Specifications for the NI PXI-2591 4 GHz 4x1 50 Ω Multiplexer This document lists specifications for the NI PXI-2591 multiplexer module. All specifications are subject to change without notice. Visit ni.com/manuals for the most current specifications. Configuration ......................................... 4x1 multiplexer RF Performance Characteristics Characteristic impedance (Z0)................ 50 Ω nominal Insertion loss ≤2.5 GHz......................................... <0.6 dB ≤4 GHz............................................ <0.9 dB VSWR ≤2.5 GHz......................................... <1.3 ≤4 GHz............................................ <1.5 Channel-to-channel isolation ≤2.5 GHz......................................... >60 dB ≤4 GHz............................................ >55 dB Input Characteristics All input characteristics are DC, ACrms, or a combination unless otherwise specified. Maximum switching voltage.................. 30 V (channel-to-channel and channel-to-ground) Maximum switching current .................. 0.33 A 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. ni.com © 2003 National Instruments Corp. All rights reserved. April 2003 323536A-01 Maximum carry current ..........................0.33 A Maximum switching power ...................10 W National Instruments 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. Consult your RF source documentation for more information. Note Maximum RF carry power .....................10 W DC path resistance Initial................................................<0.2 Ω End of life ........................................>1 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 rises rapidly above 1.0 Ω. Dynamic Characteristics Relay operate time (at 20 °C) .................15 ms Release time (at 20 °C) ...........................15 ms Expected relay life Mechanical ......................................5,000,000 cycles Electrical..........................................100,000 cycles (maximum load) Trigger Characteristics Input trigger Sources ............................................PXI trigger lines 0–7 and STAR Minimum pulse width......................70 ns Output trigger Destinations .....................................PXI trigger lines 0–7 Pulse width ......................................1 µs Specifications for the NI PXI-2591 2 ni.com Physical Characteristics Relay type .............................................. Electromechanical, non-latching I/O connectors ........................................ 5 SMA jacks Contact material ..................................... Gold Dimensions (W × H × D) ....................... 3 cm × 10 cm × 16 cm (0.8 in. × 3.9 in. × 6.3 in.) Weight .................................................... 225 g (8 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 CH0 CH1 COM CH2 CH3 Figure 1. NI PXI-2591 Power-On State Compliance and Certifications Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control and laboratory use: Note • IEC 61010-1, EN 61010-1 • UL 3111-1, UL 61010B-1 • CAN/CSA C22.2 No. 1010.1 For UL and other safety certifications, refer to the product label or to ni.com. © National Instruments Corporation 3 Specifications for the NI PXI-2591 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 Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, click Declarations of Conformity Information at ni.com/hardref.nsf/. Note *323536A-01* 323536A-01 Apr03