Connectors and Pin Assignments
309985-B Rev 00
D-5
DB-9 (RS-232-D) Console/Comm Port Connector
The DB-9 Console/Comm Port connector (
Figure D-4
) is configured as a data
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.
Figure D-4.
DB-9 Console/Comm Port Connector
Table D-2
lists the DB-9 Console/Comm Port connector pin assignments.
Table D-2.
DB-9 Console/Comm 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
Data set ready (output always asserted)
7
RTS
Request to send (not used)
8
CTS
Clear to send (output always asserted)
9
RI
Ring indicator (not used)
Shell
Chassis ground
5
6
9
1
619EA
