Allied Telesis AT-8550SP - Manual (Page 86)

Appendix A: Technical Specifications
86
RS-232 Terminal Port Pinouts
Table 15 lists the pin signals on the RS-232 terminal port.
Table 15. RS-232 Terminal Port Pin Signals
Pin Signal
1 Data Carrier Detect
2 Transmit Data
3 Receive Data
4 Data Set Ready
5 Ground
6 Data Terminal Ready
7 Clear to Send
8 Request to Send
9 Ring Indicator