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Step 4: Connect the Grounding Cable

Warning:

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must properly ground the firewall chassis before connecting power.

  1. Attach an ESD grounding strap to your bare wrist, and connect the other end of the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Connect the grounding cable to a proper earth ground.
  3. Verify that a licensed electrician has attached the cable lug provided with the firewall to the grounding cable. The cable must be 6-AWG (13.3 mm2), minimum 60°C wire.
  4. Make sure that grounding surfaces are clean and brought to a bright finish before grounding connections are made.
  5. Disconnect the ESD grounding strap from the site ESD grounding point, and connect it to one of the ESD points on the chassis. For more information about ESD, see the SRX5400 Firewall hardware documentation at www.juniper.net/documentation/.
  6. Place the grounding cable lug over the grounding point. The grounding point is sized for UNC 1/4-20 screws and 1/4 in. split washers, which are provided in the accessory box.
  7. Secure the grounding cable lug to the grounding point, first with the washers, and then with the screws as shown in Figure 1.
    Figure 1: Connecting the Grounding CableConnecting the Grounding Cable
  8. Verify that the grounding cabling is correct, that the grounding cable does not touch or block access to firewall components, and that it does not drape where people could trip over it.