Name: Cisco ONS 15454 DWDM
Brand: Cisco
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Cisco ONS 15454 DWDM Reference Manual, R8.5

78-18343-02

Chapter 1 Shelf Assembly Hardware

1.13 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 the “Maintain the Node” chapter in the Cisco ONS 15454 DWDM Procedure Guide to clean and

replace the fan-tray assembly.

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 the

“Maintain the Node” chapter in the Cisco ONS 15454 DWDM Procedure Guide for information about

cleaning and maintaining the fan-tray air filter. Figure 1-51 shows the position of the ONS 15454 ETSI

fan-tray assembly. (The fan-tray assembly on the ONS 15454 ANSI is located in a similar position.)

Caution Do not operate an ONS 15454 without the mandatory fan-tray air filter.

Caution Fan-tray assembly 15454E-CC-FTA (ETSI shelf)/15454-CC-FTA (ANSI shelf) is required when any of

the following cards are used in an ONS 15454 DWDM application: ADM-10G, GE_XP, 10GE_XP,

ML-MR-10, and CE-MR-10.

Caution The 15454-FTA3-T fan-tray assembly can only be installed in ONS 15454 Release 3.1 and later shelf

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 an incompatible shelf assembly.

Note 15454-CC-FTA is compatible with Software Release 2.2.2 and greater and shelf assemblies

15454-SA-HD and 15454-SA-ANSI. 15454E-CC-FTA is compatible with Software Release 4.0 and

greater and shelf assembly 15454-SA-ETSI.

Cisco ONS 15454 DWDM Reference Manual

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