User's Manual

5
Signal pins assignment:
Wiring Gage is 22 AWG. BAC31 module need to be near to
Electric Strike or Push-Exit Button. Make sure you can have
good Bluetooth signal when you standing in front of the
door or gate.
Pin
Description
Color
1
Ground : Input
Brown
2
Vin : Input (+12V ~ +24V DC)
Red
3
V+: Output
Orange
4
Sel_Vsource: DO option.
DO: V-, connect to Ground Pin 1.
DO: V+, connect to V+ Pin 3.
Yellow
5
DO: Output (V+ / V-)
Green
6
DI-PB: Exit Door button input
(Active Low, reference to ground)
Blue
7
Sin_Sensor: Door position sensor
input
Violet
8
NO:
NC:
COM
Extra Relay Output Port
(Dry Contact)
Grey
9
White
10
Black
Note: Depends on target Electric Lock’s input requirement,
“DO pin” could output “V+ or V- signal”. But most of Electric
Strike/Bolt/Lock use “V-“as lock/unlock state trigger.
External Backup power input terminal:
1
V+
Red (Right Side)
2
Ground
Black (Left Side)