User`s manual

Connection Option (Opt8x) and Cable Wiring
Intellio C218Turbo User's Manual 5-7
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt8D
Opt8D DTE Device
DB9 Male DB25 Male
RxD 2 2 TxD
TxD 3 3 RxD
GND 5 7 GND
RTS 7 4 RTS
CTS 8 5 CTS
DTR 4 6 DTR
DSR 6 20 DSR
DCD 1 8 DCD
If [Hardware flow control] feature is set to “OFF”, users could just leave RTS,
CTS, DSR, DTR, DCD open.
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt8A/S
Opt8A/S DTE Device
DB25 Female DB25 Male
RxD 2 2 TxD
TxD 3 3 RxD
GND 7 7 GND
RTS 5 4 RTS
CTS 4 5 CTS
DTR 20 6 DTR
DST 6 20 DSR
DCD 8 8 DCD