Voltage rail
Ideal voltage rail: +5 V from ground (the ground symbols) to its pin, with no internal resistance and no current limit, like Falstad's rail. There is no ground symbol on the bench yet: place one so the rail has something to be measured from. An element for drawing schematics; for a real supply use the bench supply.

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Pins
- the rail