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Below are some typical installations: <br />_I <br />0 <br />Installed on the ceiling <br />Installed on a nearby pole Installed on the exterior or interior wall of a building <br />102 <br />I�_I <br />,I <br />�I <br />O Charging station © Gateway <br />6.4. Junction Box <br />0 <br />8'-12' <br />All installations require the installation of the communication gateway inside an electrical <br />junction box. <br />6.4.1. Specifications <br />The junction box must have the following specifications: <br />• NEMA 4 type compliant watertight PVC electrical box. <br />• Large enough so that the gateway as well as the antenna is in the PVC electrical box. <br />The recommended dimensions are: 12" x 12'' x 4" (30.5 cm x 30.5 cm x 10.2 cm) or <br />larger. <br />• Must be non-metallic. Metallic surfaces block the communication signals. <br />• A 120 VAC electrical outlet must be installed in the junction box to power the <br />gateway. <br />NOTE: Use of a ground fault circuit interrupter outlet (GFCI) should be avoided unless <br />required by local code (e.g., NEC 210.8(B)). <br />21 <br />