Installing A Fan Tray - Avaya Virtual Services Platform 7200 Series Installation Manual

Installing a fan tray

The VSP 7200 comes with three 12–V fan trays for either front-to-back or back-to-front air flow
switch cooling.
Important:
Make sure the air flow direction of your power supplies matches the same direction for your fan
trays.
Refer to the following part numbers to ensure that you install the correct fan trays in your switch.
Both the VSP 7254XSQ (fiber switch) and the VSP 7254XTQ (copper switch) use the same fan
tray models:
• EC7200BTF-E6 — 12 V BACK2FRONT SPARE FAN TRAYS (INC 3 FAN TRAY KITS)
• EC7200FTB-E6 — 12 V FRONT2BACK SPARE FAN TRAYS (INC 3 FAN TRAY KITS)
There are sensors inside the chassis that monitor the temperature. These sensors send information
to a controller that automatically regulates the fan speed to maintain the proper temperature. If any
sensor exceeds its threshold, an alarm is sent. When the temperature cools by 2° below the
threshold, the alarm clears.
Use this procedure if a fan fails and you have to replace it.
Important:
All three fans must be installed at all times to ensure proper ventilation. If a fan fails, replace it
as soon as you can but leave it in place until you do. Leaving a fan bay unpopulated impairs the
ability of the remaining fans to cool the chassis.
Procedure
1. Check the Fan LED on the front of the chassis. Solid green indicates that all fan trays are
operating normally. Blinking amber indicates that a fan tray failed.
2. Enter the following command to determine which fan tray failed.
show sys-info fan
This command shows the status of each fan tray: up, down, or Not Present when a fan is
removed.
January 2015 Installation Job Aid for Avaya Virtual Services Platform 7200 Series
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