National Instruments PXI-2503 Manuale utente

NI PXI-2503 Specifications

24-Channel Relay Multiplexer/Matrix

This document lists specifications for the NI PXI-2503 multiplexer/matrix

module. All specifications are subject to change without notice. Visit

ni.com/manuals for the most current specifications.

Configurations........................................ 48 ×1, 1-wire multiplexer

24 ×1, 2-wire multiplexer

Dual 12 ×1, 2-wire multiplexers

Quad 6 ×1, 2-wire multiplexers

12 ×1, 4-wire multiplexer

4×6, 2-wire matrix

Input Characteristics

All input characteristics are DC, ACrms, or a combination, unless otherwise

specified.

Maximum switching voltage.................. 30 VAC, 60 VDC

(channel-to-channel and channel-to-ground)

Maximum switching current .................. 1 A

(per channel)

Maximum carry current ......................... 1 A

(per channel)

Maximum switching power ................... 30 W

(per channel)

NI PXI-2503 Specifications 2 ni.com

DC path resistance

Initial................................................<1 Ω

End of life ........................................>2 Ω

Path resistance is a combination of relay contact resistance and trace

resistance. Contact resistance typically remains low for the life of a relay.

At the end of relay life, the contact resistance rapidly rises above 1.0 Ω.

Thermal EMF (differential) ....................<2 µV

RF Performance Characteristics

Typical bandwidth ..................................≥10 MHz

(50 Ωtermination)

Typical channel-to-channel isolation

(50 Ωtermination)

10 kHz .............................................>100 dB

100 kHz ...........................................>80 dB

1 MHz..............................................>55 dB

10 MHz............................................>30 dB

Dynamic Characteristics

Scan rate .................................................200 cycles/s, typical

Relay operate time (at 20 °C) .................3 ms typical, 5 ms maximum

Release time (at 20 °C)...........................1.5 ms typical, 5 ms maximum

Expected relay life

Mechanical ......................................50,000,000 cycles

Electrical..........................................2,000,000 cycles

(maximum load)

©National Instruments Corporation 3 NI PXI-2503 Specifications

Trigger Characteristics

Input trigger

Sources............................................ PXI trigger lines 0–7,

Front panel

Minimum pulse width

PXI trigger lines....................... 70 ns

Front panel............................... 500 ns

Output trigger

Destinations .................................... PXI trigger lines 0–7,

Front panel

Pulse width...................................... 1 µs

Physical Characteristics

Relay type .............................................. Electromechanical, nonlatching

I/O connector.......................................... 68-pin male SCSI

Power requirement

+5 VDC........................................... 370 mA typical,

700 mA maximum

Contact material ..................................... Gold-clad silver alloy

Dimensions (W ×H ×D) ....................... 2.0 cm ×10.0 cm ×16.3 cm

(0.8 in. ×3.9 in. ×6.4 in.)

Weight.................................................... 250 g

(9 oz)

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

Indoor use only

NI PXI-2503 Specifications 4 ni.com

Accessories

Visit ni.com for more information about the following accessories.

Table 1. Accessories Available for the NI PXI-2503

Accessory Part Number

NI TB-2605 terminal block

(48 ×1, 1-wire multiplexer)

(24 ×1, 2-wire multiplexer)

(12 ×1, 4-wire multiplexer)

777878-01

NI TB-2606 terminal block

(4 ×6, 2-wire matrix)

777879-01

TBX-68S terminal block with

cold-junction sensor

777716-01

CB-68LB screw terminal block 777145-01

1 m SH68-68S shielded cable 185262-01

2 m SH68-68S shielded cable 185262-02

5 m SH68-68S shielded cable 185262-05

©National Instruments Corporation 5 NI PXI-2503 Specifications

Figure 1. NI PXI-2503 Hardware Diagram

CH11+

CH11–

CH10+

CH10–

CH9+

CH9–

CH8+

CH8–

CH7+

CH7–

CH6+

CH6–

CH5+

CH5–

CH4+

CH4–

CH3+

CH3–

CH2+

CH2–

CH1+

CH1–

CH0+

CH0–

CH12+

CH12–

CH13+

CH13–

CH14+

CH14–

CH15+

CH15–

CH16+

CH16–

CH17+

CH17–

CH18+

CH18–

CH19+

CH19–

CH20+

CH20–

CH21+

CH21–

CH22+

CH22–

CH23+

CH23–

CJS+

CJS–

1-Wire Lo Ref

COM1+

COM1–

AB0+

AB0–

COM0+

COM0–

AB1+

AB1–

COM2+

COM2–

Bank1

BC01

BC02

BC23

AB0

1WIRE

HLSELECT Bank0

Bank2

Bank3

COM3+

COM3–

NI PXI-2503 Specifications 6 ni.com

Compliance and Certifications

Safety

This product meets the requirements of the following standards for safety

and electrical equipment for measurement, control, and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 3111-1, UL 61010B-1

• CAN/CSA C22.2 No. 1010.1

Note For UL and other safety certifications, refer to the product label, or visit

ni.com/hardref.nsf, search by model number or product line, and click the

appropriate link in the Certification column.

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

Note Refer to the Declaration of Conformity (DoC) for this product for any additional

regulatory compliance information. To obtain the DoC for this product, visit

ni.com/hardref.nsf, search by model number or product line, and click the

appropriate link in the Certification column.

National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation.

Product and company 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.

323533B-01 Dec03

*323533B-01*

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