7 fire alarm – Zigen AX-88 Audio User Manual
Page 21
Matrix Switching System—User Manual
20
15
0F
01111
ON
OFF
OFF
OFF OFF
16
10
10000
OFF
ON
ON
ON
ON
17
11
10001
OFF
ON
ON
ON
OFF
18
12
10010
OFF
ON
ON
OFF
ON
19
13
10011
OFF
ON
ON
OFF OFF
20
14
10100
OFF
ON
OFF
ON
ON
21
15
10101
OFF
ON
OFF
ON
OFF
22
16
10110
OFF
ON
OFF
OFF
ON
23
17
10111
OFF
ON
OFF
OFF OFF
24
18
11000
OFF
OFF
ON
ON
ON
25
19
11001
OFF
OFF
ON
ON
OFF
26
1A
11010
OFF
OFF
ON
OFF
ON
27
1B
11011
OFF
OFF
ON
OFF OFF
28
1C
11100
OFF
OFF
OFF
ON
ON
29
1D
11101
OFF
OFF
OFF
ON
OFF
30
1E
11110
OFF
OFF
OFF
OFF
ON
31
1F
11111
OFF
OFF
OFF
OFF OFF
6.0.5.7 Fire Alarm
A Fire Alarm port for fire alarm cable connected to fire alarm systems serve as life lines
to safe and secure buildings. Once the matrix senses fire alarm contact closure, all
zones will be muted, and restored to the original volume and settings after relieving the
fire alarm. When the pins of fire alarm port (closed), it will actuate the fire alarm system.
Figure 6-14 Fire Alarm Port