83
Preface
External
Internal
GPIO1
GPO5
GPO6
GPIO2
GPIO7
GPO4
GPIO8
GPIO3
GPIO_GND
CN3
9
10
11
12
13
14
15
7
16
VCC5
6
11
5
12
4
13
External
Internal
GPIO1
GPO5
GPO6
GPIO2
GPIO7
GPO4
GPIO8
GPIO3
GPIO_GND
CN3
9
10
11
12
13
14
15
7
16
Resistor
External power
Dry Contact
Each channel can accept 3~24Vdc voltage. And it is able to drive 150mA
current for low level.
The SW1 needs to switch to “OFF” state. The GPO signal will not have a pull
up resistor internally when you switch “SW1” to “OFF” state.
The figure below shows how to connect an external input source to one of
the output channel.
Digital Output
CN3 connector for GPO signal (digital signal output)
The CN3 connector has 4 digital output channels by default. The signal
connection of CN3 support two connected methods for output signal type.
The output signal has two states, one is low level (driven to 0V from GPO
signal) other is open (high voltage is provided from external device).
Wet Contact (default)
The SW1 needs to switch to “ON” state. The GPO signal will have a pull up
resistor to 5V internally when you switch “SW1” to “ON” state. The output
signal has two states, one is low level (driven to 0V from GPO signal) other
is high level (driven to 5V from GPO signal).
The figure below shows how to connect an external input source to one of
the output channel.
GPO
Register
Port
1
HIGH
0
GND
GPO
Register
Port
1
OPEN
0
GND
Summary of Contents for NRM 303
Page 16: ...6 Preface Mechanical Dimensions NRM303...
Page 20: ...12 Preface Bottom View CN13 CN12...
Page 45: ...37 Preface Bottom View J14 JP1...
Page 79: ...71 Preface G Sensor iButton...
Page 80: ...72 Preface RFID Tracker...
Page 102: ...94 Preface...
Page 103: ...95 Preface...
Page 107: ...99 Preface After Event 2 is defined the Action Types will be shown...
Page 111: ...103 Preface Log Stop log Stop showing log message Clear Clear all log messages...
