The Honeywell 10303/1/1 is a Power Supply Distribution Module (PSD) designed for industrial automation. Here are some key points about it:

• Function: It aggregates the outputs of redundant power supply units (PSUs) into a single 5 Vdc supply for non-redundant I/O topologies.

• Usage: Used in configurations with redundant Central Parts and non-redundant I/O.

• Dimensions: Measures 2.5 x 12.7 x 20.3 cm and weighs 0.2 kg.

• Installation: Requires placement next to PSU modules to minimize voltage drop in wiring.

• Safety: The module should only be exchanged with the power supply switched off