Grounding the SRX110 Services Gateway

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must adequately ground the SRX110 Services Gateway before connecting power.

Figure 24 illustrates connecting a grounding cable to the services gateway.

Figure 24: Grounding the SRX110 Services Gateway

Grounding the SRX110 Services

To ground the device, connect a grounding cable to earth ground and then attach it to the chassis grounding points, using one M3 screw.

Table 31 lists the specifications of the grounding cable used with the device.

Table 31: Grounding Cable Specifications for the Services Gateway

Grounding Requirement


Grounding cable

14 AWG single-strand wire cable

Amperage of grounding cable

Up to 4 A

Grounding lug

Ring-type, vinyl-insulated TV14-6R lug or equivalent

Caution: Before device installation begins, a licensed electrician must attach a cable lug to the grounding and power cables that you use. A cable with an incorrectly attached lug can damage the device (for example, by causing a short circuit).

To ground the device:

  1. Connect the grounding cable to a proper earth ground.
  2. Verify that a licensed electrician has attached the cable lug to the grounding cable.
  3. Place the grounding cable lug over the grounding point on the upper rear of the chassis.
  4. Secure the grounding cable lug to the grounding point with the screw. Apply between 6 in.-lb (0.67 Nm) and 8 in.-lb (0.9 Nm) of torque to the screws.
  5. Dress the grounding cable, and verify that it does not touch or block access to the services gateway components and that it does not cause a tripping hazard.

Note: The device should be permanently connected to ground during normal operation.

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