Delta Electronics DOP-A/AE/AS RXD (2) (3) TXD TXD (3) GND (5), (2) RXD (5) GND

Delta DOP Series HMI Connection Manual|DOP-A/AE/AS Series
1-58 Revision January, 2008, Doc. Name: 2007PDD23000007
RS-232
DOP
9 pin D-SUB male (RS-232)
Controller 9 pin D-SUB male
(RS-232 for LG K120S/200S)
Controller 9 pin D-SUB male
(RS-232 for LG K120S/200S)
RXD (2) (3) TXD
TXD (3)
GND (5)
(2) RXD
(5) GND
Top View
NOTE
1) If connecting to Pin 4 (RXD), Pin 7 (TXD) and Pin5 (SG), it indicates that CNet protocol is used (Please
refer to the section “LG Master-K CNET”. 120S/200S protocol and CNet protocol cannot be used
simultaneously. The users only can select either 120S/200S protocol or CNet protocol.
Pin1