Serial Ports B, C and D SPARCserver 4/330 (4300 cpu board) Pin Signal Pin Signal 1 DCD 5 GND 2 RXD 6 DSR 3 TXD 7 RTS 4 DTR 8 CTS 9 Unused This is from page 34, Sun 4300 CPU Board Installation Manual, Table A-3 Richard Kurtz (816)995-3204 AT&T rmk at snowhit.att.com