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SRX650 Services Gateway Grounding Specifications


To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the SRX650 Services Gateway must be adequately grounded before power is connected. You must provide a grounding lug to connect the services gateway to earth ground.


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

To ground the services gateway before connecting power, you connect the grounding cable to earth ground and then attach the lug on the cable to the chassis grounding point, using the screw.

Table 1 lists the specifications of the grounding cable used with the device.

Table 1: Grounding Cable Specifications for the SRX650 Services Gateway

Grounding Requirement


Grounding cable

8 AWG wire cable

Amperage of grounding cable

Up to 25A

Grounding lug

Panduit LCCX8-14A-L ground lug, or equivalent

Caution: For the NEBS compliant installation in an AC or DC system, use a ground wire of at least 8 American Wire Gauge (AWG). The ground wire must have an agency-approved crimped two holes connector attached to one end, with the other end attached to the building ground. The connector must be crimped with the proper tool, allowing it to be connected to both ground screws on the enclosure. Before crimping the ground wire into the ground lug (Panduit LCCX8-14A-L), ensure that the bare copper wire is cleaned and antioxidant is applied to the bare wire.

Caution: To ensure adequate bonding when attaching the ground lug, a minimum of 26.6 in-lbs of torque must be applied to the mounting hardware that is used to attach the ground lug.

Caution: When making the primary ground connection, metric M5 screws with star/lock washer must be used for anti-rotation. When connecting the device to the rack frame, use thread-forming screws and paint-piercing washers.