Panasonic KX-TD500 System Reference Manual page 1549

3.00 Using VT220, Compatibles
3.01 Backup Main Menu
From the Main Menu Screen, Select "7. Backup
Utility" then the following "Backup Utility Main
Menu" appears on the screen.
Backup Utility Main Menu
=>
1 2
COMMON
Description
1. Load...Loading the system programming data
from backup device to the Main Unit.
2. Save...Saving the system programming data
from the Main Unit to backup device.
1. Load ( SIO 1 -> PBX )
2. Save ( PBX -> SIO 1 )
3 4 5
ONL BCK LIN
+
6 7
17-B-3
DIR
+ + +
8