Dahua ASC1202C-D, User Manual

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Installation Guide 8
Port Wiring Terminal Cable Color Description
GND Black
Reader power supply
12V Red
Table 2-4
Reader Type Connection Mode Length
485 Reader CAT5e network cable, 485 connection 100m
Wiegand Reader CAT5e network cable, Wiegand connection 100m
2.3.5 Wiring Description of External Alarm Input
4-ch external alarm input connection is shown in Figure 2-9. Please refer to Table 2-5 for
descriptions of wiring terminals.
Figure 2-9
Table 2-5
Port Wiring Terminal Description
External
alarm
input
ALM1 Alarm input port 1
External alarm input ports are
able to connect smoke detector
and IR detector etc..
External alarm can link door
open and closed status.

ALARM1
～
ALARM2
external alarm links all
doors to be normally open.

ALARM3
～
ALARM4
external alarm links all
doors to be normally
closed.
GND
Shared by alarm input port 1 and
2
ALM2 Alarm input port 2
ALM3 Alarm input port 3
GND
Shared by alarm input port 3 and
4
ALM4 Alarm input port 4
2.3.6 Wiring Description of External Alarm Output
With 2-ch external alarm output, after external alarm input triggers an alarm, the alarm output
device gives an alarm for 15s.