Data Sheet for Product

2
Smart Infrastructure A6V10430563_en--_b
2020-06-30
Use
Call stations / operating terminals
Ground fault monitoring (24V) PCA2001-A1
The ground fault monitoring (24 V) PCA2001-A1 is a module for monitoring 24 V lines
outside of the system cabinets for supplying remote system components (e.g., call stations).
It measures the resistance of both wires in the lines to the protective conductor (PE).
According to the corresponding standard, a ground fault is detected when a resistance of
<50 kOhm is measured to the protective conductor. A fault message is transmitted by the
relay changeover contact and indicated on the printed circuit board via LED.
MeanWell SD-50B-24 DC/DC PCA2011-A1
MeanWell SD-100B-24 DC/DC PCA2018-A1
The DC/DC converters PCA2011-A1 and PCA2018-A1 are required to electrically isolate
DC 24 V lines exiting the system cabinet from the internal DC 24 V power supply. Any short-
circuit or ground fault that occurs outside the system cabinet will therefore not affect the
internal 24 V supply.
The devices are protected against short-circuits, overload and overvoltage.
Matrix
Backup extension PC2003 PCA2014-A1
The PCA2014-A1 plug in module for Digital audio matrix (4/4/16) PC2003-A1 is to connect a
backup amplifier and still use all 4 amplifier channels. It is for sites that only have one
PC2003-A1 matrix. The PCA2014-A1 switches the correct audio signal to the backup
amplifier in case of an amplifier fault of the 4 regular amplifiers.
The module is controlled by 2 digital outputs of the PC2003-A1.
I/O interfaces
Input/Output extension (digital 16) PCIO2001-A1
The input/output extension PCIO2001-A1 extends the number of digital inputs and outputs
for each audio matrix by additional 16 inputs and 16 outputs.
A OUT extension relay (8) PCO2001-A1 card can be connected via a provided RS232-based
'PACE-Bus' interface.
It was specifically developed for use with the digital audio matrices PC2001-A1, PC2002-A1,
PC2003-A1, PC2005-A1, and PC2006-A1.
The PCIO2001-A1 and the audio matrix are connected via the RS485-based 'PACE-Bus'.
Output extension relay (8) PCO2001-A1
The PCO2001-A1 relay card adds a further 8 electrically isolated outputs to the existing
digital outputs of each audio matrix.
The 8 outputs are controlled via relays with changeover contacts. All three changeover
contacts are routed externally: NC, NO and center.
The PCO2001-A1 was specifically developed for use with the digital audio matrices PC2001-
A1, PC2002-A1, PC2003-A1, PC2005-A1 and PC2006-A1. The connection between the
PCO2001-A1 and the audio matrix is established via the RS232-based 'PACE-Bus'.