Cisco Systems Cisco 12008 manual Starting the System and Observing Initial Conditions

Starting the System and Observing Initial Conditions

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:

Step 1 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 Figure 1-6 in Chapter 1 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 Figure 1-7 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.

Step 2 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.

Step 3 During the RP boot process, observe the two, 4-digit alphanumeric LEDs at the bottom of the RP faceplate (see Figure 4-1). Table 4-1 shows representative system messages that appear in the RP LEDs.

4-4Cisco 12008 Gigabit Switch Router Installation and Configuration Guide