About the 0-51811-4
Reliance Electric is the maker of the 0-51811-4 TSTE Test Card. The TSTE card has a face panel with eight black buttons running down the length. The black buttons are split into two groups, the first four buttons are grouped under the label A Channel and are individually labeled A8, A4, A2, and A1. The lower four buttons are grouped under the label B Channel and are individually labeled B8, B4, B2, and B1. Each button has a slid that is on the other side of the front panel. The A8 button has a small slide with six small hooks (three on each side), the A4 button also has a small slide with six hooks (three on each side), the A2 button has a longer slide with twelve hooks (six on each side), the A1 button has the longest slide with twenty-four hooks (twelve on each side), the B8 button has a short slide with six hooks (three on each side), the B4 button also has a short slide with six hooks (three on each side), and the B1 button has the same slide has the A1 button with twenty-four hooks (twelve on each side). Underneath the buttons are five white prongs with circular metal tops. They are individually labeled A, B, COM, S1, and S2. Below the prongs is a metal circle labeled ILI. Below that circle is the part number of the card 0-51811-4 and Reliance Electrics logo. The 0-51811-4 card also uses integrated circuits, capacitors, transistors, resistors and diodes to serve its purpose.
