PXI-2543 Specifications

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Updated2025-05-22
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PXI-2543 Specifications

This document lists specifications for the PXI-2543. All specifications are subject to change without notice.

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, AC_pk, or a combination unless otherwise specified.

Caution The protection provided by the PXI-2543 can be impaired if it is used in a manner not described in this document.

Note Device relays might change state momentarily during electrostatic discharge.

PXI-2543 Pinout

Table 1. Signal Descriptions
Signal	Description
CHxA	Bank A signal connection
CHxB	Bank B signal connection
COMx	Routing destination for channels on the corresponding bank
TRIG IN	Trigger input connection
TRIG OUT	Trigger output connection

Topology

Dual 4 × 1 multiplexers

Input Characteristics

Minimum input frequency	10 MHz
Characteristic impedance (Z₀)	50 Ω, nominal
Coupling	AC
Maximum safe DC input voltage	±8 V

Maximum Safe Continuous RF Power

Note

NI recommends against switching active RF signals. As a relay actuates, the channel is momentarily unterminated. Some RF sources can be damaged by reflections if their outputs are not properly terminated. Refer to your RF source documentation for more information.

Chassis power ON	+30 dBm
Chassis power OFF	+20 dBm

RF Performance Characteristics

Insertion loss

≤2.4 GHz

<4.1dB

<3.4 dB, typical

≤6 GHz

<5.8 dB

<5.1 dB, typical

≤6.6 GHz

<7.0 dB

<6.1 dB, typical

Insertion loss thermal coefficient

α = 2050 ppm/°C

Use the following equation to calculate the insertion loss at a given temperature:

I L_{T}^{} = I L {_{T}^{}}_{0}^{} (1 + α (T - T_{0}^{}))

I L_{T}^{} = I L {_{T}^{}}_{0}^{} (1 + α (T - T_{0}^{}))

where

IL is insertion loss in dB
T is the temperature at which the property is being measured in °C
T₀ is the reference temperature in °C
α represents the insertion loss temperature coefficient in ppm/°C

Voltage standing wave ratio (VSWR)

≤2.4 GHz

<1.7

<1.5, typical

≤6 GHz

<1.8

<1.5, typical

≤6.6 GHz

<2.4

<1.6, typical

CH-COM isolation

≤2.4 GHz

>70 dB

>84 dB, typical

≤6 GHz

>61 dB

>74 dB, typical

≤6.6 GHz

>59 dB

<72 dB, typical

CH-CH isolation

≤2.4 GHz

>69 dB

>90 dB, typical

≤6 GHz

>58 dB

>74 dB, typical

≤6.6 GHz

>53 dB

<71 dB, typical

Bank-to-bank crosstalk

<-90 dB, typical

Channel-to-channel skew

<10 ps, typical

Propagation delay

1,720 psi, typical

Input 1 dB Compression

>27.6 dBm, minimum

>32.0 dBm, typical

Linearity

Second-order harmonic distortion (Input IP2 (IIP2))^[1]¹ Measurements are performed with single CW tones, ranging from -26 dBm to +10 dBm at the RF input. This specification is based on both experimental and calculated data.
IP2 (input)	>+89 dBm, typical

Third-order intermodulation distortion (Input IP3 (IIP3))^[2]² Measurements performed with two 10 dBm input tones = 1 MHz apart. This specification is based on both experimental and calculated data.
IP3 (input)	>+54 dBm, typical

Dynamic Characteristics

Maximum switch operate time^[3]³ Switch operate time is defined as the time from TRIG IN falling to 10% to when the output reaches 90% of final value.^[4]⁴ Certain applications may require additional time for proper settling. For information about including additional settling time, refer to the NI Switches Help.

76 μs

Trigger Characteristics

Input trigger
Sources	PXI trigger lines <0...7>
Minimum pulse width^[5]⁵ The PXI-2543 recognizes trigger pulse widths less than 150 ns if digital filtering is disabled. Refer to the NI Switches Help for information about disabling digital filtering.	150 ns

Front panel input voltage

-0.5 V, minimum

+0.7 V, V_L maximum

+2.0 V, V_H minimum

+3.3 V, nominal

+5.5 V, minimum

Front panel nominal voltage

3.3 V TTL, 8 mA

Output trigger
Destinations	PXI trigger lines <0...7>
Default pulse width	2 μs, typical

Physical Characteristics

Switch type

FET

Front panel connectors
I/O	10 SMA jacks, female
Triggers	2 SMB jacks, female

Power requirement

PXI

0.6 W at 5 V

0.6 W at 3.3 V

PXI Express

0.4 W at 12 V

1 W at 3.3 V

Dimensions (L × W × H)

3U, one slot, PXI/cPCI module, PXI Express compatible

21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.)

Weight

774 g (27.3 oz)

Environment

Table 2. 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

Table 3. 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, 0.3 g_rms
Random vibration, 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.)

Compliance and Certifications

Safety Compliance Standards

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 C22.2 No. 61010-1

Note For safety certifications, refer to the product label or the Product Certifications and Declarations 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
EN 55022 (CISPR 22): Class A emissions
EN 55024 (CISPR 24): Immunity
AS/NZS CISPR 11: Group 1, Class A emissions
AS/NZS CISPR 22: 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.

Note For EMC declarations, certifications, and additional information, refer to Product Certifications and Declarations.

Product Certifications and Declarations

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.

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 Engineering a Healthy Planet 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.

EU and UK Customers

Waste Electrical and Electronic Equipment (WEEE)—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RoHS— NI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NI中国RoHS合规性信息，请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

Push: Cautions 2543

Note Device relays might change state momentarily during electrostatic discharge.

¹ Measurements are performed with single CW tones, ranging from -26 dBm to +10 dBm at the RF input. This specification is based on both experimental and calculated data.

² Measurements performed with two 10 dBm input tones = 1 MHz apart. This specification is based on both experimental and calculated data.

³ Switch operate time is defined as the time from TRIG IN falling to 10% to when the output reaches 90% of final value.

⁴ Certain applications may require additional time for proper settling. For information about including additional settling time, refer to the NI Switches Help.

⁵ The PXI-2543 recognizes trigger pulse widths less than 150 ns if digital filtering is disabled. Refer to the NI Switches Help for information about disabling digital filtering.