Cisco 15600 - Manual (Page 56)

17-56
Cisco ONS 15600 Procedure Guide, R8.0
Chapter 17 DLPs E100 to E199
DLP- E171 Verify Fan Operation
Figure 17-8 ONS 15600 Shelf with One Fan Tray and Air Filter Removed
Step 2 To ensure the three front fans are operating, carefully place your hand in the card cage two to three inches
(50 to 76 mm) from the top of the cage, palm up, to feel for air flow from each fan. If you do not feel air
flow from one or more fans, refer to the Cisco ONS 15600 Troubleshooting Guide and make sure all fans
work before you install any cards.
Step 3 To ensure the three rear fans are operating, at the back of the bay carefully place your hand in the fan
outlet area above the CAP and place your palm face down on the grate to feel for air flow from each fan.
If you do not feel air flow from one or more fans, refer to the Cisco ONS 15600 Troubleshooting Guide
and make sure all fans work before you install any cards.
Step 4 Return to your originating procedure (NTP).
78564