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Appendix D: Signal Connection of MCU DI/DO
VTC 7200-BK Series User Manual
Deactivating Pre-Alarm Function
(For Event Button)
(For MCU-DI2)
Example: When Central Locking System is initiated (locking signal is received)
by negative signal, select “Low” in the trigger threshold level for MCU-DI1.
MCU-DI1
“High”?
Flag B
“1”?
Ignition
“High”?
MCU-DO1 & MCU-DO2
“Low”
“High”
Yes
Yes
Yes
No
No
No
Start
Point A
MCU-DI1
“High”?
Flag B
“1”?
Ignition
“High”?
MCU-DO1 & MCU-DO2
“Low”
“High”
Yes
Yes
Yes
No
No
No
Start
Point A