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2 – General Description
Chassis Controls
2-8 SN0051102-00 A
S
Maintenance Button
The maintenance button is a multifunction momentary switch on the front panel. It
has the following functions:
Reset a Router (see page 2-9)
Reset and Select Boot Image (see page 2-9)
Reset IP Address (see section page 2-9)
Enable DHCP (see section page 2-9)
Restore Factory Defaults (see page 2-9)
Reset a Router
To reset the router, use a pointed, nonmetallic tool to momentarily press and
release (less than two seconds) the maintenance button. The router responds as
follows:
1. All the chassis LEDs illuminate.
2. After about two seconds, the POST begins, turning off the heartbeat and
system fault LEDs.
3. When the POST is complete, the power LED is on and the heartbeat LED
flashes once per second.
Reset and Select Boot Image
You can reset the router using either the primary or secondary boot image:
Primary Image – To reset the router and select the primary boot image, use
a pointed, nonmetallic tool to press and hold the maintenance button until
the heartbeat LED flashes once, then release the button. The router boots
from the primary boot image. The boot time is less than one minute.
Secondary Image – To reset the router and select the secondary boot
image, use a pointed, nonmetallic tool to press and hold the maintenance
button until the heartbeat LED flashes twice, then release the button. The
heartbeat LED flashes twice. The router boots from the secondary boot
image. The boot time is less than one minute.
Reset IP Address
To reset the router and restore the maintenance port IP address to the default
(10.0.0.1), use a pointed, nonmetallic tool to press and hold the maintenance
button until the heartbeat LED flashes six times, then release the button. The
router boots and sets the maintenance port to IP address 10.0.0.1. The boot
time is less than one minute.