Eaton HMi VU Series - Page 7

HMi VU Series Instruction Leaflet
EATON CORPORATION www.eaton.com 6
COM3 Port
MODE1 MODE2 MODE3
PIN
RS-232 RS-422 RS-485
1
TXD+
(RTS+)
D+
2 RXD
3 TXD
4
RXD+
(CTS+)
5 GND GND GND
6
TXD-
(RTS-)
D-
7
8
9
RXD-
(CTS-)
Note1: Blank = No Connection.
Note2: When COM2 port is used for RS-422 with
flow control, COM3 Port pins 1, 4, 6, and 9 are
used for the signals, RTS+, CTS+, RTS- and
CTS- as shown in brackets.
Ethernet Port
Contact
Ethernet Port PIN
Ethernet
1 TX+
2 TX-
3 RX+
4
5
6 RX-
7
8
Note: Blank = No Connection.