Figure 15-39 Tie-Down Bar On The Cisco Ons 15454 Ansi Shelf Assembly - Cisco ONS 15454 DWDM Installation And Operation Manual

Chapter 15 Shelf Hardware Reference
Figure 15-39
15.12 Fan-Tray Assembly
The fan-tray assembly is located at the bottom of the ONS 15454 shelf assembly. The fan tray is a
removable drawer that holds fans and fan-control circuitry for the ONS 15454. The front door can be left
in place or removed before installing the fan-tray assembly. After you install the fan tray, you should
only need to access it if a fan failure occurs or if you need to replace or clean the fan-tray air filter. Refer
to Chapter 13, "Maintain the Node"
The front of the fan-tray assembly has an LCD screen that provides slot- and port-level information for
all card slots, including the number of Critical, Major, and Minor alarms.
The fan-tray assembly features an air filter at the bottom of the tray that you can install and remove by
hand. Remove and visually inspect this filter every 30 days and keep spare filters in stock. Refer to
Chapter 13, "Maintain the Node,"
Caution Do not operate an ONS 15454 without the mandatory fan-tray air filter.
The 15454-FTA3-T fan-tray assembly can only be installed in ONS 15454 Release 3.1 and later shelf
Caution
assemblies (15454-SA-ANSI, P/N: 800-19857; 15454-SA-HD, P/N: 800-24848). The fan-tray assembly
includes a pin that prevents it from being installed in ONS 15454 shelf assemblies released before
ONS 15454 Release 3.1 (15454-SA-NEBS3E, 15454-SA-NEBS3, and 15454-SA-R1). Equipment
damage can result from attempting to install the 15454-FTA3 in a noncompatible shelf assembly.
See
September 2005
Tie-Down Bar on the Cisco ONS 15454 ANSI Shelf Assembly
Figure 15-40 for the position of the ONS 15454 ETSI fan-tray assembly.
Tie-down bar
to clean and replace the fan-tray assembly.
for information about cleaning and maintaining the fan-tray air filter.
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
15.12 Fan-Tray Assembly
15-41