HP FlexFabric 12900 series, Installation Manual, Page: 32 / 124

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Installing a switching fabric module
Every 12910 AC switch has six switching fabric module slots numbered 10 through 15. For the proper
operation of the switch, at least one switching fabric module must be installed in slot 10, slot 11, or slot
12.
The gray edged switching fabric module slots of a 12910 AC switch are located at the rear panel. The
switching fabric modules are horizontally oriented. When installing a switching fabric module, make sure
its PCB faces up.
To install a switching fabric module:
1. Wear an ESD-preventive wrist strap, and make sure it makes good skin contact and is well
grounded. For more information, see "
Attaching an ESD-preventive wrist strap ."
2. Remove the filler panel (if any) from the target slot. Keep the filler panel for future use. See Figure
17 .
3. Loosen the captive screws on the protection box, hold the ejector levers on the switching fabric
module, pressing the buttons on the levers, pull the ejector levers outward, and pull out the module
from the protection box. See Figure 20 .
Keep the protection box for future use.
Figure 20 Removing the protection box
(1) Loosen the captive screws (2) Press down the buttons
(3) Pull the ejector levers outward (4) Pull out the switching fabric module
4. Hold the switching fabric module by the front panel with one hand and support its bottom with the
other. Slide the switching fabric module steadily into the target slot along the guide rails.
Do not touch the components on the PCB.
5. As shown in callout 1 in Figure 21 , push the switching fabric module until the brakes on the ejector
levers touch the slot edges tightly.
6. As shown in callout 2 in Figure 21 , press the ejector levers inward until the ejector levers touch the
panel tightly and the switching fabric module seats into the backplane
7. As shown in callout 3 in Figure 21 , fasten the captive screws on the switching fabric module.
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