code: @Override
  	public void initDownstream()
  	{
  		if (direction == RIGHT_TO_LEFT)
  		{
  			for (PhysicalEntity pe : conv.getLeft())
  			{
  				addToDownstream(pe, getGraph());
  			}
  		}
  		else
  		{
  			for (PhysicalEntity pe : conv.getRight())
  			{
  				addToDownstream(pe, getGraph());
  			}
  		}
  	}
docs: Binds products.