay module. All specifications are subject to change without notice. Visit ni.com/manuals for the most current specifications. Caution The protection provided by the NI PXI-2521 can be impaired if it is used in a manner not described in this document. Topology... 40-channel DPST, non-latching Refer to the NI Switches Help for detailed topology information. About These Specifications Specifications characterize the warranted performance of the instrument under the stated operating conditions. 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, AC pk, or a combination unless otherwise specified. Caution Refer to the Read Me First: Safety and Electromagnetic Compatibility document for important safety and electromagnetic compatibility information. To obtain a copy of this document online, visit ni.com/manuals, and search for the document title. Caution To ensure the specified EMC performance, operate this product only with shielded cables and accessories. 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 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 (for example, wall outlets) of 115 or 230 VAC. Refer to the Read Me First: Safety and Electromagnetic Compatibility document for more information on measurement categories. Caution When hazardous voltages (>42.4 V pk /60 VDC) are present on any relay terminal, safety low-voltage ( 42.4 V pk /60 VDC) cannot be connected to any other relay terminal. Caution The switching power is limited by the maximum switching current, 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)...40 Minimum switching conditions... 20 mv/1 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...<0.5 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 (typical at 23 C)...12 μv Bandwidth (-3 db, 50 Ω termination, typical at 23 C) 1-wire... 30 MHz 2-wire... 25 MHz Crosstalk (typical at 23 C, 50 Ω termination) Channel-to-channel 10 khz... -75 db 100 khz... -50 db Isolation (typical at 23 C, 50 Ωtermination) Open channel 10 khz... 75 db 100 khz... 55 db 2 ni.com NI PXI-2521 Specifications
Dynamic Characteristics Relay operate time Typical... 1 ms Maximum... 3.4 ms Simultaneous drive limit... 40 relays Note Certain applications may require additional time for proper settling. For information about including additional settling time, refer to the NI Switches Help. Expected relay life Mechanical... 1 10 8 cycles Electrical (resistive) 30 V, 1 A... 5 10 5 cycles 30 V, 2 A... 1 10 5 cycles Note The relays used in the NI PXI-2521 are field replaceable. Refer to the NI Switches Help for information about replacing a failed relay. Trigger Characteristics Input trigger Sources... PXI trigger lines 0-7 Minimum pulse width... 150 ns Note The NI PXI-2521 can recognize trigger pulse widths less than 150 ns if you disable digital filtering. For information about disabling digital filtering, refer to the NI Switches Help. Output trigger Destinations... PXI trigger lines 0-7 Pulse width... Programmable (1 μs to 62 μs) Physical Characteristics Relay type... Electromechanical, non-latching Relay contact material... Palladium-ruthenium, gold covered I/O connector... 160 DIN 41612, 160 positions, male PXI power requirement... 7 W at 5 V, 2.5 W at 3.3 V NI PXI-2521 Specifications National Instruments 3
Dimensions (L W H)...3U, one slot, PXI/cPCI module 21.6 2.0 13.0 cm (8.5 0.8 5.1 in.) Weight...182 g (6.4 oz) Environment Operating temperature...0 C to 55 C Storage temperature...-20 C to 70 C Relative humidity...5% to 85% noncondensing Pollution Degree...2 Maximum altitude...2,000 m Indoor use only. 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 to 500 Hz, 0.3 g rms Nonoperating...5 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.) 4 ni.com NI PXI-2521 Specifications
