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Chapter 1
Product Overview
Table 1-9
Alarm Cutoff and History Clear Buttons
Label
Location
Alarm cutoff
Recessed
push-button
switch
History CLR
Recessed
push-button
switch
Note
Flash SIMM
Flash PC Card Slots
Note
78-15095-01
Description
When pushed, software should turn off all external alarm relay
control bits until the next new alarm condition.
When pushed, software should turn off the HIST LED if there are
no major or minor alarm conditions.
To clear the switch alarms, use a thin tool (such as a small
screwdriver) to press and release the button.
The processor card Flash SIMM is a 16 MB, 80-pin SIMM that contains a
compressed Cisco IOS image that is loaded and executed automatically by
ROMMON upon powerup.
The processor card has two Flash PC Card slots that are accessible from the front
panel. Either slot can be a memory or an I/O device.
The Flash PC Cards are typically used to copy system images and save standard
configurations. Flash PC Cards are a type of Flash memory that provide expanded
file storage for your system. Flash PC Cards, unlike the onboard Flash SIMM
(bootflash), are not required for the operation of the system.
Not all cards that are commercially available are supported. Only
cards requiring 3.3V or 5V power are supported. No 12 VDC power
supply is available to the Flash PC Card slots.
Table 1-10
lists the Flash PC Card slot LEDs on the processor faceplate and what
the conditions indicate.
Cisco ONS 15540 ESP Hardware Installation Guide
Cisco ONS 15540 Components
1-21
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