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1) Alarm input
1,2,3,4
2) Ground
3) RS232 serial interface to send and receive
4) RS485 interface
5) Alarm inputs
5,6,7,8
6) Ground
7) Alarm output
16 External alarm interface schematic:
Parameters
G
R, T
A, B
2.5.6. Alarm Input Port Description
Please refer to the following sheer for more information.
•
Grounding alarm inputs. (Normal open or Normal close type)
•
Please parallel connect COM end and GND end of the alarm detector (Provide external
power to the alarm detector).
① ⑥⑧ alarm input ②⑦ ground ③ alarm output RS485④RS232
Meaning
GND
Send and receive serial interface
485 communication interface
7
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