Mounting Instructions

Install internal components
Digital audio matrices PC2001-A1, PC2002-A1, PC2005-A1 and PC2006-A1
6
42 | 173
A6V10430579_en--_b
6.2.4 Connect 'PACE-Bus' (RS485)
The digital audio matrices provide one 'PACE-Bus' (RS485) connector 'RS485' at
the rear of the housing. This connector can be used to connect the 'PACE-Bus'
(RS485) input and output expansion modules and the 'PACE-Bus' (RS485) call
stations.
Fig. 11: PC2001-A1, PC2002-A1, PC2005-A1 and PC2006-A1 'PACE-Bus' (RS485) connector
'PACE-Bus' (RS485) connector - 'RS485'
Pin
Description
Remark
1
TX-
RS485 data TX-
2
TX+
RS485 data TX+
3
RX-
RS485 data RX-
4
RX+
RS485 data RX+
5
GND
GND reference voltage
6
10 V
10 V reference voltage
Table 4: 'PACE-Bus' (RS485) connector - 'RS485'
The RS485 connector provides a full-duplex RS485 interface. A half-duplex
connection is required to connect other 'PACE-Bus' (RS485) components.
Fig. 12: Connects to RS485 components
The connector is only used to connect the internal 'PACE-Bus' (RS485)
components in the cabinet.
If the 'PACE-Bus' (RS485) will be also used to connect the external 'PACE-Bus'
(RS485) components, then use them together with these components:
● 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
1
RS485 RS232
1
TX- TX+ RX- RX+ GND 10V
D- D+