Westermo LD-34 - Manual (Page 6)

12 6603-2001
Example: How to connect
Power connection
LD-34 DC
2-position screw-terminal
Connection Power
supply
– – Voltage
+ + Voltage
Screw Power
supply
L 230V
N AC power
Earth
Power connection
LD-34 AC
3-position screw-terminal
TD
RD
RTS
CTS
SG
RS-232
Equipment
DCE
Not used
TD
RD
RTS
CTS
SG
RS-232
Equipment
DCE
SG
CTS
RTS
RD
TD
RS-232
Equipment
DTE
EXPANSION
SG
CTS
RTS
RD
TD
RS-232
Equipment
DTE
Channel 4
Channel 2
Channel 3
Channel 5
GND
CTS
RTS
RD
TD
GND
CTS
RTS
RD
TD
RD
TD
CTS
RTS
GND
RD
TD
CTS
RTS
GND
GND
CTS
RTS
RD
TD
A0
A1
EN
E1
COM
CPU
Digital out
Com Port