Cisco ONS 15454 SDH - Terminal Loopbacks

1-5
Cisco ONS 15454 SDH Reference Manual, R4.6
April 2008
Chapter 1 Shelf and FMEC Hardware
1.3 Front Door
Figure 1-2 Typical DWDM Equipment Layout
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.
96606
2000 mm (78.74 in.)
FUSE & ALARM PANEL
FIBER STORAGE
FIBER STORAGE
FIBER STORAGE
FIBER STORAGE
PATCH PANEL
PATCH PANEL
DCU
DCU
AIR RAMP
AIR RAMP
STORAGE
AIR RAMP
AIR RAMP
ETSI
SHELF
ETSI
SHELF
ETSI 600 x 300