CMU 100 - RS485 to 2x RS232 fallback switch
3.4.3 RS232 INTERFACE BOARD
Description
Single, nonisolated, full duplex, RS232 port with DB9 female connector. Supported Rx, Tx and
GND pins.
Connector pin table
DB9 F
2
3
5
Description
RX
TX
GND
Direction
IN
OUT
-
Device:
Document:
Code:
Date:
Page:
User manual CMUMU511
11
Picture 6: Standard data rate vs cable lenght
Picture 5: RS485 interface board appearance with switch settings