User`s manual

5-4 Intellio CP-204J User’s Manual
Type 3: Connecting Intellio CP-204J to a DTE device with 3-pin wiring.
If the “Hardware flow control” feature is set to “ON”, you must loop
back (or short) the RTS with CTS and DSR with DTR, DCD on MOXA
site, indicated in dash-lines of the following diagrams. If the “
Hardware
flow control
” feature is set to “OFF”, you could just leave RTS, CTS,
DSR, DTR, DCD open, ignoring the connection indicated in dash-lines.
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
CP-204J
RJ45 Plug Pin 1
CP-204J DTE Device
RJ45 Jack Cable Wiring DB25 Male
Connector Connector
TxD 5 3 RxD
RxD 6 2 TxD
GND 4/7 7 GND
RTS 3 5 CTS
CTS 8 4 RTS
DTR 9 6 DSR
DSR 2 20 DTR
DCD 1 8 DCD
² 4/7 means either line 4 or line 7 can be used for GND.
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
CP-204J
RJ45 Plug Pin 1
CP-204J DTE Device
RJ45 Jack Cable Wiring DB9 Male
Connector Connector
TxD 5 2 RxD
RxD 6 3 TxD
GND 4/7 5 GND
RTS 3 8 CTS
CTS 8 7 RTS
DTR 9 6 DSR
DSR 2 4 DTR
DCD 1 1 DCD
² 4/7 means either line 4 or line 7 can be used for GND.