Installation guide

5-2 Cisco 4000 Series Installation Guide
Booting the Router for the First Time
Take the following steps to power up the router:
Step 1 If you have an AC-powered system, plug the system power cord into a
3-terminal, single-phase power source that provides power within the acceptable
range (100–240 VAC, 50–60 Hz, 3.0–1.5A).
Step 2 If you have a DC-powered system, make sure to connect the input power supply
as described in the section “DC-Input Power Supply Connection” in the chapter
“Router Installation.”
Warning This product relies on the building’s installation for short-circuit (overcurrent)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S.
(240 VAC, 10A international) is used on the phase conductors (all current-carrying
conductors).
Step 3 Turn ON the system power switch. The LED labeled POWER on the front panel
should go on.
Step 4 Verify that the OK LED on the right side of the front panel goes ON after a few
seconds delay.
Booting the Router for the First Time
You configure Cisco 4000 series routers using the Cisco command interpreter, which is
called the EXEC. You must log in to the router before you can enter an EXEC command.
For security purposes, the EXEC has two levels of access to commands, user EXEC mode
and privileged EXEC mode.
To enter the privileged mode you must enter the enable secret password.
Using the Enable Secret and the Enable Passwords
The commands available in user EXEC mode are a subset of those available in privileged
EXEC mode. Because many privileged-level EXEC commands are used to set operating
parameters, you should password-protect these commands to prevent unauthorized use.