Grounding the SRX240 Services Gateway
The following tools and parts are required for grounding the SRX240 Services Gateway:
Grounding cable for your services gateway—The grounding cable must be minimum 14 AWG (2 mm²), minimum 90°C wire, or as permitted by the local code.
Grounding lug—Ring-type, vinyl-insulated TV14-6R lug or equivalent for your grounding cable
Washers and 10-32x.25-in. screws to secure the grounding lug to the protective earthing terminal
Phillips (+) screwdrivers, numbers 1 and 2
Figure 1 shows the SRX240 grounding point.

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.
Table 1 lists the specifications of the grounding cable used with the device.
Table 1: Grounding Cable Specifications for the Services Gateway
Grounding Requirement | Specification |
---|---|
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 |
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:
- Connect the grounding cable to a proper earth ground.
- Verify that a licensed electrician has attached the cable lug to the grounding cable.
- Place the grounding cable lug over the grounding point on the upper rear of the chassis.
- 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.
- 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 create a tripping hazard.
The device should be permanently connected to ground during normal operation.