# BusToSignalAdapter

_Source: `GridKit/Model/PhasorDynamics/BusToSignalAdapter/README.md`_

This component enables signals to send and receive bus variables. It has five
ports:

## Bus port
- `bus` for the bus whose variables are managed by the adapter

## Input ports
- `ir` ($I_r$)
- `ii` ($I_i$)

External current injections are read from input signal nodes added to currents
on the bus.

## Output ports
- `vr` ($V_r$)
- `vi` ($V_i$)

Voltages read from the bus are made available to signal nodes.