Omron NT620S Operation Manual page 112

System Maintenance
SYSTEM MENU
Quit
Transmit Mode
Maintenance Mode
Expansion Mode
MAINTENANCE MENU
Quit
Display History
I/O Check
PT Settings
Init. Memory
Memory Switch
I/O CHECK MENU
Quit Battery
Touch Switch DIP Switch
Comm. I/F
Screen Memory
EL Display
Printer I/F
Buzzer
Calendar & Clock
LED
Section
Select "Maintenance Mode".
V0.0
Select "I/O Check".
Select "Comm. I/F".
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