Juniper ACX500 Hardware Manual page 101

92
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 the routers, you must
connect a grounding cable to earth ground and then attach it to the chassis grounding points by using
the two screws provided. Figure 27 on page 92 shows the grounding points on the ACX500 indoor
router, and Figure 28 on page 93 shows the grounding points on the ACX500 outdoor router. The
location of the grounding points for the ACX500 routers is the same for both the AC and the DC
variants.
Two threaded holes are provided on the front of the router chassis for connecting the router to earth
ground. The grounding points fit 0.5-inch-long SAE 10-32 screws (American). The grounding points are
spaced at 0.625 in. (15.86 mm) centers.
You must install the ACX500 router in a restricted-access location and ensure that the chassis is always
properly grounded. The ACX500 router has a two-hole protective grounding terminal provided on the
chassis. See Figure 27 on page 92 and Figure 28 on page 93. We recommend that you use this
protective grounding terminal as the preferred method for grounding the chassis regardless of the power
supply configuration. However, if additional grounding methods are available, you can also use those
methods. For example, you can use the grounding wire in the AC power cord or use the grounding
terminal or lug on a DC power supply. This tested system meets or exceeds all applicable EMC
regulatory requirements with the two-hole protective grounding terminal.
Figure 27: Grounding Points on the ACX500 Indoor Routers
Grounding points
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