User`s guide

B/8 XEN OWNER'S HANDBOOK
Technical Information
Appendix B
Port characteristics
Serial ports 9-way male D-type
(COM1/COM2)
51
6
9
10101
Pin I/O Function
1 I Data carrier detect
2 I Receive data
3 O Transmit data
4 O Data terminal ready
5 NA Signal ground
6 I Data set ready
7 O Request to send
8 I Clear to send
9 I Ring indicate