Detectors/Devices MenuPage 32Adding a keypadIf the keypad you are adding already has an address stored within it, you will need to clearthe address before adding it to the bus. You can do this manually by pressing the D and keys while the keypad's tamper switch is open, or by using Delete Keypad (page 35).To add a new keypad:1. From the Installer menu, select Detectors/Devices – Address Bus Device, and press when you see "Re-scan bus?". The following is displayed:2. When you see the above message, the control unit is ready to allocate an address toeach additional keypad that has a "null" address. Press and hold “A” and “”together at a keypad that needs an address. Release the keys when you hear asound. The display shows the allocated address, such as "b1-d02" (bus 1, device02).Note: For i-on10, the bus number is always 1, and the device number is in the range01 to 04.Note: Do not attempt to obtain an address for two keypads at the same time.3. When you have finished addressing all keypads, press .Re-scanning the busThe control unit keeps a record of every keypad that it has learned. To keep the list up todate, the control unit scans the bus during power up and when you leave the Installermenu. You can also scan the bus by pressing when you see the "Re-scan bus?" promptafter selecting Detectors/Devices – Address Bus Device.During a scan, the control unit queries every keypad on the bus to report its bus address.The control unit then compares the reported addresses with those that is has stored andmay report: Duplicate bus addresses – That is, keypads that have the same address. You willneed to change the address of one of the keypads to make it unique. Found and/or lost bus devices – If the control unit finds a keypad on the bus thathas not been added using the Installer menu, or a previously-added keypad ismissing, the display shows, for example:The top line shows the number of new keypads found, and the number of existingkeypads lost. The bottom line shows the first in the list of found and lost keypads.You can use the up/down navigation keys to scroll through the list.If you see that there are found or lost keypads: