Cisco ONS 15454 SDH E1-75 Manual de referencia - Página 5
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Chapter 1
Shelf and FMEC Hardware
Figure 1-2
1.3 Front Door
The Critical, Major, and Minor alarm LEDs visible through the front door indicate whether a critical,
major, or minor alarm is present anywhere on the ONS 15454 SDH. These LEDs must be visible so
technicians can quickly determine if any alarms are present. You can use the LCD to further isolate
alarms.
April 2008
Typical DWDM Equipment Layout
FUSE & ALARM PANEL
FIBER STORAGE
FIBER STORAGE
FIBER STORAGE
FIBER STORAGE
PATCH PANEL
PATCH PANEL
DCU
DCU
AIR RAMP
ETSI
SHELF
AIR RAMP
STORAGE
AIR RAMP
ETSI
SHELF
AIR RAMP
ETSI 600 x 300
Cisco ONS 15454 SDH Reference Manual, R4.6
1.3 Front Door
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