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3.4 Unlock
3.4.1 Unlock Interval
In VTH menu, set unlock interval, max 25s.
3.4.2 Unlock under Connecting Status
Under connecting status, VTH can remotely unlock door. VTO will return to standby
interface after call ends or countdown stops.
3.4.3 2.4.2 Unlock under Calling Status
Under calling status, VTH can remotely unlock door. VTO will return to standby
interface after call ends or countdown stops.
3.4.4 2.4.3 Unlock under Monitoring Status
Under monitoring status, VTH can remotely unlock door. VTO will return to standby
interface after call ends or countdown stops.
3.4.5 2.4.4 Unlock via IC Card
By swiping authorized IC card, you can unlock door after local verification.
Note: For Model C product, only VTO5100C has unlocking function via swiping card.
3.5 2.5 Compensation of Light
In dark environment or at night, the VTO adopts auto photoreception technology
which achieves LED compensation in monitoring, connecting, call and alarm statuses.
3.6 2.6 Vandal Proof
There is one channel of vandal proof which will generate alarm sound and the alarm
plus video will be reported to VTH once VTO is forced to leave the wall.
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