Hi Ahmad,
Cannot provide the diagram using this forum but I can give you what each pinout does and the signal it transmits.
Pin Description signal
1 Carrier detect CD
2 * Receive data RD
3 * Transmit data TD
4 Data terminal ready DTR
5 * Signal ground SG
6 Data set ready DSR
7 Request to send RTS
8 Clear to send CTS
9 Ring indicator RI