Quick release screw-down terminal block for the 18V power and power connections is provided for easy connection to the external power supply. These connector block (terminal blocks) are removable and do not require the removal of the wire(s) from them to remove them from the circuit board.
Although the connectors are made to plug in either horizontally (Parallel to the board), or vertically (perpendicular to the board) - perpendicular can lead to intermittant connections since the connector can rock back and forth. The recommended method is Horizontal (parallel to the board) so that the wires exit the PCB parallel to the board.
This picture illustrates the NON-RECOMMENDED method for attachment.
To be clear, if you choose to use the NON-RECOMMENDED attachment, you may have intermittent contact, yielding un-reliable results.
