Keysight (Agilent) Technologies L4491A Other Test Equipment


4U RF Switch Platform with integrated switch driver, includes 64 switch drive lines

4U RF Switch Platform with integrated Switch Drive
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The Agilent L4491A provides the switch drive control and space to mount all the most popular switches and attenuators. It comes standard with 64 coil drives integrated into the enclosure. An additional 64 coil drives can be added with option 002. The 4U version features a unique switch mounting system so that switches and attenuators are mounted vertically in the enclosure for a compact, reliable solution to meet your custom needs.

The distribution boards provide the right power and control signals from the driver to the switches using standard ribbon cables enabling simple connections to the switches. Switch sequences, verification, relay counts and the graphical Web interface ensure quick set-up and help reduce the time for troubleshooting and repair.

The RF Switch Platform easily integrates into your test environment with standard rack mount kits, LAN and GPIB connectivity, graphical Web interface and software drivers for the most common programming environments.

  • Learn more Agilent RF/Microwave switching solutions

Key Specification

  • Flexible and easily configurable mounting system for a robust and reliable switching system
  • 3D models included for quick RF cable layout and documentation
  • Graphical Web interface for quick setup, troubleshooting and support
  • Easy connection and control of all the most popular microwave switches and attenuators
  • Expandable up to 128 coil drives
  • Effective switch management with switch verification, sequences and relay counter
  • Software drivers for most common programming environments
  • LXI compliance includes Web interface and built-in Ethernet connectivity

L4491A OPTIONS (36)
L4491A-001 Front panel with holes to mount up to 8 Keysight multiport switches
L4491A-002 Add 64 additional switch drive lines with additional 34945EXT installed
L4491A-004 Add 16 bit Digital IO and 28 bits of relay drive lines
L4491A-005 Standard 4U unit with switch bays
L4491A-006 4U unit with punched bottom for mounting switches and no switch bays
L4491A-0B0 Download the product manual from the Keysight website
L4491A-501 Power cord - right angle for United States and Canada
L4491A-900 Power cord - United Kingdom
L4491A-901 Power cord - Australia and New Zealand
L4491A-902 Power cord - Continental Europe
L4491A-903 Power cord - United States and Canada (120V)
L4491A-904 Power cord - United States and Canada (240V)
L4491A-906 Power cord - Switzerland
L4491A-912 Power cord - Denmark
L4491A-917 Power cord - India
L4491A-918 Power cord - Japan
L4491A-919 Power cord - Israel
L4491A-920 Power cord - Argentina
L4491A-921 Power cord - Chile
L4491A-922 Power cord - China
L4491A-923 Power cord - South Africa
L4491A-927 Power cord - Thailand
L4491A-930 Power cord - Brazil
L4491A-931 Power cord - Taiwan
L4491A-932 Power cord - Cambodia
L4491A-ABA English printed manual set included; full documentation on CD ROM
L4491A-AXA Standard rackmount flange kit
L4491A-AXB Standard rackmount kit with handles
L4491A-FBU L4491A with the front and back plates un-mounted
L4491A-STD Standard, solid front panel
Y1156A Diagnostics board for L449xA, 34945A and L4445A uW Switch Drivers
Y1170A Mounting bracket and ribbon cable for qty 5 N1810 Series Switches in the L4491A
Y1172A Mounting bracket and ribbon cable for qty 5 Multiport Series Switches in the L4490A/91A
Y1173A Mounting bracket and ribbon cable for qty 6 transfer Switches in the L4490A/91A (3 brackets and 6 cables)
Y1174A Mounting bracket and ribbon cable for qty 5 849xx Series attenuators in the L4490A/91A
Y1175A Mounting bracket for qty 5 8490 Series attenuators or 876x switches in the L4490/91A
L4491A PRODUCT Q & A  
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