Installation; Table 137: Pca2008-A1 Dc 24 V Power Supply Connector - 'Cn7; Table 138: Pca2008-A1 Microphone Input Connectors - 'Cn1' To 'Cn4; Table 139: Pca2008-A1 Microphone Sum Output Connector - 'Cn5 - Siemens Cerberus PACE Manual

7
Connect external components
Automatic volume control module PCA2008-A1

7.13.2 Installation

166 | 173
Power supply DC 24 V
The DC 24 V power supply connection 'CN7' is used to supply the PCA2007-A1
with power.
DC 24 V power supply connector - 'CN7'
Pin Description
1 DC 24 V
2 DC 0 V

Table 137: PCA2008-A1 DC 24 V power supply connector - 'CN7'

Connect the wiring of up to 4 'Automated volume control microphone' PCA2007-A1
to the microphone input connectors 'CN1' to 'CN4'.
Microphone input connectors - 'CN1' to 'CN4'
Pin Description
1 Signal +
2 GND
3 Signal -

Table 138: PCA2008-A1 microphone input connectors - 'CN1' to 'CN4'

Connect the summed up analog audio signals output to the audio input signal of
the digital audio matrices.
Use always input 4 of the digital audio matrices for this function.
Microphone sum output connector - 'CN5'
Pin Description
1 Signal +
2 GND
3 Signal -

Table 139: PCA2008-A1 microphone sum output connector - 'CN5'

The PCA2008-A1 reports a fault via a fault relay output.
A fault is reported in one of these cases:
●
Open or short on the wiring to microphones
●
No microphone is connected and the input is not deactivated
●
PCA2007-A1 is not supplied with DC 24 V
Fault relay output connector - 'CN6'
Pin Description
1 NO
2 Com
3 NC

Table 140: PCA2008-A1 fault relay output connector - 'CN6'

Remark
-
-
Remark
-
GND reference voltage
-
Remark
-
GND reference voltage
-
Remark
Connected to Com - fault
-
Connected to Com - regular working mode
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