Both PC1001-A3 and PC1002-A3 Cerberus PACE Compact digital audio matrix boards provide 4 'PACE-Bus' (RS485) connectors ('1-RS485' to '4-RS485') in the options area. These connectors can be used to connect the 'PACE-Bus' (RS485) operating terminals and the 'PACE-Bus' (RS485) call stations.
'PACE-Bus' (RS485) connectors - '1-RS485' to '4-RS485'
Pin | Description | Remark |
|---|---|---|
1 | D- | RS485 data - |
2 | D+ | RS485 data + |
3 | GND | - |
4 | 24 V | - |
These connectors are only used to connect the internal 'PACE-Bus' (RS485) components in the cabinet.
If these connectors are used to connect the external 'PACE-Bus' (RS485) components, they must be secured with the components below:
- The RS485 isolator: 'ICPDAS I-7510 (RS485, isolated)' PNA2009-A1
- The 'MeanWell SD-50B-24 DC/DC Converter (50W)' PCA2011-A1 or the 'MeanWell SD-100B-24 DC/DC Converter (100W)' PCA2018-A1
- The 'Ground fault monitoring (24V)' PCA2001-A1
- Or
- the 'RS485 module (1 port)' PN1002-A1 with integrated DC/DC converter and ground fault monitoring.
- Or
- The 'RS485 module (1 port, DIN rail)' PN2009-A1 with integrated DC/DC converter and ground fault monitoring.
It ensures that a short circuit on the external wiring does not influence the internal function of the cabinet.