AH500 Module Manual 2. Press the clip in the direction indicated by the arrow, or use a slotted screwdriver to tighten the screws on the two sides of the high-density terminal block. Removal 1. Pull the clip in the direction indicated by the arrow, or use a slotted screwdriver to loosen the screws on the two sides of the high-density terminal block. AH04AD-5A/AH08AD-5B/AH08AD-5C 2-14 AH04AD-5A/AH08AD-5B/AH08AD-5C AH08AD-5A