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Hardware Description
RS232 Connector
18
The RS232, DB-9 female port on the front of the switch (shown in
Figure 1-6) is used with a VT100 terminal to manage the system. By
connecting a terminal to the connector (or by using a personal
computer with a terminal emulation program, such as the MS-
Windows' Hyper Terminal emulation program), you can access the
pre-installed Omega management program and configure the
switch.
10BASE-T / 100BASE-TX
FAST ETHERNET SWITCH
A
1X
3X
B
2X
4X
Figure 1-6 RS232 Port
This method for accessing the Omega program is referred to as "local
access" or "out-of-band" access. You can also access the program
over the web with a web browser or remotely via Telnet or an SNMP
management program.
In an IP environment, after you have initially installed the switch you
will be required to access the Omega program through the RS232
port in order to assign the switch its IP address and, if necessary, a
gateway address. Once these addresses have been assigned, you can
either continue to manage the switch through the RS232 port or
access the program via one of the other available methods.
Note
Only the RS232 port on the master switch in a stack can be used to
configure a stack locally. The RS232 ports on the slave switches are
inactive and cannot be used. (For an explanation of master and
slave switches, refer to , Chapter 3, Installing the Switch.)
Additionally, a straight-through cable is required in order to
connect a terminal to the RS232 port on the master switch.
ACTIVITY
COL
10BASE-T / 100BASE-TX
5X
7X
9X
11X
13X
15X
17X
19X
21X
6X
8X
10X
12X
14X
16X
18X
20X
22X
RS-232
STATUS
TERMINAL PORT
21
23
FAULT
MASTER
RPS
PWR
22
24
PORT ACTIVITY
RS-232
STATUS
TERMINAL PORT
23X
L /A
100M LINK /
ACTIVITY
10M LINK /
ACTIVITY
FULL DUP
HALF DUP/
COL
D/C
1
3
5
7
9
11
13
15
17
19
21
23
L /A
FAULT
MASTER
D/C
L /A
RPS
D/C
PWR
2
4
6
8
10
12
14
16
18
20
22
24
24X
RESET
RE
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