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E8483A C-size Microwave Switch/Step Attenuator Driver

Product Status: Discontinued | Currently Supported
This product is no longer available

No replacement found for this product.

Key Features & Specifications

  • 2-Slot, C-size, register based
  • Controls any Keysight 87104 / 87106 Series microwave switch (switching up to 26.5 GHz)
  • Controls any Keysight 84904 / 06 / 07 / K/L programmable step attenuator (programmable in 1- or 10dB steps up to 90 dB, up to 40 GHz)
  • can drive other Keysight Microwave switch and attenuator modules. For details, refer to E8483A application note


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The Keysight E8483A Switch/Step Attenuator Driver is a C-size, 2-slot, register-based VXI module. You can control up to six switches and/or attenuators. The module provides room for you to install up to three single-pole multithrow microwave switches in the module. Or you can mount the switches and/or attenuators external to the VXI module in a location closer to your DUT. The microwave switches and attenuators are not included with the E8483A and must be ordered separately.

The E8483A contains the control, drive, and power circuitry for controlling both microwave switches and step attenuators. Any combination of up to six devices (switches or attenuators) can be controlled by the E8483A. The module includes six 16-pin DIP sockets for connecting up to six microwave switches, and six 10-pin DIP sockets for connecting up to six step attenuators.

The E8483A provides +24 V drive signals to control the 87104/06 Series microwave switches and 84904/06/07K/L Series programmable step attenuators. Cables for connecting the E8483A to the drive circuitry of the switches and attenuators are included with the E8483A.