Agilent/Keysight 70001A - 8-Slot System Mainframe for MMS modules

The Keysight 70001A is an 8-slot system mainframe that houses and powers Modular Measurement System (MMS) plug-in modules, delivering a unified platform for test and measurement applications across industrial and laboratory environments. It has regulated power, forced-air cooling, and dual communication buses

MSIB for high-speed inter-module data exchange and GPIB for external instrument control - enabling synchronized operation of multiple measurement modules within a single chassis.

Technical Specifications

• Module Capacity: 8 slots; accommodates 1/8-, 1/4-, 3/8-, and 1/2-width MMS modules


• Power Supply Output: 24.3 Vac (average voltage) at 40 kHz, up to 200 W; 5 VDC for MSIB; TTL-compatible line synchronization signal


• Cooling: Forced-air cooling system for plug-in modules


• Communication Interfaces:

MSIB: High-speed digital bus enabling simultaneous multi-module communication

GPIB/HP-IB: Computer control and integration with GPIB and VXIbus instruments

Key Features

• Supports mixed-width module configurations, maximizing slot utilization efficiency


• Integrated bails and handles for benchtop portability; compatible with standard EIA racks


• Rugged structural design and good EMC performance for sensitive measurements in industrial environments


• 40 kHz AC power architecture optimized for MMS module operation

Typical Applications The 70001A is the foundational chassis for microwave test systems, RF measurement suites, and modular instrumentation configurations requiring synchronized multi-module operation and external system integration via GPIB control.

Compatibility & Integration Designed exclusively for Agilent/Keysight MMS plug-in modules. Integrates with GPIB-compatible instruments and VXIbus products. Required mainframe for modules such as the Keysight 70428A Microwave Source Module.