Usb modem connection and configuration overview – Juniper Networks J-Series User Manual

Page 54

Table 23: J-series Default Modem Initialization Commands (continued)

Description

Modem Command

Disables data compression.

%C0

When the Services Router applies the modem AT commands in the

init-command-string

command or the default sequence of initialization commands to the modem, it
compares them to the initialization commands already configured on the modem
and makes the following changes:

■

If the commands are the same, the router overrides existing modem values that
do not match. For example, if the initialization commands on the modem include

S0=0

and the router’s

init-command-string

command includes

S0=2

, the Services

Router applies

S0=2

■

If the initialization commands on the modem do not include a command in the
router’s

init-command-string

command, the router adds it. For example, if the

init-command-string

command includes the command

, but the modem

commands do not include it, the router adds

to the initialization commands

configured on the modem.

USB Modem Connection and Configuration Overview

To use USB modems to remotely manage a Services Router, you perform the tasks
listed in Table 24 on page 32. For instructions, see the cross-references in the table.

Table 24: USB Modem Connection and Configuration Overview

Instructions

Task

“Before You Begin” on page 33

Perform prerequisite tasks.

On the Services Router

“Connecting the USB Modem to the Services Router's USB
Port” on page 33

1. Connect a modem to the router.

“Configuring USB Modem Interfaces with a Configuration
Editor” on page 33

2. Configure the modem interfaces on the router.

“Verifying the USB Modem Configuration” on page 42

3. Verify the modem configuration on the router.