1. Signal wire: generally, it is flame retardant/flame-resistant red and blue twisted flexible wire (red, positive, blue and negative), and the signal module of manual alarm button for smoke detector and temperature detector is connected to the signal wire. For example, water flow indicator, alarm valve, fire valve, fast air release valve, etc. are connected to the alarm host through signal module on the signal line.
2. Power cord: it is generally flame retardant/flame-resistant red and black twisted flexible cord or flame retardant BV hard cord (red, black and negative). The control module needs to connect the signal cord as well as the power cord. Alarm bell such as address directly connected to the signal line and power line. If there is no address, connect the signal line to the power line through the control output module. Such as air feed valve, smoke exhaust valve, electric valve, electric smoke exhaust port, blower, air compressor control and strong cut non-fire power supply, elevator through control module and signal line and power line and alarm host connection.
3, hard wire: some equipment needs to be directly controlled by fire control room through multi-line manual control panel, such as fire pump, spray pump, supplementary fan, smoke exhaust fan, etc. Generally, it is 6/4 core sheath cable or 6/4 flame retardant BV hard wire, which can be distinguished by various colors according to the equipment manufacturer
