ZKTeco X7 - Lock Connection; Share Power with Lock; Does Not Share Power with Lock

II
Warning: No operation when power on!
(1) The system supports NO LOCK and NC LOCK. The NO LOCK (normally open at
power on) is connected with NO terminal, and the NC LOCK is connected with NC
terminal.
(2) To prevent the generation of self-inductance EMF which would affect the system,
when the electrical lock is linked to the Access Control System, it is required to
connect one FR107 diode (equipped in the package, do not reverse the polarities) in
parallel in order to release the self-inductance EMF.
(1) Device shares power with the lock (2) Does not share power with the lock
+12V
GND
BUT
GND
SEN
COM1
NC1
AL-
AL+
BELL-
BELL+
NO1
-
+
-
+
+
-
DC12V
+12V
GND
BUT
GND
SEN
COM1
NC1
AL-
AL+
BELL-
BELL+
NO1
-
+
-
+
+
-
DC12V
-
+
DC12V
 I: device’ output current, U
LOCK
: lock voltage, I
LOCK
: lock current.
(3) One device controls one lock
+12V
GND
BUT
GND
SEN
COM1
NC1
AL-
AL+
BELL-
BELL+
NO1
+
-
+12V
GND
NC
PUSH
NO
GND
V1+ V1-
NC Lock
Exit Button
Access Control Device
Professional Access Control Power Supply
When Device share power with the lock:
U
LOCK
=12V, I-I
LOCK
>1A… 
and the lock is near to the device.
Device does not share power with the lock:
A. When U
LOCK
=12V I-I
LOCK
≤1A;
B. When U
LOCK
≠12V;
C. When the lock is far apart from the device.
3. Lock Connection
NC Lock
NC Lock