2
2 x 9 pin Terminal audio input/output, an alarm, a sensor, serial devices
Figure 3. Terminal block
Audio Input
DN9131 have one channel mono audio input.
Audio Output
DN9131 have one channel mono audio output. The audio output very
low-watt, therefore it requires amplifier speaker (Do not use headphone
/earphone directly)
Digital Alarm Input (DI1, DI2)
DN9131 supports two digital inputs. It can be connected either voltage
type sensor or relay type sensor as following Figure 4 and Figure 5.
Caution
!
Do not use voltage and relay type sensor together.
Please pay attention to electric characteristics during installation.
Figure 4. Voltage Type Digital Input Connection
AOut
AOut GND
DO ch1
DO ch2
DO GND
RS-485 D+
RS-485 D-
RS-485 GND
DI GND
DI ch2
DI ch1
Ain GND
Ain
RS-232C GND
RS-232C TX
RS-232C RX
ch1
ch2
GND
1 2
Sensor 1
Sensor 2
