15
Figure
1-13
You can refer to the following sheet for alarm input and output information.
Parameter
Grounding Alarm
Ground line
Alarm Input
1, 2, …, 8. It becomes valid in low voltage.
1-NO C
，
2-NO C
，
3-NO C
Three NO activation outputs.
485 A/B
485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120
Ω
between A/B cables if there are
too many PTZ decoders.
1.8.2
One type of the alarm port is shown as in Figure 1-14.
Figure
1-14
You can refer to the following sheet for alarm input and output information.
Parameter
Grounding Alarm
Ground line
Alarm Input
1, 2, …, 16.. It becomes valid in low voltage.
1-NO C
，
2-NO C
，
3-NO C
Three NO activation outputs.
485 A/B
485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120
Ω
between A/B cables if there are
too many PTZ decoders.
One type of the alarm port is shown as in Figure 1-15.
AB Connection
port
AB connection
port
