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Grounding the SRX100 Services Gateway


To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the SRX100 Services Gateway must be adequately grounded before power is connected.

Figure 1 illustrates how a grounding cable connects to the services gateway.

Figure 1: Grounding the SRX100 Services Gateway
Grounding the SRX100 Services

You ground the device by connecting a grounding cable to earth ground and then attaching it to the chassis grounding points using one M3 screw.


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).

Table 1 lists the grounding components of the SRX100 Services Gateway.

Table 1: SRX100 Services Gateway Grounding Components




Grounding point on the chassis


Grounding lug


Grounding screw (M3 screw)

Table 2 lists the specifications of the grounding cable used with the device.

Table 2: 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

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 middle rear of the chassis.
  4. Secure the grounding cable lug to the grounding point with the screw as shown in Figure 1.
  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 drape where people could trip on it.


The device should be permanently connected to ground during operation.