WIRING STRUCTURE OF SWITCHING DEVICE FRAME

PURPOSE:To use the inside of a frame effectively, to reduce installation space, and to shorten a wiring cable, by supporting a circuit unit on the front surface of one frame, and then providing jumper wiring for each circuit unit on the rear surface. CONSTITUTION:A cable (a) to be connectd to each circuit unit 5 supported on the front surface of a frame 1 is arranged along a supporting plate 3, and connected to plural pins of a terminal plate unit 2 installed in the right half surface of the frame 1. The terminal plate unit 2 is connected to each corresponding terminal plate unit installed in the left half surface of the frame 1 thrugh cables (c) and (e) and a jumper cable (d) connected to the rear part of each terminal plate unit 2 in the rear surface of the frame 1. Thus, the cable connected to each circuit unit 5 and that connected to an external device to be connected to it are connected through jumper wiring on the rear surface of the frame 1, and a cable (f) connected to respective pins of terminal plate units 2 in the left half surface of the frame 1 by the jumper wiring is led out thrugh the space between supporting rods 4 to constitute a cable (g) to be connected to the external device.