Cisco 4500-M Руководство по обновлению - Страница 7
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Step 7
Step 8
Proceed to the next section, "Removing Network Processor Modules."
Removing the Component Tray from a Chassis without a Safety Latch
Take the following steps to remove the component tray from a chassis without a safety latch:
Step 1
Step 2
Step 3
Step 4
Warning
the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that
services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of
the circuit breaker in the OFF position.
Step 5
Figure 4
Chassis shell
Support the component tray with one hand, push down on the safety latch tab, and pull the
component tray out the rest of the way.
Set the component tray on your work surface.
Turn OFF the system power.
Attach your ESD-preventive wrist strap.
Remove all network and power cables.
If you have a DC-powered router, take these steps to remove the power cables:
Before performing any of the following procedures, ensure that power is removed from
•
Use a screwdriver to loosen the captive installation screws on the terminal block cover.
•
Lift and remove the terminal block cover.
•
Use a screwdriver to remove the three power leads from the terminal block in the
following order: negative, positive, then ground.
Loosen the nonremovable chassis release screw on the rear panel of the chassis. (See
Figure 4.)
Component Tray Removal for Chassis without a Safety Latch
AUX
Rear of the chassis
Support the component
Upgrading Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M Memory
Accessing the Internal Components of the Router
Chassis release
screw
CONSOLE
tray with your hand
INPUT 100-240VAC
50/60HZ 3.0-1.5 AMPS
Handle
7