This is the wiring for the Cyclades RJ-45/DB-9 adapter. RJ45 DB9F RTS 1 ---- Blue ---- 8 CTS DTR 2 ---- Orange -- 1 DCD TxD 3 ---- Black --- 2 RxD GND 4 ---- Red ----- 5 GND CTS 5 ---- Green --- 7 RTS RxD 6 ---- Yellow -- 3 TxD DCD 7 ---- Brown --- 4 DTR DSR 8 ---- White --- * * The white wire is taped and not used. Pin insertion side of DB9F connector: \-----------------------------------------/ \ / \ 1 2 3 4 5 / \ / \ 6 7 8 9 / \_______________________________/ \----------------------------------------/ \ / \ Orange Black Yellow Brown Red / \ / \ 6 Green Blue 9 / \______________________________/