Mounting Instructions

Connect external components
Fire brigade call station (485, AT) PT2003-A1
7
146 | 173
A6V10430579_en--_b
7.5.3 PT2003-A1 connectors
Fig. 95: PT2003-A1 connector overview
The PT2003-A1 is internally pre-installed.
7.5.4 Microphone input
The PT2003-A1 provides one microphone input. This microphone input is used for
the handheld microphone.
Microphone input connector Mic In - 'X3'
Pin
Description
Remark
1
PTT
Push to the talk button
2
Signal -
-
3
GND
GND reference voltage
4
Signal +
-
Table 116: PT2003-A1 microphone input connector Mic In - 'X3'
1
X3
Mic In
Speaker
To Microphone
X1
1
1 4
ON
ID
Switch
X2
1
J1
Speaker
Out
Microphone
Position
Switch
Cabinet
connection