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    MX80 Router Grounding Specifications

    MX80 Chassis Grounding Points Specifications

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the router must be adequately grounded before power is connected. To ground AC-powered and DC-powered routers, you must connect a grounding cable to earth ground and then attach it to the chassis grounding points using the two screws provided (see Figure 1).

    Two threaded holes are provided on the upper rear of the chassis for connecting the router to earth ground. The grounding points fit SAE 10-32 screws (American). The grounding points are spaced at 0.625-in. (15.86-mm) centers.

    Note: Additional grounding is provided to an AC-powered router when you plug its power supplies into grounded AC power receptacles.

    Figure 1: Grounding Points on the MX80 Router

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    MX80 Router Grounding Cable Lug Specifications

    The accessory box shipped with the router includes one cable lug that attaches to the grounding cable (see Figure 2) and two SAE 10–32 screws used to secure the grounding cable to the grounding points.

    Figure 2: Grounding Cable Lug

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    Caution: Before router 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 router.

    MX80 Router Grounding Cable Specifications

    You must provide one grounding cable that meets the following specifications: 6-AWG (13.3 mm2), minimum 60°C wire, or as required by the local code.


    Published: 2010-10-22