Cisco Systems Cisco 12008 Starting the System and Observing Initial Conditions

Starting the System and Observing Initial Conditions
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
4-4
Starting the System and Observing Initial Conditions
This section describes the initial system startup processes and procedures.
To start up your Cisco 12008, perform the following steps:
Step1 Apply power to each installed power supply by turning its rotary power switch
fully clockwise to the ON (|) position.
As power is applied to the AC-input power supply(ies), both the green AC
INPUT OK LED and the red OUTPUT FAIL LEDs go on momentarily. Refer
to Figure1-6 in C hapter1 for the location of these LEDs on the AC-input power
supply faceplate. Once system power stabilizes, the red OUTPUT FAIL LED
should go off and remain so; the green AC INPUT OK LED, however, should
remain on, indicating that normal power conditions exist in the router.
As power is applied to the DC-input power supply(ies), both the green INPUT
OK LED and the red OUTPUT FAIL LEDs go on briefly. Refer to Figure1-7 in
Chapter 1 for the location of these LEDs on the DC-input power supply
faceplate. Once system power stabilizes, the red OUTPUT FAIL LED should go
off and remain so; the green INPUT OK LED, however, should remain on,
indicating that normal power conditions exist in the router.
Step2 Listen for the card cage fan tray and the power supply fan tray to power up; the
fans in each fan tray should come up to full rotational speed in about 2 seconds.
The fans in both fan trays have two speeds - maximum and minimum. At initial
application of system power, the fans run at maximum speed for a time until the
system stabilizes. Then the fans revert to minimum speed, remaining in this state
until an overtemperature condition or a card cage or power supply fan failure is
detected by the router’s MBus facility. Either type of error condition causes the
fans in both fan trays to run at maximum speed.
In a noisy environment, the fan trays might be difficult to hear. In this case, you
can place your hand behind the exhaust vents at the top rear of the router
enclosure to determine if air is being expelled from the router.
Step3 During the RP boot process, observe the two, 4-digit alphanumeric LEDs at the
bottom of the RP faceplate (see Figure4-1). Table 4-1 shows representative
system messages that appear in the RP LEDs.