27
Modbus TCP/Ethernet or Web Server/Ethernet
(when ordered) uses the RJ45 connector
Modbus RTU/RS485 or /RS422 use the
Green Terminal Blocks (Detail Below)
Display
Board
RX-
N/A
RS485 2-Wire
Must Jumper
(RX+/TX+) & (RX-/TX-)
RS422
4 Wire
RS422 4-Wire
Use RX+, RX-, TX+ & TX-
The lowest pin on the Green terminal blocks has no use
All other Display Board connectors are for factory use
ONLY. Connection to these may damage the ITC Unit
RS485
2 Wire
TX+
TX-
N/A
Communications
These connections are facilitated via the Display Board.