20 921468007_09_010Connection of smoke and heat detectorsThe connection of the fire detectors is possible only if the zone which are connected is programmedas a «FIRE» zone. The normally closed contacts of the relay on the base (NC,C) are connected inseries with the resistor of the zone of the panel.The power to the base is done using (-) and the output Ρ2 which by default is programmed as «SUP-PLY FIRE DETECTOR».3.3. Programming through the keyboardWhen a user tries to change a setting in the user menu or the technician menu he can view the currentvalue of the setting in BS-466/A, but in BS-477 the cursor always goes to the first line of the selec-tions. The only menus that do not offer the preview of default values are menus «CALL ON» on thePSTN and GSM, as well as the 2 menus «EVENTS NOTIFICATION» of the ARC (Alarm ReceivingCenter) of the PSTN and the GSM.When a value is entered (i.e. entry time), and after the last digit is entered, the value is stored auto-matically without the need of pressing an additional key. If the user does not reach the last digit of thevalue and " * " is pressed, then the value that is shown on the display is stored in BS-466/A, but forBS-477 we must register all values to the end of the selection. There is always an indication on thedisplay that shows which digit is edited. This is shown with the symbol‘^’ under the current digit.When the adjacent display is shown, the system is in the process ofan important process which cannot be stopped by using the keyboard.When the process finishes, the display will show the main menu. If aproblem occurs during the process then a relative message will beshown before the return to the main menu.Sometimes a menu can contain content that cannot be shown in oneUPDATING DATA..