ZKTeco SpeedFace-V3L - Document Conventions; GUI Conventions; Symbols

Door Sensor, Exit Button, Alarm & Auxiliary Connection
4
NC
COM
NO
SEN
GND
BUT
AUX
GND
BELL+
BELL-
ALARM+
ALARM-
+
-
-
+
Alarm
Alarm Power
NO
COM
+
-
Smoke
Detector
ExitButton
Door
Sensor
Lock Relay Connection
The system supports Normally Opened Lock and Normally Closed Lock. The NO
LOCK (normally unlocked when power-on) is connected with 'NO' and 'COM'
terminals, and the NC LOCK (normally locked when power-on) is connected with 'NC'
and 'COM' terminals. Take NC Lock as an example below:
1)Device not sharing power with the lock2)Device sharing power with the lock
Normally Closed Lock
Normally Closed Lock
GND
DC12V
FR107
Maximum 30V 3A input.
+12V
DC12V
GND
DC12V
FR107
+12V
NC
COM
NO
SEN
GND
BUT
NC
COM
NO
SEN
GND
BUT