27
Terminal
Description
Terminal
Description
WRT
R
Door
phone
provide Fire sensor with
12V/0.5A
voltage
output
External
alarm
Door
phone
provide IR sensor
with
12V/0.5A
voltage
output
GND
GND
IR
Fire
Alarm
output
Te r m i n a l m a s k
External alarm signal button
GND
GND
External
manual
doorbell
button
Make
node
1 and
node
short
circuit ,then release, can call the lift.
Make
node
1 and
node
short
circuit for more than 5s ,then release, can enter screen calibration
External
doorbell
Node
1
GND
Node
2
GND
External
alarm
D e s c r i p t i o n
+1 8V DC
voltage
input
GND
+18V
GND
Socket for power input
Fire sensor
ON
/
OFF
signal
input
Door contact sensor
ON
/
OFF
signal
input
IR sensor
ON
/
OFF
signal
input
Socket for external sensor
and alarm signal output
1
4
3
2
Gas sensor
ON
/
OFF
signal
input
User-defined sensor
ON
/
OFF
signal
input
5~8
Socket for external alarm
and doorbell
Socket for node