Nortel BayStack 450 Using Manual page 275

DB-9 (RS-232-D) Console/Comm Port Connector
The DB-9 Console/Comm Port connector
communications equipment (DCE) connector. The DSR and CTS signal outputs
are always asserted; the CD, DTR, RTS, and RI signal inputs are not used. This
configuration enables a management station (a PC or console terminal) to connect
directly to the switch using a straight-through cable.
1
6
Figure E-4.
Table E-2
Table E-2.
Pin
1
2
3
4
5
6
7
8
9
Shell
302401-D Rev 00
5
9
619EA
DB-9 Console/Comm Port Connector
lists the DB-9 Console/Comm Port connector pin assignments.
DB-9 Console/Comm Port Connector Pin Assignments
Signal
CD
TXD
RXD
DTR
GND
DSR
RTS
CTS
RI
Connectors and Pin Assignments
(Figure E-4) is configured as a data
Description
Carrier detect (not used)
Transmit data (output)
Receive data (input)
Data terminal ready (not used)
Signal ground
Data set ready (output always asserted)
Request to send (not used)
Clear to send (output always asserted)
Ring indicator (not used)
Chassis ground
E-5