43
Icon
Port Name
Function
Alarm input port
ground end
Alarm input ground end.
NO1
～
NO3
C1
～
C3
Alarm output port
1
～
3
z
groups of alarm output ports. (Group 1
：
port NO1
～
C1,Group 2:port NO2
～
C2,Group 3:port NO3
～
C3
）
).Output alarm signal to the alarm device. Please
make sure there is power to the external alarm device.
z
NO
：
Normal open alarm output port.
z
C
：
Alarm output public end.
2.2.5
31/31-P/31-S
Series
The 31series rear panel is shown as below. See Figure 2-19.
Figure 2-19
The 31-P series rear panel is shown as below. See Figure 2-20.
Figure 2-20
The 31-S series rear panel is shown as below. See Figure 2-21.
Figure 2-21
Please refer to the following sheet for detailed information.
Port Name
Connection
Function
Network
port
/
10M/100Mbps self-adaptive Ethernet port.
Connect to the network cable.
