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Cables
Console Port Pin Assignments
DB-9 Port Pin
Assignments
EIA
CCITT
Circuit
Signal
CF
109
BB
104
BA
103
CD
108.2
AB
102
CC
107
CA
105
CB
106
CE
125
58
The DB-9 serial port on the panel of the network management module is
used to connect the switch to a management device. 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. You can also establish a network connection from
a remote site using SLIP protocol to connect to this port with modems.
The pin assignments used to connect various device types to the
switch's management port are provided in the following tables.
Figure 19 DB-9 Console Port Pin Numbers
Table 14 DB-9 Port Pin Assignments
Description
DCD (Data Carrier Detected)
RxD (Received Data)
TxD (Transmitted Data)
DTR (Data Terminal Ready)
SG (Signal Ground)
DSR (Data Set ready)
RTS (Request-to-Send)
CTS (Clear-to-Send)
RI (Ring Indicator)
Pin 1
Switch's
PC DB9
DB9 DTE
DTE
Pin #
Pin #
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
Pin 9
Modem
Signal
DB25
Direction
DCE
DTE-DCE
Pin #
8
<----------
3
<----------
2
---------->
20
---------->
7
---------
6
<----------
4
---------->
5
<----------
22
<----------
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