Cardinal 825 - RS485 Terminal Connections

8545-M838-O1 Rev D  825 Installation & Technical
19
INSTALLATION, CONT.
RS485 Terminal Connections
Refer to the table and Figures No. 14 and 15 below to connect each wire to the terminal block.
RS485 COM3 – TERMINAL P20
IMPORTANT!
 COM3 requires J8 shunt installed on RS485.
 2-Wire requires J5 and J6 installed.
 4-Wire requires J5 and J6 removed.
 Install J9 if 825 is last device on RS-485 bus.
Terminal
Function
1
TXA (Transmit A)
2
TXB (Transmit B)
3
RXA (Receive A)
4
RXB (Receive B)
5
GND (Ground)
Figure No. 14
Figure No. 15