Ametek Dycor CG1100 Series User Manual page 33

Converter Part # 73858SE
ECHO
PC
RS-232
DB-9
Converter Part # 73858SE
PC
RS-232
DB-9
Figure 3-11. RS-485 to RS-232 conversion for host PC, 4-wire and 2-wire.
4-WIRE
. .
TD(A)
TD(B)
OFF ON
RD(A)
RD(B)
GND
+12V
2-WIRE
TD(A)
TD(B)
9
8
5
4
RS-485
Power
CG1100
Supply
(Type DB9M)
5
4
RS-485
CG1100
(Type DB9M)
Installation | 3-15
RX-
RX+
TX-
TX+
RX-(A)
RX+(B)