Cisco Systems 15454 1.3 Front Door

1-6
Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 1 Shelf and Backplane Hardware
1.3 1.2.4 ONS 15454 Bay Assembly
1.2.4 ONS 15454 Bay Assembly
The Cisco ONS 15454 Bay Assembly simplifies ordering and installing the ONS 15454 because it allows
you to order shelf assemblies preinstalled in a seven-foot (2.133 m) rack. The Bay Assembly is available
in a three- or four-shelf configuration. The three-shelf configuration includes three ONS 15454 shelf
assemblies, a prewired fuse and alarm panel, and two cable-management trays. The four-shelf
configuration includes four ONS 15454 shelf assemblies and a prewired fuse and alarm panel. You can
order optional fiber channels with either configuration. Installation procedures are included in the
Unpacking and Installing the Cisco ONS 15454 Four-Shelf and Zero-Shelf Bay Assembly document that
ships with the Bay Assembly,
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. These LEDs must be visible so
technicians can quickly determine if any alarms are present on the ONS 15454 shelf or the network. You
can use the LCD to further isolate alarms. The front door (Figure 1-3) provides access to the shelf
assembly, cable-management tray, fan-tray assembly, and LCD screen.
Figure 1-3 The ONS 15454 Front Door
The ONS 15454 ships with a standard door but can also accommodate a deep door and extended fiber
clips (15454-DOOR-KIT) to provide additional room for cabling (Figure 1-4).
Door lock Door button
Viewholes for Critical, Major and Minor alarm LEDs
33923
CISCO ONS 15454
Optical Network System