Setting up connector tabs

All blocks that operate on signals have connectors. Input connectors let signals enter a block; output connectors let signals exit a block. The triangular shape of the connector lets you easily see the direction in which the signals travel.

Some blocks have symbols on their connectors that indicate how the block acts on the data or the type of data the block is expecting. For example, the “-” on the summingJunction block means that the input is negated.