3Com 3C421600A, Management Manual

Page: 132 / 300

130 C
HAPTER
10: A
DVANCED
M
ODEM
C
ONFIGURATION WITH
CLI/AT
COMMANDS
Overview
Before You Begin Before you access the Console Interface, perform the following actions:
1 Connect the SuperStack II Remote Access Concentrator (RAS) 1500
console port.
2 Access the Console Interface with terminal software.
Connecting to the
RAS 1500
Connect to the RAS 1500 attaching a standard DB-9 connector to the
Console Port.
Accessing the
Console Interface
Use a communications program to select terminal software. Select 8 bits,
no parity, hardware, and 38.4 Kbps.
After configuring the RAS 1500 Console port, establish a connection
from your management station or computer.
You are now ready to use the Console Interface to configure the RAS
1500.
AT Commands AT commands are used to communicate directly with the ports within the
RAS 1500 module. You can use AT commands to change your
modem/port settings at any time.
Most commercial communications programs send an initialization string
to the modem when you start the program. Remove your software
initialization string so it does not interfere with the modem power-on
defaults.
Sending AT
Command
To send an AT command to a modem, enter the following information
into the CLI:
set switched interface rm0/slot1/mod:[modem #] at_command [at
command]
For example, to view modem settings for the first RAS 1500 modem, use
the following command:
set switched interface rm0/slot1/mod:1 at_command ATI7