Installation 4-31Octel Overture 200/300 Serenade 3.0PB60014–01SIC8 I/O Panel PinoutsThe following pin assignments are on the SIC8 I/O panel for port 1 (DB 26 connector).50-PinNumberSignalFunctionI/O Line1 GND2 TXD1 LI/O (18)3 RXD1 LI/O (1)4 RTS1 LI/O (37)5 CTS1 LI/O (20)6 DSR1 LI/O (3)7 GND8 DCD1 LI/O (39)9 GND10 N/C11 N/C12 N/C13 N/C14 N/C15 N/C16 N/C17 N/C18 N/C19 N/C20 DTR1 LI/O (22)21 N/C22 N/C23 N/C24 N/C25 N/C