Dahua DHI-ASC1204B - Page 20

Installation Guide 10
Figure 2-12
Table 2-8
Port
Wiring Terminal
Description
Alarm output
OUT1+
 ALM-IN
triggers alarm
output.

Door timeout and
intrusion alarm output.

Tamper alarm output of
reader
Internal and external
alarm output ports are
able to connect audible
and visual sirens.
OUT1-
2.4.7 Description of Alarm Input and Output Rule
In case of alarm event, access controller can control the access and external alarm status.
Please refer to Table 2-9 for detailed alarm input and output rules.
Table 2-9
Alarm
Type
Alarm Event Alarm Signal
Input Port
Alarm Signal
Output Port
Alarm Status
External
alarm
input
Trigger no. 1 alarm
detector
ALM1 OUT1
No. 1 alarm
gives an alarm,
and links all
doors to be
normally open.
Internal
alarm
input
Intrusion alarm or
unlock timeout alarm
of no. 1 door
SR1
OUT1
No. 1 alarm
gives an alarm.
Intrusion alarm or
unlock timeout alarm
of no. 2 door
SR2
Intrusion alarm or
unlock timeout alarm
of no. 3 door
SR3
Intrusion alarm or
unlock timeout alarm
of no. 4 door
SR4
Tamper alarm of no. 1
door reader
RS-485/CASE
Tamper alarm of no. 2 RS-485/CASE