Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

Symbols

Network switch symbol

Ethernet switches are drawn on network and control drawings as a box with opposed arrows, indicating forwarding between ports. Electrical drawings show them in control panels and communication cabinets with their power supply and port connections.

Drawing use: Schematic / GA
Application: Installation & communications
Reference family: IEC

A distinction that matters

A router connects networks at the IP level; a switch forwards frames within a network.

Full reference

PoE PSE

Symbols

PoE power-sourcing interface

A PoE power-sourcing interface manages the supply end of a compatible powered Ethernet connection.

Drawing use: Schematic
Application: Installation & communications
Reference family: Manufacturer

A distinction that matters

A sourcing port's class and power capability must match the complete link and connected device.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.