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C
ABLES
Console Port Pin Assignments
The DB-9 serial port on the switch's rear panel is used to connect to the
switch for out-of-band console configuration. The on-board menu-driven
configuration program can be accessed from a terminal, a PC running a
terminal emulation program, or from a remote location via a modem
connection. The pin assignments used to connect to the serial port are
provided in the following tables.
Figure B-2. DB-9 Console Port Pin Numbers
DB-9 Port Pin Assignments
EIA
CCITT
Circuit
Signal
BB
104
BA
103
AB
102
No other pins are used.
Console Port to 9-Pin COM Port on PC
Switch's 9-Pin
Serial Port
2 RXD
3 TXD
5 SGND
No other pins are used.
B-6
Description
RxD (Received Data)
TxD (Transmitted Data)
SGND (Signal Ground)
CCITT Signal
<---------RXD ------------
-----------TXD ---------->
-----------SGND ----------
Switch's
PC DB9
DB9 DTE
DTE
Pin #
Pin #
2
2
3
3
5
5
PC's 9-Pin
COM Port
3 TxD
2 RxD
5 SGND
Signal
Direction
DCE-DTE
------>
<------
--------
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