Strip all of the wires that you will be connecting to the alarm system so that approximately 1/4 inch of bare wire is exposed.
Position the alarm circuit board so that the numbers on the board's rear wiring panel are upright.
Connect the AC power line to the top three terminals by wrapping the line's exposed wire around the terminals labeled L1 and L2/N.
Connect any output devices, such as alarm signal sending devices or audible alarms, to terminals 4, 5 and 6 for the first device and 7, 8 and 9 for the second device.
Use terminals 19, 20 and 21, located along the right of the wiring panel, to connect any additional output devices.
Wrap the wires of input devices, such as alarm sensors, to terminals 22, 23 and 24 for the first set of devices and 25, 26 and 27 for the second set.
Tighten the screws on the rear of the wiring panel with your screwdriver to complete the wiring and to ensure the connection between the board and the wire is not broken.