Chapter 4 Servicing the Device

5.Close the injector/ejector level to fully seat the fan module.

6.Secure the fan module in place by tightening the thumbscrew in the lock position.

To replace the fan module on a NetScreen-5400:

1.Loosen the top and bottom thumbscrews, turning them counterclockwise.

2.Grip the screws then gently slide the fan module out.

Warning: Do not remove the fan module while the fans are still spinning.

3.Insert the new fan module in the fan bay, then push it straight in.

4.Secure the fan module in place by tightening the thumbscrews clockwise.

CONNECTING AND DISCONNECTING GIGABIT ETHERNET CABLES

To connect a Gigabit Ethernet cable to a mini-GBIC connector transceiver port:

1.Hold the cable clip firmly but gently between your thumb and forefinger, with your thumb on top of the clip and your finger under the clip. (Do not depress the clip ejector on top of the clip.)

2.Slide the clip into the transceiver port until it clicks into place. Because the fit is close, you may have to apply some force to seat the clip. Apply force evenly and gently, to avoid clip breakage.

To remove the cable from the transceiver port:

1.Make sure the black transceiver ejector under the port is not pressed in; otherwise, when you attempt to remove the cable, the transceiver might come out with the cable still attached.

2.Hold the cable clip firmly but gently between your thumb and forefinger, with your thumb on top of the clip and your finger under the clip.

3.Use your thumb to gently press the clip ejector on top of the clip, down then forward. This action loosens the clip from the transceiver port.

4.Gently but firmly, pull the clip from the transceiver port.

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User’s Guide

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Juniper Networks 5000 SERIES manual Connecting and Disconnecting Gigabit Ethernet Cables