Hardware Troubleshooting 5-5
Starting Up the Cisco7206 Router Shelf
Note Although an overtemperature condition is unlikely at initial startup, the environmental
monitoring functions are included in this chapter because these functions also monitor internal
voltages.
Starting Up the Cisco 7206 Router Shelf
When you first power ON the router shelf power supply, the following should occur:
•The power supply LEDs (OK) should light immediately when you set the power supply switch
to the ON ( | ) position and remain lit during normal system operation.
If the power OK LEDs do not light, proceed to the section “Troubleshooting the Power
Subsystems.”
•You should immediately hear the fans operating.
If the fans do not operate, proceed to the section “Troubleshooting the Cooling Subsystems.”
•The I/O controller card LEDs should light in the following sequence. If they do not light as
described, proceed to the section “Troubleshooting the Processor Subsystems.”
—The I/O power OK LED lights immediately and indicates that the I/O controller card is
receiving DC power from the router midplane. This LED lights during a successful router
boot and remains on during normal operation of the router.
—The enabled LED lights after the I/O power OK LED and indicates that the network
processor card and the I/O controller card are enabled for operation by the syst em; ho we ver,
that the enabled LED lights does not mean that the Fast Ethernet port on the I/O controll er
card is functional or enabled. This LED lights during a successful router boot and remains
lit during normal router operation.
—The FE enabled LED lig hts after the enabled LED and indicates th at the Fast Ethernet por t
on the I/O controller card is initialized and enabled for operation by the system. This LED
lights during a successful router boot and remains lit during normal router operation.
—The FE link LED lights only when the Fast Ethernet port on the I/O controller card is
receiving a carrier signal from the network. (This LED remains off during normal router
operation unless there is an incoming carrier signal and does not indicate startup problems.)
—The slot1 and slot 2 LEDs light after the enabled LED and indicate which PCMCIA slot is
in use.
During a successful router boot, these LEDs light and remain on if a Flash memory card is
present in the slot. These LEDs also blink when either slot is being accessed by the system.
These LEDs do not indicate startup problems.
•The port-adapter-enabled LEDs each light when the network processor card complete s its
initialization of the port adapter for operation.
The enabled LED indicates that the port adapter is receiving power and has been recognized by
the network processor card; it does not indicate the state of the indi vid ual port adap ter int erf aces.
If an enabled LED does not light, proceed to the section “Troubleshooting the Port Adapters,”
later in this chapter.