Installation guide

Installing/removing a fan tray

CAUTION:

The HP 5900AF-48XG-4QSFP+ switches require two same-direction air flow fan trays to function

properly.

 Do not operate the system with one failed fan tray for more than 24 hours.

 Do not remove the failed fan tray until you are ready for replacing it.

 Do not operate the system without any fan tray for more than 2 minutes.

 Do not operate the system outside of the temperature range 0°C to 45°C (32°F to 113°F) degrees.

Failure to comply with these operating requirements may void the warranty.

Installing a fan tray

CAUTION:

To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If you

encounter resistance while inserting the fan tray, pull out the fan tray and insert it again.

To install a fan tray:

1. Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well grounded.

2. Unpack the fan tray and check that the fan tray model is correct.

3. Grasp the handle of the fan tray with one hand and support the fan tray bottom with the other, and

slide the fan tray along the guide rails into the slot until the fan tray seats in the slot and has a firm

contact with the backplane (see callout 1 in Figure 13 or Figure 14).

4. Fasten the captive screw on the fan tray with a Philips screwdriver until the fan tray is securely attached

in the chassis (see callout 2 in Figure 13 or Figure 14).

If the captive screw cannot be tightly fastened, check the installation of the fan tray.

Figure 13 Installing an LSWM1FANSC or LSWM1FANSCB fan tray