About the 0-58774-103
The 0-58774-103 is a Network Communication Board from Reliance Electric. This circuit board is long and narrow. On one of the short edges is a small nine-hole female connector with screw anchor supports. Behind the female connector is a large black square box that has 1 through five written on the top (odd numbers on the left and even numbers on the right), in the center it says PE-5760 9750-M, CHINA. Along the upper long edge is a large black male style terminal connector. When the female adaptor is attached it will click and secure into place using the clips on the side of the male connector. The 0-58774-103 has a small square crystal oscillator with space next to it to add another square style crystal oscillator and a small oval-shaped crystal oscillator. There are four yellow suppressor style capacitors spread across the circuit board. The 0-58774-103 has a single shot-key diode (a diode with a metal attachment with a hole in the center) that is screwed down to the circuit board with metal brackets on either side. There are twenty-five integrated circuits and two open spaces to add additional ones if needed. The edges of the board are labeled with numbers. For the short edge, it goes from zero to two and a half and increases by halves. The long edge is labeled from zero to six and a half and increases by halves as well. The 0-58774-103 is also a double-sided circuit board and features tiny surface mount resistors and tiny surface mount capacitors.
