APPENDIX B PORT CONNECTIONS RS232 SERIAL PORTS Jl,J2,J4,J5 PIN OUTS PIN SIGNAL I----PROTGND 2----TXD* 3----RXD 4----RTS 5----CTS 6----DSR 7----GND 8----CARDET 9 NC 10 NC 11 NC 12 NC 13 NC 14 NC 15 NC 16 17 NC 18 NC 19 NC 20---DTR 21 NC 22 NC 23 NC 24 NC 25 NC B-1