PXI-2544 Specifications

These specifications apply to the PXI-2544 .

All specifications are subject to change without notice.

Notice The protection provided by the PXI-2544 can be impaired if it is used in a manner not described in this document.

About These Specifications

Specifications characterize the warranted performance of the instrument under the following operating conditions:

Chassis is powered on
Calibration adjustment cycle maintained
50 Ω termination connected to unused I/O front panel connectors

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.

Nominal values (or supplemental information) describe additional information about the product that may be useful, including expected performance that is not covered under Typical Specifications. Nominal values are not covered by warranty.

All voltages are specified in DC, AC_pk, or a combination unless otherwise specified.

Clean devices and terminal blocks by brushing off light dust with a soft, nonmetallic brush. Remove other contaminants with a soft, lint-free, dampened cloth. Do not use detergent or chemical solvents. The unit must be completely dry and free from contaminants before returning to service.

PXI-2544 Pinout

Table 1. Signal Descriptions
Signal	Description
CHx	Signal connection
COM	Routing destination for all channels
TRIG IN	Trigger input connection
TRIG OUT	Trigger output connection

Topology

8x1 terminated multiplexer

Input Characteristics

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

Maximum Safe Continuous RF Power

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

RF Performance Characteristics

Values in parentheses are typical.

Insertion loss
≤2.4 GHz	<4.5 dB (<3.2 dB)
≤6 GHz	<6.3 dB (<5.2 dB)
≤6.6 GHz	<7.2 dB (<6.0 dB)

Insertion loss thermal coefficient

α = 3,402 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
	T ₀ is the reference temperature in °C
	α represents insertion loss temperature coefficient in ppm/°C

Table 2. PXI-2544 Flatness (Typical)
Frequency	Flatness / 200 MHz	Flatness / 1 GHz
10 MHz to 5 GHz	<0.30 dB	<0.8 dB
5 GHz to 6 GHz	<0.32 dB	<1.0 dB
6 GHz to 6.6 GHz	<0.47 dB	<1.3 dB

Voltage standing wave ratio (VSWR)
10 MHz ≤ x≤3.5 GHz	<1.9 (<1.5)
3.5 GHz < x≤6 GHz	<1.9 (<1.4 )
6 GHz < x≤6.6 GHz	<2.2 (<1.6)

CH-COM isolation
≤2.4 GHz	>77 dB (>95 dB)
≤6 GHz	>65 dB (>77 dB)
≤6.6 GHz	>61 dB (>72 dB)

CH-CH isolation
≤2.4 GHz	>77 dB (>95 dB)
≤6 GHz	>62 dB (>82 dB)
≤6.6 GHz	>56 dB (>76 dB)

Typical channel-to-channel skew

<10 ps

Typical propagation delay

1100 ps

Input 1 dB compression
Minimum	>27 dBm
Typical	>32 dBm

Refer to the following figures for typical insertion loss, typical VSWR, and typical isolation, respectively.

Linearity

Second-order harmonic distortion (Input IP2 (IIP2))

Typical IP2 (input)

>+91 dBm

Note 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.

Third-order intermodulation distortion (Input IP3 (IIP3))

Typical IP3 (input)

>+56 dBm

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

Dynamic Characteristics

Relay Operate Time
Typical	1 ms
Maximum	3.3 ms

Simultaneous drive limit

90 relays

Expected mechanical relay life

1 × 10⁸ cycles

Expected electrical relay life
≤30 mV, ≤10 mA resistive	2.5 × 10⁶ cycles
30 V, 1 A	5 × 10⁵ cycles
30 V, 2 A	1 × 10⁵ cycles
60 VDC, 1 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.

Trigger Characteristics

Input trigger
Sources	PXI trigger lines 0 –7, front panel
Minimum pulse width	150 ns

Front panel input voltage
Minimum	-0.5 V
V_L maximum	+0.7 V
V_H minimum	+2.0 V
Nominal	+3.3 V
Maximum	+5.5 V

Output trigger
Destinations	PXI trigger lines 0–7, front panel
Default pulse width	2 µs, typical

Front panel nominal voltage

3.3 V TTL, 8 mA

Physical Characteristics

Switch type

FET

Front panel connectors
I/O	9 SMA jacks, female
Triggers	2 SMB jacks, female

Power requirement

PXI
5 V	0.1 W
3.3 V	0.6 W

PXI Express
12 V	0.6 W
3.3 V	0.9 W

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

538 g (19 oz)

Environment


Maximum altitude	2,000 m (800 mbar) (at 25 °C ambient temperature)
Pollution Degree	2

Indoor use only.

Operating Environment


Ambient temperature range, operating	0 °C to 55 °C
Relative humidity range, operating	10% to 90%, noncondensing

Storage Environment


Ambient temperature, storage	-40 °C to 71 °C
Relative humidity range, storage	5% to 95%, noncondensing

Shock and Vibration


Operating shock	30 g peak, half-sine, 11 ms pulse
Random vibration	Operating: 5 Hz to 500 Hz, 0.3 g RMS Nonoperating: 5 Hz to 500 Hz, 2.4 g RMS

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.)