2
2. SYSTEM INFO
2.1 INSTALLATION NOTE
1 Electrical locks / alarms / cameras are not included in the package. You can buy
electrical locks that fit the actual requirements separately.
2 Factory default supports a normally open (NO), dry contact mode for door release. Dry
contact is opened in the normal state, lock remains normally closed. If you press the
unlock button, the dry contact will disconnect with the relay and release the lock.
In Normally Open mode, if you unlock the door and no one comes in, the door will stay
unlocked (screen will show Normally Closed (NC)) until someone walks in and shuts the
door. Then the door will lock again.
3 Built-in or external power supply is optional. Suitable for a wide voltage range (AC100V-
240V). Unplug the AC power plug before installing the device (as shown below).
4 For the use and selection of wires, please refer to the following. (Cable quality influences
video and voice transfer distance.)
a 4C ordinary unshielded wire and shielded wiring
b 3C ordinary unshielded + video cable (RG-59) connection method
c Category 5 network cable connection (not recommended)
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2.1 INSTALLATION NOTE
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2. SYSTEM INFO
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2. SYSTEM INFO
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