76
83507013 Rev G
7.3 Rear Panel RS232/RS485 Connector
The RS232/RS485 interface is accessible through the rear panel RS232/RS485 IN and
RS485 OUT connectors. The connectors are 8 contact RJ-45. The IN and OUT connectors
are used to connect power supplies in a RS232 or RS485 chain to a controller. Refer to Fig.
7-1 for IN/OUT connectors.
NC
NC
RX
NC
NC
TXD
RXD
TXD
RXD
RXD
TXD
RXD
TXD
SG
SG
-
-
-
-
+
+
+
+
TX
OUT
IN
Fig.7-1: Rear panel J3 IN/OUT connectors pinout
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
Shield
(connector enclosure)
NOTE
Tx and Rx are used for RS232 communication. Txd +/- and Rxd +/- are used for
RS485 communication. Refer to RS232 and RS485 cabling and connection details.
7.4 Connecting Power Supplies to RS232 or RS485 Bus
7.4.1 Single Power Supply
1. Select the desired interface RS232 or RS485 using rear panel setup switch SW1-6
(Section 4.4).
RS232: DOWN position
RS485: UP position
2. Connect rear panel IN connector to the controller RS232 or RS485 port using a
suitable shielded cable. Refer to Figures 7-2, 7-3 and 7-4 for available RS232 and
RS485 cables.
