Nortel Networks 1000ASE-XD - Manual (Page 199)

Appendix D Connectors and pin assignments 199
Using the BayStack 420 10/100/1000 Switch
Table 55 lists the DB-9 Console port connector pin assignments.
Table 55 DB-9 Console port connector pin assignments
Pin Signal Description
1 CD Carrier detect (not used)
2 TXD Transmit data (output)
3 RXD Receive data (input)
4 DTR Data terminal ready (not used)
5 GND Signal ground
6 DSR Not used
7 RTS Request to send (not used)
8 CTS Not used
9 RI Ring indicator (not used)
Shell Chassis ground