Panasonic DBS-576 Technical Manual page 151

Section 400-Programming
Related Programming:
Introduction
0
System
Configuration Programmed Data to Serial Port
(all CPCs) - Version 1.0 or higher
Set the serial port (if any) to receive programmed settings.
FF1
System
FF2
Trunks
Notes:
FF3
Extensions
Related Programming:
FF4
FF-/Soft Keys
FF5
Groups
Not Used
(all CPCs) - Version 1.0 or higher
FF6
TRS/ARS
FF7
Applications
FF8
Maintenance
Appendix A
Appendix B
576-13-400
FF1 0 06 0003 Hold (0-2) Hold
FF1 0 06 0004 Hold
DBS 576 (USA) issued 05/20/98
FF1: System Programming
$! 
0=none
1=Serial Port 1
2=Serial Port 2 (default)

)! B
Introduction
0
System
Configuration
FF1
System
FF2
Trunks
FF3
Extensions
FF4
FF-/Soft Keys
FF5
Groups
FF6
TRS/ARS
FF7
Applications
FF8
Maintenance
Appendix A
Appendix B
Page 1-89