Product Description

The AMN11 and AMN22 are high-density analog I/O module nests designed for Yokogawa industrial control systems. These base racks provide the physical and electrical interface between field-side analog signals and the control system’s processing architecture.

Engineered for high-density analog environments, the AMN11/AMN22 series ensures stable backplane communication, secure module retention, and reliable power distribution. Their compact form factor is optimized for space-constrained marshaling cabinets, allowing multiple analog channels to be consolidated efficiently. By providing a low-noise electrical environment, these nests maintain the integrity of sensitive signals, such as 4–20 mA loops and low-level voltage inputs, enabling accurate data acquisition for process control.

Technical Specifications

Application Scenarios

• Analog Signal Consolidation
  Centralizing multiple analog transmitters (pressure, flow, level) into a single rack-mounted interface.

• Remote I/O Stations
  Serving as the base for expansion racks in remote instrument enclosures.

• DCS Infrastructure Upgrades
  Replacing older mounting hardware to support modern high-precision analog modules in CENTUM systems.

Product FAQ

Q: What is the difference between AMN11 and AMN22?
A: The main difference is typically the number of module slots or the system bus version supported. AMN22 generally offers higher slot density or specific revisions for I/O expansion.

Q: Do these nests require a separate power supply?
A: No. Power is delivered through the system’s internal distribution bus and routed to each analog module via the backplane connectors.