Connect external components
Fire brigade call station (485, AT) PT2003-A1
7
148 | 173
A6V10430579_en--_b
Call station connectors - 'X1' and 'J1'
Pin
Description
Remark
1
SO-
Audio out -
2
SO+
Audio out +
3
GND
GND reference voltage
4
D+
RS485 data +
5
D-
RS485 data -
6
DC 24 V
DC 24 V
7
SI-
Audio in -
8
SI+
Audio in +
Table 118: PT2003-A1 call station connectors - 'X1' and 'J1'
7.5.7 Configuration with the ID switch
The ID switch must be set to the correct values to identify the components on the
'PACE-Bus' (RS485). The ID must be unique on one 'PACE-Bus' (RS485).
1
2
3
4
ID
Description
0
0
0
0
-
Not allowed
1
0
0
0
-
Not allowed
0
1
0
0
2
-
1
1
0
0
3
-
0
0
1
0
4
-
1
0
1
0
5
-
0
1
1
0
6
-
1
1
1
0
7
-
0
0
0
1
8
-
1
0
0
1
9
-
0
1
0
1
10
-
1
1
0
1
11
-
0
0
1
1
12
-
1
0
1
1
13
-
0
1
1
1
14
-
1
1
1
1
15
-
Table 119: PT2003-A1 set RS485 address with ID switches
● 0 = OFF
● 1 = ON