1 | Cerberus PACE Compact cabinet |
2 | External Fire brigade call station (485, AT) PT2003-A1 |
3 | MeanWell SD-50B-24 DC/DC Converter (50W) PCA2011-A1 or MeanWell SD-100B-24 DC/DC Converter (100W) PCA2018-A1 |
4 | Ground fault monitoring (24V) PCA2001-A1 |
5 | ICPDAS I-7510 (RS485, isolated) PNA2009-A1 |
6 | Call station interface (RS485) PTO2008-A1 |
7 | Wiring to PTO2008-A1 |
8 | Copper Ethernet cable (CAT5) with RJ45 connector, connecting PTO2008-A1 to PT2003-A1 |
The figure above displays a wiring example of one PT2003-A1 being connected to one digital audio matrix. This wiring can be utilized for PT2003-A1 in evacuation use cases.
PCA2011-A1 and PCA2018-A1 (3) provide isolated DC 24 V.
A short circuit outside of the cabinet has no impact on the signals in the cabinet.
The PCA2001-A1 (4) detects a ground fault on the 24 V wiring to PT2003-A1 (2).
The PNA2009-A1 (5) provides an isolated 'PACE-Bus' (RS485). No other components are allowed on 'PACE-Bus' (RS485) together with PT2003-A1. The PT2003-A1 is connected with one PNA2009-A1. A short circuit outside of the cabinet has no impact on the 'PACE-Bus' communication to the other 'PACE-Bus' components.
The 24 V power supply, the 'PACE-Bus' (RS485) and the analog audio signal are connected to PTO2008-A1 (6).
A fuse on the PTO2008-A1 protects the internal 24 V power supply.
The PTO2008-A1 provides an RJ45 connector for all the signals, facilitating the wiring of the PT2003-A1.
Standard copper Ethernet cables (CAT5) with RJ45 connectors are used for the wiring (8), connecting PTO2008-A1 to PT2003-A1.