2
User Port
Power supply, connect to lock, door sensor and
unlock button.
3
Project Port
Reserved for project staff use.
2.4 Electric Control Lock and Electromagnetic Lock
2.4.1 Electric Control Lock
When VTO connects to electric control lock, it means that the positive end of electronic
control lock connects to NO of VTO (user port 10) while its negative end connects to COM
of VTO (user port 12).
When VTO connects to unlock button, one end of unlock button connects to BUTTON of
VTO (user port 7) while the other end connects to CND of VTO (user port 9). See Figure
2- 9.
Figure 2- 9
2.4.2 Electromagnetic Lock
When VTO connects to electromagnetic lock, it means that the positive end of
electromagnetic lock connects to NC of VTO (user port 11) while its negative end connects
to COM of VTO (user port 12).
When VTO connects to door sensor in electromagnetic lock, one end of door sensor
connects to FEEDBACK of VTO (user port 8) while the other end connects to GND of VTO
(user port 9). See Figure 2- 10.
Summary of Contents for VTO2000A Series
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