SCXI-1191, PXI-2591

Input Characteristics

Number of channels per bank ......................... 4

Number of banks.............................................. 4

SCXI-1191 .................................................. 4

PXI-2591..................................................... 1

Input voltage

Maximum switching voltage

DC ............................................................ 30 VDC

Maximum switching capacity per channel

DC ............................................................ 0.33 A at 30 VDC

Maximum switching power per channel ......... 10 W

Contact on resistance (initial) .......................... 200 mΩ maximum

Contact material .............................................. Gold

RF Performance Characteristics

Characteristic impedance (Z0 ) ........................ 50 Ω

Insertion loss

2.5 GHz ...................................................... <0.6 dB

4 GHz ......................................................... <0.9 dB

VSWR

2.5 GHz ...................................................... <1.3

4 GHz ......................................................... <1.5

Isolation

2.5 GHz ...................................................... >60 dB

4 GHz ......................................................... >55 dB

Maximum RF carry power at 900 MHz ............ 10 W

Dynamic Characteristics

Relay operate time (at 20 °C)

Typical........................................................ 15 ms

Relay release time (at 20 °C)

Typical........................................................ 15 ms

Expected life

Caution: Exceeding the maximum switching capability decreases expected life.

Power Requirement

+5 VDC ........................................................... 950 mW maximum (all relays closed)

Physical

Dimensions

SCXI-1191 .................................................. 17.3 by 19.6 by 3.0 cm (6.81 by 7.70 by 1.19 in.)

PXI-2591..................................................... 10 by 16 by 4 cm (3.9 by 6.3 by 1.6 in.)

I/O connector.................................................... 5 SMA female per bank

Environment

Operating temperature..................................... 0 to 50 °C

Storage temperature ........................................ -20 to 70 °C

Relative humidity ............................................. 5 to 85% noncondensing

SCXI-1192

Input Characteristics

Number of relays.............................................. 8 SPDT (latching)

Input voltage

Maximum switching voltage............................ 30 VDC

Maximum carry current per channel................ 2 ADC

Maximum continuous carry power per channel

1 to 3 GHz .................................................. 120 W

3 to 8 GHz .................................................. 80 W

8 to 12.4 GHz ............................................. 60 W

12.4 to 18 GHz ........................................... 50 W

The total input power for all relays combined should not exceed the preceding specifications.

When using multiple relays, refer to table below for adjusted maximum input power

Contact resistance (initial) ............................... 100 mΩ maximum

Contact material............................................... Gold plate

RF Performance Characteristics

Characteristic impedance (Z0) ......................... 50 Ω

Insertion loss at:

≤4 GHz ....................................................... ≤0.2 dB

4 to 8 GHz .................................................. ≤0.3 dB

8 to 12.4 GHz ............................................. ≤0.4 dB

12.4 GHz to 18 GHz ................................... ≤0.5 dB

VSWR at:

≤1 GHz ....................................................... ≤1.1

1 to 4 GHz .................................................. ≤1.15

4 to 8 GHz .................................................. ≤1.25

8 to 12.4 GHz ............................................. ≤1.35

12.4 to 18 GHz ........................................... ≤1.5

Isolation:

≤1 GHz ....................................................... ≥85 dB

1 to 4 GHz .................................................. ≥80 dB

4 to 8 GHz .................................................. ≥70 dB

8 to 12.4 GHz ............................................. ≥65 dB

12.4 to 18 GHz ........................................... ≥60 dB

Dynamic Characteristics

Relay operate time (at 20 °C)

Typical........................................................ 15 ms

Relay release time (at 20 °C)

Typical........................................................ 15 ms

Expected life

Caution: Exceeding these electrical parameters decreases expected life.

Power Requirement

+5 VDC ............................................................ 800 mA, maximum

Physical

Dimensions....................................................... 17.3 by 19.6 by 3.0 cm (6.81 by 7.70 by 1.19 in.)

I/O connector.................................................... 24 SMA female

Environment

Operating temperature..................................... 0 to 50 °C

Storage temperature ........................................ -20 to 70 °C

Relative humidity ............................................. 5 to 85% noncondensing

SCXI-1163R

Input Characteristics

Number of relays.............................................. 32 organized as 8 optically isolated banks of 4 relays each

Relay type......................................................... Normally open (Form A). solid-state relays

Maximum switching voltage

AC ............................................................ 240 VAC

DC ............................................................ 240 VDC

Maximum switching capacity .......................... 200 mA

On-resistance ................................................... 8 Ω

Output capacitance .......................................... 110 pF at 50 V, 1 MHz

Leakage current................................................ 1 µA maximum

(1 word = 32 bits) ...................................... 750 words/s

Relay set time .................................................. 0.6 ms

Relay reset time ............................................... 0.1 ms

Power-on state ................................................. Relays open

Switch Specifications

505

National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com

Active Relays

1 to 3 GHz

3 to 8 GHz

8 to 12.4 GHz

12.4 to 18 GHz

1

120 W

80 W

60 W

50 W

2

60 W

40 W

30 W

25 W

4

30 W

20 W

15 W

12.5 W

8

15 W

10 W

7.5 W

6.25 W