Highlights

Armature Multiplexer Offers High-Performance Signal Switching Wherever You Need

The Keysight L4421A is a versatile 40-channel armature multiplexer that is LXI Class C compliant. Its small size, fast scan rates, and Ethernet connectivity make this switch ideal for general-purpose scanning, design verification, and functional test applications.

  • Up to 40-channel 2-wire latching armature relay
  • Counter monitors and predicts when relays are nearing end-of-life
  • Thermocouple reference junction is ideal for temperature measurements (requires external digital multimeter)
  • LXI standard is supported by multiple vendors, enabling lower cost of test and accelerated test integration
  • Four additional fused inputs route current to an external multimeter, allowing current measurements without external shunt resistors
  • Five instrument states with user label in non-volatile memory

Switch Features for Flexible, Reliable Connections

  • Connect one of many different points to a single point or create your own custom configuration with multiple switch closures
  • Ensure that no two signals are connected to each other during a scan with "break before make" connections
  • Defines switch sequences and control complex signal routing to ensure the order of switch closures
  • Time and synchronize measurements with external trigger capabilities 

KEY SPECIFICATIONS

Channels
11-40
Channels/Crosspoints
40
Channels/sec.
0 - 120 ch/s
Inputs/Outputs
0 - 50 Volts
126 - 250 Volts
300 Volts
51 - 125 Volts
Maximum Inputs/Outputs (V, I)
300V, 2A
Module Type
Multiplexer
Channels
Channels/Crosspoints
Channels/sec.
Inputs/Outputs
Maximum Inputs/Outputs (V, I)
Module Type
11-40
40
0 - 120 ch/s
0 - 50 Volts
126 - 250 Volts
300 Volts
51 - 125 Volts
300V, 2A
Multiplexer
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Channels:
11-40
Channels/Crosspoints:
40
Channels/sec.:
0 - 120 ch/s
Inputs/Outputs:
0 - 50 Volts
126 - 250 Volts
300 Volts
51 - 125 Volts
Maximum Inputs/Outputs (V, I):
300V, 2A
Module Type:
Multiplexer
Platform:
L4400
Speed or Frequency:
100 ch/s

Standard Configurations

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