For example: Agilent E4440A or Anritsu 68369
Accessory
Accessories in the realm of test equipment encompass a wide range of supplementary components, including probes, cables, connectors, adapters, and fixtures, which enhance the versatility, functionality, and connectivity of the main testing instruments.
Keithley Instruments 6521
6521 Low Current, 10 Channel Scanner Card
Manufacturer: Keithley Instruments
Keithley Instruments 6522
Low-Current, High-Impedance Voltage, High-Resistance, 10-Ch Scanner Card (for Model 6517A)
Manufacturer: Keithley Instruments
Keysight / Agilent 69735A
Pulse Train Output/Stepping Motor Control Card
Manufacturer: Keysight / Agilent
Keithley Instruments 7037
7037 Single-Pole Relay Digital I/O Card
Manufacturer: Keithley Instruments
Keithley Instruments 7037D
7037D Single-Pole Relay Digital I/O Card
Manufacturer: Keithley Instruments