TCP/IP Network Access Controller
14
2.9
Connecting to the Alarm Output
Two alarm outputs are provided. Users can assign the corresponding relay status to the
different events. There are three terminals: COM, N.O. and N.C. The wiring depends on the
alarm device. Please read the user manual of the external alarm devices before wiring.
Using the alarm output 1 as an example, the method to connect the alarm device to the
alarm output 1 is shown in figures below:
Figure 2-8 Connecting to the N.O. alarm device
Figure 2-9 Connecting to the N.C. alarm device
Exteral
Alarming
Device
C.terminal
N.O. terminal
COM
N.O.
21
20
22
23
18
19
N.C.
COM
N.C. terminal
C.terminal
Exteral
Alarming
Device
21
20
22
23
18
19