Appendix A

DB9 DCE pin assignment

Pin no. Name

1 DCD

2

3

4

5

RxD

TxD

---

GND

6

7

8

9

DSR

---

CTS

---

Hardened Managed Ethernet Switch

RS232 Signal name

Data Carrier detect

Received data

Transmit data

N/C

Signal ground

Data set Ready

N/C

Clear to send

N/C

User’s Manual 169