Diagrams Figure 1 shows the NI PXI-2521 hardware diagram. Figure 1. NI PXI-2521 Power-On State K0 CH0+ CH0 COM0+ COM0 K1 CH1+ CH1 COM1+ COM1 K39 CH39+ CH39 COM39+ COM39 NI PXI-2521 Specifications National Instruments 5
6 ni.com NI PXI-2521 Specifications Figure 2 shows the NI PXI-2521 connector pinout. Figure 2. NI PXI-2521 Connector Pinout COM0 COM0+ B32 A32 C32 D32 E32 COM4+ COM1+ COM1 C31 D31 E31 COM4 CH1+ CH1 C30 D30 E30 CH4+ COM3+ COM3 C29 D29 E29 CH4 CH3+ CH3 C28 D28 E28 COM9+ COM6+ COM6 C27 D27 E27 COM9 CH6+ CH6 C26 D26 E26 CH9+ COM8+ COM8 C25 D25 E25 CH9 CH8+ CH8 C23 D23 E23 COM14 CH11+ CH11 C22 D22 E22 CH14+ COM13+ COM13 C19 D19 E19 COM19 CH16+ CH16 C18 D18 E18 CH19+ COM18+ COM18 C17 D17 E17 CH19 CH18+ CH18 CH0 CH0+ B31 A31 COM2 COM2+ A30 B30 CH2 COM2+ B29 A29 COM5 COM5+ B28 A28 CH5 CH5+ B27 A27 COM7 COM7 B26 A26 CH7 CH7+ B25 A25 COM10 COM10+ B24 A24 CH10 CH10+ A23 B23 COM12 COM12+ B22 A22 COM15 COM15+ B20 A20 CH15 CH15+ B19 A19 COM17 COM17+ B18 A18 CH17+ CH17 B17 A17 CH12 C12+ B21 A21 C24 D24 E24 COM14+ COM11+ COM11 C21 D21 E21 CH14 CH13+ CH13 C20 D20 E20 COM19+ COM16+ COM16 C16 D16 E16 C15 D15 E15 CH24 CH21+ CH21 C13 D13 E13 CH24+ CH23+ CH23 C11 D11 E11 COM29 CH26+ CH26 C10 D10 E10 CH29+ COM28+ COM28 C9 D9 E9 CH29 CH28+ CH28 C8 D8 E8 COM34+ COM31+ COM31 D7 E7 C7 COM34 CH31+ CH31 E6 C6 D6 CH34+ COM33+ COM33 C5 D5 E5 CH34 CH33+ CH33 C4 D4 E4 COM39+ COM36+ COM36 C3 D3 E3 COM39 CH36+ CH36 C2 D2 E2 CH39+ COM38+ COM38 C1 D1 E1 CH39 CH38+ CH38 COM20 COM20+ B16 A16 CH20 CH20+ B15 A15 COM22 COM22+ B14 A14 CH22 CH22+ B13 A13 COM25 COM25+ B12 A12 CH25 CH25+ B11 A11 COM27 COM27+ B10 A10 CH27 CH27+ B9 A9 COM30 COM30+ B8 A8 CH30 CH30+ B7 A7 COM32 COM32+ B6 A6 CH32 CH32+ B5 A5 COM35 COM35+ B4 A4 CH35 CH35+ B3 A3 COM37 COM37+ B2 A2 CH37 CH37+ B1 A1 C14 D14 E14 CH24 COM23+ COM23 C12 D12 E12 COM29+ COM26+ COM26 D17 E17 C16 COM21+ COM21 COM20 CH17+ A17 COM21+ COM21 COM24+
Accessories Visit ni.com for more information about the following accessories. Table 1. NI Accessories for the NI PXI-2521 Accessory Part Number DIN160 to 50 Pin DSUB switch cable, 1 m 782417-03 DIN160 to DIN160 switch cable, 1 m 782417-02 DIN160 to bare wire switch cable, 1 m 782417-01 Relay replacement kit 782461-10 Compliance and Certifications Safety This product meets 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 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 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. NI PXI-2521 Specifications National Instruments 7
Note For EMC declarations and certifications, and additional information, refer to the Online Product Certification section. 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) Online Product Certification To obtain product certifications and the Declaration of Conformity (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 products must be sent to a WEEE recycling center. For more information about WEEE recycling centers, National Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on Waste Electrical and Electronic Equipment, visit ni.com/environment/weee. RoHS National Instruments (RoHS) National Instruments RoHS ni.com/ environment/rohs_china (For information about China RoHS compliance, go to ni.com/environment/rohs_china.) LabVIEW, National Instruments, NI, ni.com, the National Instruments corporate logo, and the Eagle logo are trademarks of National Instruments Corporation. Refer to the Trademark Information at ni.com/trademarks for other National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patents Notice at ni.com/patents. You can find information about end-user license agreements (EULAs) and third-party legal notices in the NI-SWITCH Readme. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. 2013 National Instruments. All rights reserved. 373797A-01 Jan13