EZ-TOUCH-M Revision 4
31
4 INSTALLATION
RS-232C EZTouch Panel Programming Cable (P/N EZTOUCH-PGMCBL)
COM1 Port
The COM1 Port is used to connect a programming computer or a printer to the
EZTouch Panel.
The panel only needs to be connected to a PC when you are
programming the unit.
You will use the EZTouch Panel Programming Software
to design the touch panel screens. A wiring diagram for the EZTouch Panel
RS-232C Programming Cable is shown below. The table shows EZTouch’s
pinout for RS-232C and RS-422A connections.
Connect a
Programming PC
or
Printer
COM1 Connector
Pin #
RS-232C Connection
RS-422A Connection
1
DO NOT USE
TXD– (RS-422/485)
TXD– (RS-422/485)
2
TXD (RS-232C)
DO NOT USE
TXD (RS-232C)
3
RXD (RS-232C)
DO NOT USE
RXD (RS-232C)
4
DO NOT USE
RXD– (RS-422/485)
RXD– (RS-422/485)
5
Logic GND
Logic GND
6
DO NOT USE
TXD+ (RS-422/485)
TXD+ (RS-422/485)
7
DO NOT USE
CTS (NOT USED)
DO NOT USE
CTS (NOT USED)
8
DO NOT USE
RTS (NOT USED)
DO NOT USE
RTS (NOT USED)
9
DO NOT USE
RXD+ (RS-422/485)
RXD+ (RS-422/485)
EZ TOUCH
PC COM Port
TXD
DTR
D-sub 9-pin
Male
(2)
(5)
(Shell)
D-sub 9-pin
Female
RXD
TXD
RXD
(3)
(3)
(2)
(4)
RS-232
DSR
CTS
GND
(6)
(8)
(5)
COM1
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