Isolated Digital Output Module IP445A

The IP445A has 32 port isolated output channels and supports a wide range of bipolar AC or DC voltage switching. The isolation protects computer systems from noise, transient signals and field wiring faults. The inputs are grouped into four 8-channel ports and are isolated via sold state relays from the logic and each other.

This product is used for a range of applications. Typical use is control of digital output voltage levels in critical control systems and other embedded computing systems.

The Acromag IP445A is an Isolated Digital Output Module.

Each port can be configured for high or low side switches. The outputs are TTL compatible when configured as low side switches using on board socketed pull up resistors. Readback buffers simplify output status monitoring. Closed Loop monitoring of critical control signals is achieved using the IP445A with Acromag’s IP440 digital input module.

Loopback monitoring provides self test and fault diagnostics to detect open switches or shorts. Changes made in software configuration. Plus unique ground reference points for each port permits AC and DC switching on one module.

Features of the Isolated Digital Output Module IP445A include:

  • Unique ground reference points for each port permits AC and DC switching on one module.
  • Pins compatible with IP440A input module for loopback monitoring.
  • 32 bipolar solid state relays
  • High/low-side switch configuration
  • Port-isolated output channels
  • ±60V AC/DC voltage range
  • High speed processing (0 wait states)
  • TTL-compatible
  • Failsafe power-up and system reset
  • Output readback function
  • Socketed pull-up resistors for low-side switching applications
  • Current-limited solid-state relays
  • 0 to 70°C (IP445) or -40 to 85°C (IP445E model)



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