20
1: Any terminal on the
ALARM IN interface
2: Any terminal on the
ALARM IN interface
3: Ground
4: Terminal G on ALARM
IN interface
5: Normal open/closed
Boolean alarm input
device
1: Alarm output circuit
inside the device
2: Any positive terminal
on ALARM OUT interface
3: Boolean alarm output
device
4: DC power
5: Any negative terminal
on ALARM OUT interface,
corresponding to 2
1: Alarm output circuit
inside the device
2: Any positive terminal
on ALARM OUT interface
3: Boolean alarm output
device
4: AC power
5: Any negative terminal
on ALARM OUT interface,
corresponding to 2
Inside the board
2
1
5
4
3
3
To DC Load
Internal circuit
Inside the board
Internal circuit
1
2
3
4
5
To AC Load
Internal circuit
Internal circuit
Inside the board
1
2
5
3
4
