Signamax Model -065-7700 - Manual (Page 191)

Hardened Managed PoE Ethernet Switch
User’s Manual 190
Appendix A
DB9 DCE pin assignment
Pin no. Name RS232 Signal name
1 DCD Data Carrier detect
2 RxD Received data
3 TxD Transmit data
4 --- N/C
5 GND Signal ground
6 DSR Data set Ready
7 --- N/C
8 CTS Clear to send
9 --- N/C